// Shown here for demonstration purposes only to illustrate the effect of this configuration.
public static void SoftwareTrigger(object sender, EventArgs e)
{
ICamera camera = sender as ICamera;
// Get required Enumerations.
IEnumParameter triggerSelector = camera.Parameters [PLCamera.TriggerSelector];
IEnumParameter triggerMode = camera.Parameters [PLCamera.TriggerMode];
IEnumParameter triggerSource = camera.Parameters [PLCamera.TriggerSource];
// Check the available camera trigger mode(s) to select the appropriate one: acquisition start trigger mode
// (used by older cameras, i.e. for cameras supporting only the legacy image acquisition control mode;
// do not confuse with acquisition start command) or frame start trigger mode
// (used by newer cameras, i.e. for cameras using the standard image acquisition control mode;
// equivalent to the acquisition start trigger mode in the legacy image acquisition control mode).
string triggerName = "FrameStart";
if (!triggerSelector.CanSetValue(triggerName))
{
triggerName = "AcquisitionStart";
if (!triggerSelector.CanSetValue(triggerName))
{
throw new NotSupportedException("Could not select trigger. Neither FrameStart nor AcquisitionStart is available.");
}
}
try
{
foreach (string trigger in triggerSelector)
{
triggerSelector.SetValue(trigger);
if (triggerName == trigger)
{
// Activate trigger.
triggerMode.SetValue(PLCamera.TriggerMode.On);
// Set the trigger source to software.
triggerSource.SetValue(PLCamera.TriggerSource.Software);
}
else
{
// Turn trigger mode off.
triggerMode.SetValue(PLCamera.TriggerMode.Off);
}
}
}
finally
{
// Set selector for software trigger.
triggerSelector.SetValue(triggerName);
}
// Set acquisition mode to Continuous
camera.Parameters [PLCamera.AcquisitionMode].SetValue(PLCamera.AcquisitionMode.Continuous);
}
// Handles selection changes.
private void comboBox_SelectedIndexChanged(object sender, EventArgs e)
{
if (parameter != null)
{
try
{
// If the parameter is readable and the combo box selection is ok ...
if (parameter.IsReadable && comboBox.SelectedIndex >= 0)
{
// ... get the displayed selected enumeration value.
EnumValue selectedValue = comboBox.SelectedItem as EnumValue;
if (parameter.CanSetValue(selectedValue.ValueName) && selectedValue.ValueName != parameter.GetValue())
{
parameter.TrySetValue(selectedValue.ValueName);
}
}
}
catch
{
// Ignore any errors here.
}
}
}