example/randr: check the GetOutputInfo's mode length (virtual head can have zero mode)

2013-12-30 16:58:14 +08:00 · 2013-12-30 16:58:14 +08:00 · 64c6e6170d
parent 76f9adb599
commit 64c6e6170d
1 changed files with 6 additions and 4 deletions
--- a/nexgb/examples/randr/main.go
+++ b/nexgb/examples/randr/main.go
@ -45,6 +45,7 @@ func main() {
 			log.Fatal(err)
 		}

+		if len(info.Modes) > 0 {
 			bestMode := info.Modes[0]
 			for _, mode := range resources.Modes {
 				if mode.Id == uint32(bestMode) {
@ -52,6 +53,7 @@ func main() {
 				}
 			}
 		}
+	}

 	fmt.Println("\n")