diff options
| -rw-r--r-- | indra/llwindow/llwindowwin32.cpp | 82 | ||||
| -rw-r--r-- | indra/llwindow/llwindowwin32.h | 4 |
2 files changed, 86 insertions, 0 deletions
diff --git a/indra/llwindow/llwindowwin32.cpp b/indra/llwindow/llwindowwin32.cpp index af53b6fb3f..d97d6e0bb2 100644 --- a/indra/llwindow/llwindowwin32.cpp +++ b/indra/llwindow/llwindowwin32.cpp @@ -76,6 +76,11 @@ #pragma comment(lib, "dxguid.lib") // needed for llurlentry test to build on some systems #pragma comment(lib, "dinput8") +#pragma comment(lib, "UxTheme.lib") +#pragma comment(lib, "Dwmapi.lib") +#include <Uxtheme.h> +#include <dwmapi.h> // needed for DwmSetWindowAttribute to set window theme + const S32 MAX_MESSAGE_PER_UPDATE = 20; const S32 BITS_PER_PIXEL = 32; const S32 MAX_NUM_RESOLUTIONS = 32; @@ -85,6 +90,10 @@ const F32 ICON_FLASH_TIME = 0.5f; #define USER_DEFAULT_SCREEN_DPI 96 // Win7 #endif +#ifndef WM_DWMCOLORIZATIONCOLORCHANGED +#define WM_DWMCOLORIZATIONCOLORCHANGED 0x0320 +#endif + // Claim a couple unused GetMessage() message IDs const UINT WM_DUMMY_(WM_USER + 0x0017); const UINT WM_POST_FUNCTION_(WM_USER + 0x0018); @@ -137,6 +146,17 @@ typedef HRESULT(STDAPICALLTYPE *GetDpiForMonitorType)( _Out_ UINT *dpiX, _Out_ UINT *dpiY); +typedef enum PREFERRED_APP_MODE +{ + DEFAULT, + ALLOW_DARK, + FORCE_DARK, + FORCE_LIGHT, + MAX +} PREFERRED_APP_MODE; + +typedef PREFERRED_APP_MODE(WINAPI* fnSetPreferredAppMode)(PREFERRED_APP_MODE mode); + // // LLWindowWin32 // @@ -1809,6 +1829,8 @@ void LLWindowWin32::recreateWindow(RECT window_rect, DWORD dw_ex_style, DWORD dw mhDC = pair.second; sWindowHandleForMessageBox = mWindowHandle; + + updateWindowTheme(); } void* LLWindowWin32::createSharedContext() @@ -3007,6 +3029,17 @@ LRESULT CALLBACK LLWindowWin32::mainWindowProc(HWND h_wnd, UINT u_msg, WPARAM w_ WINDOW_IMP_POST(window_imp->mMouseVanish = true); } } + // Check if theme-related settings changed + else if (l_param && (wcscmp((LPCWSTR)l_param, L"ImmersiveColorSet") == 0)) + { + WINDOW_IMP_POST(window_imp->updateWindowTheme()); + } + } + break; + + case WM_DWMCOLORIZATIONCOLORCHANGED: + { + WINDOW_IMP_POST(window_imp->updateWindowTheme()); } break; @@ -4962,3 +4995,52 @@ void LLWindowWin32::updateWindowRect() }); } } + +bool LLWindowWin32::isSystemAppDarkMode() +{ + HKEY hKey; + DWORD dwValue = 1; // Default to light theme + DWORD dwSize = sizeof(DWORD); + + // Check registry for system theme preference + LSTATUS ret_code = + RegOpenKeyExW(HKEY_CURRENT_USER, L"Software\\Microsoft\\Windows\\CurrentVersion\\Themes\\Personalize", 0, KEY_READ, &hKey); + if (ERROR_SUCCESS == ret_code) + { + if (RegQueryValueExW(hKey, L"AppsUseLightTheme", NULL, NULL, (LPBYTE)&dwValue, &dwSize) != ERROR_SUCCESS) + { + // If AppsUseLightTheme is not found, check SystemUsesLightTheme + dwSize = sizeof(DWORD); + RegQueryValueExW(hKey, L"SystemUsesLightTheme", NULL, NULL, (LPBYTE)&dwValue, &dwSize); + } + RegCloseKey(hKey); + } + + // Return true if dark mode + return dwValue == 0; +} + +void LLWindowWin32::updateWindowTheme() +{ + bool use_dark_mode = isSystemAppDarkMode(); + if (use_dark_mode == mCurrentDarkMode) + { + return; + } + mCurrentDarkMode = use_dark_mode; + + HMODULE hUxTheme = LoadLibraryExW(L"uxtheme.dll", NULL, LOAD_LIBRARY_SEARCH_SYSTEM32); + if (hUxTheme) + { + auto SetPreferredAppMode = (fnSetPreferredAppMode)GetProcAddress(hUxTheme, "SetPreferredAppMode"); + if (SetPreferredAppMode) + { + SetPreferredAppMode(use_dark_mode ? ALLOW_DARK : FORCE_LIGHT); + } + FreeLibrary(hUxTheme); + } + BOOL dark_mode(use_dark_mode); + DwmSetWindowAttribute(mWindowHandle, DWMWA_USE_IMMERSIVE_DARK_MODE, &dark_mode, sizeof(dark_mode)); + + LL_INFOS("Window") << "Viewer window theme is set to " << (use_dark_mode ? "dark" : "light") << " mode" << LL_ENDL; +} diff --git a/indra/llwindow/llwindowwin32.h b/indra/llwindow/llwindowwin32.h index 561f07d388..fdaa024363 100644 --- a/indra/llwindow/llwindowwin32.h +++ b/indra/llwindow/llwindowwin32.h @@ -246,6 +246,10 @@ protected: RECT mRect; RECT mClientRect; + void updateWindowTheme(); + bool isSystemAppDarkMode(); + bool mCurrentDarkMode { false }; + struct LLWindowWin32Thread; LLWindowWin32Thread* mWindowThread = nullptr; LLThreadSafeQueue<std::function<void()>> mFunctionQueue; |