如何建立透明窗口

建立一个透明窗口， brush = new CBrush(RGB(0,151,250)); SetWindowLong(this->GetSafeHwnd(),GWL_EXSTYLE, GetWindowLong(this->GetSafeHwnd(),GWL_EXSTYLE)^0X80000); HINSTANCE hInst=LoadLibrary("User32.DLL"); if(hInst) { typedef BOOL (WINAPI *MYFUNC)(HWND,COLORREF,BYTE,WORD); MYFUNC fun=NULL; fun=(MYFUNC)GetProcAddress(hInst,"SetLayeredWindowAttributes"); if(fun)fun(this->GetSafeHwnd(),0,128,2);//128是透明度 if(fun)fun(this->GetSafeHwnd(),RGB(0,151,250),0,1);//去除指定颜色 FreeLibrary(hInst); }