Optional Rectangle defines a four-element array that contains the left, top, right, and bottom coordinates of the region to process. The VI applies the operation to the entire image if Optional Rectangle is empty or not connected.

Image is a reference to the inspection image in which you want to search for the template image.

Template Image is a reference to the template for which you want to search during the matching phase. The template image is an output of the IMAQ Learn Pattern 2 VI.

Match Pattern Setup Data is a string that contains information from the IMAQ Setup Match Pattern 2 VI or the IMAQ Advanced Setup Match Pattern 2 VI. If this input is not connected, the VI uses default parameters for all unconfigured options.

error in (no error) describes the error status before this VI or function runs. The default is no error. If an error occurred before this VI or function runs, the VI or function passes the error in value to error out. This VI or function runs normally only if no error occurred before this VI or function runs. If an error occurs while this VI or function runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node.

	status is TRUE (X) if an error occurred before this VI or function ran or FALSE (checkmark) to indicate a warning or that no error occurred before this VI or function ran. The default is FALSE.
	code is the error or warning code. If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code.
	source describes the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning. The default is an empty string.

Number of Matches Requested is the number of valid matches expected.

Minimum Match Score is the smallest score a match can have to be considered valid. The data range for a match is between 0 and 1000.

Matches is an array of match clusters. Matches returns the following elements:

	Position is a point-coordinate cluster corresponding to the center of the template.
	Angle is the rotation angle of the template in the source image at the current match location.
	Scale is the change in percentage size of the matched template from the original template. Currently this is always set to 1.
	Score ranks the match results on a scale of 0 to 1,000, where 0 equals no match and 1,000 equals a perfect match.
	Bounding Box is an array of five points that define the boundary of the template pattern in the image. You can connect this array directly to the IMAQ Overlay Multiple Lines VI to overlay the location of a match on your image.

Number of Matches is the number of template matches found in the inspection image based on the input settings.

error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, it describes the error status that this VI or function produces. Right-click the error out indicator on the front panel and select Explain Error from the shortcut menu for more information about the error.

	status is TRUE (X) if an error occurred or FALSE (checkmark) to indicate a warning or that no error occurred.
	code is the error or warning code. If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code.
	source describes the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning. The default is an empty string.