wm-ctlcolorlistbox.md

title	description	ms.assetid	keywords	topic_type	api_name	api_location	api_type	ms.topic	ms.date
WM_CTLCOLORLISTBOX message (Winuser.h)	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.	e128e77f-e966-44c4-9f0e-efcf421b6c82	WM_CTLCOLORLISTBOX message Windows Controls	apiref	WM_CTLCOLORLISTBOX	Winuser.h	HeaderDef	reference	05/31/2018

WM_CTLCOLORLISTBOX message

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.

WM_CTLCOLORLISTBOX

    WPARAM wParam;
    LPARAM lParam; 

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 INT_PTR 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.

Requirements

Requirement	Value
Minimum supported client	Windows Vista [desktop apps only]
Minimum supported server	Windows Server 2003 [desktop apps only]
Header	Winuser.h (include Windows.h)

See also

Other Resources

RealizePalette

SelectPalette

DefWindowProc