The mouse cursor will change state when you hover over a textbox to a text cursor, and when you hover over a hyperlink to a hand cursor.
The exported integer hag_mouse will store the status of the cursor.
Hag exports this variable leaves it up to you to decide how to implement the cursor change - for example, you may decide you don't want this functionality, or you may have your own cursor animations.
hag_mouse will return one of the following exported constants:
HAG_MOUSE_HAND = 1 ; Export
HAG_MOUSE_TEXT = 2 ; Export
HAG_MOUSE_BUSY = 3 ; Export // Not Implemented
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