[vtkusers] vtkXMLWriter: How can I catch write errors?

[Utkarsh Ayachit]

Writers typically set the ErrorCode on error. Check the value returned by
GetErrorCode() for errors and details about the errors.

Utkarsh

On Mon, May 25, 2009 at 10:01 AM, Mike Taverne <mtaverne at engits.com> wrote:

> Hi,
>
> I'm using vtkXMLUnstructuredGridWriter and noticed that when I call the
> "Write" method, it always returns 1, even if writing to the file failed
> because of permission problems or a non-existent path.
> An error code does show up in the terminal, but how can I catch it in my
> code?
>
> Here's the Write method, which seems to only return 0 when no input is
> provided:
> ================
> int vtkXMLWriter::Write()
> {
>  // Make sure we have input.
>  if (this->GetNumberOfInputConnections(0) < 1)
>    {
>    vtkErrorMacro("No input provided!");
>    return 0;
>    }
>
>  // always write even if the data hasn't changed
>  this->Modified();
>
>  this->Update();
>  return 1;
>
> }
>
> ================
>
>
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