Events

Functions
void	CVCError (ErrorCode ErrorCode, BSTR ErrorString, boolean *Continue)
	This event is fired, if an error occurs in the RingBuffer Control. More...
void	ImageUpdated ()
	Generated when the image object has changed, e.g. the number of buffers have 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 RingBuffer Control.

Attention

An error could occur, for instance, an invalid image. 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. 17 CVC_E_NOINTERFACE   No interface available (e.g. IRingBuffer or IGrab2). 18 CVC_E_BUSY   The property or method does not succeed because the hardware was busy. You may have to stop any acquisition before changing a property or calling a method.
[in]	ErrorString	Specifies the error text of the output.
[in,out]	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 message 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.

Related Topics:

Image Control CVCErrorEvent, Display Control CVCErrorEvent

Examples:

Delphi - Delphi RingBuffer Example
Visual Basic - VB RingBuffer Example 1 and VB RingBuffer Example 2
Visual C++ - VC RingBuffer Example

ImageUpdated()

void ImageUpdated

(

)

Generated when the image object has changed, e.g. the number of buffers have been changed.

Examples:

Delphi - Delphi RingBuffer Example
Visual Basic - VB RingBuffer Example 1 and VB RingBuffer Example 2
Visual C++ - VC RingBuffer Example