Edge Control Reference 15.0
Events

Functions

void CVCError (ErrorCode ErrorCode, BSTR ErrorString, boolean *Continue)
 This event is fired, if an error occurs in the Edge Control. An error could be, for instance, an invalid image. 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 Edge Control. An error could be, for instance, an invalid image.

Attention
Please include the appropriate header file for your compiler (cvcerror.*).
Parameters
[in]ErrorCodeA unique number describing the error. The following error codes have been defined:
1CVC_E_ERROR
 This error cannot be described more precisely.
2CVC_E_PARAMETER
 There is a incorrect parameter in a function call.
5CVC_E_MEMORY
 Memory could not be allocated.
6CVC_E_INVALIDPLANE
 The plane specified in the PlaneIndex property is invalid.
16CVC_E_NOIMAGE
 There is no image assigned to the control.
[in]ErrorStringSpecifies the error text of the output.
[in,out]ContinueThis 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:
Execute
Examples:
Delphi - Delphi Edge OCX Example
Visual Basic - VB Edge OCX Example
Visual C++ - VC Edge OCX Example

◆ ImageUpdated()

void ImageUpdated ( )

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