[Mono-list] pinvoke to clutter function

Daniel Hughes trampster at gmail.com
Tue Jun 15 01:30:18 EDT 2010

The documentation for gerror says that null is used to mean you don't
want the error info. I have also seen null pass in to this function in
many clutter tutorials.

On Tue, Jun 15, 2010 at 12:19 AM, Robert Jordan <robertj at gmx.net> wrote:
> On 14.06.2010 13:37, Daniel Hughes wrote:
>> I'm trying to pinvoke to a clutter function.
>> The function is defined in the docs as
>> ClutterActor * clutter_texture_new_from_file (const gchar *filename,
>> GError **error);
>> The code I have is as follows:
>> [DllImport ("libclutter-glx-1.0.so.0")]
>> private static extern IntPtr clutter_texture_new_from_file (string
>> filename, IntPtr errorData);
> This must be "ref IntPtr errorData" unless the function is
> documented to work with NULL ptrs.
>> And I call it like this:
>> IntPtr texture = clutter_texture_new_from_file("myImage.jpeg",IntPtr.Zero);
>> however when called like this in monodevelop on ubuntu I get the
>> following error.
>> Unix Transport Error
>> Eventally I would like to get the error reporting working so I can get
>> the gerror result however firstly I need to get past the Unix
>> Transport Error.
> Have you tried to run the app outside monodevelop?
> Robert
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