Check that display was opened successfully.

AndrewFromMelbourne · Jan 21, 2016 · 4e1d3d9 · 4e1d3d9
1 parent 512cf55
commit 4e1d3d9
Show file tree

Hide file tree

Showing 2 changed files with 5 additions and 1 deletion.
diff --git a/raspi2png b/raspi2png
diff --git a/raspi2png.c b/raspi2png.c
@@ -231,7 +231,11 @@ main(
 
     if (displayHandle == 0)
     {
-        fprintf(stderr, "%s: unable to open display\n", program);
+        fprintf(stderr,
+                "%s: unable to open display %d\n",
+                program,
+                displayNumber);
+
         exit(EXIT_FAILURE);
     }