[Akz]

Comparing pEdict->v.button and pEdict->v.oldbutton could be used to detect when the attack button was pressed, but it doesn't quarantee that the weapon was fired. Checking the weapon animation should be ok for that purpose though. The variable you're looking for is pEdict->v.weaponanim.

In DMC, the value should be either 0 (idle) or 1 (shooting), because AFAIK there are only 2 animations for each weapon.