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Indicates whether an error occurred. If an error occurred, this VI returns a description of the error and optionally displays a dialog box.

This VI calls the General Error Handler VI and has the same basic functionality as General Error Handler but with fewer options.

	error code is a numeric error code. If error in indicates an error, the VI ignores error code. If not, the VI tests it. A nonzero value signifies an error.
	error source is an optional string you can use to describe the source of error code.
	type of dialog determines what type of dialog box to display, if any. Regardless of its value, the VI outputs the error information and message describing the error. 0 No dialog—Displays no dialog box. This is useful if you want to have programmatic control over handling errors. 1 OK message (default)—Displays a dialog box with a single OK button. After the user acknowledges the dialog box, the VI returns control to the main VI. 2 Continue or stop message—Displays a dialog box with buttons, which the user can use to either continue or stop. If the user selects Stop, the VI calls the Stop function to halt execution. 3 OK message with warnings—Displays a dialog box with any warnings and a single OK button. After the user acknowledges the dialog box, the VI returns control to the main VI. 4 Continue or stop message with warnings—Displays a dialog box with any warnings and buttons, which the user can use to either continue or stop. If the user selects Stop, the VI calls the Stop function to halt execution.
	error in describes error conditions occurring before the function executes. status is TRUE if an error occurred. code is the error or warning code. The default is 0. If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code. source specifies 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.
	error? indicates whether an error occurred. If this VI finds an error, it sets the parameters in the error cluster.
	code out is the error code indicated by error in or error code.
	source out indicates the source of the error. The source out string is a more descriptive string than the source string in the error in input.
	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 front panel indicator 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.
	message describes the error code that occurred, the source of the error, and a description of the error. If the VI does not return a description of the error, you can take several actions to find the error code description. If more than one description exists for the same error code, the VI displays all the descriptions, separated by or.