private IntPtr RenderWindowsMetafilePict(TYMED tymed)
{
ComDebug.ReportInfo("GraphDocumentDataObject.RenderWindowsMetafilePict");
if (!(tymed == TYMED.TYMED_MFPICT))
{
throw new ArgumentException(nameof(tymed) + " is not TYMED_MFPICT");
}
if (null != _graphDocumentBitmapImage)
{
using (var rgbBitmap = GraphDocumentExportActions.ConvertBitmapToPixelFormat(_graphDocumentBitmapImage, System.Drawing.Imaging.PixelFormat.Format24bppRgb, _graphExportOptions.BackgroundColorForFormatsWithoutAlphaChannel))
{
var scaledDocSize = _graphDocumentSize * _graphExportOptions.OutputScalingFactor;
using (var enhancedMetafile = GraphDocumentExportActions.RenderAsEnhancedMetafileBitmapFormat(rgbBitmap, scaledDocSize))
{
var hEmf = enhancedMetafile.GetHenhmetafile();
return(DataObjectHelper.ConvertEnhancedMetafileToWindowsMetafilePict(hEmf, scaledDocSize.X, scaledDocSize.Y));
}
}
}
else
{
throw new InvalidProgramException("Please report this exception to the author of the program and describe the steps to reproduce the exception");
}
}
/// <summary>
/// Renders the provided graph document to an windows metafile picture (TYMED_MFPICT). Please not that this format does not support transparancy, thus the back color provided in the rendering options is used as ground brush first.
/// </summary>
/// <param name="tymed">The tymed to check.</param>
/// <param name="document">The graph document.</param>
/// <returns>Pointer to windows metafile picture (TYMED_MFPICT).</returns>
public static IntPtr RenderWindowsMetafilePict_TYMED_MFPICT(TYMED tymed, GraphDocumentBase document)
{
if (!(tymed == TYMED.TYMED_MFPICT))
{
throw new ArgumentException(nameof(tymed) + " is not TYMED_MFPICT");
}
var renderingOptions = GetRenderingOptions(document);
using (var rgbBitmap = Altaxo.Graph.GraphDocumentBaseExportActions.RenderAsBitmap(document, renderingOptions, System.Drawing.Imaging.PixelFormat.Format24bppRgb))
{
var scaledDocSize = document.Size * renderingOptions.OutputScalingFactor;
using (var enhancedMetafile = GraphDocumentExportActions.RenderAsEnhancedMetafileBitmapFormat(rgbBitmap, scaledDocSize))
{
var hEmf = enhancedMetafile.GetHenhmetafile();
return(DataObjectHelper.ConvertEnhancedMetafileToWindowsMetafilePict(hEmf, scaledDocSize.X, scaledDocSize.Y));
}
}
}
