KeyPress: Allow isKeyDown to handle dual-symbol keys like =/+, ;/: on Windows

modules/juce_gui_basics/native/juce_Windowing_windows.cpp

@@ -4757,29 +4757,14 @@ JUCE_IMPLEMENT_SINGLETON (HWNDComponentPeer::WindowClassHolder)
 //==============================================================================
 bool KeyPress::isKeyCurrentlyDown (const int keyCode)
 {
-    auto k = (SHORT) keyCode;
-
-    if ((keyCode & extendedKeyModifier) == 0)
+    const auto k = [&]
     {
-        if (k >= (SHORT) 'a' && k <= (SHORT) 'z')
-            k += (SHORT) 'A' - (SHORT) 'a';
-
-        // Only translate if extendedKeyModifier flag is not set
-        const SHORT translatedValues[] = { (SHORT) ',', VK_OEM_COMMA,
-                                           (SHORT) '+', VK_OEM_PLUS,
-                                           (SHORT) '-', VK_OEM_MINUS,
-                                           (SHORT) '.', VK_OEM_PERIOD,
-                                           (SHORT) ';', VK_OEM_1,
-                                           (SHORT) ':', VK_OEM_1,
-                                           (SHORT) '/', VK_OEM_2,
-                                           (SHORT) '?', VK_OEM_2,
-                                           (SHORT) '[', VK_OEM_4,
-                                           (SHORT) ']', VK_OEM_6 };
+        if ((keyCode & extendedKeyModifier) != 0)
+            return keyCode;
 
-        for (int i = 0; i < numElementsInArray (translatedValues); i += 2)
-            if (k == translatedValues[i])
-                k = translatedValues[i + 1];
-    }
+        const auto vk = BYTE (VkKeyScan ((WCHAR) keyCode) & 0xff);
+        return vk != (BYTE) -1 ? vk : keyCode;
+    }();
 
     return HWNDComponentPeer::isKeyDown (k);
 }