MouseMask

Mousemask bits are given in hexadecimal, they are used to determine what events are captured and passed onto the onmouse function. It is possible to pass in multiple events by combining the hex values, for example, if we want to check for both left and right button up we can set the onmousemask as 0x00000202.

Event type	onmousemask bit value	onmousemask decimal value
left button down	0x00000001	1
left button up	0x00000002	2
left button double click	0x00000004	4
middle button down	0x00000010	16
middle button up	0x00000020	32
middle button dbl click	0x00000040	64
right button down	0x00000100	256
right button up	0x00000200	512
right button dbl click	0x00000400	1024
motion	0x00001000	4096

Additionally for onmouse event a parameter called keys is parsed, the values this can have are given below:

Key Type	Bit Value
shift down	0x00010000
ctrl down	0x00020000
alt down	0x00040000
meta down	0x00080000