windows_programming_notes.nbk: Home | Index | Next Page: WM_CTLCOLORLISTBOX | Previous Page: WM_CTLCOLORDLG

 WM_CTLCOLOREDIT

An edit control that is not read-only or disabled sends the WM_CTLCOLOREDIT message to its parent window when the control is about to be drawn. By responding to this message, the parent window can use the specified device context handle to set the text and background colors of the edit control.

Parameters

• wParam
A handle to the device context for the edit control window.
• lParam
A handle to the edit control.

Return Value

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

Remarks

By default, the DefWindowProc function selects the default system colors for the edit control.

Read-only or disabled edit controls do not send the WM_CTLCOLOREDIT message; instead, they send the WM_CTLCOLORSTATIC message.

The WM_CTLCOLOREDIT message is never sent between threads, it is only sent within the same 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.

Rich Edit: This message is not supported. To set the background color for a rich edit control, use the EM_SETBKGNDCOLOR message.

Notification Requirements

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

windows_programming_notes.nbk: Home | Index | Next Page: WM_CTLCOLORLISTBOX | Previous Page: WM_CTLCOLORDLG

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