The Image.Save method does not save the file as the selected file type in Visual Basic .NET or in Visual Basic 2005 (316563)

MORE INFORMATION

The GDI+ component of the .NET Framework has built-in encoders and decoders that support reading and writing the following file types:

• BMP
• GIF
• JPEG
• PNG
• TIFF

GDI+ has additional built-in decoders that support read-only functionality for the following file types:

• WMF
• EMF
• ICON

Steps to Reproduce the Problem

1. Start Microsoft Visual Studio .NET or Microsoft Visual Studio 2005.
2. Create a new Windows application in Visual Basic .NET or in Visual Basic 2005.
3. Add a button control to the default form.
4. Set the button properties as follows:

   Name: Button1
   Text: Save

5. On the View menu, click Code to view the form's class module.
6. Add the following statement to the top of the Code window, above the form's class definition:

   Imports System.Drawing.Imaging
   					

7. On the View menu, click Designer to view the form designer.
8. Double-click the button control to insert the Click event handler for the button control.
9. Replace the Click event procedure with the following code:
   

   Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
   
   
      'Replace the path below to the path of an image on
      'your computer.
      Dim strSourceFile As String = "C:\Windows\greenstone.bmp"
   
      'Replace the path below to the path of a WMF file to create
      Dim strDestFile As String = "C:\Windows\greenstone.wmf"
   
      Try
   
          'Load the image using the FromFile method and store it in
          'the imgOriginal variable.
          Dim imgOriginal As Image = Image.FromFile(strSourceFile)
          MessageBox.Show(ControlChars.Quote & strSourceFile & _
             ControlChars.Quote & " loaded successfully.")
   
          'Save the original image out as a Windows MetaFile Format file.
          imgOriginal.Save(strDestFile, ImageFormat.Wmf)
          MessageBox.Show(ControlChars.Quote & strDestFile & _
             ControlChars.Quote & " was saved successfully.")
   
   
          'Load the new image using the FromFile method and attempt
          'to store it in a variable declared as MetaFile.
          Dim wmfNew As Metafile = Image.FromFile(strDestFile) '<--Code fails here
          MessageBox.Show(ControlChars.Quote & strDestFile & _
             ControlChars.Quote & " loaded successfully.")
   
   
      Catch excFileNotFound As System.IO.FileNotFoundException
          MessageBox.Show(ControlChars.Quote & strSourceFile & _
             ControlChars.Quote & " is not a valid path. " & _
             "Please correct the code to use a valid path.")
      End Try
   
   End Sub
   					

   
   
10. Replace the path of the strSourceFile variable with the path to an image file on your computer.
11. Replace the path of the strDestFile variable with the name of a WMF file to create on your computer.
12. Press F5 to compile and run the application.
13. Click the button.
    
    You receive a message that indicates that the original image file was loaded successfully.
14. Click OK to close the message dialog box.
    
    You receive a second message that indicates that the new image file was saved successfully.
15. Click OK.

Note that the code halts with the following exception: