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using System;
using System.Diagnostics.Contracts;
using System.Drawing;
using System.Runtime.InteropServices;
using System.Security.Principal;
using System.Text;
using System.Windows.Forms;
using Microsoft.Win32;
using ReClassNET.Extensions;
using ReClassNET.Util;
namespace ReClassNET.Native
{
internal class NativeMethodsWindows : INativeMethods
{
#region Imports
[DllImport("kernel32.dll", ExactSpelling = true)]
private static extern bool CloseHandle(IntPtr hObject);
[DllImport("kernel32.dll", CharSet = CharSet.Unicode)]
private static extern IntPtr LoadLibrary(string lpFileName);
[DllImport("kernel32.dll", CharSet = CharSet.Ansi, ExactSpelling = true)]
private static extern IntPtr GetProcAddress(IntPtr hModule, string lpProcName);
[DllImport("kernel32.dll", ExactSpelling = true)]
private static extern bool FreeLibrary(IntPtr hModule);
private const uint SHGFI_ICON = 0x100;
private const uint SHGFI_LARGEICON = 0x0;
private const uint SHGFI_SMALLICON = 0x1;
[StructLayout(LayoutKind.Sequential)]
private struct SHFILEINFO
{
public IntPtr hIcon;
public IntPtr iIcon;
public uint dwAttributes;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 260)]
public string szDisplayName;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 80)]
public string szTypeName;
};
[StructLayout(LayoutKind.Sequential, Pack = 1)]
private struct LUID
{
public uint LowPart;
public int HighPart;
}
[StructLayout(LayoutKind.Sequential, Pack = 1)]
private struct TOKEN_PRIVILEGES
{
public uint PrivilegeCount;
public LUID Luid;
public uint Attributes;
}
[DllImport("shell32.dll")]
private static extern IntPtr SHGetFileInfo(string pszPath, int dwFileAttributes, ref SHFILEINFO psfi, int cbSizeFileInfo, uint uFlags);
[DllImport("user32.dll", ExactSpelling = true)]
private static extern int DestroyIcon(IntPtr hIcon);
[DllImport("advapi32.dll", ExactSpelling = true)]
private static extern bool OpenProcessToken(IntPtr ProcessHandle, TokenAccessLevels DesiredAccess, out IntPtr TokenHandle);
[DllImport("advapi32.dll", ExactSpelling = true)]
private static extern bool AdjustTokenPrivileges(IntPtr TokenHandle, [MarshalAs(UnmanagedType.Bool)]bool DisableAllPrivileges, ref TOKEN_PRIVILEGES NewState, uint Zero, IntPtr Null1, IntPtr Null2);
[DllImport("dbghelp.dll", CharSet = CharSet.Unicode)]
private static extern int UnDecorateSymbolName(string DecoratedName, StringBuilder UnDecoratedName, int UndecoratedLength, int Flags);
[DllImport("user32.dll")]
[return: MarshalAs(UnmanagedType.Bool)]
private static extern bool SetProcessDPIAware();
private enum ProcessDpiAwareness : uint
{
Unaware = 0,
SystemAware = 1,
PerMonitorAware = 2
}
[DllImport("shcore.dll")]
private static extern int SetProcessDpiAwareness([MarshalAs(UnmanagedType.U4)] ProcessDpiAwareness a);
[DllImport("shell32.dll")]
private static extern void SHChangeNotify(int wEventId, uint uFlags, IntPtr dwItem1, IntPtr dwItem2);
private const int SHCNE_ASSOCCHANGED = 0x08000000;
private const uint SHCNF_IDLIST = 0x0000;
[DllImport("user32.dll")]
private static extern IntPtr SendMessage(IntPtr hWnd, int nMsg, IntPtr wParam, IntPtr lParam);
private const int BCM_SETSHIELD = 0x160C;
#endregion
IntPtr INativeMethods.LoadLibrary(string fileName)
{
return LoadLibrary(fileName);
}
IntPtr INativeMethods.GetProcAddress(IntPtr handle, string name)
{
return GetProcAddress(handle, name);
}
void INativeMethods.FreeLibrary(IntPtr handle)
{
FreeLibrary(handle);
}
public Icon GetIconForFile(string path)
{
var shinfo = new SHFILEINFO();
if (!SHGetFileInfo(path, 0, ref shinfo, Marshal.SizeOf(shinfo), SHGFI_ICON | SHGFI_SMALLICON).IsNull())
{
var icon = Icon.FromHandle(shinfo.hIcon).Clone() as Icon;
DestroyIcon(shinfo.hIcon);
return icon;
}
return null;
}
public void EnableDebugPrivileges()
{
if (OpenProcessToken(System.Diagnostics.Process.GetCurrentProcess().Handle, TokenAccessLevels.AllAccess, out var token))
{
var privileges = new TOKEN_PRIVILEGES
{
PrivilegeCount = 1,
Luid =
{
LowPart = 0x14,
HighPart = 0
},
Attributes = 2
};
AdjustTokenPrivileges(token, false, ref privileges, 0, IntPtr.Zero, IntPtr.Zero);
CloseHandle(token);
}
}
public string UndecorateSymbolName(string name)
{
var sb = new StringBuilder(255);
if (UnDecorateSymbolName(name, sb, sb.Capacity, /*UNDNAME_NAME_ONLY*/0x1000) != 0)
{
return sb.ToString();
}
return name;
}
public void SetProcessDpiAwareness()
{
if (WinUtil.IsAtLeastWindows10)
{
SetProcessDpiAwareness(ProcessDpiAwareness.SystemAware);
}
else if (WinUtil.IsAtLeastWindowsVista)
{
SetProcessDPIAware();
}
}
public bool RegisterExtension(string fileExtension, string extensionId, string applicationPath, string applicationName)
{
try
{
var classesRoot = Registry.ClassesRoot;
using (var fileExtensionKey = classesRoot.CreateSubKey(fileExtension))
{
fileExtensionKey?.SetValue(string.Empty, extensionId, RegistryValueKind.String);
}
using (var extensionInfoKey = classesRoot.CreateSubKey(extensionId))
{
extensionInfoKey?.SetValue(string.Empty, applicationName, RegistryValueKind.String);
using (var icon = extensionInfoKey?.CreateSubKey("DefaultIcon"))
{
icon?.SetValue(string.Empty, "\"" + applicationPath + "\",0", RegistryValueKind.String);
}
using (var shellKey = extensionInfoKey?.CreateSubKey("shell"))
{
using (var openKey = shellKey?.CreateSubKey("open"))
{
openKey?.SetValue(string.Empty, $"&Open with {applicationName}", RegistryValueKind.String);
using (var commandKey = openKey?.CreateSubKey("command"))
{
commandKey?.SetValue(string.Empty, $"\"{applicationPath}\" \"%1\"", RegistryValueKind.String);
}
}
}
}
ShChangeNotify();
return true;
}
catch (Exception)
{
return false;
}
}
public void UnregisterExtension(string fileExtension, string extensionId)
{
try
{
var classesRoot = Registry.ClassesRoot;
classesRoot.DeleteSubKeyTree(fileExtension);
classesRoot.DeleteSubKeyTree(extensionId);
ShChangeNotify();
}
catch
{
// ignored
}
}
private static void ShChangeNotify()
{
try
{
SHChangeNotify(SHCNE_ASSOCCHANGED, SHCNF_IDLIST, IntPtr.Zero, IntPtr.Zero);
}
catch
{
// ignored
}
}
public static void SetButtonShield(Button button, bool setShield)
{
Contract.Requires(button != null);
try
{
if (button.FlatStyle != FlatStyle.System)
{
button.FlatStyle = FlatStyle.System;
}
var h = button.Handle;
if (h == IntPtr.Zero)
{
return;
}
SendMessage(h, BCM_SETSHIELD, IntPtr.Zero, (IntPtr)(setShield ? 1 : 0));
}
catch
{
// ignored
}
}
}
}