dx_clrsvcond( )

Description | Cautions | Example | Errors | See Also

Name:	int dx_clrsvcond(chdev)
Inputs:	int chdev	valid Dialogic channel device handle
Returns:	0 if success
	-1 if failure
Includes:	srllib.h dxxxlib.h
Category:	Speed and Volume

Description

The dx_clrsvcond( ) function clears all speed or volume adjustment conditions that have been previously set with the dx_setsvcond( ) function or the convenience functions dx_addspddig( ) or dx_addvoldig( ).

Each time you want to reset a single adjustment condition, you must reset all adjustment conditions, by first clearing them using this function, and then resetting the conditions using dx_setsvcond( ), dx_addspddig( ) or dx_addvoldig( ).

Parameter	Description
chdev	specifies the valid channel device handle obtained when the channel was opened using dx_open( ).

Cautions

None.

Example

#include <stdio.h>  
#include <srllib.h>  
#include <dxxxlib.h>  
#include <windows.h>  
   
main()  
{  
   int  dxxxdev;  
   
   /*  
    * Open the Voice Channel Device and Enable a Handler  
    */  
   if ( ( dxxxdev = dx_open( "dxxxB1C1", NULL) ) == -1 ) {  
      perror( "dxxxB1C1" );  
      exit( 1 );  
   }  
   
   /*  
    * Clear all Speed and Volume Conditions  
    */  
   if ( dx_clrsvcond( dxxxdev ) == -1 ) {  
      printf( "Unable to Clear the Speed/Volume" );  
      printf( " Conditions\n" );  
      printf( "Lasterror = %d  Err Msg = %s\n",  
         ATDV_LASTERR( dxxxdev ), ATDV_ERRMSGP( dxxxdev ) );  
      dx_close( dxxxdev );  
      exit( 1 );  
   }  
   
   /*  
    * Continue Processing  
    *   .  
    *   .  
    *   .  
    */  
   
   /*  
    * Close the opened Voice Channel Device  
    */  
   if ( dx_close( dxxxdev ) != 0 ) {  
      perror( "close" );  
   }  
   
   /* Terminate the Program */  
   exit( 0 );  
}

Errors

If this function returns -1 to indicate failure, use ATDV_LASTERR( ) and ATDV_ERRMSGP( ) to retrieve one of the following error reasons:

EDX_BADPARM	Invalid Parameter
EDX_BADPROD	Function not supported on this board
EDX_SYSTEM	Error from operating system; use dx_fileerrno( ) to obtain error value

See Also

• dx_setsvcond( )
• dx_addspddig( )
• dx_addvoldig( )
• Speed and Volume Modification Tables (Voice Software Reference: Voice Features Guide)
• DX_SVCB structure

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