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How can I generate a thumbnail image of my Diagram?

Platform: WinForms |
Control: Diagram |
Published Date: April 30, 2011 |
Last Revised Date: July 10, 2014


If you want to display a thumbnail image of the Diagram:

a) Generate a Bitmap image as demonstrated in this KnowledgeBase Article.

b) Use the GetThumbnailImage method of the image class to generate a thumbnail and set it to be the image of the picture box in which you want to display the thumbnail as show below:

[C#] public bool ThumbnailCallback() {  return false; }

//Generate Thumbnail and set it to be image of the PictureBox

Image.GetThumbnailImageAbort myCallback = new Image.GetThumbnailImageAbort(ThumbnailCallback);  this.pictureBox1.Image = (Bitmap) diagramimage.GetThumbnailImage(150,75,myCallback, IntPtr.Zero); GetThumbnailImage Method

[VB.NET] Public Function ThumbnailCallback() As Boolean  Return False End Function   'Generate Thumbnail and set it to be image of the PictureBox   Dim myCallback As Image.GetThumbnailImageAbort =  New Image.GetThumbnailImageAbort(ThumbnailCallback) Me.pictureBox1.Image = CType(diagramimage.GetThumbnailImage(150,75,myCallback, IntPtr.Zero), Bitmap)

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