CException::ReportError
Call this member function to report error text in a message box to the user.
virtual int ReportError(
UINT nType = MB_OK,
UINT nMessageID = 0
);
Parameters
nType
Specifies the style of the message box. Apply any combination of the message-box styles to the box. If you don't specify this parameter, the default is MB_OK.nMessageID
Specifies the resource ID (string table entry) of a message to display if the exception object does not have an error message. If 0, the message "No error message is available" is displayed.
Return Value
An AfxMessageBox value; otherwise 0 if there is not enough memory to display the message box. See AfxMessageBox for the possible return values.
Example
Here is an example of the use of CException::ReportError. For another example, see the example for CATCH.
CFile fileInput;
CFileException ex;
// try to open a file for reading.
// The file will certainly not
// exist because there are too many explicit
// directories in the name.
// if the call to Open() fails, ex will be
// initialized with exception
// information. the call to ex.ReportError() will
// display an appropriate
// error message to the user, such as
// "\Too\Many\Bad\Dirs.DAT contains an
// invalid path." The error message text will be
// appropriate for the
// file name and error condition.
if (!fileInput.Open(_T("\\Too\\Many\\Bad\\Dirs.DAT"), CFile::modeRead, &ex))
{
ex.ReportError();
}
else
{
// the file was opened, so do whatever work
// with fileInput we were planning...
fileInput.Close();
}
Requirements
Header: afx.h
See Also
Reference
CFileException::GetErrorMessage