private static string GetInstallationPath(RegistryHive hive, RegistryKey rootKey)
{
OperatingSystem OS = Environment.OSVersion;
string result;
// Windows XP does not have the RegGetValue. We do not care about 64-bit XP.
if ((OS.Version.Major < 5) || ((OS.Version.Major == 5) && (OS.Version.Minor <= 1)))
{
RegistryKey key = rootKey.OpenSubKey(@"Software\Microsoft\Windows\CurrentVersion\Uninstall\winscp3_is1");
result = (key != null) ? (string)key.GetValue("Inno Setup: App Path") : null;
}
else
{
// In .NET 4 we can use RegistryKey.OpenBaseKey(hive, RegistryView.Registry32);
const string uninstallKey = @"Software\Microsoft\Windows\CurrentVersion\Uninstall\winscp3_is1";
const string appPathValue = @"Inno Setup: App Path";
result = null;
IntPtr data = IntPtr.Zero;
RegistryType type;
uint len = 0;
RegistryFlags flags = RegistryFlags.RegSz | RegistryFlags.SubKeyWow6432Key;
UIntPtr key = (UIntPtr)((uint)hive);
if (UnsafeNativeMethods.RegGetValue(key, uninstallKey, appPathValue, flags, out type, data, ref len) == 0)
{
data = Marshal.AllocHGlobal((int)len);
if (UnsafeNativeMethods.RegGetValue(key, uninstallKey, appPathValue, flags, out type, data, ref len) == 0)
{
result = Marshal.PtrToStringUni(data);
}
}
}
return(result);
}
public static extern int RegGetValue(UIntPtr hkey, string lpSubKey, string lpValue, RegistryFlags dwFlags, out RegistryType pdwType, IntPtr pvData, ref uint pcbData);
public static extern int RegRestoreKey(IntPtr hKey, string lpFile, [MarshalAs(UnmanagedType.U4)] RegistryFlags dwFlags);
/// <see cref="RegistryEntry.Flags"/>
public Builder Flags(RegistryFlags flags)
{
_entry.Flags = flags;
return(this);
}
