wm-capturechanged.md

title	description	ms.assetid	keywords	topic_type	api_name	api_location	api_type	ms.topic	ms.date
WM_CAPTURECHANGED message (Winuser.h)	Sent to the window that is losing the mouse capture.	79c8f65e-31fa-4bdb-9e88-0160a52b5b7d	WM_CAPTURECHANGED message Keyboard and Mouse Input	apiref	WM_CAPTURECHANGED	Winuser.h	HeaderDef	reference	05/31/2018

WM_CAPTURECHANGED message

Sent to the window that is losing the mouse capture.

A window receives this message through its WindowProc function.

#define WM_CAPTURECHANGED               0x0215

Parameters

wParam

This parameter is not used.

lParam

A handle to the window gaining the mouse capture.

Return value

An application should return zero if it processes this message.

Remarks

A window receives this message even if it calls ReleaseCapture itself. An application should not attempt to set the mouse capture in response to this message.

When it receives this message, a window should redraw itself, if necessary, to reflect the new mouse-capture state.

Requirements

Requirement	Value
Minimum supported client	Windows 2000 Professional [desktop apps only]
Minimum supported server	Windows 2000 Server [desktop apps only]
Header	Winuser.h (include Windows.h)

See also

Reference

ReleaseCapture

SetCapture

Conceptual

Mouse Input