예제를 보냅니다.

/**********************************************************************/
     HDC dc;
     RECT r;
     GetWindowRect(GetForegroundWindow(),&r);
     dc = GetWindowDC(GetForegroundWindow());
     Graphics::TCanvas *MyCanvas = new Graphics::TCanvas;
     MyCanvas->Handle = dc;
     Image1->Width = r.right - r.left;
     Image1->Height = r.bottom - r.top;
     Image1->Picture->Bitmap->Width = r.right - r.left;
     Image1->Picture->Bitmap->Height = r.bottom - r.top;
     Image1->Picture->Bitmap->Canvas->CopyRect(
                          Rect(0,0,Image1->Width,Image1->Height),MyCanvas,
                          Rect(0,0,Image1->Width,Image1->Height));
     delete MyCanvas;
     ReleaseDC(NULL,dc);
/***********************************************************************/

주위: 이 예제대로 하면 현재 활성화되어있는 창이 화면에 나옵니다.
        응용하여 사용하십시오.