Add base to the repository.

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@8 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 116 insertions, 0 deletions

diff --git a/base/win_util.h b/base/win_util.h
new file mode 100644
index 0000000..9efb245
--- /dev/null
+++ b/base/win_util.h
@@ -0,0 +1,116 @@
+// Copyright 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef BASE_WIN_UTIL_H__
+#define BASE_WIN_UTIL_H__
+
+#include <windows.h>
+#include <aclapi.h>
+
+#include <string>
+
+namespace win_util {
+
+// NOTE: Keep these in order so callers can do things like
+// "if (GetWinVersion() > WINVERSION_2000) ...".  It's OK to change the values,
+// though.
+enum WinVersion {
+  WINVERSION_PRE_2000 = 0,  // Not supported
+  WINVERSION_2000 = 1,
+  WINVERSION_XP = 2,
+  WINVERSION_SERVER_2003 = 3,
+  WINVERSION_VISTA = 4,
+};
+
+void GetNonClientMetrics(NONCLIENTMETRICS* metrics);
+
+// Returns the running version of Windows.
+WinVersion GetWinVersion();
+
+// Adds an ACE in the DACL of the object referenced by handle. The ACE is
+// granting |access| to the user |known_sid|.
+// If |known_sid| is WinSelfSid, the sid of the current user will be added to
+// the DACL.
+bool AddAccessToKernelObject(HANDLE handle, WELL_KNOWN_SID_TYPE known_sid,
+                             ACCESS_MASK access);
+
+// Returns the string representing the current user sid.
+bool GetUserSidString(std::wstring* user_sid);
+
+// Creates a security descriptor with a DACL that has one ace giving full
+// access to the current logon session.
+// The security descriptor returned must be freed using LocalFree.
+// The function returns true if it succeeds, false otherwise.
+bool GetLogonSessionOnlyDACL(SECURITY_DESCRIPTOR** security_descriptor);
+
+// Useful for subclassing a HWND.  Returns the previous window procedure.
+WNDPROC SetWindowProc(HWND hwnd, WNDPROC wndproc);
+
+// Subclasses a window, replacing its existing window procedure with the
+// specified one. Returns true if the current window procedure was replaced,
+// false if the window has already been subclassed with the specified
+// subclass procedure.
+bool Subclass(HWND window, WNDPROC subclass_proc);
+
+// Unsubclasses a window subclassed using Subclass. Returns true if
+// the window was subclassed with the specified |subclass_proc| and the window
+// was successfully unsubclassed, false if the window's window procedure is not
+// |subclass_proc|.
+bool Unsubclass(HWND window, WNDPROC subclass_proc);
+
+// Retrieves the original WNDPROC of a window subclassed using
+// SubclassWindow.
+WNDPROC GetSuperclassWNDPROC(HWND window);
+
+// Pointer-friendly wrappers around Get/SetWindowLong(..., GWLP_USERDATA, ...)
+// Returns the previously set value.
+void* SetWindowUserData(HWND hwnd, void* user_data);
+void* GetWindowUserData(HWND hwnd);
+
+// Returns true if the shift key is currently pressed.
+bool IsShiftPressed();
+
+// Returns true if the ctrl key is currently pressed.
+bool IsCtrlPressed();
+
+// Returns true if the alt key is currently pressed.
+bool IsAltPressed();
+
+// A version of the GetClassNameW API that returns the class name in an
+// std::wstring.  An empty result indicates a failure to get the class name.
+std::wstring GetClassName(HWND window);
+
+// Returns false if the computer is running Vista and the user account control
+// is disabled. Returns true if user account control is enabled or the machine
+// is not running vista.
+bool UserAccountControlIsEnabled();
+
+}  // namespace win_util
+
+#endif  // BASE_WIN_UTIL_H__