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120 Voice API for Windows Operating Systems Library Reference — November 2003
dx_addspddig( ) — set a DTMF digit to adjust speed
dx_addspddig( )
set a DTMF digit to adjust speed
!
!!
! Description
The dx_addspddig( ) function is a convenience function that sets a DTMF digit to adjust speed by
a specified amount, immediately and for all subsequent plays on the specified channel (until
changed or cancelled).
This function assumes that the speed modification table has not been modified using the
dx_setsvmt( ) function.
For more information about speed and volume control as well as speed and volume modification
tables, see the Voice API Programming Guide. For information about speed and volume data
structures, see the DX_SVMT and the DX_SVCB data structures.
Name: int dx_addspddig(chdev, digit, adjval)
Inputs: int chdev
• valid channel device handle
char digit
• DTMF digit
short adjval
• speed adjustment value
Returns: 0 if success
-1 if failure
Includes: srllib.h
dxxxlib.h
Category: Speed and Volume
Mode: synchronous
Platform: DM3, Springware
Parameter Description
chdev specifies the valid channel device handle obtained when the channel was
opened using dx_open( )