A user has asked the difference between the following:
ImageEnView1.IO.LoadFromFile( sFilename, True );
ImageEnView1.IO.LoadFromFileAuto( sFilename );
LoadFromFileAuto ignores the file extension and analyzes the file content to guess what format it is.
LoadFromFile (with bCheckUnknown = true) uses the file extension to load the file. If loading fails because the extension is incorrect, then it loads it by analyzing the content (i.e. same as LoadFromFileAuto).
So LoadFromFile is faster anytime an image has a valid extension (i.e. in almost every case). It is only slower when a file has an invalid extension (e.g. .BMP for a .JPEG file) as loading is attempted twice.
Nigel
Xequte Software
www.xequte.com
nigel@xequte.com
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IO.LoadFromFile vs IO.LoadFromFileAuto
Posted - Oct 30 2015 : 04:33:16
