Windows: Detect Windows 11 in native code.

native-utils/src/main/java/com/github/weisj/darklaf/nativeutil/AbstractLibrary.java

@@ -46,9 +46,12 @@ public abstract class AbstractLibrary {
     public void updateLibrary() {
         if (!isLoaded() && !attemptedLoad) {
             loadLibrary();
+            afterLoad();
         }
     }
 
+    protected void afterLoad() {}
+
     private void loadLibrary() {
         attemptedLoad = true;
         if (!canLoad() || isLoaded()) {

windows/src/main/cpp/Decorations.cpp

@@ -23,6 +23,7 @@
  *
  */
 #include "Decorations.h"
+#include "Registry.h"
 #include "com_github_weisj_darklaf_platform_windows_JNIDecorationsWindows.h"
 
 #ifndef WM_NCUAHDRAWCAPTION
@@ -32,6 +33,8 @@
 #define WM_NCUAHDRAWFRAME (0x00AF)
 #endif
 
+static bool is_windows_11 = false;
+
 std::map<HWND, WindowWrapper*> wrapper_map = std::map<HWND, WindowWrapper*>();
 
 static bool Maximized(HWND hwnd) {
@@ -462,3 +465,15 @@ Java_com_github_weisj_darklaf_platform_windows_JNIDecorationsWindows_restore(JNI
     HWND handle = reinterpret_cast<HWND>(hwnd);
     ShowWindow(handle, SW_RESTORE);
 }
+
+JNIEXPORT void JNICALL
+Java_com_github_weisj_darklaf_platform_windows_JNIDecorationsWindows_init(JNIEnv*, jclass) {
+    try {
+        auto buildVersion = RegGetString(
+                HKEY_LOCAL_MACHINE,
+                "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion",
+                "CurrentBuild");
+        auto buildInt = std::stoi(buildVersion);
+        is_windows_11 = buildInt >= 22000;
+    } catch (LONG) {}
+}

windows/src/main/cpp/ThemeInfo.cpp

@@ -23,12 +23,12 @@
  *
  */
 #include "com_github_weisj_darklaf_platform_windows_JNIThemeInfoWindows.h"
+#include "Registry.h"
 
 #include <string>
 #include <thread>
 #include <atomic>
 #include <windows.h>
-#include <winreg.h>
 #include <winuser.h>
 
 constexpr auto DARK_MODE_PATH = "Software\\Microsoft\\Windows\\CurrentVersion\\Themes\\Personalize";
@@ -49,41 +49,6 @@ constexpr auto HIGH_CONTRAST_DEFAULT_VALUE = false;
 constexpr auto FONT_SCALE_DEFAULT_VALUE = 100;
 constexpr auto ACCENT_COLOR_DEFAULT_VALUE = 0;
 
-static void ModifyFlags(DWORD &flags) {
-#ifdef _WIN64
-    flags |= RRF_SUBKEY_WOW6464KEY;
-#else
-    flags |= RRF_SUBKEY_WOW6432KEY;
-#endif
-}
-
-static DWORD RegGetDword(HKEY hKey, const LPCSTR subKey, const LPCSTR value) {
-    DWORD data {};
-    DWORD dataSize = sizeof(data);
-    DWORD flags = RRF_RT_REG_DWORD;
-    ModifyFlags(flags);
-    LONG retCode = ::RegGetValue(hKey, subKey, value, flags, nullptr, &data, &dataSize);
-    if (retCode != ERROR_SUCCESS) throw retCode;
-
-    return data;
-}
-
-static std::string RegGetString(HKEY hKey, const LPCSTR subKey, const LPCSTR value) {
-    DWORD dataSize {};
-    DWORD flags = RRF_RT_REG_SZ;
-    ModifyFlags(flags);
-    LONG retCode = ::RegGetValue(hKey, subKey, value, flags, nullptr, nullptr, &dataSize);
-    if (retCode != ERROR_SUCCESS) throw retCode;
-
-    std::string data;
-    DWORD stringLengthInChars = dataSize / sizeof(char);
-    data.resize(stringLengthInChars);
-    retCode = ::RegGetValue(hKey, subKey, value, flags, nullptr, &data[0], &dataSize);
-    if (retCode != ERROR_SUCCESS) throw retCode;
-
-    return data;
-}
-
 static bool IsHighContrastMode() {
     HIGHCONTRAST info = { 0, 0, 0 };
     info.cbSize = sizeof(HIGHCONTRAST);
@@ -119,7 +84,7 @@ static bool RegisterRegistryEvent(const LPCSTR subKey, HANDLE event) {
     HKEY hKey;
     REGSAM flags = KEY_NOTIFY;
     ModifyFlags(flags);
-    DWORD res = RegOpenKeyEx(HKEY_CURRENT_USER, subKey, 0, flags, &hKey);
+    DWORD res = RegOpenKeyExA(HKEY_CURRENT_USER, subKey, 0, flags, &hKey);
     if (res == ERROR_SUCCESS) {
         LSTATUS status = RegNotifyChangeKeyValue(hKey, FALSE, REG_NOTIFY_CHANGE_LAST_SET, event, TRUE);
         return status == ERROR_SUCCESS;

windows/src/main/java/com/github/weisj/darklaf/platform/windows/JNIDecorationsWindows.java

@@ -49,4 +49,6 @@ public final class JNIDecorationsWindows {
     public static native void uninstallDecorations(final long hwnd, final boolean decorated);
 
     public static native boolean installPopupMenuDecorations(final long hwnd);
+
+    public static native void init();
 }

windows/src/main/java/com/github/weisj/darklaf/platform/windows/WindowsLibrary.java

@@ -40,6 +40,11 @@ public class WindowsLibrary extends AbstractLibrary {
         super("darklaf-windows", LogUtil.getLogger(WindowsLibrary.class));
     }
 
+    @Override
+    protected void afterLoad() {
+        JNIDecorationsWindows.init();
+    }
+
     @Override
     final protected Class<?> getLoaderClass() {
         return WindowsLibrary.class;