SYSTEM.MOUSE_FORM
If the mouse is in a form document, SYSTEM.MOUSE_FORM represents the name of that form document as a CHAR value. For example, if the mouse is in Form_Module1, the value for SYSTEM.MOUSE_ITEM is FORM_MODULE1.
Note: SYSTEM.MOUSE_FORM is NULL if the platform is not a GUI platform.
SYSTEM.MOUSE_BUTTON_PRESSED examples
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