If index_ has a valid keyval, this function will return TRUE and fill in keyval and modifiers with the keyval settings. Since 2.20
the index of the macro button to get.
return value for the keyval. out
return value for modifiers. out
TRUE if keyval is set for index.
See Implementation
If index_ has a valid keyval, this function will return TRUE and fill in keyval and modifiers with the keyval settings. Since 2.20