CvInvokeRedirectError Method (CvInvokeCvErrorCallback, IntPtr, IntPtr)

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Sets a new error handler that can be one of standard handlers or a custom handler that has the certain interface. The handler takes the same parameters as cvError function. If the handler returns non-zero value, the program is terminated, otherwise, it continues. The error handler may check the current error mode with cvGetErrMode to make a decision.

Namespace: Emgu.CV
Assembly: Emgu.CV.World (in Emgu.CV.World.dll) Version: 4.1.1.3497 (4.1.1.3497)

Syntax

C++

Copy

public static IntPtr RedirectError(
	CvInvokeCvErrorCallback errorHandler,
	IntPtr userdata,
	IntPtr prevUserdata
)

Public Shared Function RedirectError ( 
	errorHandler As CvInvokeCvErrorCallback,
	userdata As IntPtr,
	prevUserdata As IntPtr
) As IntPtr

public:
static IntPtr RedirectError(
	CvInvokeCvErrorCallback^ errorHandler, 
	IntPtr userdata, 
	IntPtr prevUserdata
)

static member RedirectError : 
        errorHandler : CvInvokeCvErrorCallback * 
        userdata : IntPtr * 
        prevUserdata : IntPtr -> IntPtr

Parameters

errorHandler: Type: Emgu.CVCvInvokeCvErrorCallback
The new error handler
userdata: Type: SystemIntPtr
Arbitrary pointer that is transparently passed to the error handler.
prevUserdata: Type: SystemIntPtr
Pointer to the previously assigned user data pointer.

Return Value

Type: IntPtr
Pointer to the old error handler

Reference

CvInvoke Class

RedirectError Overload

Emgu.CV Namespace

CvInvokeAddLanguageSpecificTextSet("LSTAD8D78E3_0?cpp=::|nu=.");RedirectError Method (CvInvokeAddLanguageSpecificTextSet("LSTAD8D78E3_1?cpp=::|nu=.");CvErrorCallback, IntPtr, IntPtr)

Parameters

Return Value

Reference

CvInvokeRedirectError Method (CvInvokeCvErrorCallback, IntPtr, IntPtr)