问题
I'm trying to access a particular native Windows API call from within a node.js application. I believe that the best way to do this is to create a native extension / addon to node that I can require in my node.js application and call from the JavaScript.
Where can I find resources on how to actually compile this sort of executable? I can find instructions on how to write it, but all the build instructions seem to be for Linux. I'm fine with compiling through g++ on mingw, I don't need to use Visual Studio. Also, where do I find the header files that I need in order to compile the extension?
回答1:
I think node-ffi will help you. It's simple and it's works.
npm install ffi
var FFI = require('ffi');
function TEXT(text){
return new Buffer(text, 'ucs2').toString('binary');
}
var user32 = new FFI.Library('user32', {
'MessageBoxW': [
'int32', [ 'int32', 'string', 'string', 'int32' ]
]
});
var OK_or_Cancel = user32.MessageBoxW(
0, TEXT('I am Node.JS!'), TEXT('Hello, World!'), 1
);
回答2:
This is now out of date. Today, use nan and node-gyp to write and build native modules that work across platforms.
I've gone through this pain myself. Here's a guide that helped me get it working. (PDF) Remember that since Node is now officially supported on Windows, Visual Studio is the recommended build tool for Node on Windows.
Basically:
- Download and build the Node source code. (See PDF)
- Create a new VC++ Win32 solution in VS, selecting DLL as the application type in the wizard that follows. Make sure ATL/MFC is unchecked.
- Write your addon. As an example, here's one I wrote that gets Windows' current DNS settings. Specifically, the project's settings file (vcxproj) will be of interest since one of the toughest parts is getting all the library references/include paths set up. You might want to borrow my config and replace
D:\node\
with the location of your Node repo.
来源:https://stackoverflow.com/questions/9624536/create-a-node-js-native-extension-on-windows