uTools-Manuals/src/docs/win32api/1/GetTopWindow.html
2020-06-06 20:39:00 +08:00

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<h3>函数功能</h3>该函数检查与特定父窗口相联的子窗口z序并返回在z序顶部的子窗口的句柄。<br>
<h3>函数原型</h3>HWND GetTopWindowHWND hWnd<br>
<h3>参数</h3>
hWnd:被查序的父窗口的句柄。如果该参数为NULL函数返回Z序顶部的窗口句柄。<br>
返回值如果函数成功返回值为在Z序顶部的子窗口句柄。如果指定的窗口无子窗口返回值为NULL。<br>
若想获得更多错误信息请调用GetLastError函数。<br>
<h3>速查</h3>Windows NT3.1以上版本Windows95以上版本Windows CE不支持头文件Winuser.h库文件user32.lib。<br>
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