Last updated on
Apr 27, 2021
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Also applies to ColdFusion
Use the IsImage function to test whether an image variable represents a valid ColdFusion image. This function takes a variable name as its only parameter and returns a Boolean value.
Note: You cannot use the IsImage function to verify whether files are valid images. Instead, use the IsImageFile function. |
Also, ColdFusion provides two tags for determining which image file formats are supported on the server where the ColdFusion application is deployed: GetReadableImageFormats and GetWriteableImageFormats. For more information, see the CFML Reference.