NAME

AGMGainRestricted − find out if audio controller restricts gain entries

SYNOPSIS

Boolean
AGBGainRestricted (

Audio ∗ audio);

DESCRIPTION

AGBGainRestricted() returns TRUE if gain is restricted to AUnityGain or AZeroGain.  The function returns FALSE if other values can be used for gain entries. 

audio specifies the Audio structure associated with this connection. 

RETURN VALUE

Upon succesful completion, AGBGainRestricted() returns TRUE if the audio controller restricts gain entries to AUnityGain or AZeroGain.  The function returns FALSE if other values can be used for gain entries. 

ERRORS

AGBGainRestricted() does not return an error status. 

EXAMPLE

The following example queries the audio controller to see if gain entries are restricted. 

Boolean restricted;  /∗ gain restricted ∗/

Audio ∗ audio;  /∗ audio connection ∗/
.
.
.

/∗ find out if gain values are restricted ∗/

restricted = AGMGainRestricted(audio);

DEPENDENCIES

This function belongs to the Audio Library of functions that manage connections to an audio server.  The audio server must run on a system that has audio hardware. To find out whether or not your system has audio hardware, refer to the hardware manual that accompanies your system. 

AUTHOR

AGMGainRestricted() was developed by HP. 

SEE ALSO

AGetGain(3X), AInputChannels(3X), AInputSources(3X), AMaxInputGain(3X), AMaxOutputGain(3X), AMinInputGain(3X), AMinOutputGain(3X), AOutputChannels(3X), AOutputDestinations(3X), ASetGain(3X), ASetSystemPlayGain(3X), ASetSystemRecordGain(3X), ASimplePlayer(3X), ASimpleRecorder(3X). 

Using the Audio Application Program Interface.

Hewlett-Packard Company  —  HP-UX Release 8.07: November 1991