internal static DelegateType GetFunctionDelegate <DelegateType>(SafeLibraryHandle library, string methodName)
{
IntPtr method = Private.GetProcAddress(library, methodName);
if (method == IntPtr.Zero)
{
int error = Marshal.GetLastWin32Error();
throw GetIoExceptionForError(error, methodName);
}
return((DelegateType)(object)Marshal.GetDelegateForFunctionPointer(method, typeof(DelegateType)));
}
unsafe internal static string LoadString(SafeLibraryHandle library, int identifier)
{
// Passing 0 will give us a read only handle to the string resource
char *buffer;
int result = Private.LoadStringW(library, identifier, out buffer, 0);
if (result <= 0)
{
int error = Marshal.GetLastWin32Error();
throw GetIoExceptionForError(error, identifier.ToString());
}
// Null is not included in the result
return(new string(buffer, 0, result));
}
internal static extern IntPtr GetProcAddress(
SafeLibraryHandle hModule,
[MarshalAs(UnmanagedType.LPStr)] string methodName);
//[DllImport("ntdll.dll", SetLastError = true)]
//public static extern uint NtQueryObject(IntPtr handle, ObjectInformationClass objectInformationClass,
// IntPtr objectInformation, uint objectInformationLength, out uint returnLength);
internal static bool FreeLibrary(SafeLibraryHandle handle)
{
return(Private.FreeLibrary(handle.DangerousGetHandle()));
}
unsafe internal static extern int LoadStringW(
SafeLibraryHandle hInstance,
int uID,
out char *lpBuffer,
int nBufferMax);