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 WM_CTLCOLORLISTBOX

The WM_CTLCOLORLISTBOX message is sent to the parent window of a list box before the system draws the list box. By responding to this message, the parent window can set the text and background colors of the list box by using the specified display device context handle.

A window receives this message through its WindowProc function.

Parameters

• wParam
Handle to the device context for the list box.
• lParam
Handle to the list box.

Return Value

If an application processes this message, it must return a handle to a brush. The system uses the brush to paint the background of the list box.

Remarks

By default, the DefWindowProc function selects the default system colors for the list box.

The WM_CTLCOLORLISTBOX message is never sent between threads. It is sent only within one thread.

If a dialog box procedure handles this message, it should cast the desired return value to a BOOL and return the value directly. If the dialog box procedure returns FALSE, then default message handling is performed. The DWL_MSGRESULT value set by the SetWindowLong function is ignored.

Notification Requirements

• Minimum DLL Version None
• Header Declared in Winuser.h, include Windows.h
• Minimum operating systems Windows 95, Windows NT 3.1

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Notebook exported on Monday, 7 July 2008, 18:56:50 PM Eastern Daylight Time