Press Key issue with combined keys #67

Sample implementation without example project for analyze purpose.

atests/Keyboard.robot

@@ -46,6 +46,7 @@ ${KEYBOARD_INPUT_SELECTALL}        s'CTRL+A'
 ${KEYBOARD_INPUT_BACKSPACE}        s'BACK'
 ${KEYBOARD_INPUT_COPY}             s'CTRL+C'
 ${KEYBOARD_INPUT_PASTE}            s'CTRL+V'
+@{KEYBOARD_TRIPLE_OUTPUT}          s'SHIFT+ALT+BACK'
 @{KEYBOARD_INPUT_PASTE_ARRAY}      s'CTRL+V'
 @{KEYBOARD_INPUT_TEXT_SHORTCUT}    t'${EXP_VALUE_INPUT_TEXT}'  s'CTRL+A'  s'CTRL+C'  s'END'  s'CTRL+V'
 
@@ -131,6 +132,11 @@ False Argument Type
 	${ERR_MSG}      Run Keyword and Expect Error   *  Press Key   ${KEYBOARD_INPUT_TEXT_ARRAY}  ${XPATH_INPUT_FIELD}
     Should Be Equal As Strings  ${EXP_ERR_MSG}  ${ERR_MSG}
 
+Keyboard Tripple Output
+    Press Keys  ${KEYBOARD_TRIPLE_OUTPUT}    ${XPATH_INPUT_FIELD}
+    Sleep    50s
+
+
 *** Keywords ***
 Reset Textbox
     Click    ${XPATH_RESET}

atests/Unity.robot

@@ -0,0 +1,43 @@
+*** Settings ***
+Documentation   Test suite for unity keyword handling.
+...
+
+Library         FlaUILibrary  uia=${UIA}  screenshot_on_failure=False
+Library         Process
+Library         StringFormat
+
+Test Setup      Init Test
+Test Teardown   Stop Application    ${PID}
+
+Resource        util/Common.robot
+Resource        util/XPath.robot
+
+*** Variables ***
+${IMAGE_DIR}            ${CURDIR}\\apps\\Ocr
+${MAIN_WINDOW_UNITY}    /Window[@Name='Keypress']
+${TEST_APP_UNITY}       apps\\Unity\\Keypress.exe
+
+*** Keywords ***
+Init Test
+    ${PID}  Start Application    ${TEST_APP_UNITY}    ${MAIN_WINDOW_UNITY}
+    Set Global Variable  ${PID}  ${PID}
+    Sleep    10s
+
+*** Test Cases ***
+Simple Keyboard Press Key Test
+    FlaUILibrary.Press Key  s'Y'    ${MAIN_WINDOW_UNITY}
+    Sleep  10s
+    FlaUILibrary.Press Key  s'W'    ${MAIN_WINDOW_UNITY}
+    Sleep  10s
+
+Complex Keyboard Press Key Test
+    FlaUILibrary.Press Key  s'SHIFT+ALT+BACK'    ${MAIN_WINDOW_UNITY}
+    Sleep  10s
+
+    #FlaUILibrary.Press Key  s'SHIFT+ALT+EQUALS'
+    #Sleep  10s
+    #FlaUILibrary.Press Key  s'SHIFT+ALT+ADD'
+    #Sleep  10s
+    #FlaUILibrary.Press Key  s'SHIFT+ALT+SUBTRACT'
+    #Sleep  10s
+

atests/util/Common.robot

@@ -11,7 +11,7 @@ Init Main Application
 
 Stop Application
     [Arguments]  ${pid}=${INTERNAL_PID}  ${xpath}=${MAIN_WINDOW}
-    Close Application  ${pid}
+    FlaUILibrary.Close Application  ${pid}
     Wait Until Element Is Hidden  ${xpath}
 
 Start Application

keen.bat

@@ -28,13 +28,13 @@ EXIT /B %ERRORLEVEL%
 
 :test_uia2
     call cd atests
-    call robot --name "UIA2" --variable UIA:UIA2 --outputdir ../result/uia2 .
+    call robot --name "UIA2" --variable UIA:UIA2 --outputdir ../result/uia2 Keyboard.robot
     call cd ..
 EXIT /B %ERRORLEVEL%
 
 :test_uia3
     call cd atests
-    call robot --name "UIA3" --variable UIA:UIA3 --outputdir ../result/uia3 .
+    call robot --name "UIA3" --variable UIA:UIA3 --outputdir ../result/uia3 Unity.robot
     call cd ..
 EXIT /B %ERRORLEVEL%
 

src/FlaUILibrary/flaui/util/keyboardinputconverter.py

@@ -3,6 +3,7 @@
 from typing import Any
 from FlaUI.Core.WindowsAPI import VirtualKeyShort  # pylint: disable=import-error
 from FlaUILibrary.flaui.exception import FlaUiError
+from FlaUILibrary.robotframework.robotlog import logger
 
 
 class KeyboardInputConverter:
@@ -136,9 +137,10 @@ def convert_key_combination(key_combination: Any):
             (is_success, result) = KeyboardInputConverter._try_convert_to_shortcut(key_combination)
 
             if is_success:
+                logger.info(result)
                 return KeyboardInputConverter.InputType.SHORTCUT, result
 
-            return KeyboardInputConverter.InputType.TEXT, result
+            raise FlaUiError.raise_fla_ui_error("Invalid shortcut usage")
 
         if match(KeyboardInputConverter.TEXT, key_combination):
             return (KeyboardInputConverter.InputType.TEXT,