JUCE/modules/juce_gui_basics/native/juce_WindowUtils_windows.cpp

/*
  ==============================================================================

   This file is part of the JUCE library.
   Copyright (c) 2022 - Raw Material Software Limited

   JUCE is an open source library subject to commercial or open-source
   licensing.

   By using JUCE, you agree to the terms of both the JUCE 7 End-User License
   Agreement and JUCE Privacy Policy.

   End User License Agreement: www.juce.com/juce-7-licence
   Privacy Policy: www.juce.com/juce-privacy-policy

   Or: You may also use this code under the terms of the GPL v3 (see
   www.gnu.org/licenses).

   JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
   EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
   DISCLAIMED.

  ==============================================================================
*/

namespace juce
{

static BOOL CALLBACK enumAlwaysOnTopWindows (HWND hwnd, LPARAM lParam)
{
    if (IsWindowVisible (hwnd))
    {
        DWORD processID = 0;
        GetWindowThreadProcessId (hwnd, &processID);

        if (processID == GetCurrentProcessId())
        {
            WINDOWINFO info{};

            if (GetWindowInfo (hwnd, &info)
                 && (info.dwExStyle & WS_EX_TOPMOST) != 0)
            {
                *reinterpret_cast<bool*> (lParam) = true;
                return FALSE;
            }
        }
    }

    return TRUE;
}

bool WindowUtils::areThereAnyAlwaysOnTopWindows()
{
    bool anyAlwaysOnTopFound = false;
    EnumWindows (&enumAlwaysOnTopWindows, (LPARAM) &anyAlwaysOnTopFound);
    return anyAlwaysOnTopFound;
}

} // namespace juce