673f7e56e4
As a library, WebRTC should not assume UNICODE and _UNICODE to be defined globally. This CL explicitly selects wide character functions and types in order to build WebRTC with /UUNICODE and /U_UNICODE. Bug: None Change-Id: Ie4e2bcb4c5c34aee6f68dc7b5b54b76f088ee3e4 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/128904 Commit-Queue: Tommi <tommi@webrtc.org> Reviewed-by: Tommi <tommi@webrtc.org> Reviewed-by: Noah Richards <noahric@chromium.org> Cr-Commit-Position: refs/heads/master@{#27313}
111 lines
3.1 KiB
C++
111 lines
3.1 KiB
C++
/*
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* Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "modules/desktop_capture/win/desktop.h"
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#include <vector>
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#include "rtc_base/logging.h"
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namespace webrtc {
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Desktop::Desktop(HDESK desktop, bool own) : desktop_(desktop), own_(own) {}
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Desktop::~Desktop() {
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if (own_ && desktop_ != NULL) {
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if (!::CloseDesktop(desktop_)) {
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RTC_LOG(LS_ERROR) << "Failed to close the owned desktop handle: "
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<< GetLastError();
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}
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}
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}
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bool Desktop::GetName(std::wstring* desktop_name_out) const {
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if (desktop_ == NULL)
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return false;
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DWORD length = 0;
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int rv = GetUserObjectInformationW(desktop_, UOI_NAME, NULL, 0, &length);
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if (rv || GetLastError() != ERROR_INSUFFICIENT_BUFFER)
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abort();
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length /= sizeof(WCHAR);
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std::vector<WCHAR> buffer(length);
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if (!GetUserObjectInformationW(desktop_, UOI_NAME, &buffer[0],
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length * sizeof(WCHAR), &length)) {
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RTC_LOG(LS_ERROR) << "Failed to query the desktop name: " << GetLastError();
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return false;
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}
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desktop_name_out->assign(&buffer[0], length / sizeof(WCHAR));
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return true;
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}
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bool Desktop::IsSame(const Desktop& other) const {
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std::wstring name;
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if (!GetName(&name))
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return false;
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std::wstring other_name;
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if (!other.GetName(&other_name))
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return false;
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return name == other_name;
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}
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bool Desktop::SetThreadDesktop() const {
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if (!::SetThreadDesktop(desktop_)) {
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RTC_LOG(LS_ERROR) << "Failed to assign the desktop to the current thread: "
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<< GetLastError();
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return false;
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}
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return true;
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}
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Desktop* Desktop::GetDesktop(const WCHAR* desktop_name) {
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ACCESS_MASK desired_access = DESKTOP_CREATEMENU | DESKTOP_CREATEWINDOW |
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DESKTOP_ENUMERATE | DESKTOP_HOOKCONTROL |
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DESKTOP_WRITEOBJECTS | DESKTOP_READOBJECTS |
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DESKTOP_SWITCHDESKTOP | GENERIC_WRITE;
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HDESK desktop = OpenDesktopW(desktop_name, 0, FALSE, desired_access);
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if (desktop == NULL) {
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RTC_LOG(LS_ERROR) << "Failed to open the desktop '" << desktop_name
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<< "': " << GetLastError();
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return NULL;
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}
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return new Desktop(desktop, true);
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}
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Desktop* Desktop::GetInputDesktop() {
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HDESK desktop = OpenInputDesktop(
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0, FALSE, GENERIC_READ | GENERIC_WRITE | GENERIC_EXECUTE);
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if (desktop == NULL)
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return NULL;
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return new Desktop(desktop, true);
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}
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Desktop* Desktop::GetThreadDesktop() {
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HDESK desktop = ::GetThreadDesktop(GetCurrentThreadId());
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if (desktop == NULL) {
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RTC_LOG(LS_ERROR)
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<< "Failed to retrieve the handle of the desktop assigned to "
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"the current thread: "
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<< GetLastError();
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return NULL;
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}
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return new Desktop(desktop, false);
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}
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} // namespace webrtc
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