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<h3 align="center"><font COLOR="#AOAO99"></font></h3>
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<tr><td><p align="center"><font color="#FF0000">如何访问桌面窗口</font></td></tr>
<tr><td><p>
</Br>
静态函数CWnd:: GetDesktopWindow 返回桌面窗口的指针。下例说明了MFC函数CFrameWnd::BeginModalStae是如何使用该函数进入内部窗口列表的。<Br>
</Br>
void CFrameWnd::BeginModalState ()<Br>
{<Br>
…<Br>
//first count all windows that need to be disabled<Br>
UINT nCount=0<Br>
HWND hWnd= :: GetWindow (:: GetDesktopWindow(), GW_CHILD)<Br>
while (hWnd!=NULL)<Br>
{<Br>
if (:: IsWindowEnabled (hwnd)<Br>
&& CWnd::FromHandlePermanent (hWnd)!=NULL<Br>
&& AfxIsDescendant (pParent->m_hWnd, hWnd)<Br>
&& :: SendMessage (hWnd, WM_DISABLEMODAL, 0, 0)==0)<Br>
{<Br>
++nCount<Br>
}<Br>
hWnd=:: GetWindow (hWnd, GW_HWNDNEXT)<Br>
}<Br>
…<Br>
</Br>
</Br>
</Br>
</p></td></tr>
</table>
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