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This property page is used to select the properties specifying the source for the video input.


Select from the following options:

Displays the vendor's name and model of the currently selected camera. If you have more than one camera connected to the 1394 board, you can switch to another camera by choosing the corresponding camera name in the list. Equivalent to the Camera property.  
Lets you enable the continuous acquisition mode. If this box is checked, the board will continuously acquire the video into the internal image memory. If the control is visible, the live video will be displayed in the control window. Equivalent to the Acquire property.  

Asynchronous mode
Lets you select an acquisition mode. Check this box to set the board to the asynchronous mode. In this mode the board will continuously transfer pixels into the host memory, allowing your application to process a captured frame while the acquisition of the next frame occurs. The asynchronous mode provides the fastest and most efficient setup for real-time image processing. However, if processing occurs at a slower rate than pixels are acquired, using this mode may result in the decomposition of images and loss of data. Clear this check box to set the board to the synchronous mode. In this mode the acquisition of the next frame will be initiated upon the capture command. The synchronous mode is slower, but it guarantees the wholeness of images during real-time processing. Equivalent to the Asynch property.  

Use this option to set the number of seconds to wait for a frame to be acquired. Typically used to assign the timeout when the Trigger mode is active. If the timeout expires, the Timeout event event will be raised. Equivalent to the Timeout property.  
ISO speed
Lets you choose the camera's isochronous transmission speed in Mbps/sec. Possible values are 100, 200, 400 for 1394a cameras and 100, 200, 400, 800 for 1394b cameras. By default the transmission speed is set to the maximum value available for the current 1394 configuration. Reducing the transmission speed can be useful in multiple cameras situations in order to limit the bandwidth available to each camera. Equivalent to the SetIsoSpeed method.  

Select this check box to set the current camera to the trigger mode. This mode is typically used with an asynchronously resetable camera. The acquisition of a frame will occur upon receiving a signal from an external hardware trigger. To set the camera to the continuous mode, clear the Trigger check box. Equivalent to the Trigger property.  
Trigger Source
Lets you select the source for the trigger signal. Depending on a camera, there may be one or more hardware trigger inputs as well as the software trigger. If the software trigger is available and selected, use the Set button to set and reset the trigger event. If the camera doesn't suppot trigger source selection as defined by the DCAM 1.31 specifications, this option will be unavailable. Equivalent to the TriggerSource property and SoftTrigger method.  
Trigger mode
Lets you select the trigger mode as defined by the DCAM 1.31 specifications. If several trigger modes are available for the currently selected camera, you can switch between them by choosing the desired mode from the list. See TriggerMode for more details.  

Trigger polarity
Lets you change polarity of the trigger input. Equivalent to the TriggerPolarity property. Choose one of the following options:      
   High Active - trigger has high active input.      
   Low Active - trigger has low active input.  
Trigger counter
Lets you select the trigger counter (trigger parameter) as defined by the DCAM 1.31 specifications. Equivalent to the TriggerCounter property. See TriggerMode for more details on the usage of the trigger counter.  
Trigger delay
Lets you select the raw value for the trigger delay which defines the time between the arrival of the trigger signal and acquisition of the frame. Equivalent to the TriggerDelay property.