detect_midi_driver(3alleg4) Allegro manual detect_midi_driver(3alleg4)NAME
detect_midi_driver - Detects whether the specified MIDI sound device is available. Allegro game programming library.
int detect_midi_driver(int driver_id);
Detects whether the specified MIDI sound device is available. This function must be called _before_ install_sound().
Returns the maximum number of voices that the driver can provide, or zero if the hardware is not present.
There are two special-case return values that you should watch out for: if this function returns -1 it is a note-stealing driver (eg. DIG-
MID) that shares voices with the current digital sound driver, and if it returns 0xFFFF it is an external device like an MPU-401 where
there is no way to determine how many voices are available.
SEE ALSO install_sound(3alleg4), reserve_voices(3alleg4)Allegro version 4.4.2 detect_midi_driver(3alleg4)
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reserve_voices(3alleg4) Allegro manual reserve_voices(3alleg4)NAME
reserve_voices - Reserve a number of voices for the digital and MIDI drivers. Allegro game programming library.
void reserve_voices(int digi_voices, int midi_voices);
Call this function to specify the number of voices that are to be used by the digital and MIDI sound drivers respectively. This must be
done _before_ calling install_sound(). If you reserve too many voices, subsequent calls to install_sound() will fail. How many voices are
available depends on the driver, and in some cases you will actually get more than you reserve (eg. the FM synth drivers will always pro-
vide 9 voices on an OPL2 and 18 on an OPL3, and the SB digital driver will round the number of voices up to the nearest power of two). Pass
negative values to restore the default settings. You should be aware that the sound quality is usually inversely related to how many voices
you use, so don't reserve any more than you really need.
SEE ALSO set_volume_per_voice(3alleg4), install_sound(3alleg4), detect_digi_driver(3alleg4), detect_midi_driver(3alleg4), get_mixer_voices(3alleg4)Allegro version 4.4.2 reserve_voices(3alleg4)
What is the point of this? Whenever I close my shell it appends to the history file without adding this. I have never seen it overwrite my history file.
# When the shell exits, append to the history file instead of overwriting it
shopt -s histappend (3 Replies)
I'm trying to delete a file with a weird name from within Terminal on a Mac.
It's a very old file (1992) with null characters in the name: ââWord FinderÂŽ Plusâ˘.
Here are some examples of what I've tried:
12FX009:5 dpontius$ ls
ââWord FinderÂŽ Plusâ˘
12FX009:5 dpontius$ rm... (29 Replies)