Electron中使用Node-ffi模拟键鼠操作

PostMessageA(hWnd,WM_KEYDOWN,'A',0);

PostMessageA(hWnd,WM_SYSKEYDOWN,'A',1<<29);

SetForegroundWindow(g_OperaWnd);
keybd_event(VK_CONTROL,0,0,0);
keybd_event(65,0,0,0);
keybd_event(65,0,KEYEVENTF_KEYUP,0);
keybd_event(VK_CONTROL,0,KEYEVENTF_KEYUP,0);

SendMessageA(GetWnd(),WM_LBUTTONDOWN,NULL,MAKELPARAM(47,11));

static extern bool PostMessageW(int hwnd, int msg, uint wParam, uint lParam);

MapVirtualKeyA(0x41,0)

Function MakeKeyLparam(ByVal VirtualKey As Long, ByVal flag As Long) As Long
'参数VirtualKey表示按键虚拟码,flag表示是按下键还是释放键，用WM_KEYDOWN和WM_KEYUP这两个常数表示
Dim s As String
Dim Firstbyte As String 'lparam参数的24-31位
If flag = WM_KEYDOWN Then '如果是按下键
Firstbyte = "00"
Else
Firstbyte = "C0" '如果是释放键
End If
Dim Scancode As Long
'获得键的扫描码
Scancode = MapVirtualKey(VirtualKey, 0)
Dim Secondbyte As String 'lparam参数的16-23位，即虚拟键扫描码
Secondbyte = Right("00" & Hex(Scancode), 2)
s = Firstbyte & Secondbyte & "0001" '0001为lparam参数的0-15位，即发送次数和其它扩展信息
MakeKeyLparam = Val("&H" & s)
End Function

//10进制字符串
console.info(0x41.toString());
//16进制字符串
console.info(0x41.toString(16));
//16进制字符串转数字
console.info(parseInt("0x41"));

// flag 0按下 1释放
function makeKeyLparam(virtualKey, flag) {
    let firstbyte = "";
    let scancode = user32.MapVirtualKeyA(virtualKey, 0).toString(16);
    if (flag === 0) {
        firstbyte = "00"
    } else {
        firstbyte = "C0"
    }
    let keyLparamStr = "0x" + firstbyte + scancode + "0001";
    console.info("keyLparamStr", keyLparamStr);
    let keyLparam = parseInt(keyLparamStr);
    console.info("keyLparam", keyLparam);
    return keyLparam
}

const ffi = require('ffi');
const ref = require('ref');
const iconv = require('iconv-lite');

const voidPtr = ref.refType(ref.types.void);
const stringPtr = ref.refType(ref.types.CString);
const user32 = ffi.Library('user32.dll', {
    GetSystemMenu: ['int', ['int', 'bool']],
    EnumWindows: ['bool', [voidPtr, 'int32']],
    GetWindowTextA: ['long', ['long', stringPtr, 'long']],
    SetForegroundWindow: ['bool', ['long']],
    MapVirtualKeyA: ['long', ['long', 'long']],
    PostMessageW: ['bool', ['long', 'long', 'long', ref.types.ulong]],
    SendMessageA: ['bool', ['long', 'long', 'long', ref.types.ulong]],
    keybd_event:['bool', ['int', 'int', 'int', 'int']]
});

// flag 0按下 1释放
function makeKeyLparam(virtualKey, flag) {
    let firstbyte = "";
    let scancode = user32.MapVirtualKeyA(virtualKey, 0).toString(16);
    if (flag === 0) {
        firstbyte = "00"
    } else {
        firstbyte = "C0"
    }
    let keyLparamStr = "0x" + firstbyte + scancode + "0001";
    console.info("keyLparamStr:", keyLparamStr);
    let keyLparam = parseInt(keyLparamStr);
    return keyLparam
}

windowProc = ffi.Callback('bool', ['long', 'int32'], function (hwnd, lParam) {
    let buf, name, ret;
    buf = new Buffer(255);
    ret = user32.GetWindowTextA(hwnd, buf, 255);
    name = ref.readCString(buf, 0);
    let text = iconv.decode(buf, 'gbk');
    if (text.indexOf("ppt") !== -1) {
        console.log(text);
        console.info(hwnd.toString(16));
        console.log("");
        user32.SetForegroundWindow(hwnd);
        setTimeout(function () {
           user32.keybd_event(0x74,0,0,0);
        }, 500);
    }
    return false;
});

let lp1 = makeKeyLparam(0x74, 0);
let lp2 = makeKeyLparam(0x74, 1);
user32.PostMessageW(hwnd, 0x0100, 0x74, lp1);
setTimeout(function () {
	user32.PostMessageW(hwnd, 0x0101, 0x74, lp2);
}, 500);

user32.keybd_event(0x10,0,0,0);
user32.keybd_event(0x74,0,0,0);
user32.keybd_event(0x74,0,2,0);
user32.keybd_event(0x10,0,2,0);