✏ _MOUSEBUTTON and GETMOUSE

For both functions, "1" would be returned to indicate that a mouse button is pressed.

Now, both functions return "-1" (i.e. the system constant TRUE) to indicate that a mouse button is pressed.

Unchanged: a "0" (i.e. the system constant FALSE) is returned to indicate that a mouse button is NOT pressed.

In any previously created BAM programs, you will need to change things like "IF _MOUSEBUTTON = 1" to one of:

• "IF _MOUSEBUTTON = TRUE"
• "IF _MOUSEBUTTON = -1"
• "IF _MOUSEBUTTON"

_MOUSEBUTTON

The _MOUSEBUTTON function returns a -1 (i.e. the system constant TRUE) if the mouse button is currently pressed, and returns a 0 (i.e. the system constant FALSE) if the mouse button is currently not pressed.

Syntax

_MOUSEBUTTON

• Return value
  • 0 (i.e. system constant FALSE) when no mouse button is currently pressed
  • -1 (i.e. system constant TRUE) when a mouse button is currently pressed

GETMOUSE

Syntax

GETMOUSE x%, y%

GETMOUSE x%, y%, w%

GETMOUSE x%, y%, w%, b%

• x% = horizontal position
• y% = vertical position
• w% = accumulation of wheel increments and decrements since the last call to the function 
• b% = button
  • value = 0 (i.e. system constant FALSE) when no mouse button is currently pressed
  • value = -1 (i.e. system constant TRUE) when a mouse button is currently pressed