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(gpm.info)hl-Variables

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Variables
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`Gpm_Roi* gpm_roi'
     The linked list of regions (pointer to the top one).

`Gpm_Roi* gpm_current_roi'
     The region which got the last event (used to generate enter and
     leave events).

`Gpm_Handler* gpm_roi_handler'
     This variable is meant to be set by the user. It is the catch-all
     region of interest, which will be called for any mouse event not
     falling within any registered region. If NULL, the event will be
     discarded.

`void* gpm_roi_data'
     the client data to be passed to `gpm_roi_handler'.