Sent by the rebar control to notify its parent window about drawing operations. This notification is sent in the form of a WM_NOTIFY message.

Syntax

NM_CUSTOMDRAW

    lpNMCustomDraw = (LPNMCUSTOMDRAW) lParam;

Parameters

lpNMCustomDraw

Pointer to an NMCUSTOMDRAW structure that contains information about the drawing operation. The dwItemSpec member of this structure contains the identifier of the band being drawn. The lItemlParam member of this structure contains the lParam of the band being drawn.

Return Value

The value your application can return depends on the current drawing stage. The dwDrawStage member of the associated NMCUSTOMDRAW structure holds a value that specifies the drawing stage. You must return one of the following values.

CDRF_DODEFAULT	The control will draw itself. It will not send any additional NM_CUSTOMDRAW messages for this paint cycle. This occurs when dwDrawStage equals CDDS_PREPAINT.
CDRF_NOTIFYITEMDRAW	The control will notify the parent of any item-related drawing operations. It will send NM_CUSTOMDRAW notification messages before and after drawing items. This occurs when dwDrawStage equals CDDS_PREPAINT.
CDRF_NOTIFYPOSTERASE	The control will notify the parent after erasing an item. This occurs when dwDrawStage equals CDDS_PREPAINT.
CDRF_NOTIFYPOSTPAINT	The control will notify the parent after painting an item. This occurs when dwDrawStage equals CDDS_PREPAINT.
CDRF_NOTIFYSUBITEMDRAW	The control will notify the parent of any item-related drawing operations. It will send NM_CUSTOMDRAW notification messages before and after drawing items. This occurs when dwDrawStage equals CDDS_PREPAINT.
CDRF_NEWFONT	The application specified a new font for the item; the control will use the new font. For more information about changing fonts, see Changing fonts and colors. This occurs when dwDrawStage equals CDDS_ITEMPREPAINT.
CDRF_SKIPDEFAULT	The application drew the item manually. The control will not draw the item. This occurs when dwDrawStage equals CDDS_ITEMPREPAINT.

Notification Requirements

Minimum DLL Version	comctl32.dll version 4.70 or later
Header	commctrl.h
Minimum operating systems	Windows 2000, Windows NT 4.0 with Internet Explorer 3.0, Windows 98, Windows 95 with Internet Explorer 4.0

See Also

Using Custom Draw