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<div class="title">Buffer Classes </div> </div>
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<ul><li class="level1"><a href="#overview_bufferclasses_xcb">wxXCharBuffer</a><ul><li class="level2"><a href="#overview_bufferclasses_xcb_general">General Usage</a></li>
<li class="level2"><a href="#overview_bufferclasses_xcb_destruct">Destruction</a></li>
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<div class="textblock"><p>wxWidgets uses two classes of classes for dealing with buffers in memory.</p>
<p>The first is one for dealing with character buffers, namely <a class="el" href="classwx_char_buffer.html" title="This is a specialization of wxCharTypeBuffer<T> for char type.">wxCharBuffer</a> for char pointer or multi-byte c strings and <a class="el" href="classwx_w_char_buffer.html" title="This is a specialization of wxCharTypeBuffer<T> for wchar_t type.">wxWCharBuffer</a> for wchar_t pointer or wide character c strings.</p>
<p>Secondly, wxWidgets uses, although only rarely currently, <a class="el" href="classwx_memory_buffer.html" title="A wxMemoryBuffer is a useful data structure for storing arbitrary sized blocks of memory...">wxMemoryBuffer</a> for dealing with raw buffers in memory.</p>
<h1><a class="anchor" id="overview_bufferclasses_xcb"></a>
wxXCharBuffer</h1>
<h2><a class="anchor" id="overview_bufferclasses_xcb_general"></a>
General Usage</h2>
<p>As mentioned, <a class="el" href="classwx_char_buffer.html" title="This is a specialization of wxCharTypeBuffer<T> for char type.">wxCharBuffer</a> and its wide character variant <a class="el" href="classwx_w_char_buffer.html" title="This is a specialization of wxCharTypeBuffer<T> for wchar_t type.">wxWCharBuffer</a> deal with c strings in memory. They have two constructors, one in which you pass the c string you want them to have a copy of, and another where you specify the size of the buffer in memory in characters you want.</p>
<p><a class="el" href="classwx_char_buffer.html" title="This is a specialization of wxCharTypeBuffer<T> for char type.">wxCharBuffer</a> and its variant only contain the c string as a member, so they can be used safely to c functions with variable arguments such as printf. They also contain standard assignment, character access operators and a copy constructor.</p>
<h2><a class="anchor" id="overview_bufferclasses_xcb_destruct"></a>
Destruction</h2>
<p>It should be noted that on destruction <a class="el" href="classwx_char_buffer.html" title="This is a specialization of wxCharTypeBuffer<T> for char type.">wxCharBuffer</a> and its wide character variant delete the c string that hold onto. If you want to get the pointer to the buffer and don't want <a class="el" href="classwx_char_buffer.html" title="This is a specialization of wxCharTypeBuffer<T> for char type.">wxCharBuffer</a> to delete it on destruction, use the member function release to do so. </p>
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