/* If the device provides a heartbeat timeout, this function will set the heartbeat timeout.
* When the device provides the parameter, the old value is returned, -1 otherwise.
* The heartbeat timeout is a parameter provided by the transport layer.
* The transport layer parameters are exposed as a GenApi node map that
* can be retrieved from the device.
*/
private static long setHeartbeatTimeout(PYLON_DEVICE_HANDLE hDev, long timeout_ms)
{
NODEMAP_HANDLE hNodemap; /* Handle to the node map. */
NODE_HANDLE hNode; /* Handle to a node, i.e., a feature. */
long oldTimeout; /* The current timeout value. */
/* Get the node map for the transport layer parameters. */
hNodemap = Pylon.DeviceGetTLNodeMap(hDev);
if (!hNodemap.IsValid)
{
/* The device doesn't provide a transport layer node map. Nothing to do. */
Console.WriteLine("The device doesn't provide a transport layer node map. Cannot set heartbeat timeout.");
return(-1);
}
/* Get the node for the heartbeat timeout parameter. */
hNode = GenApi.NodeMapGetNode(hNodemap, "HeartbeatTimeout");
if (!hNode.IsValid)
{
/* There is no heartbeat timeout parameter. Nothing to do. */
Console.WriteLine("There is no heartbeat timeout parameter. Cannot set heartbeat timeout.");
return(-1);
}
/* Get the current value. */
oldTimeout = GenApi.IntegerGetValue(hNode);
/* Set the new value. */
GenApi.IntegerSetValue(hNode, timeout_ms);
/* Return the old value. */
return(oldTimeout);
}
