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Tip of the Day
Language: VB7
Expertise: beginner
Nov 3, 2003

GetImageFormat - Retrieve the format of the input image, according on its extension

' Return the format of the input image, according on its extension
' Example: Dim imgFormat As System.Drawing.imaging.ImageFormat = GetImageFormat
' ("D:\sample.gif")

Function GetImageFormat(ByVal imgPath As String) As _
    System.Drawing.imaging.ImageFormat
    imgPath = imgPath.ToLower()
    If imgPath.EndsWith(".bmp") Then
        Return System.Drawing.Imaging.ImageFormat.Bmp
    ElseIf imgPath.EndsWith(".emf") Then
        Return System.Drawing.Imaging.ImageFormat.Emf
    ElseIf imgPath.EndsWith(".gif") Then
        Return System.Drawing.Imaging.ImageFormat.Gif
    ElseIf imgPath.EndsWith(".ico") Then
        Return System.Drawing.Imaging.ImageFormat.Icon
    ElseIf imgPath.EndsWith(".jpg") OrElse imgPath.EndsWith(".jpeg") Then
        Return System.Drawing.Imaging.ImageFormat.Jpeg
    ElseIf imgPath.EndsWith(".png") Then
        Return System.Drawing.Imaging.ImageFormat.Png
    ElseIf imgPath.EndsWith(".tif") OrElse imgPath.EndsWith(".tiff") Then
        Return System.Drawing.Imaging.ImageFormat.Tiff
    ElseIf imgPath.EndsWith(".wmf") Then
        Return System.Drawing.Imaging.ImageFormat.Wmf
    Else
        Return System.Drawing.Imaging.ImageFormat.Gif
    End If
End Function
Marco Bellinaso
 
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