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// Copyright 2011 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ui/base/fullscreen_win.h"
#include <windows.h>
#include <shellapi.h>
namespace ui {
namespace {
bool IsPlatformFullScreenMode() {
QUERY_USER_NOTIFICATION_STATE state = {};
if (FAILED(::SHQueryUserNotificationState(&state)))
return false;
return state == QUNS_RUNNING_D3D_FULL_SCREEN ||
state == QUNS_PRESENTATION_MODE;
}
bool IsFullScreenWindowMode() {
// Get the foreground window which the user is currently working on.
HWND wnd = ::GetForegroundWindow();
if (!wnd)
return false;
// Get the monitor where the window is located.
RECT wnd_rect;
if (!::GetWindowRect(wnd, &wnd_rect))
return false;
HMONITOR monitor = ::MonitorFromRect(&wnd_rect, MONITOR_DEFAULTTONULL);
if (!monitor)
return false;
MONITORINFO monitor_info = {sizeof(monitor_info)};
if (!::GetMonitorInfo(monitor, &monitor_info))
return false;
// It should be the main monitor.
if (!(monitor_info.dwFlags & MONITORINFOF_PRIMARY))
return false;
// The window should be at least as large as the monitor.
if (!::IntersectRect(&wnd_rect, &wnd_rect, &monitor_info.rcMonitor))
return false;
if (!::EqualRect(&wnd_rect, &monitor_info.rcMonitor))
return false;
// At last, the window style should not have WS_DLGFRAME and WS_THICKFRAME and
// its extended style should not have WS_EX_WINDOWEDGE and WS_EX_TOOLWINDOW.
LONG style = ::GetWindowLong(wnd, GWL_STYLE);
LONG ext_style = ::GetWindowLong(wnd, GWL_EXSTYLE);
return !((style & (WS_DLGFRAME | WS_THICKFRAME)) ||
(ext_style & (WS_EX_WINDOWEDGE | WS_EX_TOOLWINDOW)));
}
bool IsFullScreenConsoleMode() {
// We detect this by attaching the current process to the console of the
// foreground window and then checking if it is in full screen mode.
DWORD pid = 0;
::GetWindowThreadProcessId(::GetForegroundWindow(), &pid);
if (!pid)
return false;
if (!::AttachConsole(pid))
return false;
DWORD modes = 0;
::GetConsoleDisplayMode(&modes);
::FreeConsole();
return (modes & (CONSOLE_FULLSCREEN | CONSOLE_FULLSCREEN_HARDWARE)) != 0;
}
} // namespace
bool IsFullScreenMode() {
return IsPlatformFullScreenMode() || IsFullScreenWindowMode() ||
IsFullScreenConsoleMode();
}
} // namespace ui
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