colormgr.h

用VC實現截取Window的消息

#include "SubclassWnd.h"

// Example useage of CSubclassWnd.
// This example simply sets the background color for a child control.

class CColorMgr : protected CSubclassWnd
{
public:
	CColorMgr(HWND hWnd, COLORREF crColor);
	virtual void OnFinalMessage();

protected:
	BEGIN_MSG_DISPATCH(CColorManager, CSubclassWnd)
		DISPATCH_MSG(OCM_CTLCOLORMSGBOX, CtlColor)
		DISPATCH_MSG(OCM_CTLCOLOREDIT, CtlColor)
		DISPATCH_MSG(OCM_CTLCOLORLISTBOX, CtlColor)
		DISPATCH_MSG(OCM_CTLCOLORBTN, CtlColor)
		DISPATCH_MSG(OCM_CTLCOLORDLG, CtlColor)
		DISPATCH_MSG(OCM_CTLCOLORSCROLLBAR, CtlColor)
		DISPATCH_MSG(OCM_CTLCOLORSTATIC, CtlColor)
	END_MSG_DISPATCH()
	HBRUSH CtlColor(HDC hdc, int type);

private:
	HBRUSH m_hbr;
};