[webkit-gtk] NPAPI Drawing

[Sergio Villar Senin]

En 17/04/13 09:00, Christian Frost escribiu:
> Hi,
> 
> I have created a NPAPI plugin and its correctly loaded in WebKit.
> However, I want to "paint" in it (or actually I want to make it
> invisible, e.g. setting alpha channel, such that the graphics behind
> can be shown) I have tried to use something like:
> 
> NPError NPP_SetWindow(NPP npp, NPWindow* window)
> {
>     if(npp == NULL)
>         return NPERR_INVALID_INSTANCE_ERROR;
> 
>     PluginInstance * plugin = npp->pdata;
>     Widget netscape_widget;
>     if(window){
>         plugin->window = (Window) window->window;
>         plugin->x = window->x;
>         plugin->y = window->y;
>         plugin->width = window->width;
>         plugin->height = window->height;
>         plugin->display = ((NPSetWindowCallbackStruct
> *)window->ws_info)->display;
>         netscape_widget = XtWindowToWidget(plugin->display, plugin->window);
> ......................
> .....................
> 
> When the code reaches XtWindowToWidget it fails:
> "Error: Couldn't find per display information"
> 
> Can anyone help me?

This is a list for WebKitGtk+ development, I'd suggest to check the docs
[1] or to ask in any Mozilla forum.

BR

[1] https://developer.mozilla.org/en-US/docs/Plugins