GetCapture function (winuser.h)

Retrieves a handle to the window (if any) that has captured the mouse. Only one window at a time can capture the mouse; this window receives mouse input whether or not the cursor is within its borders.

Syntax

HWND GetCapture();

Return value

Type: HWND

The return value is a handle to the capture window associated with the current thread. If no window in the thread has captured the mouse, the return value is NULL.

Remarks

A NULL return value means the current thread has not captured the mouse. However, it is possible that another thread or process has captured the mouse.

To get a handle to the capture window on another thread, use the GetGUIThreadInfo function.

Requirements

See also

Conceptual

GetGUIThreadInfo

Mouse Input

Reference

ReleaseCapture

SetCapture