1 /*
2 * Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
3 *
4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree.
9 */
10
11 #include "webrtc/modules/desktop_capture/win/window_capture_utils.h"
12
13 namespace webrtc {
14
15 bool
GetCroppedWindowRect(HWND window,DesktopRect * cropped_rect,DesktopRect * original_rect)16 GetCroppedWindowRect(HWND window,
17 DesktopRect* cropped_rect,
18 DesktopRect* original_rect) {
19 RECT rect;
20 if (!GetWindowRect(window, &rect)) {
21 return false;
22 }
23 WINDOWPLACEMENT window_placement;
24 window_placement.length = sizeof(window_placement);
25 if (!GetWindowPlacement(window, &window_placement)) {
26 return false;
27 }
28
29 *original_rect = DesktopRect::MakeLTRB(
30 rect.left, rect.top, rect.right, rect.bottom);
31
32 if (window_placement.showCmd == SW_SHOWMAXIMIZED) {
33 DesktopSize border = DesktopSize(GetSystemMetrics(SM_CXSIZEFRAME),
34 GetSystemMetrics(SM_CYSIZEFRAME));
35 *cropped_rect = DesktopRect::MakeLTRB(
36 rect.left + border.width(),
37 rect.top,
38 rect.right - border.width(),
39 rect.bottom - border.height());
40 } else {
41 *cropped_rect = *original_rect;
42 }
43 return true;
44 }
45
AeroChecker()46 AeroChecker::AeroChecker() : dwmapi_library_(nullptr), func_(nullptr) {
47 // Try to load dwmapi.dll dynamically since it is not available on XP.
48 dwmapi_library_ = LoadLibrary(L"dwmapi.dll");
49 if (dwmapi_library_) {
50 func_ = reinterpret_cast<DwmIsCompositionEnabledFunc>(
51 GetProcAddress(dwmapi_library_, "DwmIsCompositionEnabled"));
52 }
53 }
54
~AeroChecker()55 AeroChecker::~AeroChecker() {
56 if (dwmapi_library_) {
57 FreeLibrary(dwmapi_library_);
58 }
59 }
60
IsAeroEnabled()61 bool AeroChecker::IsAeroEnabled() {
62 BOOL result = FALSE;
63 if (func_) {
64 func_(&result);
65 }
66 return result != FALSE;
67 }
68
69 } // namespace webrtc
70