win: allow dynamic switch dark mode

Zhao Yuhang

2023-12-22 e33059ee1ef7e1be07490ad0245676ded42589f4

 src/core/shared/qwkwindowsextra_p.h

@@ -19,6 +19,9 @@
#include <QtCore/private/qsystemlibrary_p.h>
#include <QtCore/private/qwinregistry_p.h>

#include <QtGui/QStyleHints>
#include <QtGui/QPalette>

// Don't include this header in any header files.

namespace QWK {
@@ -146,6 +149,7 @@
            DYNAMIC_API_DECLARE(DwmGetWindowAttribute);
            DYNAMIC_API_DECLARE(DwmSetWindowAttribute);
            DYNAMIC_API_DECLARE(DwmExtendFrameIntoClientArea);
            DYNAMIC_API_DECLARE(DwmEnableBlurBehindWindow);
            DYNAMIC_API_DECLARE(GetDpiForWindow);
            DYNAMIC_API_DECLARE(GetSystemMetricsForDpi);
            DYNAMIC_API_DECLARE(GetDpiForMonitor);
@@ -177,6 +181,7 @@
                DYNAMIC_API_RESOLVE(dwmapi, DwmGetWindowAttribute);
                DYNAMIC_API_RESOLVE(dwmapi, DwmSetWindowAttribute);
                DYNAMIC_API_RESOLVE(dwmapi, DwmExtendFrameIntoClientArea);
                DYNAMIC_API_RESOLVE(dwmapi, DwmEnableBlurBehindWindow);

                QSystemLibrary winmm(QStringLiteral("winmm"));
                DYNAMIC_API_RESOLVE(winmm, timeGetDevCaps);
@@ -288,6 +293,11 @@
        return result;
    }

    static inline bool isWin101809OrGreater() {
        static const bool result = IsWindows101809OrGreater_Real();
        return result;
    }

    static inline bool isWin11OrGreater() {
        static const bool result = IsWindows11OrGreater_Real();
        return result;
@@ -322,6 +332,13 @@
        return value.first;
    }

    static inline bool isHighContrastModeEnabled() {
        HIGHCONTRASTW hc{};
        hc.cbSize = sizeof(hc);
        ::SystemParametersInfoW(SPI_GETHIGHCONTRAST, sizeof(hc), &hc, FALSE);
        return (hc.dwFlags & HCF_HIGHCONTRASTON);
    }

    static inline bool isDarkThemeActive() {
#if QT_VERSION >= QT_VERSION_CHECK(6, 5, 0)
        return QGuiApplication::styleHints()->colorScheme() == Qt::ColorScheme::Dark;