BUTTON%

Syntax: BUTTON% (flag)
Location: KMOUSE, MOUSE (DIY Toolkit - Vol I), Amiga QDOS v3.20+

This function can be used to find out if any mouse buttons have been pressed and if so which ones.  Unfortunately, you cannot use this to find out if a button has been pressed twice quickly in succession (known as double-clicking).

The value of flag is used to tell the function which buttons you wish to interrogate:

flag Meaning
0    Has any key been pressed ?  If so, the value returned will be 0
     plus the following numbers if the relevant key(s) has been pressed:
     +1 Button One Pressed
     +2 Button Two Pressed
     +4 Button Three Pressed

1    Has Button One been pressed (this is the left hand mouse button)?
     If so 1 is returned, otherwise 0.

2    Has Button Two been pressed (this is the right hand mouse button)?
     If so, 1 is returned, otherwise 0.

3    Has Button Three been pressed (this is the middle mouse button)?
     If so, 1 is returned, otherwise 0.

CROSS-REFERENCE:
X_PTR%, Y_PTR% and PTR_FN% can also be used to interrogate the mouse.
