cef/tests/cefclient/browser/temp_window_win.cc

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// Copyright (c) 2015 The Chromium Embedded Framework Authors. All rights
// reserved. Use of this source code is governed by a BSD-style license that
// can be found in the LICENSE file.
#include "tests/cefclient/browser/temp_window_win.h"
#include <windows.h>
#include "include/base/cef_logging.h"
namespace client {
namespace {
const wchar_t kWndClass[] = L"Client_TempWindow";
// Create the temp window.
HWND CreateTempWindow() {
HINSTANCE hInstance = ::GetModuleHandle(nullptr);
WNDCLASSEX wc = {0};
wc.cbSize = sizeof(wc);
wc.lpfnWndProc = DefWindowProc;
wc.hInstance = hInstance;
wc.lpszClassName = kWndClass;
RegisterClassEx(&wc);
// Create a 1x1 pixel hidden window.
return CreateWindow(kWndClass, 0, WS_OVERLAPPEDWINDOW | WS_CLIPCHILDREN, 0, 0,
1, 1, nullptr, nullptr, hInstance, nullptr);
}
TempWindowWin* g_temp_window = nullptr;
} // namespace
TempWindowWin::TempWindowWin() : hwnd_(nullptr) {
DCHECK(!g_temp_window);
g_temp_window = this;
hwnd_ = CreateTempWindow();
CHECK(hwnd_);
}
TempWindowWin::~TempWindowWin() {
g_temp_window = nullptr;
DCHECK(hwnd_);
DestroyWindow(hwnd_);
}
// static
CefWindowHandle TempWindowWin::GetWindowHandle() {
DCHECK(g_temp_window);
return g_temp_window->hwnd_;
}
} // namespace client