windows vc 窗口 小

CWnd* pWnd;
pWnd = pWnd->FromHandle(hWnd);

 

 

 

 

 

HDC hdc;

RECT rect;

HBRUSH hBrush;//,oldBrush;//定义画刷

 

hdc =::GetDC(hwnd);//得到DC句柄

::GetClientRect(hwnd,&rect);

 

hBrush = CreateSolidBrush(COLORREF(keyColor));//创建画刷

//hBrush = CreateSolidBrush(RGB(0,0,0));//创建画刷

//oldBrush = (HBRUSH)SelectObject(hdc,hBrush);//选入红色画刷，保存老的画刷

 

FillRect(hdc,&rect,hBrush);

 

//SelectObject(hdc,oldBrush);//选入老的画刷

DeleteObject(hBrush);//删除画刷

DeleteDC(hdc);//删除DC