Syntax
WindowFromPoint(
Point: TPoint {coordinate information}
): HWND; {returns a handle to a window}
Description
This function returns the handle of the window containing the specified point. This function does not work with hidden or disabled windows.
Parameters
Point: Specifies a TPoint structure containing the coordinates to check. These coordinates are relative to the screen.
Return Value
If this function succeeds, it returns a handle to the window containing the specified point. If it fails, or there is not a window containing the specified point, it returns zero.
红色文字说明如果是隐藏的或者disabled窗体,这个方法就无效了。
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