/// <summary>
/// Get power state of the given devive
/// </summary>
/// <param name="device"></param>
/// <returns>The power state of the device. Power state is unknown if the query fails</returns>
/// <exception cref="CecException">Can't connect to CecBus</exception>
public PowerState GetDevicePowerState(CecLogicalAddress device)
{
PowerState state = PowerState.PowerUnknown;
if (IsDeviceReady(device))
{
CecPowerStatus cecStatus = connection.GetDevicePowerStatus(device);
state = cecStatus switch
{
CecPowerStatus.On => PowerState.PowerOn,
CecPowerStatus.Standby => PowerState.PowerOff,
_ => PowerState.PowerUnknown
};
}
return(state);
}
public void Transmit(CecCommand cmd, bool activateSource = false)
{
if (cmd.Opcode == CecOpcode.Standby &&
Lib.GetDevicePowerStatus(CecLogicalAddress.Tv) != CecPowerStatus.On)
{
return;
}
if (_settingActiveSource)
{
return;
}
if (activateSource)
{
_settingActiveSource = true;
Lib.SetActiveSource(CecDeviceType.PlaybackDevice);
/*
* Since we dont know when its fully connected as a source,
* we have to take a guess on when its done, if we dont
* our queued cmd wont trigger.
*/
Thread.Sleep(CMD_DELAY);
_settingActiveSource = false;
Transmit(cmd);
return;
}
//First try and transmit command, if that fails try and reconnect the send again.
if (!Lib.Transmit(cmd))
{
Transmit(cmd, true);
return;
}
//We need some delay if we suceeded with the transmission,
//else the tv will spazz out if overloaded with commands.
Thread.Sleep(CMD_DELAY);
}
public void Scan()
{
StringBuilder output = new StringBuilder();
output.AppendLine("CEC bus information");
output.AppendLine("===================");
CecLogicalAddresses addresses = Lib.GetActiveDevices();
for (int iPtr = 0; iPtr < addresses.Addresses.Length; iPtr++)
{
CecLogicalAddress address = (CecLogicalAddress)iPtr;
if (!addresses.IsSet(address))
{
continue;
}
CecVendorId iVendorId = Lib.GetDeviceVendorId(address);
bool bActive = Lib.IsActiveDevice(address);
ushort iPhysicalAddress = Lib.GetDevicePhysicalAddress(address);
string strAddr = Lib.PhysicalAddressToString(iPhysicalAddress);
CecVersion iCecVersion = Lib.GetDeviceCecVersion(address);
CecPowerStatus power = Lib.GetDevicePowerStatus(address);
string osdName = Lib.GetDeviceOSDName(address);
string lang = Lib.GetDeviceMenuLanguage(address);
output.AppendLine("device #" + iPtr + ": " + Lib.ToString(address));
output.AppendLine("address: " + strAddr);
output.AppendLine("active source: " + (bActive ? "yes" : "no"));
output.AppendLine("vendor: " + Lib.ToString(iVendorId));
output.AppendLine("osd string: " + osdName);
output.AppendLine("CEC version: " + Lib.ToString(iCecVersion));
output.AppendLine("power status: " + Lib.ToString(power));
if (!string.IsNullOrEmpty(lang))
{
output.AppendLine("language: " + lang);
}
output.AppendLine("");
}
Debug.WriteLine(output.ToString());
}
/// <summary>
/// Is the TV screen on?
/// </summary>
/// <returns></returns>
public bool TvScreenIsOn()
{
return(CecLib.GetDevicePowerStatus(CecLogicalAddress.Tv) == CecPowerStatus.On);
}
public string GetPowerStatus(CecLogicalAddress device)
{
return(_lib.GetDevicePowerStatus(device).ToString());
}