qwindowsuiautomation.cpp

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// Copyright (C) 2024 The Qt Company Ltd.

// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only

// Qt-Security score:significant reason:default

#include <QtGui/qtguiglobal.h>

#if QT_CONFIG(accessibility)

#include "qwindowsuiautomation.h"

#ifndef Q_CC_MSVC

template<typename T, typename... TArg>

struct winapi_func

    using func_t = T(WINAPI*)(TArg...);

    const func_t func;

    const T error_value;

#ifdef __GNUC__

#   pragma GCC diagnostic push

#   pragma GCC diagnostic ignored "-Wcast-function-type"

#endif

    winapi_func(const char *lib_name, const char *func_name, func_t func_proto,

        T error_value = T(__HRESULT_FROM_WIN32(ERROR_PROC_NOT_FOUND))) :

        func(reinterpret_cast<func_t>(GetProcAddress(LoadLibraryA(lib_name), func_name))),

        error_value(error_value)

        std::ignore = func_proto;

#ifdef __GNUC__

#   pragma GCC diagnostic pop

#endif

    T invoke(TArg... arg)

        if (!func)

            return error_value;

        return func(arg...);

};

#define FN(fn) #fn,fn

BOOL WINAPI UiaClientsAreListening()

    static auto func = winapi_func("uiautomationcore", FN(UiaClientsAreListening), BOOL(false));

    return func.invoke();

LRESULT WINAPI UiaReturnRawElementProvider(

    HWND hwnd, WPARAM wParam, LPARAM lParam, IRawElementProviderSimple *el)

    static auto func = winapi_func("uiautomationcore", FN(UiaReturnRawElementProvider));

    return func.invoke(hwnd, wParam, lParam, el);

HRESULT WINAPI UiaHostProviderFromHwnd(HWND hwnd, IRawElementProviderSimple **ppProvider)

    static auto func = winapi_func("uiautomationcore", FN(UiaHostProviderFromHwnd));

    return func.invoke(hwnd, ppProvider);

HRESULT WINAPI UiaRaiseAutomationPropertyChangedEvent(

    IRawElementProviderSimple *pProvider, PROPERTYID id, VARIANT oldValue, VARIANT newValue)

    static auto func = winapi_func("uiautomationcore", FN(UiaRaiseAutomationPropertyChangedEvent));

    return func.invoke(pProvider, id, oldValue, newValue);

HRESULT WINAPI UiaRaiseAutomationEvent(IRawElementProviderSimple *pProvider, EVENTID id)

    static auto func = winapi_func("uiautomationcore", FN(UiaRaiseAutomationEvent));

    return func.invoke(pProvider, id);

HRESULT WINAPI UiaRaiseNotificationEvent(

    IRawElementProviderSimple *pProvider, NotificationKind notificationKind,

    NotificationProcessing notificationProcessing, BSTR displayString, BSTR activityId)

    static auto func = winapi_func("uiautomationcore", FN(UiaRaiseNotificationEvent));

    return func.invoke(pProvider, notificationKind, notificationProcessing, displayString, activityId);

#endif // !Q_CC_MSVC

#endif // QT_CONFIG(accessibility)