protected internal Backbuffer(VisibleSurface visSurface)
{
// make the dimensions equal to the VisibleSurface dimensions
range = new Rectangle(0, 0, visSurface.Width, visSurface.Height);
// create a new temp GDI+ Bitmap to get old GDI32 bitmap handle
Bitmap memBmp = new Bitmap(range.Width, range.Height, visSurface.DC);
// obtain handle to VisibleSurface Graphics object for Backbuffer instantiation
IntPtr visDC = visSurface.DC.GetHdc();
// create a DC compatible with the visible surface DC
IntPtr compatDC = pInvoke.CreateCompatibleDC(visDC);
// associate the new bitmap handle with the Backbuffer DC
pInvoke.SelectObject(compatDC, memBmp.GetHbitmap());
//create a GDI+ Graphics object for the Backbuffer
dc = Graphics.FromHdc(compatDC);
// release handle to VisibleSurface Graphics object
visSurface.DC.ReleaseHdc(visDC);
// Dispose of temp GDI+ Bitmap
memBmp.Dispose();
// set default FogPen value to black with 128 alpha blending
fogBrush = new SolidBrush(Color.FromArgb(128, Color.Black));
// set default GridPen value to white
gridPen = new Pen(Color.White);
//showGrid = false;
matrixDisposeDel = new GridPointMatrixesDisposingEventHandler(source_Disposing);
}
protected internal Backbuffer(VisibleSurface visSurface)
{
// make the dimensions equal to the VisibleSurface dimensions
range = new Rectangle(0, 0, visSurface.Width, visSurface.Height);
// create a new temp GDI+ Bitmap to get old GDI32 bitmap handle
Bitmap memBmp = new Bitmap(range.Width, range.Height, visSurface.DC);
// obtain handle to VisibleSurface Graphics object for Backbuffer instantiation
IntPtr visDC = visSurface.DC.GetHdc();
// create a DC compatible with the visible surface DC
IntPtr compatDC = pInvoke.CreateCompatibleDC(visDC);
// associate the new bitmap handle with the Backbuffer DC
pInvoke.SelectObject(compatDC, memBmp.GetHbitmap());
//create a GDI+ Graphics object for the Backbuffer
dc = Graphics.FromHdc(compatDC);
// release handle to VisibleSurface Graphics object
visSurface.DC.ReleaseHdc(visDC);
// Dispose of temp GDI+ Bitmap
memBmp.Dispose();
// set default FogPen value to black with 128 alpha blending
fogBrush = new SolidBrush(Color.FromArgb(128, Color.Black));
// set default GridPen value to white
gridPen = new Pen(Color.White);
//showGrid = false;
matrixDisposeDel = new GridPointMatrixesDisposingEventHandler(source_Disposing);
}
