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problems writing to files

General and Gameplay Programming Programming

Started by cyberg January 28, 2000 06:39 PM

3 comments, last by cyberg 24 years, 5 months ago

cyberg

122

Author

January 28, 2000 06:39 PM

hi, i''m writing a pacman clone in dx7 and i want to take snap shot while in the game, by a function that i call when a press a key, but my function doesn''t work properly. there is how it work, i lock the surface and then i write to a file the surface row by row using WriteFile function of windows, but it happens that the function fail and i dont know why because it doesnt fail at all row of the surface. my surface is 800x600 and the bitmap isnt the size it must be. i really cant see what is the source of the problem, maybe some characters in memory that affect the WriteFile function... hope that someone can help. cyberg

cyberg- cyberg_coder@hotmail.com- http://members.xoom.com/cybergsoft

Staffan

122

January 28, 2000 06:43 PM

try approching it using either an ofstream object or stdio''s file i/o routines instead of using WriteFile.

Anonymous

January 28, 2000 08:12 PM

You could just use the printscreen key

SiCrane

11,840

January 28, 2000 09:45 PM

Are you trying to write the whole thing at once? Win32 can be extremely unhappy with large file writes. Try writing 10 scanlines at a time, and see if that works.