The WM_CTLCOLORSTATIC message is sent to the parent window of a static 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 static control.
WM_CTLCOLORSTATIC hdcStatic = (HDC) wParam; // handle of display context hwndStatic = (HWND) lParam; // handle of static control
If an application processes this message, the return value is the handle of a brush that Windows uses to paint the background of the static control.
The DefWindowProc function selects the default system colors for the static control.
The WM_CTLCOLORSTATIC message is never sent between threads; it is sent only within the same thread.
DefWindowProc, RealizePalette, SelectPalette, WM_CTLCOLORBTN, WM_CTLCOLORDLG, WM_CTLCOLOREDIT, WM_CTLCOLORLISTBOX, WM_CTLCOLORMSGBOX, WM_CTLCOLORSCROLLBAR
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