8 Jan
2003
8 Jan
'03
9:22 a.m.
[I'd be surprised if no-one else has encountered this yet, but I haven't seen it reported in the list archives.] The value which GLUT passes as the first argument to the mouse callback isn't restricted to 0, 1 and 2, corresponding to the manifest constants GLUT_{LEFT,MIDDLE,RIGHT}_BUTTON respectively. On a system with a wheel mouse, the mouse callback may also be passed the values 3 or 4; this causes the program to terminate with e.g. Fail: unmarshall_MouseButton: unknown value (3) AFAICT, this can't be trapped. -- Glynn Clements <glynn.clements@virgin.net>