I am trying to take some .png files and put them in one file, which will also specify the position of the start and end of each file in the big file (so that I can recover them afterwards).
The idea is to do something like a zip file.
I'm not very familiar with operating binary files, so any help would be great!
This is simple way. Look at Seek and Position for more complex work
If you need to save filenames in result file, write string:
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This Article will show you how to validate number with TEdit control,
What's the TEdit control?
TEdit is a standard Windows edit control on a form, it allows to user to write, read and copy/paste single line of text.
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