Yessss it's working !
Thanks you very much for your help, i will be able to continue my work
:)
Romain
On Thu, 2004-04-22 at 00:49, Henrik Sandklef wrote:
> Hmmm.... If you flush the X buffer after the ungrab call. Just add
>
> XFlush(disp);
>
> That should do it... I hope :)
>
> BTW, I would have grabbed the keys insted of the whole keyboard.
>
> /hesa
> On Tue, 2004-04-20 at 20:28, Romain wrote:
> > Humm nobody know where i can find help ?
> >
> > On Mon, 2004-04-19 at 01:39, Romain wrote:
> > > Hello,
> > >
> > > I try to make a little program based on xlib and xosd, it's a daemon
> > > listening on the keyboard made for example to increase volume level or
> > > other things.
> > >
> > > But i have a problem to Ungrab the keyboard, i made a sample of what i
> > > would like to do, if someone see where is the problem
> > >
> > > Thanks ! :)
> > >
> > > Romain
> > >
> > > (gcc devxosd.c -o devxosd -lxosd)
> > >
> > > /*
> > > * XOSD TEST
> > > */
> > >
> > > #include <stdio.h>
> > > #include <stdlib.h>
> > > #include <unistd.h>
> > > #include <fcntl.h>
> > > #include <sys/ioctl.h>
> > > #include <errno.h>
> > > #include <linux/types.h>
> > >
> > > #include <xosd.h>
> > > #include <X11/Xlib.h>
> > > #include <X11/keysym.h>
> > > #include <X11/Xutil.h>
> > >
> > > #include <sys/soundcard.h>
> > >
> > >
> > > int getSound (void)
> > > {
> > > int fd_mixer, vol;
> > >
> > > if ((fd_mixer = open ("/dev/mixer", O_RDWR)) < 0) {
> > > perror ("/dev/mixer");
> > > return -1;
> > > }
> > >
> > > if (ioctl (fd_mixer, SOUND_MIXER_READ_VOLUME, &vol) == -1) {
> > > perror ("ioctl");
> > > return -1;
> > > }
> > >
> > > if (close(fd_mixer) == -1) {
> > > perror("close");
> > > return -1;
> > > }
> > >
> > > return vol&255;
> > > }
> > >
> > > int setSound (int v)
> > > {
> > > int fd_mixer, vol;
> > >
> > > if ((fd_mixer = open ("/dev/mixer", O_RDWR)) < 0) {
> > > perror ("/dev/mixer");
> > > return -1;
> > > }
> > >
> > > vol = (v << 8) | v ;
> > >
> > > if (ioctl (fd_mixer, SOUND_MIXER_WRITE_VOLUME, &vol) == -1) {
> > > perror ("ioctl");
> > > return -1;
> > > }
> > >
> > > if (close(fd_mixer) == -1) {
> > > perror("close");
> > > return -1;
> > > }
> > >
> > > return 0;
> > > }
> > >
> > > int volume (int level)
> > > {
> > > Display *disp = NULL;
> > > Window root;
> > >
> > > disp = XOpenDisplay(NULL);
> > > if (!disp) {
> > > fprintf(stderr, "Failed to open display\n");
> > > return -1;
> > > }
> > >
> > > root = DefaultRootWindow(disp);
> > >
> > >
> > > /* Xlib */
> > > int nbre;
> > > char chaine[2];
> > > KeySym touche;
> > >
> > > /* Xosd */
> > > xosd *osd = NULL;
> > > char *font =
> > > "-adobe-helvetica-bold-r-normal-*-*-240-*-*-p-*-iso8859-1";
> > > char *title = "Volume";
> > >
> > > int isUp = 1;
> > >
> > > osd = xosd_create (2);
> > > if (osd == NULL) {
> > > perror ("Could not create \"osd\"");
> > > return -1;
> > > }
> > >
> > > if (xosd_set_font (osd, font)) {
> > > printf ("Cound not set font\n");
> > > return -1;
> > > }
> > >
> > > xosd_set_shadow_offset (osd, 2);
> > > xosd_set_colour (osd, "white");
> > >
> > > /* Position */
> > > xosd_set_pos (osd, XOSD_bottom);
> > > xosd_set_vertical_offset (osd, 20);
> > > xosd_set_align (osd, XOSD_center);
> > > xosd_set_horizontal_offset (osd, 0);
> > > xosd_set_bar_length(osd, 20);
> > >
> > > xosd_display (osd, 0, XOSD_string, title);
> > > xosd_display (osd, 1, XOSD_percentage, level);
> > >
> > > XGrabKeyboard (disp, root, True, GrabModeAsync, GrabModeAsync,
> > > CurrentTime);
> > >
> > > while (isUp) {
> > > XEvent ev;
> > >
> > > XNextEvent (disp, &ev);
> > > if (ev.type == KeyPress) {
> > >
> > > nbre = XLookupString (&ev.xkey, chaine, 2, &touche, 0);
> > > chaine[nbre] = 0;
> > >
> > > switch (touche) {
> > >
> > > case XK_q:
> > > case XK_Q:
> > > case XK_Escape:
> > > isUp = 0;
> > > break;
> > >
> > > case XK_Right:
> > > level = (level > 95 ? 100 : level + 5 );
> > > setSound(level);
> > > xosd_display (osd, 1, XOSD_percentage, level);
> > > break;
> > >
> > > case XK_Left:
> > > level = (level < 5 ? 0 : level - 5 );
> > > setSound(level);
> > > xosd_display (osd, 1, XOSD_percentage, level);
> > > break;
> > >
> > > default:
> > > break;
> > > }
> > > }
> > > }
> > >
> > > XUngrabKeyboard (disp, CurrentTime);
> > > xosd_destroy (osd);
> > > return 0;
> > > }
> > >
> > >
> > > int main (int argc, char *argv[])
> > > {
> > > volume (getSound());
> > > printf ("I want the keyboard back !\n");
> > > sleep (20);
> > > return 1;
> > > }
>
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--
Romain <buchu@xxxxxxxxxxxx>
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