WM PAINTCLIPBOARD

This message is sent when the clipboard contains a data handle with the CFI_OWNERDISPLAY information flag set.

Syntax

param1
    HWND    hwndViewer;  /* Handle. */

param2
    ULONG   ulReserved;  /* Reserved value, should be 0. */

Parameters

hwndViewer (HWND) - Input

Handle to the clipboard application window.

ulReserved (ULONG) - Input

Reserved value, should be 0.

Returns

ulReserved (ULONG) - returns

Reserved value, should be 0.

Remarks

As the clipboard owner is responsible for displaying the clipboard contents, this message notifies the clipboard application that its client area needs repainting. The WM_PAINTCLIPBOARD message is sent to the owner of the clipboard to request repainting of all or part of the client area of the clipboard application.

Note

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

Default Processing

None.