BUG: Superclassed Scroll Bar's Parent Not Sent WM_CTLCOLOR Msg

ID: Q95391

The information in this article applies to:

Microsoft Windows Software Development Kit (SDK) versions 3.0, 3.1

SYMPTOMS

Controls normally send WM_CTLCOLOR messages to their parents so applications can modify the control background color. However, under Windows 3.0 and 3.1, when a scroll bar is superclassed, its parent is not sent WM_CTLCOLOR messages.

RESOLUTION

Applications that want to receive the WM_CTLCOLOR message must subclass the scroll bar rather than superclassing its window class.

STATUS

Microsoft has confirmed this to be a bug in Windows versions 3.0 and 3.1.

Additional query words: scrollbar

Keywords : kb16bitonly kbCtrl kbScrollBar kbGrpUser kbWinOS310 kbWinOS300
Version : WINDOWS:3.0,3.1
Platform : WINDOWS
Issue type : kbbug