wm-paintclipboard.md

title	description	ms.assetid	keywords	topic_type	api_name	api_location	api_type	ms.topic	ms.date
WM_PAINTCLIPBOARD message (Winuser.h)	Sent to the clipboard owner by a clipboard viewer window when the clipboard contains data in the CF\_OWNERDISPLAY format and the clipboard viewer's client area needs repainting.	85aeefa5-e3d9-4689-a068-47b59ec7b571	WM_PAINTCLIPBOARD message Data Exchange	apiref	WM_PAINTCLIPBOARD	Winuser.h	HeaderDef	reference	05/31/2018

WM_PAINTCLIPBOARD message

Sent to the clipboard owner by a clipboard viewer window when the clipboard contains data in the CF_OWNERDISPLAY format and the clipboard viewer's client area needs repainting.

#define WM_PAINTCLIPBOARD               0x0309

Parameters

wParam

A handle to the clipboard viewer window.

lParam

A handle to a global memory object that contains a PAINTSTRUCT structure. The structure defines the part of the client area to paint.

Return value

If an application processes this message, it should return zero.

Remarks

To determine whether the entire client area or just a portion of it needs repainting, the clipboard owner must compare the dimensions of the drawing area given in the rcPaint member of PAINTSTRUCT to the dimensions given in the most recent WM_SIZECLIPBOARD message.

The clipboard owner must use the GlobalLock function to lock the memory that contains the PAINTSTRUCT structure. Before returning, the clipboard owner must unlock that memory by using the GlobalUnlock function.

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

WM_SIZECLIPBOARD

Conceptual

Clipboard