Inherit input devices using Window::signal_input_event from sigc::trackable

[libs/gui.git] / source / input / keyboard.h

diff --git a/source/input/keyboard.h b/source/input/keyboard.h
index 8cd83f221c3cba317588ec35c4bf216cdb732cf9..15fe4f95cd814f7ef6c7034659c265f29ede18d9 100644 (file)
--- a/source/input/keyboard.h
+++ b/source/input/keyboard.h
@@ -1,6 +1,7 @@
 #ifndef MSP_INPUT_KEYBOARD_H_
 #define MSP_INPUT_KEYBOARD_H_
 
+#include <sigc++/trackable.h>
 #include <msp/graphics/window.h>
 #include <msp/stringcodec/ustring.h>
 #include "device.h"
@@ -12,7 +13,7 @@ namespace Input {
 Adapts key events from a window to the abstracted input framework.  Key codes
 are translated to platform-independent values.  See keys.h for a list.
 */
-class Keyboard: public Device
+class Keyboard: public Device, public sigc::trackable
 {
 public:
        sigc::signal<bool, StringCodec::unichar>::accumulated<EventAccumulator> signal_character;