Print the "usage", i.e. what this program actually does

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

1 files changed, 9 insertions, 2 deletions

diff --git a/multitouch.c b/multitouch.c
index 583fc7e..eb3550e 100644
--- a/multitouch.c
+++ b/multitouch.c
@@ -20,6 +20,13 @@
 
 #define MAX_TOUCHES 10
 
+static void usage(void)
+{
+    printf("Usage:\n");
+    printf("	White window: normal touch surface\n");
+    printf("	Black bar left: grabs the touchpoint, no ownership\n");
+}
+
 enum TouchState {
     TSTATE_END = 0,
     TSTATE_BEGIN,
@@ -141,8 +148,6 @@ static void init_windows(struct multitouch *mt)
         error("Failed to establish passive grab on toolbar\n");
 
     XSync(mt->dpy, False);
-
-
 }
 
 static Pixmap init_pixmap(struct multitouch *mt)
@@ -495,6 +500,8 @@ int main(int argc, char **argv)
     int rc;
     struct multitouch mt;
 
+    usage();
+
     init(&mt);
 
     rc = init_x11(&mt, 800, 600);