public List <IFileItem> AppendSlides(List <PPT.Slide> srcSlides)
{
PPT.Application ppt = null;
PPT.Presentations pres = null;
PPT.Presentation pptPresentation = null;
try
{
ppt = new PPT.Application();
pres = ppt.Presentations;
pptPresentation = pres.Open(FullPath, MsoTriState.msoFalse, MsoTriState.msoFalse, MsoTriState.msoTrue);
PPT.DocumentWindow wnd = pptPresentation.Windows[1];
//wnd.Height = 200;
//wnd.Top = -200;
wnd.WindowState = PPT.PpWindowState.ppWindowMinimized;
wnd = null;
#region Alt. slower approach by copy ppt and insert slides from file
//Copy
//string tempFile = @"c:\WRK\Temp.pptx";
//ppt.ActivePresentation.SaveCopyAs(tempFile, PPT.PpSaveAsFileType.ppSaveAsDefault, Microsoft.Office.Core.MsoTriState.msoTrue);
//PPT.Presentation tempPPT = ppt.Presentations.Open(tempFile,MsoTriState.msoFalse,MsoTriState.msoFalse, MsoTriState.msoFalse);
//List<string> slideNames = slides.Select(slide => slide.Name).ToList();
//var v = from PPT.Slide sl in tempPPT.Slides where !slideNames.Contains(sl.Name) select sl;
//foreach(PPT.Slide s in v)
//{
// s.Delete();
//}
//tempPPT.Save();
//tempPPT.Close();
//gallery.Slides.InsertFromFile(tempFile, gallery.Slides.Count);
#endregion
PPT.Slides gSlides = pptPresentation.Slides;
int startIndex = gSlides.Count + 1;
foreach (PPT.Slide slide in srcSlides)
{
slide.Copy();
gSlides.Paste();
}
List <IFileItem> newItems = new List <IFileItem>();
newItems = fileIndex.UpdateIndex(pptPresentation, startIndex);
return(newItems);
}
finally
{
if (pptPresentation != null)
{
pptPresentation.Save();
pptPresentation.Close();
}
pptPresentation.ReleaseCOM();
pptPresentation = null;
pres.ReleaseCOM();
pres = null;
ppt.ReleaseCOM();
ppt = null;
}
}