Click here to Skip to main content
11,490,973 members (63,232 online)
Click here to Skip to main content

Tagged as

Use "dynamic" to make PInvoke simple

, 24 Apr 2010 CPOL 6.5K 3
Rate this:
Please Sign up or sign in to vote.

Use the "dynamic" key word in C# 4.0 to make PInvoke simple.
The method is introduced by Miguel de Icaza in his web blog, in the article "C#'s Dynamic in Mono". and zhongzf has some changes, added support with "return value" and "ref, out parameter".
All the source code is check in on

Using the code

dynamic user32 = new DynamicDllImport("user32.dll", callingConvention : CallingConvention.Winapi);
user32.MessageBox(0, "Hello World", "Platform Invoke Sample", 0); 

with return value.

dynamic asmproject = new DynamicDllImport("asmproject.dll");
int value = asmproject.add<int>(3, 4);

with ref, out parameter.

dynamic sdl = new DynamicDllImport("SDL.dll", CharSet.Ansi);
Sdl.SDL_Rect rect = new Sdl.SDL_Rect(
int result = sdl.SDL_FillRect<int>(rgbSurfacePtr, ref rect, 0);
Sdl.SDL_Event evt;
while (sdl.SDL_WaitEvent(out evt) != 0)
   if (evt.type == Sdl.SDL_QUIT)


This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


About the Author


China China
No Biography provided

Comments and Discussions

GeneralGood! Pin
Shawn-USA2-May-13 20:14
memberShawn-USA2-May-13 20:14 

General General    News News    Suggestion Suggestion    Question Question    Bug Bug    Answer Answer    Joke Joke    Rant Rant    Admin Admin   

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.

| Advertise | Privacy | Terms of Use | Mobile
Web04 | 2.8.150520.1 | Last Updated 24 Apr 2010
Article Copyright 2010 by zhongzf
Everything else Copyright © CodeProject, 1999-2015
Layout: fixed | fluid