WindowFromPhysicalPoint function (winuser.h)

Retrieves a handle to the window that contains the specified physical point.

Syntax

HWND WindowFromPhysicalPoint(
  [in] POINT Point
);

[in] Point

Type: POINT

The physical coordinates of the point.

Type: HWND

A handle to the window that contains the given physical point. If no window exists at the point, this value is NULL.

The WindowFromPhysicalPoint function does not retrieve a handle to a hidden or disabled window, even if the point is within the window.

Requirement	Value
Minimum supported client	Windows Vista [desktop apps only]
Minimum supported server	Windows Server 2008 [desktop apps only]
Target Platform	Windows
Header	winuser.h (include Windows.h)
Library	User32.lib
DLL	User32.dll
API set	ext-ms-win-ntuser-window-l1-1-1 (introduced in Windows 8.1)