Method FindWindowByProcess

libop/window/WindowService.cpp:1722–1825

}

bool WindowService::FindWindowByProcess(const wchar_t *class_name, const wchar_t *title, HWND &rethwnd,
                                 const wchar_t *process_name, DWORD Pid) {
    bool bret = false;
    rethwnd = nullptr;
    if (process_name) {
        if (wcslen(process_name) < 1)
            return false;
        npid.clear();
        enum_process_success_count = 0;
        if (EnumProcessbyName(0, process_name) == false)
            return false;

        HWND p = ::GetWindow(GetDesktopWindow(), GW_CHILD); // 获取桌面窗口的子窗口
        p = ::GetWindow(p, GW_HWNDFIRST);
        while (p != NULL) {
            if (::IsWindowVisible(p) && ::GetWindow(p, GW_OWNER) == 0) {
                DWORD pid = 0;
                GetWindowThreadProcessId(p, &pid);
                if (EnumProcessbyName(pid, process_name)) {
                    if (wcslen(class_name) < 1 && wcslen(title) < 1) {
                        rethwnd = p;
                        bret = true;
                        break;
                    } else {
                        auto WindowClassName = WindowClassNameText(p);
                        auto WindowTitle = WindowTitleText(p);
                        if (wcslen(WindowClassName) > 1 && wcslen(WindowTitle) > 1) {
                            const wchar_t *strfindclass = wcsstr(WindowClassName, class_name); // 模糊匹配
                            const wchar_t *strfindtitle = wcsstr(WindowTitle, title);          // 模糊匹配
                            if ((wcslen(class_name) >= 1 && strfindclass) || (wcslen(title) >= 1 && strfindtitle)) {
                                rethwnd = p;
                                bret = true;
                                break;
                            }
                        }

                        HWND child_hwnd = ::GetWindow(p, GW_CHILD);
                        if (child_hwnd != NULL) {
                            const wchar_t *classname = NULL;
                            const wchar_t *titles = NULL;
                            if (wcslen(class_name) > 0)
                                classname = class_name;
                            if (wcslen(title) > 0)
                                titles = titles;
                            HWND dret = FindChildWnd(child_hwnd, titles, classname, NULL, false, false, process_name);
                            if (dret != nullptr) {
                                rethwnd = dret;
                                bret = true;
                                break;
                            }
                        }
                    }
                }
            }
            p = ::GetWindow(p, GW_HWNDNEXT); // 获取下一个窗口
        }
    } else if (Pid > 0) {
        HWND p = ::GetWindow(GetDesktopWindow(), GW_CHILD); // 获取桌面窗口的子窗口