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copied!<p><em><code>a) SDL events are not received with this solution.</code></em><br> As the page mentions, the events are not received by SDL event loop but by Gtk event loop. So you can try capturing events through Gtk event loop.</p> <p><em><code>b) The frame buffer display is always put on the top left of the window (0,0) but I would actually like this display to show up somewhere in the middle on my window, with some buttons above and below.</code></em><br> This is possible. The hack which you are using, basically makes use of the fact that SDL (in case hardware not used directly) & Gtk are dependent on the <a href="http://en.wikipedia.org/wiki/Windowing_system" rel="nofollow"><code>Windowing system</code></a> to display onto window & more precisely on <a href="http://en.wikipedia.org/wiki/X11" rel="nofollow"><code>X11</code></a> on most Linux desktops. Thus window creation is done by <code>X</code> which has an XID, which SDL is using from the one created for <code>GtkWidget</code>. Currently you are using <code>GtkWindow</code>'s corresponding X window, instead if you use <a href="http://developer.gnome.org/gtk/2.24/GtkDrawingArea.html" rel="nofollow"><code>GtkDrawingArea</code></a>'s X window you can make the display as per your wish. Now to get the events, register callback. I tried to create a <a href="http://pastebin.com/16XyaJh7" rel="nofollow">mash up</a> where on clicking "Start SDL Animation", SDL animation starts & clicking in the area of animation will trigger the <code>"button-release-event"</code> which prints the relative x & y coordinates onto the console output but key events are not being received. Hopefully you can build up on this or use it for future reference (in case). </p> <p><em><code>Could you please tell me what kind of GtkWidget should be used to display my frame buffer inside a window?</code></em><br> You can look at <a href="http://developer.gnome.org/gtk/2.24/GtkDrawingArea.html" rel="nofollow"><code>GtkDrawingArea</code></a> which is meant for custom UI interfaces or <a href="http://developer.gnome.org/gtk/2.24/GtkImage.html" rel="nofollow"><code>GtkImage</code></a> with <a href="http://developer.gnome.org/gdk-pixbuf/stable/gdk-pixbuf-Image-Data-in-Memory.html" rel="nofollow"><code>GdkPixbuf</code></a> as few of the alternatives. You can see <code>gtk-demo</code> code or <a href="http://cairographics.org/threaded_animation_with_cairo/" rel="nofollow"><code>Cairo animation sample</code></a> to see how to proceed for your requirements. </p> <p><em><code>Does anyone also please know what function I could use in GTK to perform the same task as SDL_CreateRGBSurfaceFrom() (if it is even possible)?</code></em><br> For this you can have a look at <a href="http://developer.gnome.org/gdk-pixbuf/stable/" rel="nofollow"><code>GdkPixbuf</code></a>. It is possible to set raw data to <code>GdkPixbuf</code> & the pixbuf can be used to create <code>GtkImage</code> and such which you can use for displaying. </p> <p><em><code>And finally, would you please link me to a way to get the x and y coordinates in the GtkWidget that gets clicked or moved in, and not the coordinates of the whole window, as well as keyboards input?</code></em><br> For mouse events you need to register callback for either <a href="http://developer.gnome.org/gtk/2.24/GtkWidget.html#GtkWidget-button-press-event" rel="nofollow"><code>"button-press-event"</code></a> or <a href="http://developer.gnome.org/gtk/2.24/GtkWidget.html#GtkWidget-button-release-event" rel="nofollow"><code>"button-release-event"</code></a>. The signal callback has a <a href="http://developer.gnome.org/gdk/stable/gdk-Event-Structures.html#GdkEvent" rel="nofollow"><code>GdkEvent</code></a> parameter. Typecast that in the callback to <a href="http://developer.gnome.org/gdk/stable/gdk-Event-Structures.html#GdkEventButton" rel="nofollow"><code>GdkEventButton</code></a> & get the information which you need like relative x & y coordinates etc.<br> For keyboard events you need to register callback for either <a href="http://developer.gnome.org/gtk/2.24/GtkWidget.html#GtkWidget-key-press-event" rel="nofollow"><code>"key-press-event"</code></a> or <a href="http://developer.gnome.org/gtk/2.24/GtkWidget.html#GtkWidget-key-release-event" rel="nofollow"><code>"key-release-event"</code></a>. The signal callback has a <a href="http://developer.gnome.org/gdk/stable/gdk-Event-Structures.html#GdkEvent" rel="nofollow"><code>GdkEvent</code></a> parameter. Typecast that in the callback to <a href="http://developer.gnome.org/gdk/stable/gdk-Event-Structures.html#GdkEventKey" rel="nofollow"><code>GdkEventKey</code></a> & get the information which you need. Additionally for keyboard events the widget should be able to grab focus which you can enforce through the call <a href="http://developer.gnome.org/gtk/2.24/GtkWidget.html#gtk-widget-set-can-focus" rel="nofollow"><code>gtk_widget_set_can_focus</code></a><br> Hope this helps!</p>

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