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From: AliR (VC++ MVP) on 12 Aug 2008 17:14
I think I got it: (thank you Peter for your help)

public void Draw(Graphics graphics, RectangleF layoutArea, float
xFactor)
{
//Calculate the area to render.
SafeNativeMethods.RECT rectLayoutArea;
rectLayoutArea.Top = (int)(0 * anInch);
rectLayoutArea.Bottom = (int)(layoutArea.Bottom * anInch);
rectLayoutArea.Left = (int)(0 * anInch);
rectLayoutArea.Right = (int)(layoutArea.Right * anInch);


Bitmap Bmp = new Bitmap((int)layoutArea.Width,
(int)layoutArea.Height, PixelFormat.Format32bppArgb);
Graphics g = Graphics.FromImage(Bmp);
IntPtr hdc = g.GetHdc();

//create a metafile, convert the size to himetrics
Metafile metafile = new Metafile(hdc, new
RectangleF(0,0,layoutArea.Width*26,layoutArea.Height*26));

g.ReleaseHdc(hdc);
g.Dispose();

g = Graphics.FromImage(metafile);
IntPtr hDCEMF = g.GetHdc();

SafeNativeMethods.FORMATRANGE fmtRange;
fmtRange.chrg.cpMax = -1; //Indicate character from
to character to
fmtRange.chrg.cpMin = 0;
fmtRange.hdc = hDCEMF; //Use the same DC for
measuring and rendering
fmtRange.hdcTarget = hDCEMF; //Point at printer hDC
fmtRange.rc = rectLayoutArea; //Indicate the area on page
to print
fmtRange.rcPage = rectLayoutArea; //Indicate size of page

IntPtr wParam = IntPtr.Zero;
wParam = new IntPtr(1);

//Get the pointer to the FORMATRANGE structure in memory
IntPtr lParam = IntPtr.Zero;
lParam = Marshal.AllocCoTaskMem(Marshal.SizeOf(fmtRange));
Marshal.StructureToPtr(fmtRange, lParam, false);

SafeNativeMethods.SendMessage(this.Handle,
SafeNativeMethods.EM_FORMATRANGE, wParam, lParam);

//Free the block of memory allocated
Marshal.FreeCoTaskMem(lParam);

//Release the device context handle obtained by a previous call
g.ReleaseHdc(hDCEMF);
g.Dispose();

graphics.ScaleTransform(xFactor, xFactor);
graphics.DrawImage(metafile, layoutArea.Location);
}

AliR.



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