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CBL_SHOW_MOUSE Details (↑ Mouse Routines)
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  Description:
 
     When the mouse support has been initialized by the CBL_INIT_MOUSE
     call, the pointer is not displayed until this routine is called.
     After this call the system displays the mouse pointer until a
     routine to hide the mouse or terminate mouse support is called.
     This routine cancels any collision area defined earlier by
     PC_SET_MOUSE_HIDE_AREA.
 
     See also: ◄Introduction to mouse routines►
 
  Parameters on Entry:
 
     mouse-handle            Mouse identifier, obtained by earlier
                             call to CBL_INIT_MOUSE.
 
  Parameters on Exit:
 
     None
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