public EMF2PDF(string filename)
{
IntPtr hEmf = GDI32.GetEnhMetaFile(filename);
if ((int)hEmf != 0)
{
int sizeHeader = Marshal.SizeOf(typeof(GDI32.ENHMETAHEADER));
IntPtr emfHeader = Marshal.AllocHGlobal(sizeHeader);
GDI32.GetEnhMetaFileHeader(hEmf, (uint)sizeHeader, emfHeader);
GDI32.ENHMETAHEADER enhMetaHeader = (GDI32.ENHMETAHEADER)Marshal.PtrToStructure(emfHeader, typeof(GDI32.ENHMETAHEADER));
Marshal.FreeHGlobal(emfHeader);
//emfHeader = new IntPtr((int)emfHeader + 4);
GDI32.EnumEnhMetaFile(IntPtr.Zero, hEmf, EnhMetaFileProc, IntPtr.Zero, IntPtr.Zero);
}
}
private int EnhMetaFileProc(IntPtr hdc, IntPtr lpHTable, IntPtr lpEFMR, int nObj, IntPtr lpData)
{
GDI32.EMR emr = (GDI32.EMR)Marshal.PtrToStructure(lpEFMR, typeof(GDI32.EMR));
switch (emr.iType)
{
case GDI32.EMR_HEADER:
GDI32.ENHMETAHEADER emh = (GDI32.ENHMETAHEADER)Marshal.PtrToStructure(lpEFMR, typeof(GDI32.ENHMETAHEADER));
uint width = (uint)((float)Math.Abs(emh.rclFrame.right - emh.rclFrame.left) * (float)emh.szlDevice.cx * 10.0f / ((float)emh.szlMillimeters.cx * 1000.0f));
uint height = (uint)((float)Math.Abs(emh.rclFrame.bottom - emh.rclFrame.top) * (float)emh.szlDevice.cy * 10.0f / ((float)emh.szlMillimeters.cy * 1000.0f));
_graphicsTemplate = new GraphicsTemplate(width, height);
break;
case GDI32.EMR_ARCTO:
GDI32.EMRARCTO emrArc = (GDI32.EMRARCTO)Marshal.PtrToStructure(lpEFMR, typeof(GDI32.EMRARCTO));
_graphicsTemplate.DrawArc(new SolidPen(), (float)(emrArc.rclBox.right - emrArc.rclBox.left) / 2, (float)(emrArc.rclBox.bottom - emrArc.rclBox.top) / 2, (float)(emrArc.rclBox.right - emrArc.rclBox.left) / 2, (float)(emrArc.rclBox.bottom - emrArc.rclBox.top) / 2, 0, 270);
break;
case GDI32.EMR_EOF:
break;
}
return(1);
}