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The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

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  Parameters on Entry:
 
     mouse-handle            Mouse identifier, obtained by earlier
                             call to CBL_INIT_MOUSE.
 
     collision-area          Defines the collision area. Whenever the
                             pointer is in this area, it is hidden. A
                             value of zeros in this item makes the
                             whole screen a collision area. There can
                             be only one collision area at any one time.
 
  Parameters on Exit:
 
     None
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