gtkD load images

[Johnson Jones via Digitalmars-d-learn]

On Thursday, 3 August 2017 at 13:12:03 UTC, Mengu wrote:
> On Thursday, 3 August 2017 at 03:59:40 UTC, Johnson Jones wrote:
>> How can be use gtkD to load images, I assume through 
>> gdkpixbuf? While I am getting errors loading images through 
>> glade's image:
>>
>> (test.exe:8188): Gtk-WARNING **: Could not load 
>> image 'a.jpg': Couldn't recognize the image file format for 
>> file 'test\a.jpg'
>>
>> (loads fine in glade)
>>
>> which needs to be resolved, I'd also like to be able to use 
>> gdkpixbuf to load images programmatically. There seems to be 
>> no demos on the gtkD github page that deals with image loading.
>>
>> I've tried to do something like
>>
>> import gtkc.gdkpixbuf;
>> auto x = c_gdk_pixbuf_get_formats().data;
>>
>> but I don't know how to interpret x.
>>
>> Also something like
>>
>> 		import gtkc.gdkpixbuf;
>> 		void* x;
>> 		auto p = c_gdk_pixbuf_get_formats();
>> 		for(int i = 0; i < 10; i++)
>> 		{			
>> 			x = p.data;
>> 			p = p.next;
>> 		}
>>
>> which doesn't offer any help.
>>
>>
>> Aside: How can we call the gtk functions directly using gtkD? 
>> Seems it uses stuff like
>>
>> Linker.link(gdk_pixbuf_get_formats, "gdk_pixbuf_get_formats", 
>> LIBRARY_GDKPIXBUF);
>>
>> It does seem to alias to these function but something is off 
>> and I'm not sure what.
>
> hi
>
> - is the gtk.Image class not working for you? 
> https://api.gtkd.org/gtkd/gtk/Image.html
>
> - there's also a gdkpixbuf.Pixbuf that you can use. 
> https://api.gtkd.org/gtkd/gdkpixbuf/Pixbuf.html
>
> - you can import those functions from gdkpixbuf.c.functions.

no, they are not... I haven't tried though, but there seems to be 
a problem with the pixbuf not having loaders for any images. 
using a gtk Image widget does not load the image and complains 
about the image format.

If I do something like

import gdkpixbuf.Pixbuf;
Pixbuf.newFromResource("C:\\a.jpg");

Unhandled exception: glib.GException.GException The resource at 
'C:\a.jpg' does not exist at generated\gtkd\glib\GException.d(40) 
occurred

which doesn't seem to make much sense.

The resource exists where I say it is and not sure if this is 
related to the missing pixbuf loaders.