Thank neil for the pointer I tried the suggested function but I get
exactly the same Assertion.
Clutter-CRITICAL **: clutter_actor_animatev: assertion `duration > 0' failed
(we except for the v)
here is my code:
public Animation Animate(ClutterAnimationMode mode, uint
duration,
string property1, float val1,
string property2, float val2,
string property3, float val3)
{
var values = new float[]{val1,val2,val3};
IntPtr pointer =
GCHandle.Alloc(values,GCHandleType.Pinned).AddrOfPinnedObject();
Console.WriteLine(duration);
IntPtr nativeAnimation =
clutter_actor_animatev(_clutterActorNative, (ulong)mode, duration, 3,
new
string[]{property1, property2, property3},
pointer);
return new Animation( nativeAnimation );
}
[DllImport ("libclutter-glx-1.0.so.0")]
private static extern IntPtr clutter_actor_animatev(IntPtr
actor,ulong mode, uint duration,int n_properties,
string[] properties,
IntPtr values);
On Wed, Jun 23, 2010 at 10:11 PM, Neil Roberts <n...@linux.intel.com> wrote:
>
> Daniel Hughes <tramps...@gmail.com> wrote:
>
>> I am playing around with clutter and am using if from c#.
>>
>> Because the c# bindings are in a poor state I am having to create my
>> own bindings as I go.
>>
>> clutter_actor_animate is a hard call to interop because it has a
>> variable number of arguments (something not supported in c#).
>
> Are you literally binding the clutter_actor_animate function? That's not
> recommended. I think the idea is that bindings would bind the
> clutter_actor_animatev function instead which does not take a variable
> number of arguments. clutter_actor_animate is intended as the C
> 'binding' for clutter_actor_animatev which just provides a convenient
> interface. Other languages are expected to bind clutter_actor_animatev
> separately using whatever method makes sense. For example, the Ruby
> bindings take a hash as the last argument which it then converts into
> two separate arrays (one for the property names and one for the values)
> to pass to clutter_actor_animatev. Calling it from Ruby then looks like
> this:
>
> some_actor.animate(Clutter::LINEAR, 1000,
> "x" => 100,
> "y" => 100)
>
> Maybe if C# supports array literals or hash literals it could do
> something similar.
>
>> However I have something which I think will work, (based on the
>> example code I have seen).
>>
>> But when I try to use it I am getting the following assertion.
>>
>> [clutter] clutter_actor_animate: assertion `duration > 0' failed
>>
>> I have debugged it and checked that I am passing a value for duration
>> which is valid ( greater then zero).
>>
>> So before I spend a lot of time trying to debug the interop I wanted
>> to check that their was not a known issue with the
>> clutter_actor_animate function.
>
> I don't think there are any known problems with the duration. You may
> want to try posting a code snippet of your binding and someone with
> knowledge of C# may be able to help.
>
> Regards,
> - Neil
>
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