diff options
| -rw-r--r-- | progs/xdemos/glsync.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/progs/xdemos/glsync.c b/progs/xdemos/glsync.c index 0608f75534d..6108d991d01 100644 --- a/progs/xdemos/glsync.c +++ b/progs/xdemos/glsync.c @@ -120,6 +120,7 @@ int main(int argc, char *argv[]) int width = 500, height = 500, verbose = 0, countonly = 0, interval = 1; int c, i = 1; + int ret; int attribs[] = { GLX_RGBA, GLX_RED_SIZE, 1, GLX_GREEN_SIZE, 1, @@ -234,7 +235,10 @@ int main(int argc, char *argv[]) } XMapWindow(disp, winGL); - glXMakeCurrent(disp, winGL, context); + ret = glXMakeCurrent(disp, winGL, context); + if (ret) { + fprintf(stderr, "failed to make context current: %d\n", ret); + } video_sync_get = glXGetProcAddress((unsigned char *)"glXGetVideoSyncSGI"); video_sync = glXGetProcAddress((unsigned char *)"glXWaitVideoSyncSGI"); |