# HG changeset patch
# User sl
# Date 1400736605 -7200
# Node ID 69f1fcfdf6a51dcbea487e19da943640f1e73701
# Parent  7268128148b8b2967cac7aeca2ae3b392c9010c2
Fixing crash on stratup if no Futaba VFD connected.

diff -r 7268128148b8 -r 69f1fcfdf6a5 inc/FutabaVfd.h
--- a/inc/FutabaVfd.h	Thu May 22 07:16:55 2014 +0200
+++ b/inc/FutabaVfd.h	Thu May 22 07:30:05 2014 +0200
@@ -52,6 +52,7 @@
 	int Open(const char* aPath);
 	int Open(unsigned short aVendorId, unsigned short aProductId, const wchar_t* aSerialNumber);
 	void Close();
+    bool IsOpen();
 	//
 	int SetNonBlocking(int aNonBlocking);
 	//
@@ -60,7 +61,7 @@
 	//
 	const wchar_t* Error();
 
-	
+
 
 private:
 	///Our USB HID device
@@ -81,9 +82,9 @@
 */
 class FutabaVfdReport: public HidReport<KFutabaMaxHidReportSize>
 	{
-	
+
 private:
-	
+
 	};
 
 
diff -r 7268128148b8 -r 69f1fcfdf6a5 src/FutabaVfd.cpp
--- a/src/FutabaVfd.cpp	Thu May 22 07:16:55 2014 +0200
+++ b/src/FutabaVfd.cpp	Thu May 22 07:30:05 2014 +0200
@@ -110,6 +110,13 @@
 	iHidDevice=NULL;
 	}
 
+/**
+*/
+bool HidDevice::IsOpen()
+    {
+    return iHidDevice!=NULL;
+    }
+
 
 /**
 */
@@ -122,7 +129,7 @@
 */
 int HidDevice::SetNonBlocking(int aNonBlocking)
 	{
-	//Success we are now connected to our HID device 
+	//Success we are now connected to our HID device
 	//Set read operation as non blocking
 	return hid_set_nonblocking(iHidDevice, aNonBlocking);
 	}
diff -r 7268128148b8 -r 69f1fcfdf6a5 src/test.cpp
--- a/src/test.cpp	Thu May 22 07:16:55 2014 +0200
+++ b/src/test.cpp	Thu May 22 07:30:05 2014 +0200
@@ -197,10 +197,11 @@
 	onRescan(NULL, 0, NULL);
 
 	//Just testing our new VFD class
-	iVfd01.Open();
-	iVfd01.SetAllPixels(true);
-	iVfd01.Close();
-
+	if (iVfd01.Open())
+        {
+	    iVfd01.SetAllPixels(true);
+	    iVfd01.Close();
+        }
 
 #ifdef __APPLE__
 	init_apple_message_system();