Click above to get retro games delivered to your door ever month!

  MSISPRESS()                                                 Mouse Function
 Purpose..: Check for a particular mouse button press
-------------------------------------------------------------------------------
 Syntax...: MsIsPress( <nButton> ) --> YES|NO

 Arguments: <nButton> = the mouse button to check. Valid button numbers
                        are defined in FW_MAIN.CH as follows:

              Mouse Button Translate Directives as found in FW_MAIN.CH
              --------------------------------------------------------
              Value  FW_MAIN.CH   Button(s) pressed
              --------------------------------------------------------
              0      MB_NONE      none
              1      MB_LEFT      left
              2      MB_RIGHT     right
              3      MB_LT_RT     middle
              4      MB_MIDDLE    left and right
              5      MB_LT_MD     left and middle
              6      MB_MD_RT     middle and right
              7      MB_ALL       all buttons pressed
              --------------------------------------------------------

 Returns..: Returns TRUE if the mouse button has been pressed.

 Source...: MSSTATUS.C
-------------------------------------------------------------------------------
 Example..: . When a mouse button is pressed, interrupts representing
              the press get generated very quickly. Often, you will want to
              clear the button press before processing a press. This insures
              that you are processing just one button press. The following
              code demonstrates clearing the LEFT mouse button.

            if MsIsPress( MB_LEFT )
               ClearPress( MB_LEFT )
            endif
            ...
            FUNCTION ClearPress( nButton )

               while MsIsPress( nButton )
               enddo

            RETURN NIL