DOS ain't dead

International keyboard support (Developers)

posted by Laaca , Czech republic, 22.01.2023, 21:55

The loadable keyboard driver creates the ASCII codes from the scancodes.
The scan codes are usualy not changed but not always. For example KEYB changes even the scan code of letters Z/Y (using function INT15h/AH=4Fh).¨

What makes problems are the "dead keys" (the prefix keys). If you press such key the driver usualy does not generate the "Key pressed" interrupt on INT16h or INT 21h.

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DOS-u-akbar!

Complete thread:

• International keyboard support - mbbrutman, 21.01.2023, 21:44
  • International keyboard support - marcov, 22.01.2023, 14:19
  • International keyboard support - tom, 22.01.2023, 18:06
  • International keyboard support - Laaca, 22.01.2023, 21:55
    • International keyboard support - mbbrutman, 22.01.2023, 22:46
      • International keyboard support - Laaca, 23.01.2023, 00:20
      • International keyboard support - bretjohn, 23.01.2023, 18:12
        • International keyboard support - mbbrutman, 23.01.2023, 23:51
          • International keyboard support - bretjohn, 24.01.2023, 21:10
        • International keyboard support - tom, 12.02.2023, 18:39
          • International keyboard support - bretjohn, 13.02.2023, 15:35
            • International keyboard support - tom, 13.02.2023, 18:36
              • International keyboard support - bretjohn, 14.02.2023, 04:51
            • International keyboard support - tkchia, 13.02.2023, 20:13
              • International keyboard support - bretjohn, 14.02.2023, 05:05
      • International keyboard support - tom, 14.02.2023, 12:17
        • International keyboard support - tom, 15.02.2023, 13:19
          • International keyboard support - marcov, 15.02.2023, 18:14
            • International keyboard support - tom, 15.02.2023, 21:31
              • International keyboard support - mbbrutman, 18.02.2023, 03:17
                • International keyboard support - Aitor, 06.03.2023, 01:09