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