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**EVENT:MouseDown**

On a REGION with the IMM attribute, a synonym for EVENT:Accepted (for code readability, only).

**EVENT:MouseIn**

On a REGION with the IMM attribute, the mouse cursor has entered the region.

**EVENT:MouseMove**

On a REGION with the IMM attribute, the mouse cursor has moved within the region.

**EVENT:MouseOut**

On a REGION with the IMM attribute, the mouse cursor has left the region.

**EVENT:MouseUp**

On a REGION with the IMM attribute, the mouse button has been released.