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QNX specifics



Drivers: GFX_*/QNX
QNX Allegro supports the following card parameters for the set_gfx_mode() function:

  • GFX_TEXT
    This closes any graphic mode previously opened with set_gfx_mode.

  • GFX_AUTODETECT
    Let Allegro pick an appropriate graphics driver.

  • GFX_AUTODETECT_FULLSCREEN
    Autodetects a graphics driver, but will only use fullscreen drivers, failing if these are not available on current platform.

  • GFX_AUTODETECT_WINDOWED
    Same as above, but uses only windowed drivers.

  • GFX_SAFE
    Special driver for when you want to reliably set a graphics mode and don't really care what resolution. See the set_gfx_mode() documentation for details.

  • GFX_PHOTON_DIRECT
    Fullscreen exclusive mode through Photon.

  • GFX_PHOTON
    Windowed mode in a Photon window.

Drivers: DIGI_*/QNX
The QNX sound functions support the following digital soundcards: 

      DIGI_AUTODETECT      - let Allegro pick a digital sound driver
      DIGI_NONE            - no digital sound
      DIGI_ALSA            - ALSA sound driver
Drivers: MIDI_*/QNX
The QNX sound functions support the following MIDI soundcards: 

      MIDI_AUTODETECT      - let Allegro pick a MIDI sound driver
      MIDI_NONE            - no MIDI sound
      MIDI_ALSA            - ALSA RawMIDI driver
      MIDI_DIGMID          - sample-based software wavetable player

The following functions provide a platform specific interface to seamlessly integrate Allegro into general purpose QNX programs. To use these routines, you must include qnxalleg.h after other Allegro headers.

PtWidget_t qnx_get_window(void);
Retrieves a handle to the window used by Allegro. Note that Allegro uses an underlying window even though you don't set any graphics mode, unless you have installed the neutral system driver (SYSTEM_NONE).