QImageReader concerns
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I have a question regarding the QImageReader class.
I want to get the filename of the images. Let's say the extensions can be anything, not just PNG, JPG, etc... .
Let's say there are 1000 files in the directory and the size of half of them is over 500 MB.
I use QImageReader::canRead() function to determine if file is an image or not. How does the QImageReader::canRead() function determine if the file is an image? I don't want to have it load the whole file, then determine if it can recognise it.
Is it safe to use QImageReader this way?
Are there any better alternatives? -
Hi,
AFAIK, the canRead function and what's under don't load the file content, it peeks and seeks through to get the information needed but that should be all.
