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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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<a href="#pub-methods">Public Member Functions</a> |
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<div class="title">wxKeyboardState Class Reference<div class="ingroups"><a class="el" href="group__group__class__events.html">Events</a></div></div> </div>
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<p><code>#include <wx/kbdstate.h></code></p>
<div id="dynsection-0" onclick="return toggleVisibility(this)" class="dynheader closed" style="cursor:pointer;">
<img id="dynsection-0-trigger" src="closed.png" alt="+"/> Inheritance diagram for wxKeyboardState:</div>
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<map name="wx_keyboard_state_inherit__map" id="wx_keyboard_state_inherit__map">
<area shape="rect" id="node3" href="classwx_key_event.html" title="This event class contains information about key press and release events." alt="" coords="5,83,96,111"/><area shape="rect" id="node5" href="classwx_mouse_state.html" title="Represents the mouse state." alt="" coords="120,83,227,111"/><area shape="rect" id="node7" href="classwx_mouse_event.html" title="This event class contains information about the events generated by the mouse: they include mouse but..." alt="" coords="120,161,227,189"/></map>
<center><span class="legend">[<a href="graph_legend.html">legend</a>]</span></center></div>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Provides methods for testing the state of the keyboard modifier keys. </p>
<p>This class is used as a base class of <a class="el" href="classwx_key_event.html" title="This event class contains information about key press and release events.">wxKeyEvent</a> and <a class="el" href="classwx_mouse_state.html" title="Represents the mouse state.">wxMouseState</a> and, hence, indirectly, of <a class="el" href="classwx_mouse_event.html" title="This event class contains information about the events generated by the mouse: they include mouse but...">wxMouseEvent</a>, so its methods may be used to get information about the modifier keys which were pressed when the event occurred.</p>
<p>This class is implemented entirely inline in <<a class="el" href="kbdstate_8h.html">wx/kbdstate.h</a>> and thus has no linking requirements.</p>
<h2></h2>
<div><span class="lib">Library:</span>  <span class="lib_text">None; this class implementation is entirely header-based.</span></div><div><span class="category">Category:</span>  <span class="category_text"><a class="el" href="group__group__class__events.html">Events</a></span></div><dl class="section see"><dt>See Also</dt><dd><a class="el" href="classwx_key_event.html" title="This event class contains information about key press and release events.">wxKeyEvent</a>, <a class="el" href="classwx_mouse_state.html" title="Represents the mouse state.">wxMouseState</a> </dd></dl>
</div><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:aabf0c85adc4d56ca6364694eb26e55a8"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classwx_keyboard_state.html#aabf0c85adc4d56ca6364694eb26e55a8">wxKeyboardState</a> (bool controlDown=false, bool shiftDown=false, bool altDown=false, bool metaDown=false)</td></tr>
<tr class="memdesc:aabf0c85adc4d56ca6364694eb26e55a8"><td class="mdescLeft"> </td><td class="mdescRight">Constructor initializes the modifier key settings. <a href="#aabf0c85adc4d56ca6364694eb26e55a8"></a><br/></td></tr>
<tr class="separator:aabf0c85adc4d56ca6364694eb26e55a8"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a44b1e849563ebf43e073915a447e4aa5"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="classwx_keyboard_state.html#a44b1e849563ebf43e073915a447e4aa5">GetModifiers</a> () const </td></tr>
<tr class="memdesc:a44b1e849563ebf43e073915a447e4aa5"><td class="mdescLeft"> </td><td class="mdescRight">Return the bit mask of all pressed modifier keys. <a href="#a44b1e849563ebf43e073915a447e4aa5"></a><br/></td></tr>
<tr class="separator:a44b1e849563ebf43e073915a447e4aa5"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a5a25ea99b0e7d1e8325cbe39c931e367"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classwx_keyboard_state.html#a5a25ea99b0e7d1e8325cbe39c931e367">HasAnyModifiers</a> () const </td></tr>
<tr class="memdesc:a5a25ea99b0e7d1e8325cbe39c931e367"><td class="mdescLeft"> </td><td class="mdescRight">Returns true if any modifiers at all are pressed. <a href="#a5a25ea99b0e7d1e8325cbe39c931e367"></a><br/></td></tr>
<tr class="separator:a5a25ea99b0e7d1e8325cbe39c931e367"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a85ae7433cada04555d88704066a2f4fb"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classwx_keyboard_state.html#a85ae7433cada04555d88704066a2f4fb">HasModifiers</a> () const </td></tr>
<tr class="memdesc:a85ae7433cada04555d88704066a2f4fb"><td class="mdescLeft"> </td><td class="mdescRight">Returns true if Control or Alt are pressed. <a href="#a85ae7433cada04555d88704066a2f4fb"></a><br/></td></tr>
<tr class="separator:a85ae7433cada04555d88704066a2f4fb"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ae25436ceab56c88411dac479106b18dd"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classwx_keyboard_state.html#ae25436ceab56c88411dac479106b18dd">ControlDown</a> () const </td></tr>
<tr class="memdesc:ae25436ceab56c88411dac479106b18dd"><td class="mdescLeft"> </td><td class="mdescRight">Returns true if the Control key or Apple/Command key under OS X is pressed. <a href="#ae25436ceab56c88411dac479106b18dd"></a><br/></td></tr>
<tr class="separator:ae25436ceab56c88411dac479106b18dd"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ab0488a268111109cb6ff0ebd09e91ad1"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classwx_keyboard_state.html#ab0488a268111109cb6ff0ebd09e91ad1">RawControlDown</a> () const </td></tr>
<tr class="memdesc:ab0488a268111109cb6ff0ebd09e91ad1"><td class="mdescLeft"> </td><td class="mdescRight">Returns true if the Control key (also under OS X). <a href="#ab0488a268111109cb6ff0ebd09e91ad1"></a><br/></td></tr>
<tr class="separator:ab0488a268111109cb6ff0ebd09e91ad1"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a63b9ec3a2f30011471a7036853fc38f3"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classwx_keyboard_state.html#a63b9ec3a2f30011471a7036853fc38f3">ShiftDown</a> () const </td></tr>
<tr class="memdesc:a63b9ec3a2f30011471a7036853fc38f3"><td class="mdescLeft"> </td><td class="mdescRight">Returns true if the Shift key is pressed. <a href="#a63b9ec3a2f30011471a7036853fc38f3"></a><br/></td></tr>
<tr class="separator:a63b9ec3a2f30011471a7036853fc38f3"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a8875366f7792d7fd5308cc240f5f0c5f"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classwx_keyboard_state.html#a8875366f7792d7fd5308cc240f5f0c5f">MetaDown</a> () const </td></tr>
<tr class="memdesc:a8875366f7792d7fd5308cc240f5f0c5f"><td class="mdescLeft"> </td><td class="mdescRight">Returns true if the Meta/Windows/Apple key is pressed. <a href="#a8875366f7792d7fd5308cc240f5f0c5f"></a><br/></td></tr>
<tr class="separator:a8875366f7792d7fd5308cc240f5f0c5f"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:af71012a9fdbd32bbdc391c984ec5a588"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classwx_keyboard_state.html#af71012a9fdbd32bbdc391c984ec5a588">AltDown</a> () const </td></tr>
<tr class="memdesc:af71012a9fdbd32bbdc391c984ec5a588"><td class="mdescLeft"> </td><td class="mdescRight">Returns true if the Alt key is pressed. <a href="#af71012a9fdbd32bbdc391c984ec5a588"></a><br/></td></tr>
<tr class="separator:af71012a9fdbd32bbdc391c984ec5a588"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a05240fdaf0b5cc9db5f8207d0b8062de"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classwx_keyboard_state.html#a05240fdaf0b5cc9db5f8207d0b8062de">CmdDown</a> () const </td></tr>
<tr class="memdesc:a05240fdaf0b5cc9db5f8207d0b8062de"><td class="mdescLeft"> </td><td class="mdescRight">Returns true if the key used for command accelerators is pressed. <a href="#a05240fdaf0b5cc9db5f8207d0b8062de"></a><br/></td></tr>
<tr class="separator:a05240fdaf0b5cc9db5f8207d0b8062de"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ac9e9f195b68f79f4aac683bb7eb620dd"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classwx_keyboard_state.html#ac9e9f195b68f79f4aac683bb7eb620dd">SetControlDown</a> (bool down)</td></tr>
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<tr class="memitem:a3a200bfbfaa31597f791e5bd57b99db6"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classwx_keyboard_state.html#a3a200bfbfaa31597f791e5bd57b99db6">SetRawControlDown</a> (bool down)</td></tr>
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<tr class="memitem:a5a8f8337c65248310363aedf228303e9"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classwx_keyboard_state.html#a5a8f8337c65248310363aedf228303e9">SetShiftDown</a> (bool down)</td></tr>
<tr class="separator:a5a8f8337c65248310363aedf228303e9"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a6ba12f87c2c95364528ab152fa813de0"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classwx_keyboard_state.html#a6ba12f87c2c95364528ab152fa813de0">SetAltDown</a> (bool down)</td></tr>
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<tr class="memitem:adb5578cce4dce054cd24c7eb3cd650e7"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classwx_keyboard_state.html#adb5578cce4dce054cd24c7eb3cd650e7">SetMetaDown</a> (bool down)</td></tr>
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<h2 class="groupheader">Constructor & Destructor Documentation</h2>
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<td class="memname">wxKeyboardState::wxKeyboardState </td>
<td>(</td>
<td class="paramtype">bool </td>
<td class="paramname"><em>controlDown</em> = <code>false</code>, </td>
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<td class="paramtype">bool </td>
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<td class="paramtype">bool </td>
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<p>Constructor initializes the modifier key settings. </p>
<p>By default, no modifiers are active. </p>
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<h2 class="groupheader">Member Function Documentation</h2>
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<td class="memname">bool wxKeyboardState::AltDown </td>
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<p>Returns true if the Alt key is pressed. </p>
<p>Notice that <a class="el" href="classwx_keyboard_state.html#a44b1e849563ebf43e073915a447e4aa5" title="Return the bit mask of all pressed modifier keys.">GetModifiers()</a> should usually be used instead of this one. </p>
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<td class="memname">bool wxKeyboardState::CmdDown </td>
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<p>Returns true if the key used for command accelerators is pressed. </p>
<p>Same as <a class="el" href="classwx_keyboard_state.html#ae25436ceab56c88411dac479106b18dd" title="Returns true if the Control key or Apple/Command key under OS X is pressed.">ControlDown()</a>. Deprecated.</p>
<p>Notice that <a class="el" href="classwx_keyboard_state.html#a44b1e849563ebf43e073915a447e4aa5" title="Return the bit mask of all pressed modifier keys.">GetModifiers()</a> should usually be used instead of this one. </p>
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<td class="memname">bool wxKeyboardState::ControlDown </td>
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<p>Returns true if the Control key or Apple/Command key under OS X is pressed. </p>
<p>This function doesn't distinguish between right and left control keys.</p>
<p>Notice that <a class="el" href="classwx_keyboard_state.html#a44b1e849563ebf43e073915a447e4aa5" title="Return the bit mask of all pressed modifier keys.">GetModifiers()</a> should usually be used instead of this one. </p>
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<td class="memname">int wxKeyboardState::GetModifiers </td>
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<p>Return the bit mask of all pressed modifier keys. </p>
<p>The return value is a combination of <code>wxMOD_ALT</code>, <code>wxMOD_CONTROL</code>, <code>wxMOD_SHIFT</code> and <code>wxMOD_META</code> bit masks. Additionally, <code>wxMOD_NONE</code> is defined as 0, i.e. corresponds to no modifiers (see <a class="el" href="classwx_keyboard_state.html#a5a25ea99b0e7d1e8325cbe39c931e367" title="Returns true if any modifiers at all are pressed.">HasAnyModifiers()</a>) and <code>wxMOD_CMD</code> is either <code>wxMOD_CONTROL</code> (MSW and Unix) or <code>wxMOD_META</code> (Mac), see <a class="el" href="classwx_keyboard_state.html#a05240fdaf0b5cc9db5f8207d0b8062de" title="Returns true if the key used for command accelerators is pressed.">CmdDown()</a>. See <a class="el" href="defs_8h.html#a5b81968ab866f5874cabc504490ae5cd" title="This enum contains bit mask constants used in wxKeyEvent.">wxKeyModifier</a> for the full list of modifiers.</p>
<p>Notice that this function is easier to use correctly than, for example, <a class="el" href="classwx_keyboard_state.html#ae25436ceab56c88411dac479106b18dd" title="Returns true if the Control key or Apple/Command key under OS X is pressed.">ControlDown()</a> because when using the latter you also have to remember to test that none of the other modifiers is pressed:</p>
<div class="fragment"><div class="line"><span class="keywordflow">if</span> ( <a class="code" href="classwx_keyboard_state.html#ae25436ceab56c88411dac479106b18dd" title="Returns true if the Control key or Apple/Command key under OS X is pressed.">ControlDown</a>() && !<a class="code" href="classwx_keyboard_state.html#af71012a9fdbd32bbdc391c984ec5a588" title="Returns true if the Alt key is pressed.">AltDown</a>() && !<a class="code" href="classwx_keyboard_state.html#a63b9ec3a2f30011471a7036853fc38f3" title="Returns true if the Shift key is pressed.">ShiftDown</a>() && !<a class="code" href="classwx_keyboard_state.html#a8875366f7792d7fd5308cc240f5f0c5f" title="Returns true if the Meta/Windows/Apple key is pressed.">MetaDown</a>() )</div>
<div class="line"> ... handle Ctrl-XXX ...</div>
</div><!-- fragment --><p>and forgetting to do it can result in serious program bugs (e.g. program not working with European keyboard layout where <code>AltGr</code> key which is seen by the program as combination of CTRL and ALT is used). On the other hand, you can simply write:</p>
<div class="fragment"><div class="line"><span class="keywordflow">if</span> ( <a class="code" href="classwx_keyboard_state.html#a44b1e849563ebf43e073915a447e4aa5" title="Return the bit mask of all pressed modifier keys.">GetModifiers</a>() == <a class="code" href="defs_8h.html#a5b81968ab866f5874cabc504490ae5cda08db85848fe8fa43b85ba115050384db" title="Ctlr Key, corresponds to Command key on OS X.">wxMOD_CONTROL</a> )</div>
<div class="line"> ... handle Ctrl-XXX ...</div>
</div><!-- fragment --><p>with this function. </p>
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<p>Returns true if any modifiers at all are pressed. </p>
<p>This is equivalent to <code><a class="el" href="classwx_keyboard_state.html#a44b1e849563ebf43e073915a447e4aa5" title="Return the bit mask of all pressed modifier keys.">GetModifiers()</a></code> <code>!=</code> <code>wxMOD_NONE</code>.</p>
<p>Notice that this is different from <a class="el" href="classwx_keyboard_state.html#a85ae7433cada04555d88704066a2f4fb" title="Returns true if Control or Alt are pressed.">HasModifiers()</a> method which doesn't take e.g. Shift modifier into account. This method is most suitable for mouse events when any modifier, including Shift, can change the interpretation of the event.</p>
<dl class="section since"><dt>Since</dt><dd>2.9.5 </dd></dl>
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<p>Returns true if Control or Alt are pressed. </p>
<p>Checks if Control, Alt or, under OS X only, Command key are pressed (notice that the real Control key is still taken into account under OS X too).</p>
<p>This method returns <span class="literal">false</span> if only Shift is pressed for compatibility reasons and also because pressing Shift usually doesn't change the interpretation of key events, see <a class="el" href="classwx_keyboard_state.html#a5a25ea99b0e7d1e8325cbe39c931e367" title="Returns true if any modifiers at all are pressed.">HasAnyModifiers()</a> if you want to take Shift into account as well. </p>
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<p>Returns true if the Meta/Windows/Apple key is pressed. </p>
<p>This function tests the state of the key traditionally called Meta under Unix systems, Windows keys under MSW Notice that <a class="el" href="classwx_keyboard_state.html#a44b1e849563ebf43e073915a447e4aa5" title="Return the bit mask of all pressed modifier keys.">GetModifiers()</a> should usually be used instead of this one.</p>
<dl class="section see"><dt>See Also</dt><dd><a class="el" href="classwx_keyboard_state.html#a05240fdaf0b5cc9db5f8207d0b8062de" title="Returns true if the key used for command accelerators is pressed.">CmdDown()</a> </dd></dl>
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<p>Returns true if the Control key (also under OS X). </p>
<p>This function doesn't distinguish between right and left control keys.</p>
<p>Notice that <a class="el" href="classwx_keyboard_state.html#a44b1e849563ebf43e073915a447e4aa5" title="Return the bit mask of all pressed modifier keys.">GetModifiers()</a> should usually be used instead of this one. </p>
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<p>Returns true if the Shift key is pressed. </p>
<p>This function doesn't distinguish between right and left shift keys.</p>
<p>Notice that <a class="el" href="classwx_keyboard_state.html#a44b1e849563ebf43e073915a447e4aa5" title="Return the bit mask of all pressed modifier keys.">GetModifiers()</a> should usually be used instead of this one. </p>
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