On Sat, Mar 21, 2009 at 9:16 PM, Sven Neumann <[email protected]> wrote:
> Hi,
>
> On Sat, 2009-03-21 at 18:34 +0530, Srikanth Nori wrote:
>
>> I'm using GTK+ over DirectFB on an embedded device. I need to move the
>> mouse pointer, and from the GDK docs it appears that the only function
>> to do this is gdk_display_warp_pointer. However, this is not
>> implemented in GDK-DirectFB. gdk_display_warp_pointer in
>> gdkwindow-directfb.c prints "gdk_display_warp_pointer() not
>> implemented"
>>
>> Is there any other way I can do move the mouse pointer? Any
>> help/suggestions will be really helpful.. Thanks!
>
> Why don't you implement gdk_display_warp_pointer() in GDK-DirectFB using
> IDirectFBDisplayLayer::WarpCursor ? Shouldn't be difficult and if you
> send me the patch I can include it in upstream GTK+.
>
>
> Sven
Sven
Thanks a lot! I tried to implement gdk_display_warp_pointer using
IDirectFBDisplayLayer::WarpCursor like so:
void
gdk_display_warp_pointer (GdkDisplay *display,
GdkScreen *screen,
gint x,
gint y)
{
/* g_warning ("gdk_display_warp_pointer() not implemented.\n"); */
IDirectFBDisplayLayer *layer = _gdk_display->layer;
DFBResult result = -1;
result = layer->WarpCursor(layer, x, y);
}
But the WarpCursor function returned error since the
IDirectFBDisplayLayer_WarpCursor function checks this
if (data->level == DLSCL_SHARED)
return DFB_ACCESSDENIED;
This check was failing (i.e. data->level was set to DLSCL_SHARED) so
it would return DFB_ACCESSDENIED
I'm not very familiar with the internals of DirectFB, so I didn't know
what this meant. However, as a quick and dirty hack, i removed this
check, and I can see the pointer is moving!
However, it still doesn't work completely. I was trying to move the
pointer over a button, and get an event for that operation, but it
appears that GTK/GDK is not recognizing the mouse movement event. What
can I do to get GTK/GDK to recognize this mouse movement?
Regards,
Srikanth
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