85 lines
1.8 KiB
C
85 lines
1.8 KiB
C
#include <stdint.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <fcntl.h>
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#include <glib.h>
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#include "wayland-client.h"
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#include "wayland-glib.h"
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/* The screenshooter is a good example of a custom object exposed by
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* the compositor and serves as a test bed for implementing client
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* side marshalling outside libwayland.so */
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static const char socket_name[] = "\0wayland";
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struct screenshooter {
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uint32_t id;
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struct wl_display *display;
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};
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static struct screenshooter *
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screenshooter_create(struct wl_display *display)
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{
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struct screenshooter *screenshooter;
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uint32_t id;
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id = wl_display_get_object_id(display, "screenshooter");
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if (id == 0) {
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fprintf(stderr, "server doesn't support screenshooter interface\n");
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return NULL;
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}
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screenshooter = malloc(sizeof screenshooter);
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if (screenshooter == NULL)
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return NULL;
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screenshooter->id = id;
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screenshooter->display = display;
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return screenshooter;
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}
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#define SCREENSHOOTER_SHOOT 0
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static void
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screenshooter_shoot(struct screenshooter *screenshooter)
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{
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uint32_t request[2];
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request[0] = screenshooter->id;
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request[1] = SCREENSHOOTER_SHOOT | ((sizeof request) << 16);
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wl_display_write(screenshooter->display,
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request, sizeof request);
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}
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int main(int argc, char *argv[])
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{
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struct wl_display *display;
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GMainLoop *loop;
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GSource *source;
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struct screenshooter *s;
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display = wl_display_create(socket_name);
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if (display == NULL) {
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fprintf(stderr, "failed to create display: %m\n");
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return -1;
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}
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loop = g_main_loop_new(NULL, FALSE);
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source = wayland_source_new(display);
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g_source_attach(source, NULL);
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s = screenshooter_create(display);
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if (s == NULL)
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exit(-1);
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screenshooter_shoot(s);
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g_idle_add((GSourceFunc) g_main_loop_quit, loop);
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g_main_loop_run(loop);
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return 0;
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}
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