Add input characters utf8

Author: britzl

imgui/api/imgui.script_api

@@ -1350,6 +1350,15 @@
       - name: character
         type: string
 
+#*****************************************************************************************************
+
+  - name: add_input_characters
+    type: function
+
+    parameters:
+      - name: characters
+        type: string
+
 #*****************************************************************************************************
 
   - name: is_mouse_double_clicked

imgui/src/extension_imgui.cpp

@@ -475,6 +475,14 @@ static int imgui_AddInputCharacter(lua_State* L)
     io.AddInputCharacter(c);
     return 0;
 }
+static int imgui_AddInputCharacters(lua_State* L)
+{
+    DM_LUA_STACK_CHECK(L, 0);
+    ImGuiIO& io = ImGui::GetIO();
+    const char* s = luaL_checkstring(L, 1);
+    io.AddInputCharactersUTF8(s);
+    return 0;
+}
 
 
 // ----------------------------