Add an availability check to Touchscreen

[libs/gui.git] / source / input / touchscreen.cpp

diff --git a/source/input/touchscreen.cpp b/source/input/touchscreen.cpp
index 18e795fe83a91da20451ef42e85a17423cc2373c..4facb8c60e44f9b662c636a225946923245497dc 100644 (file)
--- a/source/input/touchscreen.cpp
+++ b/source/input/touchscreen.cpp
@@ -8,6 +8,9 @@ namespace Input {
 Touchscreen::Touchscreen(Graphics::Window &w):
        window(w)
 {
+       if(!is_available())
+               throw runtime_error("touchscreen not available");
+
        name = "Touchscreen";
 
        window.set_touch_input(true);