Picture Groups

The picture database can contain picture groups.

A picture group is a collection of pictures. Each picture in a picture group represents one state. When a picture group is displayed as the picture shape of an object, the picture that corresponds to the current object state is shown. This is the main benefit of using a picture group as the object shape because it can show each object state with a different picture.

When a picture group is used as the shape for buttons or switches, you may want it to look differently when it is pressed. In order to support the pressed look, a picture group needs two pictures for each state: one picture for the normal (released) look, and another picture is for the pressed look.
For example, a 3-state multi-state switch needs a picture group that contains 6 pictures as its picture shape if the pressed look is required.

The following is an example of a picture group supporting 3 states and the pressed look.

Picture Group	State	Pictures
	0 (Normal/Released)
	0 (Pressed)
	1 (Normal/Released)
	1 (Pressed)
	2 (Normal/Released)
	2 (Pressed)