GUI_IMAGE_SWITCH(WIN,X,Y,IOFF,ION,GROUP,ON,ACT,HELP$,[BORDER])
 
IOFF = Pointer to Off Image
ION = Pointer to On Image
ON = 0/1 button default Off/On
GROUP = if greater than 0 then this button belongs in that group
 
Adds an On/Off clickable Image button. IOFF/ION specify the images.
 
See Also:
 
GUI_GADVAL - returns 0 (button Off) or 1 (button On)
GUI_SETVAL - set the button Off (0) / On (1)
GUI_GROUP_RET - returns NULL or gadget that is On in GROUP