C++: copying bmp using loop of fread and fwrite, casues output bmp is filled with color of the fisrt one in input bmp

Question

I dunno why, but first pixel (left bottom) is loaded correctly, but the others won't load and the first color is used for whole picture...

I have this in cycle

fread(&pix,sizeof(pix),1,pictureIn);
fwrite(&pix,sizeof(pix),1,pictureOut);

edit:

pix is struct of three unsigned chars (rgb), loading file and info header seems to be ok

You haven't given enough information. What is pix? How do you know the size? — dmazzoni, Dec 10 '09 at 21:30
Do you actually check the return values so you can tell if something went wrong? — Anon., Dec 10 '09 at 21:31
And presumably you opened a file? How did you do it? Did you, for example, open it in binary mode? And is this in a loop? You get the idea - we are not mind readers. — , Dec 10 '09 at 21:33

score 1 · Accepted Answer · answered Dec 10 '09 at 21:33

1

What OS are you using? I recently had problem with reading binary files under Win32. It turned out that I forgot to pass "b" flag to fopen:

pictureIn = fopen ("in.bmp", "rb");
pictureOut = fopen ("out.bmp", "wb");

answered Dec 10 '09 at 21:33

1 Answers1