1 files changed, 64 insertions, 0 deletions
diff --git a/src/fltk.adb b/src/fltk.adb
index 983f308..8591ac2 100644
--- a/src/fltk.adb
+++ b/src/fltk.adb
@@ -3,6 +3,7 @@
 with Interfaces.C;
 with System;
 use type System.Address;
+use type Interfaces.C.unsigned_long;
 
 
 package body FLTK is
@@ -40,5 +41,68 @@ package body FLTK is
     end Initialize;
 
 
+
+
+
+    function Shortcut
+           (Key : Pressable_Key)
+        return Shortcut_Key is
+    begin
+        return This : Shortcut_Key do
+            This.Modifier := Mod_None;
+            This.Keypress := Key;
+        end return;
+    end Shortcut;
+
+
+
+
+    function "+"
+           (Left, Right : in Modifier_Key)
+        return Modifier_Key is
+    begin
+        return Left or Right;
+    end "+";
+
+
+
+
+    function "+"
+           (Left  : in Modifier_Key;
+            Right : in Pressable_Key)
+        return Shortcut_Key is
+    begin
+        return This : Shortcut_Key do
+            This.Modifier := Left;
+            This.Keypress := Right;
+        end return;
+    end "+";
+
+
+
+
+    function "+"
+           (Left  : in Modifier_Key;
+            Right : in Shortcut_Key)
+        return Shortcut_Key is
+    begin
+        return This : Shortcut_Key do
+            This.Modifier := Left or Right.Modifier;
+            This.Keypress := Right.Keypress;
+        end return;
+    end "+";
+
+
+
+
+    function Key_To_C
+           (Key : Shortcut_Key)
+        return Interfaces.C.unsigned_long is
+    begin
+        return Interfaces.C.unsigned_long (Key.Modifier) *
+               65536 + Character'Pos (Key.Keypress);
+    end Key_To_C;
+
+
 end FLTK;