RevMedia

A function which returns an integer which indicates which special keyboard keys are pressed down at the time that the routine is called. To find out whether a particular key is active it is necessary to BITAND the result with a specific integer as shown in the following table. If the BITAND returns false then the key is not pressed.

           1   The Right Shift key
           2   The Left  Shift Key
           3   Left/Right Shift
           4   The Ctrl Key
           8   The Alt Key
          16   The Scroll Lock Key
          32   The Num Lock Key
          64   The Caps Lock Key
         128   Insert Key

Thus to check whether the user was pressing Right-Shifted-Alt the following code segment would suffice