writing random data into image

[av2306]

Hi,

How to write random data (like 1, 2, a, b..etc) in image file programmatically? It should be able to open in viewer after editing.

Thanks,
av.

[stampede]

Check the QImage class documentation, it has some methods to access the pixel data (setPixel(), scanLine(), etc ...).

// edit: previous comments removed, i think i misunderstood the question :) probably you mean random access, not random values

[anda_skoa]

If you mean that you want to see those characters in the image, e.g. have they "1" symbol visible in an image viewer, then look at QPainter, specifically QPainter::drawText()

Cheers,
_

[aamer4yu]

Are you talking about steganography ?

[stampede]

(...) data (like 1, 2, a, b, ...)
OMG I thought about hex values :p