Events

Functions
void	CVCError (ErrorCode ErrorCode, BSTR ErrorString, boolean *Continue)
	This event is fired if an error occurs in the Grabber Control. More...
void	ImageUpdated ()
	This event is only triggered when the image object has changed. This is the case e.g. when the camera port has been changed. More...

Detailed Description

Function Documentation

CVCError()

void CVCError	(	ErrorCode	ErrorCode,
		BSTR	ErrorString,
		boolean *	Continue
	)

This event is fired if an error occurs in the Grabber Control.

Attention

Please include the appropriate header file for your compiler (cvcerror.*).

Parameters

[in]	ErrorCode	A unique number describing the error. The following error codes have been defined: 1 CVC_E_ERROR   This error cannot be described more precisely. 2 CVC_E_PARAMETER   Incorrect parameter in a function call. 4 CVC_E_TIMEOUT   Timeout during acquisition of an image in ping-pong mode if, for example, there is no trigger although the image acquisition device is waiting for such a signal. 5 CVC_E_MEMORY   Memory could not be allocated. 7 CVC_E_UNSUPPORTEDDATATYPE   Data type that is not supported. 8 CVC_E_INVALIDCAMERAPORT   Specified camera port is invalid. 9 CVC_E_BOARDSELECT   Board selection failed. 10 CVC_E_INVALIDTRIGGERMODE   Trigger mode is invalid. 16 CVC_E_NOIMAGE   No image at all. 17 CVC_E_NOINTERFACE   No interface available.
[in]	ErrorString	Specifies the error text of the output.
[in]	Continue	This specifies whether execution should continue despite the error. The user can overwrite the value in order to change the default action. The default value depends on the function that caused the error. TRUE specifies that a messate box will appear to inform the user of the error. FALSE means that it is possible to perform custom error handling, e.g. use a self-defined message-box.

Examples:

Visual Basic - VB Grabber Control Example

ImageUpdated()

void ImageUpdated

(

)

This event is only triggered when the image object has changed. This is the case e.g. when the camera port has been changed.

Examples:

Visual Basic - VB Grabber Control Example