win32-def

win32-def

Definitions of Windows Date Types for node-ffi

What can I do with this?

Write node-ffi calling win32 native functions code by Typescript with Types support.

Installing

npm install --save win32-def

Usage

// struct usage by ref-struct
import * as Struct from 'ref-struct'
import {DStruct as DS} from 'win32-def';


// https://msdn.microsoft.com/en-us/library/windows/desktop/dd162805(v=vs.85).aspx
const point = new Struct(DS.POINT)();
point.x = 100;
point.y = 200;
console.log(point);

import * as ref from 'ref';
import {K} from 'win32-api';
import {FModel as FM, DTypes as W} from 'win32-def';


const knl32 = K.load();
const buf  = <FM.FFIBuffer> Buffer.alloc(4);   // ← here the types

buf.writeInt32LE(12345, 0);

// const hInstance =<W.FFIBuffer> Buffer.alloc(process.arch === 'x64' ? 8 : 4);
const hInstance = <FM.FFIBuffer> ref.alloc(W.HINSTANCE);    // W.HINSTANCE is 'int64*' under x64, 'int32*' under ia32
knl32.GetModuleHandleExW(0, null, hInstance);

Relevant

• Windows Api documentation
• Windows Data Types
• System Error Codes
• FFI doc

License

MIT

Languages

• English
• 中文

Changelog

22.4.0 (2024-06-28)

Features

• win32-api: /util/ MessageBox() (dc2e3d6)
• win32-api: user32 MessageBoxExW() (435a07c)