The WM_CTLCOLOREDIT message is sent to the parent window of an edit control when the control is about to be drawn. By responding to this message, the parent window can use the given device context handle to set the text and background colors of the edit control.
WM_CTLCOLOREDIT
hdcEdit = (HDC) wParam; // handle of display context
hwndEdit = (HWND) lParam; // handle of static control
Parameters
hdcEdit
Value of wParam. Identifies the device context for the edit control window.
hwndEdit
Value of lParam. Identifies the edit control.
Return Values
If an application processes this message, it must return the handle of a brush. Windows uses the brush to paint the background of the edit control.
Default Action
The DefWindowProc function selects the default system colors for the edit control.
Remarks
The WM_CTLCOLOREDIT message is never sent between threads, it is only sent within the same thread.
See Also
DefWindowProc, RealizePalette, SelectPalette, WM_CTLCOLORBTN, WM_CTLCOLORDLG, WM_CTLCOLORLISTBOX, WM_CTLCOLORMSGBOX, WM_CTLCOLORSCROLLBAR, WM_CTLCOLORSTATIC