Added support for Windows 10 language pop-up

Author: erryox

switchy/main.cpp

@@ -1,26 +1,41 @@
 #include <Windows.h>
-
-using namespace std;
+#include <version.h>
 
 HHOOK hHook = 0;
+bool isWindows10 = GetRealOSVersion().dwMajorVersion >= 10;
+bool wasPressed = false;
 
 LRESULT CALLBACK LowLevelKeyboardProc(int nCode, WPARAM wParam, LPARAM lParam) {
 	if (nCode == HC_ACTION) {
 		KBDLLHOOKSTRUCT* p = (KBDLLHOOKSTRUCT*)lParam;
 
 		if (p->vkCode == VK_CAPITAL) {
-			if (wParam == WM_KEYDOWN || wParam == WM_SYSKEYDOWN) {
+			if (wParam == WM_KEYDOWN) {
 				if (GetKeyState(VK_CAPITAL)) {
 					UnhookWindowsHookEx(hHook);
 					keybd_event(VK_CAPITAL, 0x3a, 0, 0);
 					keybd_event(VK_CAPITAL, 0x3a, KEYEVENTF_KEYUP, 0);
 					hHook = SetWindowsHookEx(WH_KEYBOARD_LL, LowLevelKeyboardProc, 0, 0);
 				}
 
-				HWND hWnd = GetForegroundWindow();
-				if (hWnd) {
-					hWnd = GetAncestor(hWnd, GA_ROOTOWNER);
-					PostMessage(hWnd, WM_INPUTLANGCHANGEREQUEST, 0, (LPARAM)HKL_NEXT);
+				if (isWindows10 && !wasPressed) {
+					wasPressed = true;
+					keybd_event(VK_LWIN, 0x3a, 0, 0);
+					keybd_event(VK_SPACE, 0x3a, 0, 0);
+				}
+			}
+
+			if (wParam == WM_KEYUP) {
+				if (isWindows10) {
+					keybd_event(VK_LWIN, 0x3a, KEYEVENTF_KEYUP, 0);
+					keybd_event(VK_SPACE, 0x3a, KEYEVENTF_KEYUP, 0);
+					wasPressed = false;
+				} else {
+					HWND hWnd = GetForegroundWindow();
+					if (hWnd) {
+						hWnd = GetAncestor(hWnd, GA_ROOTOWNER);
+						PostMessage(hWnd, WM_INPUTLANGCHANGEREQUEST, 0, (LPARAM)HKL_NEXT);
+					}
 				}
 			}
 

switchy/switchy.vcxproj

@@ -76,6 +76,7 @@
       <Optimization>Disabled</Optimization>
       <SDLCheck>true</SDLCheck>
       <ConformanceMode>true</ConformanceMode>
+      <AdditionalIncludeDirectories>./</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
@@ -87,6 +88,7 @@
       <Optimization>Disabled</Optimization>
       <SDLCheck>true</SDLCheck>
       <ConformanceMode>true</ConformanceMode>
+      <AdditionalIncludeDirectories>./;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
@@ -100,6 +102,7 @@
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <SDLCheck>true</SDLCheck>
       <ConformanceMode>true</ConformanceMode>
+      <AdditionalIncludeDirectories>./</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
       <SubSystem>Windows</SubSystem>
@@ -116,6 +119,7 @@
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <SDLCheck>true</SDLCheck>
       <ConformanceMode>true</ConformanceMode>
+      <AdditionalIncludeDirectories>./</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
       <SubSystem>Windows</SubSystem>
@@ -127,6 +131,9 @@
   <ItemGroup>
     <ClCompile Include="main.cpp" />
   </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="version.h" />
+  </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>

switchy/switchy.vcxproj.filters

@@ -1,10 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup>
-    <Filter Include="Header Files">
-      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
-      <Extensions>h;hh;hpp;hxx;hm;inl;inc;ipp;xsd</Extensions>
-    </Filter>
     <Filter Include="Source Files">
       <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
       <Extensions>cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
@@ -13,10 +9,19 @@
       <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
       <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
     </Filter>
+    <Filter Include="Header Files">
+      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
+      <Extensions>h;hh;hpp;hxx;hm;inl;inc;ipp;xsd</Extensions>
+    </Filter>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="main.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
   </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="version.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+  </ItemGroup>
 </Project>

switchy/version.h

@@ -0,0 +1,22 @@
+typedef LONG NTSTATUS, * PNTSTATUS;
+#define STATUS_SUCCESS (0x00000000)
+
+typedef NTSTATUS(WINAPI* RtlGetVersionPtr)(PRTL_OSVERSIONINFOW);
+
+RTL_OSVERSIONINFOW GetRealOSVersion() {
+	HMODULE hMod = ::GetModuleHandleW(L"ntdll.dll");
+
+	if (hMod) {
+		RtlGetVersionPtr fxPtr = (RtlGetVersionPtr)::GetProcAddress(hMod, "RtlGetVersion");
+		if (fxPtr != nullptr) {
+			RTL_OSVERSIONINFOW rovi = { 0 };
+			rovi.dwOSVersionInfoSize = sizeof(rovi);
+			if (STATUS_SUCCESS == fxPtr(&rovi)) {
+				return rovi;
+			}
+		}
+	}
+
+	RTL_OSVERSIONINFOW rovi = { 0 };
+	return rovi;
+}