LBase::DisplayError

#include "ltwrappr.h"

static L_VOID LBase::DisplayError (hWndParent, lpszStr)

static L_VOID LBase::DisplayError (hWndParent, nErrorCode)

HWND hWndParent;

handle to the parent window

L_TCHAR * lpszStr;

pointer to the error string

L_INT nErrorCode;

a LEADTOOLS error code

Displays an error string.

Parameter

Description

hWndParent

Window handle to the parent window of the message box.

lpszStr

Pointer to the error string to be displayed in the message box.

nErrorCode

One of the LEADTOOLS error codes. If you specify an invalid error code, the message displayed will be "Not a LEADTOOLS error code".

Returns

None

Comments

Call DisplayError (hWndParent, lpStr ) to display your own error string. This function calls the windows MessageBox() function to display the specified error string. The internal error list maintains a running list of the errors that have occurred in the LEADTOOLS C++ Class Library functions.

Call DisplayError (hWndParent, nErrorCode) to display the error string for the specified LEADTOOLS error code.

Required DLLs and Libraries

LTKRN

For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

Platforms

Win32, x64.

See Also

Functions:

LBase::GetErrorString, LBase::SetErrorString, LBase::IsAutoErrorDisplayEnabled, LBase::SetErrorListDepth, LBase::EnableAutoErrorDisplay, LBase::GetErrorFromList, LBase::GetErrorListDepth, LBase::ClearErrorList, LBase::GetErrorsNumber, LBase::DisplayErrorList, LBase::DisplayErrorFromList, LBase::RecordError, Class Members

Example

#define MAKE_IMAGE_PATH(pFileName) TEXT("C:\\Users\\Public\\Documents\\LEADTOOLS Images\\")pFileName 
L_INT LBase__DisplayErrorExample(HWND hWndParent) 
{ 
   L_INT nRet; 
   LBitmap MyBitmap; 
   nRet = MyBitmap.Load(MAKE_IMAGE_PATH(TEXT("Image1.cmp"))); 
   if(nRet != SUCCESS) 
      return nRet; 
   nRet=MyBitmap.AddNoise(); 
   if(nRet!=SUCCESS) 
   { 
      LBase::DisplayError(hWndParent, LBase::GetErrorString(nRet)); 
      return nRet; 
   } 
   return SUCCESS; 
}

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