使对话框透明的方法有那些?

Question

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,DWORD);    
        MYFUNC  fun  =  NULL;  
        //取得SetLayeredWindowAttributes函数指针    
        fun=(MYFUNC)GetProcAddress(hInst,  "SetLayeredWindowAttributes");  
        if(fun)fun(this->GetSafeHwnd(),0,128,0x2);    
        FreeLibrary(hInst); 
} 
我只知道上面着一种方法,现在不能满足我的程序需求,有没有另外一种方法呢?

Answer 1

CPoint point;
CRgn rgn,tmp;
CRect rc;
m_Static.GetWindowRect(&rc);
rgn.CreateRectRgn(0,0,rc.Width()-1,rc.Height()-1);for(point.x = 0 ; point.x <= rc.Width();point.x++)
{ 
  for(point.y = 0 ; point.y <= rc.Height();point.y++)
  { 
     if(rc.PtlnRect(point))
     {
        tmp.CreateRectRgn(point.x,point.y,point.x+1,point.y+1);
        rgn.CombineRgn(&rgn,&tmp,RGN_XOR);
        tmp.DeleteObject();
      }
   }
}
SetWindowRgn((HRGN)rgn,TRUE);

Answer 2

if(rc.PtlnRect(point)) 为PtInRect(point)刚打错了