group__class__fns.htm

MINIGUI1.6开发API

    <tr><td valign="top"></td><td valign="top"><em>pWndClass</em>&nbsp;</td><td>The pointer to a WNDCLASS structure which specifies the information of the window class.</td></tr>
  </table>
</dl>
<dl compact><dt><b>Returns:</b></dt><dd>TRUE on success, FALSE on error.</dd></dl>
<dl compact><dt><b>See also:</b></dt><dd><a class="el" href="group__class__fns.htm#ga3">UnregisterWindowClass</a>, <a class="el" href="group__class__fns.htm#ga0">WNDCLASS</a></dd></dl>
Example:<p>
<div class="fragment"><pre class="fragment"><span class="preprocessor">#define STEP_CTRL_NAME "mystep"</span>
<span class="preprocessor"></span>
<span class="preprocessor">#define MSG_SET_STEP_INFO   (MSG_USER + 1)</span>
<span class="preprocessor"></span><span class="preprocessor">#define MSG_SET_CURR_STEP   (MSG_USER + 2)</span>
<span class="preprocessor"></span>
<span class="keyword">static</span> <span class="keywordtype">int</span> StepControlProc (<a class="code" href="group__handles.htm#ga1">HWND</a> hwnd, 
                <span class="keywordtype">int</span> message, <a class="code" href="group__win32__types.htm#ga8">WPARAM</a> wParam, <a class="code" href="group__win32__types.htm#ga9">LPARAM</a> lParam)
{
    <a class="code" href="group__handles.htm#ga2">HDC</a> hdc;
    HELPWININFO* info;
    
    <span class="keywordflow">switch</span> (message) {
    <span class="keywordflow">case</span> <a class="code" href="group__paint__msgs.htm#ga3">MSG_PAINT</a>:
        hdc = <a class="code" href="group__window__general__fns.htm#ga30">BeginPaint</a> (hwnd);


        <span class="comment">/* Get the step information. */</span>
        info = (HELPWININFO*)<a class="code" href="group__window__general__fns.htm#ga21">GetWindowAdditionalData</a> (hwnd);

        <span class="comment">/* Draw the step information. */</span>
        ......

        <a class="code" href="group__window__general__fns.htm#ga31">EndPaint</a> (hwnd, hdc);
        <span class="keywordflow">break</span>;

    <span class="comment">/* A message defined by the control, used to set the step information. */</span>
    <span class="keywordflow">case</span> MSG_SET_STEP_INFO:
        <a class="code" href="group__window__general__fns.htm#ga22">SetWindowAdditionalData</a> (hwnd, (<a class="code" href="group__win32__types.htm#ga4">DWORD</a>)lParam);
        <a class="code" href="group__window__general__fns.htm#ga29">InvalidateRect</a> (hwnd, <a class="code" href="group__simple__types.htm#ga3">NULL</a>, <a class="code" href="group__simple__types.htm#ga2">TRUE</a>);
        <span class="keywordflow">break</span>;

    <span class="comment">/*</span>
<span class="comment">     * A message defined by the control, used to set the information</span>
<span class="comment">     * of the current step.</span>
<span class="comment">     */</span>
    <span class="keywordflow">case</span> MSG_SET_CURR_STEP:
        <a class="code" href="group__window__general__fns.htm#ga29">InvalidateRect</a> (hwnd, <a class="code" href="group__simple__types.htm#ga3">NULL</a>, <a class="code" href="group__simple__types.htm#ga1">FALSE</a>);
        <span class="keywordflow">break</span>;

    <span class="keywordflow">case</span> <a class="code" href="group__creation__msgs.htm#ga5">MSG_DESTROY</a>:
        <span class="keywordflow">break</span>;
    }

    <span class="keywordflow">return</span> <a class="code" href="group__window__create__fns.htm#ga21">DefaultControlProc</a> (hwnd, message, wParam, lParam);
}


<span class="keyword">static</span> <a class="code" href="group__simple__types.htm#ga0">BOOL</a> RegisterStepControl ()
{
    <span class="keywordtype">int</span> result;
    <a class="code" href="struct__WNDCLASS.htm">WNDCLASS</a> StepClass;

    StepClass.<a class="code" href="struct__WNDCLASS.htm#o0">spClassName</a> = STEP_CTRL_NAME;
    StepClass.<a class="code" href="struct__WNDCLASS.htm#o2">dwStyle</a>     = 0;
    StepClass.<a class="code" href="struct__WNDCLASS.htm#o4">hCursor</a>     = <a class="code" href="group__cursor__fns.htm#ga4">GetSystemCursor</a> (<a class="code" href="group__cursor__fns.htm#ga14">IDC_ARROW</a>);
    StepClass.<a class="code" href="struct__WNDCLASS.htm#o5">iBkColor</a>    = <a class="code" href="group__color__vars.htm#ga36">COLOR_lightwhite</a>;
    StepClass.<a class="code" href="struct__WNDCLASS.htm#o6">WinProc</a>     = StepControlProc;

    <span class="keywordflow">return</span> <a class="code" href="group__class__fns.htm#ga2">RegisterWindowClass</a> (&amp;StepClass);
}

<span class="keyword">static</span> <span class="keywordtype">void</span> UnregisterStepControl ()
{
    <a class="code" href="group__class__fns.htm#ga3">UnregisterWindowClass</a> (STEP_CTRL_NAME);
}
</pre></div>     </td>
  </tr>
</table>
<a class="anchor" name="ga6" doxytag="window.h::SetWindowClassInfo"></a><p>
<table class="mdTable" cellpadding="2" cellspacing="0">
  <tr>
    <td class="mdRow">
      <table cellpadding="0" cellspacing="0" border="0">
        <tr>
          <td class="md" nowrap valign="top"><a class="el" href="group__simple__types.htm#ga0">BOOL</a> GUIAPI SetWindowClassInfo           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">const <a class="el" href="struct__WNDCLASS.htm">WNDCLASS</a> *&nbsp;</td>
          <td class="mdname1" valign="top" nowrap> <em>pWndClass</em>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
          <td class="md" nowrap></td>
        </tr>
      </table>
    </td>
  </tr>
</table>
<table cellspacing="5" cellpadding="0" border="0">
  <tr>
    <td>
      &nbsp;
    </td>
    <td>

<p>
Sets the information of the specified window class. 
<p>
This function sets the information of a window class. The window class to be operated is specified by <em>pWndClass-&gt;spClassName</em>.<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"></td><td valign="top"><em>pWndClass</em>&nbsp;</td><td>The pointer to a WNDCLASS structure, which specifies the new information of the window class.</td></tr>
  </table>
</dl>
<dl compact><dt><b>Returns:</b></dt><dd>TRUE on success, FALSE on error.</dd></dl>
<dl compact><dt><b>See also:</b></dt><dd><a class="el" href="group__class__fns.htm#ga5">GetWindowClassInfo</a> </dd></dl>
    </td>
  </tr>
</table>
<a class="anchor" name="ga3" doxytag="window.h::UnregisterWindowClass"></a><p>
<table class="mdTable" cellpadding="2" cellspacing="0">
  <tr>
    <td class="mdRow">
      <table cellpadding="0" cellspacing="0" border="0">
        <tr>
          <td class="md" nowrap valign="top"><a class="el" href="group__simple__types.htm#ga0">BOOL</a> GUIAPI UnregisterWindowClass           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">const char *&nbsp;</td>
          <td class="mdname1" valign="top" nowrap> <em>szClassName</em>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
          <td class="md" nowrap></td>
        </tr>
      </table>
    </td>
  </tr>
</table>
<table cellspacing="5" cellpadding="0" border="0">
  <tr>
    <td>
      &nbsp;
    </td>
    <td>

<p>
Undoes the effect of <em>RegisterWindowClass</em>. 
<p>
This function unregisters a registered window class specified by <em>szClassName</em>.<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"></td><td valign="top"><em>szClassName</em>&nbsp;</td><td>The name of the class to be unregistered.</td></tr>
  </table>
</dl>
<dl compact><dt><b>Returns:</b></dt><dd>TRUE on success, FALSE on error.</dd></dl>
<dl compact><dt><b>See also:</b></dt><dd><a class="el" href="group__class__fns.htm#ga2">RegisterWindowClass</a> </dd></dl>
    </td>
  </tr>
</table>
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<img src="http://www.minigui.com/api_ref/1.6.10/doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.4.2 </small></address>
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