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kaarna
Joined: 03 Apr 2006
Posts: 92
Location: Finland
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 Posted: Thu Jun 28, 2007 11:33 am Post subject: How to wrap extern(C) int function (GstPad*, GstCaps*) Func |
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So is it at all possible to wrap this kind of functions, that don't have a gpointer user_data, that can be used for the D instance? Normally the D instance is put onto the gpointer/void* user_data argument. But what about this:
| Code: | public typedef extern(C) int function (GstPad*, GstCaps*) GstPadSetCapsFunction;
public void setSetCapsFunction( int delegate(Caps) dlg )
{
onSetSetCapsListener = dlg;
gst_pad_set_setcaps_function( gstPad, callBackSetSetCaps );
}
int delegate(Caps) onSetSetCapsListener;
extern(C) static int callBackSetSetCaps(GstPad* pad, GstCaps* caps)
{
//Umm so what do I do here, as I haven't got the D instance?
//How do I call the onSetSetCapsListener?
} |
Or could there be another way? Can't find any implementions of this kind of stuff from elsewhere on gtkD.
Quick responses would be appreciated, as I'm in a hurry to do a release on 1st of July...  |
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Ant
Joined: 06 Mar 2004
Posts: 306
Location: Canada
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| Posted: Thu Jun 28, 2007 10:38 pm Post subject: Re: How to wrap extern(C) int function (GstPad*, GstCaps*) |
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| satelliittipupu wrote: | So is it at all possible to wrap this kind of functions, that don't have a gpointer user_data, that can be used for the D instance? Normally the D instance is put onto the gpointer/void* user_data argument. But what about this:
| Code: | public typedef extern(C) int function (GstPad*, GstCaps*) GstPadSetCapsFunction;
public void setSetCapsFunction( int delegate(Caps) dlg )
{
onSetSetCapsListener = dlg;
gst_pad_set_setcaps_function( gstPad, callBackSetSetCaps );
}
int delegate(Caps) onSetSetCapsListener;
extern(C) static int callBackSetSetCaps(GstPad* pad, GstCaps* caps)
{
//Umm so what do I do here, as I haven't got the D instance?
//How do I call the onSetSetCapsListener?
} |
Or could there be another way? Can't find any implementions of this kind of stuff from elsewhere on gtkD.
Quick responses would be appreciated, as I'm in a hurry to do a release on 1st of July... :) |
if nothing better comes up...
int delegate(Caps) dlg[GstPad*] // or something like that - with correct D sintax
of course you'll have to manage the associative array yourself.
Ant |
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