Users Manual Instruction Manual

148
CATC BTTRAINER 2.11 CHAPTER
User’s Manual
Return value
• “Success”
• “Failure”
• “Not connected”
• “No SCO connection”
Comments
This command is used to change gain of connected speaker or microphone.
In order to use this command, an SCO connection must exist.
Example
Main()
{
result = Connect('00803713BDF0');
Trace("Connection result : ", result, "\n");
if( result == "Success")
{
result = HCIAddSCOConnection( '00803713BDF0',
["HV1"]);
Trace("SCO Connection result : ", result, "\n");
if( result == "Success")
{
index = 0;
while(index < 16)
{
result = HCICatcChangeHeadsetGain("Speaker",
index);
Trace("Change speaker gain: ", result, "\n");
result = HCICatcReadHeadsetGain("Speaker",
index);
Trace("Read speaker gain: ", result, "\n");
index = index + 1;
Sleep(2000);
}
index = 0;
while(index < 16)
{
result =
HCICatcChangeHeadsetGain("Microphone", index);
Trace("Change microphone gain: ", result,
"\n");
result = HCICatcReadHeadsetGain("Microphone");
Trace("Read microphone gain : ", result, "\n");
index = index + 1;
Sleep(2000);
}
status = HCIRemoveSCOConnection('00803713BDF0');
Trace("SCO disconnect result: ", status, "\n");
}