class_csubclasswnd.html

用VC實現截取Window的消息

&nbsp;</td><td>
 [in] Specifies the message id.
 </td></tr>
<tr><td valign=top><em>wParam</em>
&nbsp;</td><td>
 [in] Specifies additional message-specific information.
 </td></tr>
<tr><td valign=top><em>lParam</em>
&nbsp;</td><td>
 [in] Specifies additional message-specific information.
<p>
</td></tr>
</table>
</dl><dl compact><dt>
<b>Returns: </b><dd>
 If the function succeeds, the return value is nonzero. If the
 function fails, the return value is zero. To get extended error
 information, call GetLastError.
</dl></div>
<a name="b2" doxytag="CSubclassWnd::ProcessWindowMessage">
<p><table width=100%% cellpadding=2 cellspacing=0 border=0><tr><td class="md"><b>
BOOL CSubclassWnd::ProcessWindowMessage (UINT <em>message</em>, WPARAM <em>wParam</em>, LPARAM <em>lParam</em>, LRESULT &amp; <em>lResult</em>)<code> [protected, virtual]</code>
</b></td></tr></table>
</a>
<div class="in">

<p>
Called to handle window messages.
<p>
Derived classes can override this
 method to handle any window messages sent to the subclassed window.
 Normally the programmer won't code this directly, but will instead use
 the BEGIN_MSG_DISPATCH/END_MSG_DISPATCH macros.
<p>
<dl compact><dt>
<b>Parameters: </b><dd>
<table border=0 cellspacing=2 cellpadding=0>
<tr><td valign=top><em>message</em>
&nbsp;</td><td>
 [in] Specifies the message id.
 </td></tr>
<tr><td valign=top><em>wParam</em>
&nbsp;</td><td>
 [in] Specifies additional message-specific information.
 </td></tr>
<tr><td valign=top><em>lParam</em>
&nbsp;</td><td>
 [in] Specifies additional message-specific information.
 </td></tr>
<tr><td valign=top><em>lResult</em>
&nbsp;</td><td>
 [out] A reference to the result value to be returned to
 the caller.
<p>
</td></tr>
</table>
</dl><dl compact><dt>
<b>Returns: </b><dd>
 If the message was handled, the return value is non-zero. If the
 message was not handled, the return value is zero.
</dl></div>
<a name="a2" doxytag="CSubclassWnd::SendMessage">
<p><table width=100%% cellpadding=2 cellspacing=0 border=0><tr><td class="md"><b>
LRESULT CSubclassWnd::SendMessage (UINT <em>message</em>, WPARAM <em>wParam</em> = 0, LPARAM <em>lParam</em> = 0)<code> [inline]</code>
</b></td></tr></table>
</a>
<div class="in">

<p>
Sends a message to the subclassed window.
<p>
<dl compact><dt>
<b>Parameters: </b><dd>
<table border=0 cellspacing=2 cellpadding=0>
<tr><td valign=top><em>message</em>
&nbsp;</td><td>
 [in] Specifies the message id.
 </td></tr>
<tr><td valign=top><em>wParam</em>
&nbsp;</td><td>
 [in] Specifies additional message-specific information.
 </td></tr>
<tr><td valign=top><em>lParam</em>
&nbsp;</td><td>
 [in] Specifies additional message-specific information.
<p>
</td></tr>
</table>
</dl><dl compact><dt>
<b>Returns: </b><dd>
 The return value is the result of the message processing and
 depends on the message.
</dl></div>
<a name="a4" doxytag="CSubclassWnd::SendMessageToDescendants">
<p><table width=100%% cellpadding=2 cellspacing=0 border=0><tr><td class="md"><b>
void CSubclassWnd::SendMessageToDescendants (UINT <em>message</em>, WPARAM <em>wParam</em>, LPARAM <em>lParam</em>, BOOL <em>bDeep</em> = TRUE)
</b></td></tr></table>
</a>
<div class="in">

<p>
Sends a message to all child windows of the subclassed window.
<p>
<dl compact><dt>
<b>Parameters: </b><dd>
<table border=0 cellspacing=2 cellpadding=0>
<tr><td valign=top><em>message</em>
&nbsp;</td><td>
 [in] Specifies the message id.
 </td></tr>
<tr><td valign=top><em>wParam</em>
&nbsp;</td><td>
 [in] Specifies additional message-specific information.
 </td></tr>
<tr><td valign=top><em>lParam</em>
&nbsp;</td><td>
 [in] Specifies additional message-specific information.
 </td></tr>
<tr><td valign=top><em>bDeep</em>
&nbsp;</td><td>
 [in] Specifies whether or not the message should be sent
 recursively to all children.
</td></tr>
</table>
</dl></div>
<a name="b6" doxytag="CSubclassWnd::SubclassWindow">
<p><table width=100%% cellpadding=2 cellspacing=0 border=0><tr><td class="md"><b>
BOOL CSubclassWnd::SubclassWindow (HWND <em>hWnd</em>, BOOL <em>bReflect</em> = TRUE)<code> [protected]</code>
</b></td></tr></table>
</a>
<div class="in">

<p>
Called to subclass the specified window.
<p>
If the <em>bReflect</em>
 parameter is non-zero then the parent window will be subclassed to
 support message reflection.
<p>
<dl compact><dt>
<b>Parameters: </b><dd>
<table border=0 cellspacing=2 cellpadding=0>
<tr><td valign=top><em>hWnd</em>
&nbsp;</td><td>
 [in] Specifies the handle of the window to be subclassed.
 </td></tr>
<tr><td valign=top><em>bReflect</em>
&nbsp;</td><td>
 [in] Specifies whether or not the parent should
 reflect messages back to the window.
<p>
</td></tr>
</table>
</dl><dl compact><dt>
<b>Returns: </b><dd>
 If the window was subclassed, the return value is non-zero. If the
 window was not subclassed, the return value is zero.
</dl></div>
<a name="b7" doxytag="CSubclassWnd::UnsubclassWindow">
<p><table width=100%% cellpadding=2 cellspacing=0 border=0><tr><td class="md"><b>
HWND CSubclassWnd::UnsubclassWindow ()<code> [protected]</code>
</b></td></tr></table>
</a>
<div class="in">

<p>
Called to unsubclass the specified window.
<p>
<dl compact><dt>
<b>Returns: </b><dd>
 The handle to the window previously subclassed.
</dl></div>
<hr>The documentation for this class was generated from the following files:<ul>
<li>subclasswnd.h<li>subclasswnd.cpp</ul>
<hr><address><small>Generated at Thu Jun 8 16:22:14 2000 for CSubclassWnd by
<a href="http://www.stack.nl/~dimitri/doxygen/index.html">
<img src="doxygen.gif" alt="doxygen" align=center border=0 
width=118 height=53></a> 1.1.1 written by <a href="mailto:[e-mail]">Dimitri van Heesch</a>,
 &copy; 1997-2000</small></address>
</body>
</html>