The trigger delay control is not available for the selected camera
This VB example uses the minimum and maximum trigger delay values to initialize the slider control:
Private SubForm_Load() Slider1.Min = ActiveDcam1.GetTriggerDelayMin
Slider1.Max = ActiveDcam1.GetTriggerDelayMax
Slider1.Value = ActiveDcam1.TriggerDelay
If the currently selected camera doesn't support software trigger delay control, the method will generate an error.