(I suppose you mean GrMouseGetEvent.)
Yes.
and moved mouse while this function's running. If I click mouse button program goes on. It crashes only after mouse move.
Have you checked this with gdb? Can you send a backtrace ("bt" in gdb) of the crashed program?
I had just checked this with gdb. In gdb my program do nothing when I moved the mouse.
(You know, the fact that it crashes after mouse movement doesn't necessarily mean that it crashes in GrMouseGetEvent. It could also be an error elsewhere in your program, in the code that's executed after mouse movement, or something else.)
I've added getch() after GrMouseGetEvent and when I moved mouse (not in gdb) then program crashes, getch() isn't issued and on console I receive a message:
--------------------- svgalib 1.4.3 svgalib: Failed to initialize maouse. rivafb_open START
rivafb_release END ---------------------
Frank
Jacek