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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<title>wxWidgets: Process Control</title>
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<span id="projectnumber">Version: 3.0.2</span>
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<div class="header">
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<a href="#nested-classes">Classes</a> |
<a href="#enum-members">Enumerations</a> |
<a href="#func-members">Functions</a> </div>
<div class="headertitle">
<div class="title">Process Control</div> </div>
<div class="ingroups"><a class="el" href="group__group__funcmacro.html">Functions and Macros by Category</a></div></div><!--header-->
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<p>The functions in this section are used to launch or terminate the other processes. </p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="nested-classes"></a>
Classes</h2></td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structwx_execute_env.html">wxExecuteEnv</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">This structure can optionally be passed to <a class="el" href="group__group__funcmacro__procctrl.html#gaa276e9e676e26bafeec3141b73399b33" title="Executes another program in Unix or Windows.">wxExecute()</a> to specify additional options to use for the child process. <a href="structwx_execute_env.html#details">More...</a><br/></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="enum-members"></a>
Enumerations</h2></td></tr>
<tr class="memitem:gaedcf2109f459315e1a7f2af73ec9b603"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom">{ <br/>
  <a class="el" href="group__group__funcmacro__procctrl.html#ggaedcf2109f459315e1a7f2af73ec9b603a457bddfa2a7ce4927358680893910cc8">wxEXEC_ASYNC</a> = 0,
<br/>
  <a class="el" href="group__group__funcmacro__procctrl.html#ggaedcf2109f459315e1a7f2af73ec9b603a412f75e022e82e7d8415109a6712be36">wxEXEC_SYNC</a> = 1,
<br/>
  <a class="el" href="group__group__funcmacro__procctrl.html#ggaedcf2109f459315e1a7f2af73ec9b603a433c517e46d1dd61a5dda1ffeb750552">wxEXEC_SHOW_CONSOLE</a> = 2,
<br/>
  <a class="el" href="group__group__funcmacro__procctrl.html#ggaedcf2109f459315e1a7f2af73ec9b603afd7547e6ac65800275cdffc7be65fd74">wxEXEC_MAKE_GROUP_LEADER</a> = 4,
<br/>
  <a class="el" href="group__group__funcmacro__procctrl.html#ggaedcf2109f459315e1a7f2af73ec9b603a8d51ac2386c10f6f5eb7c7a0704addb1">wxEXEC_NODISABLE</a> = 8,
<br/>
  <a class="el" href="group__group__funcmacro__procctrl.html#ggaedcf2109f459315e1a7f2af73ec9b603a00bae6530ff099a5ead1c80f81d5a5c9">wxEXEC_NOEVENTS</a> = 16,
<br/>
  <a class="el" href="group__group__funcmacro__procctrl.html#ggaedcf2109f459315e1a7f2af73ec9b603a6eb92c81a5e49ef172b9d74528be55a0">wxEXEC_HIDE_CONSOLE</a> = 32,
<br/>
  <a class="el" href="group__group__funcmacro__procctrl.html#ggaedcf2109f459315e1a7f2af73ec9b603a81dbb296e5efdd73668a1570e7af5716">wxEXEC_BLOCK</a> = wxEXEC_SYNC | wxEXEC_NOEVENTS
<br/>
}</td></tr>
<tr class="memdesc:gaedcf2109f459315e1a7f2af73ec9b603"><td class="mdescLeft"> </td><td class="mdescRight">Bit flags that can be used with <a class="el" href="group__group__funcmacro__procctrl.html#gaa276e9e676e26bafeec3141b73399b33" title="Executes another program in Unix or Windows.">wxExecute()</a>. <a href="group__group__funcmacro__procctrl.html#gaedcf2109f459315e1a7f2af73ec9b603">More...</a><br/></td></tr>
<tr class="separator:gaedcf2109f459315e1a7f2af73ec9b603"><td class="memSeparator" colspan="2"> </td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:ga3770f7ff142dab558f10ae354350874d"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__group__funcmacro__procctrl.html#ga3770f7ff142dab558f10ae354350874d">wxExit</a> ()</td></tr>
<tr class="memdesc:ga3770f7ff142dab558f10ae354350874d"><td class="mdescLeft"> </td><td class="mdescRight">Exits application after calling <a class="el" href="classwx_app_console.html#a5ee60051c92b0b2933258799626a0485" title="Override this member function for any processing which needs to be done as the application is about t...">wxApp::OnExit</a>. <a href="#ga3770f7ff142dab558f10ae354350874d"></a><br/></td></tr>
<tr class="separator:ga3770f7ff142dab558f10ae354350874d"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gaa276e9e676e26bafeec3141b73399b33"><td class="memItemLeft" align="right" valign="top">long </td><td class="memItemRight" valign="bottom"><a class="el" href="group__group__funcmacro__procctrl.html#gaa276e9e676e26bafeec3141b73399b33">wxExecute</a> (const <a class="el" href="classwx_string.html">wxString</a> &command, int flags=<a class="el" href="group__group__funcmacro__procctrl.html#ggaedcf2109f459315e1a7f2af73ec9b603a457bddfa2a7ce4927358680893910cc8">wxEXEC_ASYNC</a>, <a class="el" href="classwx_process.html">wxProcess</a> *callback=NULL, const <a class="el" href="structwx_execute_env.html">wxExecuteEnv</a> *env=NULL)</td></tr>
<tr class="memdesc:gaa276e9e676e26bafeec3141b73399b33"><td class="mdescLeft"> </td><td class="mdescRight">Executes another program in Unix or Windows. <a href="#gaa276e9e676e26bafeec3141b73399b33"></a><br/></td></tr>
<tr class="separator:gaa276e9e676e26bafeec3141b73399b33"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga8116ca17aec4eea74b848f1544805960"><td class="memItemLeft" align="right" valign="top">long </td><td class="memItemRight" valign="bottom"><a class="el" href="group__group__funcmacro__procctrl.html#ga8116ca17aec4eea74b848f1544805960">wxExecute</a> (char **argv, int flags=<a class="el" href="group__group__funcmacro__procctrl.html#ggaedcf2109f459315e1a7f2af73ec9b603a457bddfa2a7ce4927358680893910cc8">wxEXEC_ASYNC</a>, <a class="el" href="classwx_process.html">wxProcess</a> *callback=NULL, const <a class="el" href="structwx_execute_env.html">wxExecuteEnv</a> *env=NULL)</td></tr>
<tr class="memdesc:ga8116ca17aec4eea74b848f1544805960"><td class="mdescLeft"> </td><td class="mdescRight">This is an overloaded version of wxExecute(const wxString&,int,wxProcess*), please see its documentation for general information. <a href="#ga8116ca17aec4eea74b848f1544805960"></a><br/></td></tr>
<tr class="separator:ga8116ca17aec4eea74b848f1544805960"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gabba679a024d6a4a084fc8d16220c4d7b"><td class="memItemLeft" align="right" valign="top">long </td><td class="memItemRight" valign="bottom"><a class="el" href="group__group__funcmacro__procctrl.html#gabba679a024d6a4a084fc8d16220c4d7b">wxExecute</a> (wchar_t **argv, int flags=<a class="el" href="group__group__funcmacro__procctrl.html#ggaedcf2109f459315e1a7f2af73ec9b603a457bddfa2a7ce4927358680893910cc8">wxEXEC_ASYNC</a>, <a class="el" href="classwx_process.html">wxProcess</a> *callback=NULL, const <a class="el" href="structwx_execute_env.html">wxExecuteEnv</a> *env=NULL)</td></tr>
<tr class="separator:gabba679a024d6a4a084fc8d16220c4d7b"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga8f0c6749817ce450eae22290194c812e"><td class="memItemLeft" align="right" valign="top">long </td><td class="memItemRight" valign="bottom"><a class="el" href="group__group__funcmacro__procctrl.html#ga8f0c6749817ce450eae22290194c812e">wxExecute</a> (const <a class="el" href="classwx_string.html">wxString</a> &command, <a class="el" href="classwx_array_string.html">wxArrayString</a> &output, int flags=0, const <a class="el" href="structwx_execute_env.html">wxExecuteEnv</a> *env=NULL)</td></tr>
<tr class="memdesc:ga8f0c6749817ce450eae22290194c812e"><td class="mdescLeft"> </td><td class="mdescRight">This is an overloaded version of wxExecute(const wxString&,int,wxProcess*), please see its documentation for general information. <a href="#ga8f0c6749817ce450eae22290194c812e"></a><br/></td></tr>
<tr class="separator:ga8f0c6749817ce450eae22290194c812e"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga481a6f4eb3783d38e022aaca1b6ed757"><td class="memItemLeft" align="right" valign="top">long </td><td class="memItemRight" valign="bottom"><a class="el" href="group__group__funcmacro__procctrl.html#ga481a6f4eb3783d38e022aaca1b6ed757">wxExecute</a> (const <a class="el" href="classwx_string.html">wxString</a> &command, <a class="el" href="classwx_array_string.html">wxArrayString</a> &output, <a class="el" href="classwx_array_string.html">wxArrayString</a> &errors, int flags=0, const <a class="el" href="structwx_execute_env.html">wxExecuteEnv</a> *env=NULL)</td></tr>
<tr class="memdesc:ga481a6f4eb3783d38e022aaca1b6ed757"><td class="mdescLeft"> </td><td class="mdescRight">This is an overloaded version of wxExecute(const wxString&,int,wxProcess*), please see its documentation for general information. <a href="#ga481a6f4eb3783d38e022aaca1b6ed757"></a><br/></td></tr>
<tr class="separator:ga481a6f4eb3783d38e022aaca1b6ed757"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gab50b6a7e83f7a59d4c1d08d52505f8c6"><td class="memItemLeft" align="right" valign="top">unsigned long </td><td class="memItemRight" valign="bottom"><a class="el" href="group__group__funcmacro__procctrl.html#gab50b6a7e83f7a59d4c1d08d52505f8c6">wxGetProcessId</a> ()</td></tr>
<tr class="memdesc:gab50b6a7e83f7a59d4c1d08d52505f8c6"><td class="mdescLeft"> </td><td class="mdescRight">Returns the number uniquely identifying the current process in the system. <a href="#gab50b6a7e83f7a59d4c1d08d52505f8c6"></a><br/></td></tr>
<tr class="separator:gab50b6a7e83f7a59d4c1d08d52505f8c6"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gae3a7de5a29e70c77463dd1bc38fb98cf"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__group__funcmacro__procctrl.html#gae3a7de5a29e70c77463dd1bc38fb98cf">wxKill</a> (long pid, <a class="el" href="utils_8h.html#a20679c5ff68fdf39b9ea552b0d94c314">wxSignal</a> sig=<a class="el" href="utils_8h.html#a20679c5ff68fdf39b9ea552b0d94c314ae53272781ce284433c1aed7d4457b951">wxSIGTERM</a>, <a class="el" href="utils_8h.html#af9655b6ab587e0a65ad6f63eb32d814f">wxKillError</a> *rc=NULL, int flags=<a class="el" href="utils_8h.html#a03a0fc5862f90668a6d4cf968445b272a6daac111081c4e551647bd00c898c42c">wxKILL_NOCHILDREN</a>)</td></tr>
<tr class="memdesc:gae3a7de5a29e70c77463dd1bc38fb98cf"><td class="mdescLeft"> </td><td class="mdescRight">Equivalent to the Unix kill function: send the given signal <em>sig</em> to the process with PID <em>pid</em>. <a href="#gae3a7de5a29e70c77463dd1bc38fb98cf"></a><br/></td></tr>
<tr class="separator:gae3a7de5a29e70c77463dd1bc38fb98cf"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gad7f2f357f592f8c786ab05f516578023"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="group__group__funcmacro__procctrl.html#gad7f2f357f592f8c786ab05f516578023">wxShell</a> (const <a class="el" href="classwx_string.html">wxString</a> &command=<a class="el" href="interface_2wx_2string_8h.html#a9a321d587166a30017b608dd2d234033">wxEmptyString</a>)</td></tr>
<tr class="memdesc:gad7f2f357f592f8c786ab05f516578023"><td class="mdescLeft"> </td><td class="mdescRight">Executes a command in an interactive shell window. <a href="#gad7f2f357f592f8c786ab05f516578023"></a><br/></td></tr>
<tr class="separator:gad7f2f357f592f8c786ab05f516578023"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga3177c2a68564921806525f8fefa7e5c8"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="group__group__funcmacro__procctrl.html#ga3177c2a68564921806525f8fefa7e5c8">wxShutdown</a> (int flags=<a class="el" href="utils_8h.html#abacc7b19c541b5353890c078f734d291a6e11ecb7aca7a0d1c19a83ac87693a25">wxSHUTDOWN_POWEROFF</a>)</td></tr>
<tr class="memdesc:ga3177c2a68564921806525f8fefa7e5c8"><td class="mdescLeft"> </td><td class="mdescRight">This function shuts down or reboots the computer depending on the value of the <em>flags</em>. <a href="#ga3177c2a68564921806525f8fefa7e5c8"></a><br/></td></tr>
<tr class="separator:ga3177c2a68564921806525f8fefa7e5c8"><td class="memSeparator" colspan="2"> </td></tr>
</table>
<h2 class="groupheader">Enumeration Type Documentation</h2>
<a class="anchor" id="gaedcf2109f459315e1a7f2af73ec9b603"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
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<td class="memname">anonymous enum</td>
</tr>
</table>
</div><div class="memdoc">
<p>Bit flags that can be used with <a class="el" href="group__group__funcmacro__procctrl.html#gaa276e9e676e26bafeec3141b73399b33" title="Executes another program in Unix or Windows.">wxExecute()</a>. </p>
<dl><dt><b>Enumerator: </b></dt><dd><table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"><em><a class="anchor" id="ggaedcf2109f459315e1a7f2af73ec9b603a457bddfa2a7ce4927358680893910cc8"></a>wxEXEC_ASYNC</em> </td><td>
<p>Execute the process asynchronously. </p>
<p>Notice that, due to its value, this is the default. </p>
</td></tr>
<tr><td valign="top"><em><a class="anchor" id="ggaedcf2109f459315e1a7f2af73ec9b603a412f75e022e82e7d8415109a6712be36"></a>wxEXEC_SYNC</em> </td><td>
<p>Execute the process synchronously. </p>
</td></tr>
<tr><td valign="top"><em><a class="anchor" id="ggaedcf2109f459315e1a7f2af73ec9b603a433c517e46d1dd61a5dda1ffeb750552"></a>wxEXEC_SHOW_CONSOLE</em> </td><td>
<p>Always show the child process console under MSW. </p>
<p>The child console is hidden by default if the child IO is redirected, this flag allows to change this and show it nevertheless.</p>
<p>This flag is ignored under the other platforms. </p>
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<tr><td valign="top"><em><a class="anchor" id="ggaedcf2109f459315e1a7f2af73ec9b603afd7547e6ac65800275cdffc7be65fd74"></a>wxEXEC_MAKE_GROUP_LEADER</em> </td><td>
<p>Make the new process a group leader. </p>
<p>Under Unix, if the process is the group leader then passing wxKILL_CHILDREN to <a class="el" href="group__group__funcmacro__procctrl.html#gae3a7de5a29e70c77463dd1bc38fb98cf" title="Equivalent to the Unix kill function: send the given signal sig to the process with PID pid...">wxKill()</a> kills all children as well as pid.</p>
<p>Under MSW, applies only to console applications and is only supported under NT family (i.e. not under Windows 9x). It corresponds to the native <code>CREATE_NEW_PROCESS_GROUP</code> and, in particular, ensures that Ctrl-Break signals will be sent to all children of this process as well to the process itself. Support for this flag under MSW was added in version 2.9.4 of wxWidgets. </p>
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<tr><td valign="top"><em><a class="anchor" id="ggaedcf2109f459315e1a7f2af73ec9b603a8d51ac2386c10f6f5eb7c7a0704addb1"></a>wxEXEC_NODISABLE</em> </td><td>
<p>Don't disable the program UI while running the child synchronously. </p>
<p>By default synchronous execution disables all program windows to avoid that the user interacts with the program while the child process is running, you can use this flag to prevent this from happening.</p>
<p>This flag can only be used with <a class="el" href="group__group__funcmacro__procctrl.html#ggaedcf2109f459315e1a7f2af73ec9b603a412f75e022e82e7d8415109a6712be36" title="Execute the process synchronously.">wxEXEC_SYNC</a>. </p>
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<tr><td valign="top"><em><a class="anchor" id="ggaedcf2109f459315e1a7f2af73ec9b603a00bae6530ff099a5ead1c80f81d5a5c9"></a>wxEXEC_NOEVENTS</em> </td><td>
<p>Don't dispatch events while the child process is executed. </p>
<p>By default, the event loop is run while waiting for synchronous execution to complete and this flag can be used to simply block the main process until the child process finishes</p>
<p>This flag can only be used with <a class="el" href="group__group__funcmacro__procctrl.html#ggaedcf2109f459315e1a7f2af73ec9b603a412f75e022e82e7d8415109a6712be36" title="Execute the process synchronously.">wxEXEC_SYNC</a>. </p>
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<p>Hide child process console under MSW. </p>
<p>Under MSW, hide the console of the child process if it has one, even if its IO is not redirected.</p>
<p>This flag is ignored under the other platforms. </p>
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<p>Convenient synonym for flags given system()-like behaviour. </p>
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<h2 class="groupheader">Function Documentation</h2>
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<td class="memname">long wxExecute </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classwx_string.html">wxString</a> & </td>
<td class="paramname"><em>command</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">int </td>
<td class="paramname"><em>flags</em> = <code><a class="el" href="group__group__funcmacro__procctrl.html#ggaedcf2109f459315e1a7f2af73ec9b603a457bddfa2a7ce4927358680893910cc8">wxEXEC_ASYNC</a></code>, </td>
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<td class="paramtype"><a class="el" href="classwx_process.html">wxProcess</a> * </td>
<td class="paramname"><em>callback</em> = <code>NULL</code>, </td>
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<td class="paramtype">const <a class="el" href="structwx_execute_env.html">wxExecuteEnv</a> * </td>
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<p>Executes another program in Unix or Windows. </p>
<p>In the overloaded versions of this function, if <em>flags</em> parameter contains <code>wxEXEC_ASYNC</code> flag (the default), flow of control immediately returns. If it contains <code>wxEXEC_SYNC</code>, the current application waits until the other program has terminated.</p>
<p>In the case of synchronous execution, the return value is the exit code of the process (which terminates by the moment the function returns) and will be -1 if the process couldn't be started and typically 0 if the process terminated successfully. Also, while waiting for the process to terminate, <a class="el" href="group__group__funcmacro__procctrl.html#gaa276e9e676e26bafeec3141b73399b33" title="Executes another program in Unix or Windows.">wxExecute()</a> will call <a class="el" href="group__group__funcmacro__appinitterm.html#gac386c89a04e364afc07edce6d848c27a" title="Calls wxAppConsole::Yield.">wxYield()</a>. Because of this, by default this function disables all application windows to avoid unexpected reentrancies which could result from the users interaction with the program while the child process is running. If you are sure that it is safe to not disable the program windows, you may pass <code>wxEXEC_NODISABLE</code> flag to prevent this automatic disabling from happening.</p>
<p>For asynchronous execution, however, the return value is the process id and zero value indicates that the command could not be executed. As an added complication, the return value of -1 in this case indicates that we didn't launch a new process, but connected to the running one (this can only happen when using DDE under Windows for command execution). In particular, in this case only, the calling code will not get the notification about process termination.</p>
<p>If <em>callback</em> isn't <span class="literal">NULL</span> and if execution is asynchronous, <a class="el" href="classwx_process.html#aa378b7e705c9191431cad51a81581836" title="It is called when the process with the pid pid finishes.">wxProcess::OnTerminate()</a> will be called when the process finishes. Specifying this parameter also allows you to redirect the standard input and/or output of the process being launched by calling <a class="el" href="classwx_process.html#a9d1fc94d98e373c26dbb128516c2c348" title="Turns on redirection.">wxProcess::Redirect()</a>.</p>
<p>Under Windows, when launching a console process its console is shown by default but hidden if its IO is redirected. Both of these default behaviours may be overridden: if <a class="el" href="group__group__funcmacro__procctrl.html#ggaedcf2109f459315e1a7f2af73ec9b603a6eb92c81a5e49ef172b9d74528be55a0" title="Hide child process console under MSW.">wxEXEC_HIDE_CONSOLE</a> is specified, the console will never be shown. If <a class="el" href="group__group__funcmacro__procctrl.html#ggaedcf2109f459315e1a7f2af73ec9b603a433c517e46d1dd61a5dda1ffeb750552" title="Always show the child process console under MSW.">wxEXEC_SHOW_CONSOLE</a> is used, the console will be shown even if the child process IO is redirected. Neither of these flags affect non-console Windows applications or does anything under the other systems.</p>
<p>Under Unix the flag <code>wxEXEC_MAKE_GROUP_LEADER</code> may be used to ensure that the new process is a group leader (this will create a new session if needed). Calling <a class="el" href="group__group__funcmacro__procctrl.html#gae3a7de5a29e70c77463dd1bc38fb98cf" title="Equivalent to the Unix kill function: send the given signal sig to the process with PID pid...">wxKill()</a> passing wxKILL_CHILDREN will kill this process as well as all of its children (except those which have started their own session). Under MSW, this flag can be used with console processes only and corresponds to the native <code>CREATE_NEW_PROCESS_GROUP</code> flag.</p>
<p>The <code>wxEXEC_NOEVENTS</code> flag prevents processing of any events from taking place while the child process is running. It should be only used for very short-lived processes as otherwise the application windows risk becoming unresponsive from the users point of view. As this flag only makes sense with <code>wxEXEC_SYNC</code>, <code>wxEXEC_BLOCK</code> equal to the sum of both of these flags is provided as a convenience.</p>
<dl class="section note"><dt>Note</dt><dd>Currently <a class="el" href="group__group__funcmacro__procctrl.html#gaa276e9e676e26bafeec3141b73399b33" title="Executes another program in Unix or Windows.">wxExecute()</a> can only be used from the main thread, calling this function from another thread will result in an assert failure in debug build and won't work.</dd></dl>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">command</td><td>The command to execute and any parameters to pass to it as a single string, i.e. "emacs file.txt". </td></tr>
<tr><td class="paramname">flags</td><td>Must include either wxEXEC_ASYNC or wxEXEC_SYNC and can also include wxEXEC_SHOW_CONSOLE, wxEXEC_HIDE_CONSOLE, wxEXEC_MAKE_GROUP_LEADER (in either case) or wxEXEC_NODISABLE and wxEXEC_NOEVENTS or wxEXEC_BLOCK, which is equal to their combination, in wxEXEC_SYNC case. </td></tr>
<tr><td class="paramname">callback</td><td>An optional pointer to <a class="el" href="classwx_process.html" title="The objects of this class are used in conjunction with the wxExecute() function.">wxProcess</a>. </td></tr>
<tr><td class="paramname">env</td><td>An optional pointer to additional parameters for the child process, such as its initial working directory and environment variables. This parameter is available in wxWidgets 2.9.2 and later only.</td></tr>
</table>
</dd>
</dl>
<dl class="section see"><dt>See Also</dt><dd><a class="el" href="group__group__funcmacro__procctrl.html#gad7f2f357f592f8c786ab05f516578023" title="Executes a command in an interactive shell window.">wxShell()</a>, <a class="el" href="classwx_process.html" title="The objects of this class are used in conjunction with the wxExecute() function.">wxProcess</a>, <a class="el" href="page_samples.html#page_samples_exec">External Program Execution Sample</a>, <a class="el" href="group__group__funcmacro__misc.html#ga04038d4c78e4c111d018b8f82b2d66c3" title="Opens the document in the application associated with the files of this type.">wxLaunchDefaultApplication()</a>, <a class="el" href="group__group__funcmacro__misc.html#ga3ff36fe489da2a779248b56f283615ca" title="Opens the url in user's default browser.">wxLaunchDefaultBrowser()</a></dd></dl>
<p>Include file: </p>
<pre class="fragment">#include <wx/utils.h> </pre><p><b>wxPerl Note:</b> In wxPerl this function is called <code>Wx::ExecuteCommand</code>. </p>
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<td class="memname">long wxExecute </td>
<td>(</td>
<td class="paramtype">char ** </td>
<td class="paramname"><em>argv</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>flags</em> = <code><a class="el" href="group__group__funcmacro__procctrl.html#ggaedcf2109f459315e1a7f2af73ec9b603a457bddfa2a7ce4927358680893910cc8">wxEXEC_ASYNC</a></code>, </td>
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<td class="paramkey"></td>
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<td class="paramtype"><a class="el" href="classwx_process.html">wxProcess</a> * </td>
<td class="paramname"><em>callback</em> = <code>NULL</code>, </td>
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<td class="paramtype">const <a class="el" href="structwx_execute_env.html">wxExecuteEnv</a> * </td>
<td class="paramname"><em>env</em> = <code>NULL</code> </td>
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<p>This is an overloaded version of wxExecute(const wxString&,int,wxProcess*), please see its documentation for general information. </p>
<p>This version takes an array of values: a command, any number of arguments, terminated by <span class="literal">NULL</span>.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">argv</td><td>The command to execute should be the first element of this array, any additional ones are the command parameters and the array must be terminated with a <span class="literal">NULL</span> pointer. </td></tr>
<tr><td class="paramname">flags</td><td>Same as for wxExecute(const wxString&,int,wxProcess*) overload. </td></tr>
<tr><td class="paramname">callback</td><td>An optional pointer to <a class="el" href="classwx_process.html" title="The objects of this class are used in conjunction with the wxExecute() function.">wxProcess</a>. </td></tr>
<tr><td class="paramname">env</td><td>An optional pointer to additional parameters for the child process, such as its initial working directory and environment variables. This parameter is available in wxWidgets 2.9.2 and later only.</td></tr>
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</dd>
</dl>
<dl class="section see"><dt>See Also</dt><dd><a class="el" href="group__group__funcmacro__procctrl.html#gad7f2f357f592f8c786ab05f516578023" title="Executes a command in an interactive shell window.">wxShell()</a>, <a class="el" href="classwx_process.html" title="The objects of this class are used in conjunction with the wxExecute() function.">wxProcess</a>, <a class="el" href="page_samples.html#page_samples_exec">External Program Execution Sample</a>, <a class="el" href="group__group__funcmacro__misc.html#ga04038d4c78e4c111d018b8f82b2d66c3" title="Opens the document in the application associated with the files of this type.">wxLaunchDefaultApplication()</a>, <a class="el" href="group__group__funcmacro__misc.html#ga3ff36fe489da2a779248b56f283615ca" title="Opens the url in user's default browser.">wxLaunchDefaultBrowser()</a></dd></dl>
<p>Include file: </p>
<pre class="fragment">#include <wx/utils.h> </pre><p><b>wxPerl Note:</b> In wxPerl this function is called <code>Wx::ExecuteArgs</code>. </p>
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<td class="memname">long wxExecute </td>
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<td class="paramtype">wchar_t ** </td>
<td class="paramname"><em>argv</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>flags</em> = <code><a class="el" href="group__group__funcmacro__procctrl.html#ggaedcf2109f459315e1a7f2af73ec9b603a457bddfa2a7ce4927358680893910cc8">wxEXEC_ASYNC</a></code>, </td>
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<td class="paramkey"></td>
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<td class="paramtype"><a class="el" href="classwx_process.html">wxProcess</a> * </td>
<td class="paramname"><em>callback</em> = <code>NULL</code>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="structwx_execute_env.html">wxExecuteEnv</a> * </td>
<td class="paramname"><em>env</em> = <code>NULL</code> </td>
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<td class="memname">long wxExecute </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classwx_string.html">wxString</a> & </td>
<td class="paramname"><em>command</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="classwx_array_string.html">wxArrayString</a> & </td>
<td class="paramname"><em>output</em>, </td>
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<td class="paramname"><em>flags</em> = <code>0</code>, </td>
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<td></td>
<td class="paramtype">const <a class="el" href="structwx_execute_env.html">wxExecuteEnv</a> * </td>
<td class="paramname"><em>env</em> = <code>NULL</code> </td>
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<p>This is an overloaded version of wxExecute(const wxString&,int,wxProcess*), please see its documentation for general information. </p>
<p>This version can be used to execute a process (always synchronously, the contents of <em>flags</em> is or'd with <code>wxEXEC_SYNC</code>) and capture its output in the array <em>output</em>.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">command</td><td>The command to execute and any parameters to pass to it as a single string. </td></tr>
<tr><td class="paramname">output</td><td>The string array where the stdout of the executed process is saved. </td></tr>
<tr><td class="paramname">flags</td><td>Combination of flags to which <a class="el" href="group__group__funcmacro__procctrl.html#ggaedcf2109f459315e1a7f2af73ec9b603a412f75e022e82e7d8415109a6712be36" title="Execute the process synchronously.">wxEXEC_SYNC</a> is always implicitly added. </td></tr>
<tr><td class="paramname">env</td><td>An optional pointer to additional parameters for the child process, such as its initial working directory and environment variables. This parameter is available in wxWidgets 2.9.2 and later only.</td></tr>
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</dd>
</dl>
<dl class="section see"><dt>See Also</dt><dd><a class="el" href="group__group__funcmacro__procctrl.html#gad7f2f357f592f8c786ab05f516578023" title="Executes a command in an interactive shell window.">wxShell()</a>, <a class="el" href="classwx_process.html" title="The objects of this class are used in conjunction with the wxExecute() function.">wxProcess</a>, <a class="el" href="page_samples.html#page_samples_exec">External Program Execution Sample</a>, <a class="el" href="group__group__funcmacro__misc.html#ga04038d4c78e4c111d018b8f82b2d66c3" title="Opens the document in the application associated with the files of this type.">wxLaunchDefaultApplication()</a>, <a class="el" href="group__group__funcmacro__misc.html#ga3ff36fe489da2a779248b56f283615ca" title="Opens the url in user's default browser.">wxLaunchDefaultBrowser()</a></dd></dl>
<p>Include file: </p>
<pre class="fragment">#include <wx/utils.h> </pre><p><b>wxPerl Note:</b> This function is called <code>Wx::ExecuteStdout:</code> it only takes the <em>command</em> argument, and returns a 2-element list (<code>status</code>, <code>output</code>), where <code>output</code> in an array reference. </p>
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<td class="paramname"><em>command</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="classwx_array_string.html">wxArrayString</a> & </td>
<td class="paramname"><em>output</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="classwx_array_string.html">wxArrayString</a> & </td>
<td class="paramname"><em>errors</em>, </td>
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<td class="paramkey"></td>
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<td class="paramname"><em>flags</em> = <code>0</code>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="structwx_execute_env.html">wxExecuteEnv</a> * </td>
<td class="paramname"><em>env</em> = <code>NULL</code> </td>
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<p>This is an overloaded version of wxExecute(const wxString&,int,wxProcess*), please see its documentation for general information. </p>
<p>This version adds the possibility to additionally capture the messages from standard error output in the <em>errors</em> array. As with the above overload capturing standard output only, execution is always synchronous.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">command</td><td>The command to execute and any parameters to pass to it as a single string. </td></tr>
<tr><td class="paramname">output</td><td>The string array where the stdout of the executed process is saved. </td></tr>
<tr><td class="paramname">errors</td><td>The string array where the stderr of the executed process is saved. </td></tr>
<tr><td class="paramname">flags</td><td>Combination of flags to which <a class="el" href="group__group__funcmacro__procctrl.html#ggaedcf2109f459315e1a7f2af73ec9b603a412f75e022e82e7d8415109a6712be36" title="Execute the process synchronously.">wxEXEC_SYNC</a> is always implicitly added. </td></tr>
<tr><td class="paramname">env</td><td>An optional pointer to additional parameters for the child process, such as its initial working directory and environment variables. This parameter is available in wxWidgets 2.9.2 and later only.</td></tr>
</table>
</dd>
</dl>
<dl class="section see"><dt>See Also</dt><dd><a class="el" href="group__group__funcmacro__procctrl.html#gad7f2f357f592f8c786ab05f516578023" title="Executes a command in an interactive shell window.">wxShell()</a>, <a class="el" href="classwx_process.html" title="The objects of this class are used in conjunction with the wxExecute() function.">wxProcess</a>, <a class="el" href="page_samples.html#page_samples_exec">External Program Execution Sample</a>, <a class="el" href="group__group__funcmacro__misc.html#ga04038d4c78e4c111d018b8f82b2d66c3" title="Opens the document in the application associated with the files of this type.">wxLaunchDefaultApplication()</a>, <a class="el" href="group__group__funcmacro__misc.html#ga3ff36fe489da2a779248b56f283615ca" title="Opens the url in user's default browser.">wxLaunchDefaultBrowser()</a></dd></dl>
<p>Include file: </p>
<pre class="fragment">#include <wx/utils.h> </pre><p><b>wxPerl Note:</b> This function is called <code>Wx::ExecuteStdoutStderr:</code> it only takes the <em>command</em> argument, and returns a 3-element list (<code>status</code>, <code>output</code>, <code>errors</code>), where <code>output</code> and <code>errors</code> are array references. </p>
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<p>Exits application after calling <a class="el" href="classwx_app_console.html#a5ee60051c92b0b2933258799626a0485" title="Override this member function for any processing which needs to be done as the application is about t...">wxApp::OnExit</a>. </p>
<p>Should only be used in an emergency: normally the top-level frame should be deleted (after deleting all other frames) to terminate the application. See <a class="el" href="classwx_close_event.html" title="This event class contains information about window and session close events.">wxCloseEvent</a> and <a class="el" href="classwx_app.html" title="The wxApp class represents the application itself when wxUSE_GUI=1.">wxApp</a>.</p>
<p>Include file: </p>
<pre class="fragment">#include <wx/app.h> </pre>
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<td class="memname">unsigned long wxGetProcessId </td>
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<p>Returns the number uniquely identifying the current process in the system. </p>
<p>If an error occurs, 0 is returned.</p>
<p>Include file: </p>
<pre class="fragment">#include <wx/utils.h> </pre>
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<td class="memname">int wxKill </td>
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<td class="paramtype">long </td>
<td class="paramname"><em>pid</em>, </td>
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<td class="paramtype"><a class="el" href="utils_8h.html#a20679c5ff68fdf39b9ea552b0d94c314">wxSignal</a> </td>
<td class="paramname"><em>sig</em> = <code><a class="el" href="utils_8h.html#a20679c5ff68fdf39b9ea552b0d94c314ae53272781ce284433c1aed7d4457b951">wxSIGTERM</a></code>, </td>
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<td class="paramtype"><a class="el" href="utils_8h.html#af9655b6ab587e0a65ad6f63eb32d814f">wxKillError</a> * </td>
<td class="paramname"><em>rc</em> = <code>NULL</code>, </td>
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<td class="paramtype">int </td>
<td class="paramname"><em>flags</em> = <code><a class="el" href="utils_8h.html#a03a0fc5862f90668a6d4cf968445b272a6daac111081c4e551647bd00c898c42c">wxKILL_NOCHILDREN</a></code> </td>
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<p>Equivalent to the Unix kill function: send the given signal <em>sig</em> to the process with PID <em>pid</em>. </p>
<p>The valid signal values are:</p>
<div class="fragment"><div class="line"><span class="keyword">enum</span> <a class="code" href="utils_8h.html#a20679c5ff68fdf39b9ea552b0d94c314" title="Signal constants used by wxProcess.">wxSignal</a></div>
<div class="line">{</div>
<div class="line"> <a class="code" href="utils_8h.html#a20679c5ff68fdf39b9ea552b0d94c314ae642607b5b7e709b6e4b87039d25ca6a" title="verify if the process exists under Unix">wxSIGNONE</a> = 0, <span class="comment">// verify if the process exists under Unix</span></div>
<div class="line"> <a class="code" href="utils_8h.html#a20679c5ff68fdf39b9ea552b0d94c314afb13d3ae732f5e9ec0e07dfd85d86a9c">wxSIGHUP</a>,</div>
<div class="line"> <a class="code" href="utils_8h.html#a20679c5ff68fdf39b9ea552b0d94c314af4562905d83597f381104c16482cbb6c">wxSIGINT</a>,</div>
<div class="line"> <a class="code" href="utils_8h.html#a20679c5ff68fdf39b9ea552b0d94c314a6fa9706c853b48e2f1b3669fe468284d">wxSIGQUIT</a>,</div>
<div class="line"> <a class="code" href="utils_8h.html#a20679c5ff68fdf39b9ea552b0d94c314a0b70ce38f179007b68def47b052a3dd8">wxSIGILL</a>,</div>
<div class="line"> <a class="code" href="utils_8h.html#a20679c5ff68fdf39b9ea552b0d94c314a6d90c2a96bef2ee77a158abaf77778f6">wxSIGTRAP</a>,</div>
<div class="line"> <a class="code" href="utils_8h.html#a20679c5ff68fdf39b9ea552b0d94c314a9643a6b5f988df535c6bc623f6d153fb">wxSIGABRT</a>,</div>
<div class="line"> <a class="code" href="utils_8h.html#a20679c5ff68fdf39b9ea552b0d94c314aa6c621ec07fdf10677acee295e3c8f85">wxSIGEMT</a>,</div>
<div class="line"> <a class="code" href="utils_8h.html#a20679c5ff68fdf39b9ea552b0d94c314a655d4b96c0ccd68a189cb644b22a4ce1">wxSIGFPE</a>,</div>
<div class="line"> <a class="code" href="utils_8h.html#a20679c5ff68fdf39b9ea552b0d94c314af4b0ffd5af303d0794f9ecd58ed9a2b0" title="forcefully kill, dangerous!">wxSIGKILL</a>, <span class="comment">// forcefully kill, dangerous!</span></div>
<div class="line"> <a class="code" href="utils_8h.html#a20679c5ff68fdf39b9ea552b0d94c314a958b8241790be6e7be8fb6074427770b">wxSIGBUS</a>,</div>
<div class="line"> <a class="code" href="utils_8h.html#a20679c5ff68fdf39b9ea552b0d94c314a9fc992c7c8eddd3105d1c3c080a4143d">wxSIGSEGV</a>,</div>
<div class="line"> <a class="code" href="utils_8h.html#a20679c5ff68fdf39b9ea552b0d94c314aa7e7ee41dd3387d774b014d4c0b45f53">wxSIGSYS</a>,</div>
<div class="line"> <a class="code" href="utils_8h.html#a20679c5ff68fdf39b9ea552b0d94c314a13cdc0f322dd573168401981112be24a">wxSIGPIPE</a>,</div>
<div class="line"> <a class="code" href="utils_8h.html#a20679c5ff68fdf39b9ea552b0d94c314acd9f5bb5cb3c04ca790eaf16f65adf90">wxSIGALRM</a>,</div>
<div class="line"> <a class="code" href="utils_8h.html#a20679c5ff68fdf39b9ea552b0d94c314ae53272781ce284433c1aed7d4457b951" title="terminate the process gently">wxSIGTERM</a> <span class="comment">// terminate the process gently</span></div>
<div class="line">};</div>
</div><!-- fragment --><p><code>wxSIGNONE</code>, <code>wxSIGKILL</code> and <code>wxSIGTERM</code> have the same meaning under both Unix and Windows but all the other signals are equivalent to <code>wxSIGTERM</code> under Windows. Moreover, under Windows, <code>wxSIGTERM</code> is implemented by posting a message to the application window, so it only works if the application does have windows. If it doesn't, as is notably always the case for the console applications, you need to use <code>wxSIGKILL</code> to actually kill the process. Of course, this doesn't allow the process to shut down gracefully and so should be avoided if possible.</p>
<p>Returns 0 on success, -1 on failure. If the <em>rc</em> parameter is not <span class="literal">NULL</span>, it will be filled with a value from the <code>wxKillError</code> enum:</p>
<div class="fragment"><div class="line"><span class="keyword">enum</span> <a class="code" href="utils_8h.html#af9655b6ab587e0a65ad6f63eb32d814f" title="Return values for wxProcess::Kill.">wxKillError</a></div>
<div class="line">{</div>
<div class="line"> <a class="code" href="utils_8h.html#af9655b6ab587e0a65ad6f63eb32d814fa8b3d0f6e88641bade2f21b356f534116" title="no error">wxKILL_OK</a>, <span class="comment">// no error</span></div>
<div class="line"> <a class="code" href="utils_8h.html#af9655b6ab587e0a65ad6f63eb32d814fa32f4fc9699e037907b7db08cb28588b4" title="no such signal">wxKILL_BAD_SIGNAL</a>, <span class="comment">// no such signal</span></div>
<div class="line"> <a class="code" href="utils_8h.html#af9655b6ab587e0a65ad6f63eb32d814fab8516295327be51026247adaa82ef467" title="permission denied">wxKILL_ACCESS_DENIED</a>, <span class="comment">// permission denied</span></div>
<div class="line"> <a class="code" href="utils_8h.html#af9655b6ab587e0a65ad6f63eb32d814fa7cc78accfb5dba7833929628c8206c1e" title="no such process">wxKILL_NO_PROCESS</a>, <span class="comment">// no such process</span></div>
<div class="line"> <a class="code" href="utils_8h.html#af9655b6ab587e0a65ad6f63eb32d814fa416b6f81586bd58881566d42fad847f9" title="another, unspecified error">wxKILL_ERROR</a> <span class="comment">// another, unspecified error</span></div>
<div class="line">};</div>
</div><!-- fragment --><p>The <em>flags</em> parameter can be wxKILL_NOCHILDREN (the default), or wxKILL_CHILDREN, in which case the child processes of this process will be killed too. Note that under Unix, for wxKILL_CHILDREN to work you should have created the process by passing wxEXEC_MAKE_GROUP_LEADER to <a class="el" href="group__group__funcmacro__procctrl.html#gaa276e9e676e26bafeec3141b73399b33" title="Executes another program in Unix or Windows.">wxExecute()</a>.</p>
<dl class="section see"><dt>See Also</dt><dd><a class="el" href="classwx_process.html#a6b3ff71a9d026d93600add4cbb72a172" title="Send the specified signal to the given process.">wxProcess::Kill()</a>, <a class="el" href="classwx_process.html#a3c81aa4ef5b6b76018e245f0b004f51b" title="Returns true if the given process exists in the system.">wxProcess::Exists()</a>, <a class="el" href="page_samples.html#page_samples_exec">External Program Execution Sample</a></dd></dl>
<p>Include file: </p>
<pre class="fragment">#include <wx/utils.h> </pre>
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<td class="memname">bool wxShell </td>
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<td class="paramtype">const <a class="el" href="classwx_string.html">wxString</a> & </td>
<td class="paramname"><em>command</em> = <code><a class="el" href="interface_2wx_2string_8h.html#a9a321d587166a30017b608dd2d234033">wxEmptyString</a></code></td><td>)</td>
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<p>Executes a command in an interactive shell window. </p>
<p>If no command is specified, then just the shell is spawned.</p>
<dl class="section see"><dt>See Also</dt><dd><a class="el" href="group__group__funcmacro__procctrl.html#gaa276e9e676e26bafeec3141b73399b33" title="Executes another program in Unix or Windows.">wxExecute()</a>, <a class="el" href="page_samples.html#page_samples_exec">External Program Execution Sample</a></dd></dl>
<p>Include file: </p>
<pre class="fragment">#include <wx/utils.h> </pre>
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<td class="memname">bool wxShutdown </td>
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<td class="paramtype">int </td>
<td class="paramname"><em>flags</em> = <code><a class="el" href="utils_8h.html#abacc7b19c541b5353890c078f734d291a6e11ecb7aca7a0d1c19a83ac87693a25">wxSHUTDOWN_POWEROFF</a></code></td><td>)</td>
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<p>This function shuts down or reboots the computer depending on the value of the <em>flags</em>. </p>
<dl class="section note"><dt>Note</dt><dd>Note that performing the shutdown requires the corresponding access rights (superuser under Unix, SE_SHUTDOWN privilege under Windows NT) and that this function is only implemented under Unix and MSW.</dd></dl>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">flags</td><td>One of <code>wxSHUTDOWN_POWEROFF</code>, <code>wxSHUTDOWN_REBOOT</code> or <code>wxSHUTDOWN_LOGOFF</code> (currently implemented only for MSW) possibly combined with <code>wxSHUTDOWN_FORCE</code> which forces shutdown under MSW by forcefully terminating all the applications. As doing this can result in a data loss, this flag shouldn't be used unless really necessary.</td></tr>
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<dl class="section return"><dt>Returns</dt><dd><span class="literal">true</span> on success, <span class="literal">false</span> if an error occurred.</dd></dl>
<p>Include file: </p>
<pre class="fragment">#include <wx/utils.h> </pre>
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