X-Git-Url: http://git.tdb.fi/?p=libs%2Fgui.git;a=blobdiff_plain;f=source%2Finput%2Fdevice.h;h=b42ed3fde4991feb8d87b05258831585db57efec;hp=7df388b18c34f5f0d2dc1001ac61e27ae5b9afa8;hb=e217a93d59aecfa80eec8bfa16b3976abdceca81;hpb=49e19af2c599e7316b5a01983adc040421429f86

diff --git a/source/input/device.h b/source/input/device.h
index 7df388b..b42ed3f 100644
--- a/source/input/device.h
+++ b/source/input/device.h
@@ -3,11 +3,20 @@
 
 #include <string>
 #include <vector>
+#include <stdexcept>
 #include <sigc++/signal.h>
 
 namespace Msp {
 namespace Input {
 
+class device_not_available: public std::runtime_error
+{
+public:
+	device_not_available(const std::string &w): std::runtime_error(w) { }
+	virtual ~device_not_available() throw() { }
+};
+
+
 /**
 Base class for input devices.  Input devices have two types of controls:
 buttons and axes.  Buttons are either on or off.  Axes have a floating point