Повернуть Image

//-------------------------------------------------------------------
void __fastcall TForm1::ImageSpinClick(TObject *Sender)
{
Graphics::TBitmap *bmpOriginal = new Graphics::TBitmap();
 
    //если нужно - проверка существования файла "Spin_drawing.bmp"
    bmpOriginal->LoadFromFile("Spin_drawing.bmp");
 
/**/ImageSpin->Picture->Assign(bmpOriginal);
 
Graphics::TBitmap *bmpCopy = new Graphics::TBitmap();
 
    bmpCopy->Width  = bmpOriginal->Height;
    bmpCopy->Height = bmpOriginal->Width;
 
    int wOr = bmpOriginal->Width, hOr = bmpOriginal->Height;
    for(int x = 0; x < wOr; x++)
    {
      for(int y = 0; y < hOr; y++)
      { //-------------------вариант с разделением-------------------------------
        bmpCopy->Canvas->Pixels[(hOr - y)/2][wOr - x - 1] = bmpOriginal->Canvas->Pixels[x][y];
        bmpCopy->Canvas->Pixels[(hOr + y)/2][x          ] = bmpOriginal->Canvas->Pixels[x][y];
        //------------------вариант 90 градусов по часовой----------------------
        ////bmpCopy->Canvas->Pixels[hOr - y][x] = bmpOriginal->Canvas->Pixels[x][y];
        //----------------------------------------------------------------------
      }
    }
    
    //DeleteFileA("Point_drawing.bmp");
    bmpCopy->SaveToFile("Spin_drawing.bmp");
 
/**/Image2->Picture->Assign(bmpCopy);
 
    delete bmpOriginal, bmpCopy;
}
//---------------------------------------------------------------------------

void RotateDC(HANDLE dc,float angle)
{
XFORM xform;
 
angle = angle * 3.1416 / 180.0;
 
xform.eDx = 0.0f;
xform.eDy = 0.0f;
xform.eM11 = cos(angle);
xform.eM12 = sin(angle);
xform.eM21 = -sin(angle);
xform.eM22 = cos(angle);
 
SetGraphicsMode(dc, GM_ADVANCED);
SetWorldTransform(dc, &xform);
}