在试用某些Ap时,发现有些Ap的窗口可以嵌入桌面,这样Win+D键的时候就可以看到,很方便。在网上搜索了一下,原理就是将窗口的父窗口设置成桌面。
这个父窗口在Xp下通过FindWindow("Program manager","progman")找到,但是在win7下这个方法找到的父窗口就不好用了。用spy++看了之后,写了下面一段代码findDesktopIconWnd(),在xp和win7下都可以找到这个父窗口。子窗口再调用SetParent(child,parent)就可以在桌面上看到了。
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static BOOL enumUserWindowsCB(HWND hwnd,LPARAM lParam)
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{
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long wflags = GetWindowLong(hwnd, GWL_STYLE);
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if(!(wflags & WS_VISIBLE)) return TRUE;
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HWND sndWnd;
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if( !(sndWnd=FindWindowEx(hwnd, NULL, L "SHELLDLL_DefView", NULL)) ) return TRUE;
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HWND targetWnd;
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if( !(targetWnd=FindWindowEx(sndWnd, NULL, L "SysListView32", L "FolderView")) ) return TRUE;
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HWND* resultHwnd = (HWND*)lParam;
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*resultHwnd = targetWnd;
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return FALSE;
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}
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HWND findDesktopIconWnd()
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{
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HWND resultHwnd = NULL;
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EnumWindows((WNDENUMPROC)enumUserWindowsCB, (LPARAM)&resultHwnd);
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return resultHwnd;
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}
转载于:https://blog.51cto.com/mypyg/263349