Store bitmap in text file

Question

I want to store small bitmaps in a text file, similar to how Delphi does this with dfm files.

Is there a function in RTL or VCL that I could use for this?

Answer 1

I suggest you do the following:

• Save to stream in memory. Use TMemoryStream and call SaveToStream on the bitmap.
• Stream compression, possibly with a zlib block. This step is optional.
• Encode a stream using base64. For example, you can use the functions provided by Soap.EncdDecd.

And in the opposite direction, well, you just undo the steps.

Answer 2

Text BinToHex() use the BinToHex() function to format binary data.

Answer 3

You can simply use Win32.WriteFile to write the bitmap buffer to a file.