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Diffstat (limited to 'clients/screenshot.c')
-rw-r--r-- | clients/screenshot.c | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/clients/screenshot.c b/clients/screenshot.c new file mode 100644 index 00000000..2ae38a7a --- /dev/null +++ b/clients/screenshot.c @@ -0,0 +1,107 @@ +/* + * Copyright © 2008 Kristian Høgsberg + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that copyright + * notice and this permission notice appear in supporting documentation, and + * that the name of the copyright holders not be used in advertising or + * publicity pertaining to distribution of the software without specific, + * written prior permission. The copyright holders make no representations + * about the suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <stdint.h> +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <fcntl.h> +#include <glib.h> + +#include "wayland-client.h" +#include "wayland-glib.h" + +/* The screenshooter is a good example of a custom object exposed by + * the compositor and serves as a test bed for implementing client + * side marshalling outside libwayland.so */ + +static const char socket_name[] = "\0wayland"; + +struct screenshooter { + uint32_t id; + struct wl_display *display; +}; + +static struct screenshooter * +screenshooter_create(struct wl_display *display) +{ + struct screenshooter *screenshooter; + uint32_t id; + + id = wl_display_get_object_id(display, "screenshooter", 1); + if (id == 0) { + fprintf(stderr, "server doesn't support screenshooter interface\n"); + return NULL; + } + + screenshooter = malloc(sizeof screenshooter); + if (screenshooter == NULL) + return NULL; + + screenshooter->id = id; + screenshooter->display = display; + + return screenshooter; +} + +#define SCREENSHOOTER_SHOOT 0 + +static void +screenshooter_shoot(struct screenshooter *screenshooter) +{ + uint32_t request[2]; + + request[0] = screenshooter->id; + request[1] = SCREENSHOOTER_SHOOT | ((sizeof request) << 16); + + wl_display_write(screenshooter->display, + request, sizeof request); +} + +int main(int argc, char *argv[]) +{ + struct wl_display *display; + GMainLoop *loop; + GSource *source; + struct screenshooter *s; + + display = wl_display_create(socket_name, sizeof socket_name); + if (display == NULL) { + fprintf(stderr, "failed to create display: %m\n"); + return -1; + } + + wl_display_iterate(display, WL_DISPLAY_READABLE); + loop = g_main_loop_new(NULL, FALSE); + source = wl_glib_source_new(display); + g_source_attach(source, NULL); + + s = screenshooter_create(display); + if (s == NULL) + exit(-1); + + screenshooter_shoot(s); + g_idle_add((GSourceFunc) g_main_loop_quit, loop); + g_main_loop_run(loop); + + return 0; +} |