63 lines
2.4 KiB
JavaScript
63 lines
2.4 KiB
JavaScript
const koffi = require('koffi');
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const user32 = koffi.load('user32.dll');
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const SetCursorPos = user32.func('bool SetCursorPos(int x, int y)');
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const mouse_event = user32.func('void mouse_event(uint32 dwFlags, uint32 dx, uint32 dy, uint32 dwData, uintptr dwExtraInfo)');
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const keybd_event = user32.func('void keybd_event(uint8 bVk, uint8 bScan, uint32 dwFlags, uintptr dwExtraInfo)');
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const GetSystemMetrics = user32.func('int GetSystemMetrics(int nIndex)');
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const MOUSEEVENTF_LEFTDOWN = 0x0002;
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const MOUSEEVENTF_LEFTUP = 0x0004;
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const MOUSEEVENTF_RIGHTDOWN = 0x0008;
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const MOUSEEVENTF_RIGHTUP = 0x0010;
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const MOUSEEVENTF_MIDDLEDOWN = 0x0020;
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const MOUSEEVENTF_MIDDLEUP = 0x0040;
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const MOUSEEVENTF_WHEEL = 0x0800;
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const KEYEVENTF_KEYUP = 0x0002;
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const VK = {
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backspace:0x08, tab:0x09, enter:0x0D, shift:0x10, control:0x11,
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alt:0x12, escape:0x1B, space:0x20, pageup:0x21, pagedown:0x22,
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end:0x23, home:0x24, left:0x25, up:0x26, right:0x27, down:0x28,
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delete:0x2E, insert:0x2D,
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f1:0x70,f2:0x71,f3:0x72,f4:0x73,f5:0x74,f6:0x75,
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f7:0x76,f8:0x77,f9:0x78,f10:0x79,f11:0x7A,f12:0x7B,
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};
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function toVk(key) {
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if (VK[key]) return VK[key];
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const c = key.toUpperCase().charCodeAt(0);
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return (c >= 0x30 && c <= 0x5A) ? c : 0;
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}
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function moveMouse(x, y) { SetCursorPos(x, y); }
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function mouseClick(btn) {
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const [dn, up] = btn === 'right' ? [MOUSEEVENTF_RIGHTDOWN, MOUSEEVENTF_RIGHTUP]
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: btn === 'middle' ? [MOUSEEVENTF_MIDDLEDOWN, MOUSEEVENTF_MIDDLEUP]
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: [MOUSEEVENTF_LEFTDOWN, MOUSEEVENTF_LEFTUP];
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mouse_event(dn, 0, 0, 0, 0);
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mouse_event(up, 0, 0, 0, 0);
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}
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function mouseToggle(state, btn) {
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const down = btn === 'right' ? MOUSEEVENTF_RIGHTDOWN : btn === 'middle' ? MOUSEEVENTF_MIDDLEDOWN : MOUSEEVENTF_LEFTDOWN;
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const up = btn === 'right' ? MOUSEEVENTF_RIGHTUP : btn === 'middle' ? MOUSEEVENTF_MIDDLEUP : MOUSEEVENTF_LEFTUP;
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mouse_event(state === 'down' ? down : up, 0, 0, 0, 0);
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}
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function scrollMouse(dx, dy) {
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if (dy) mouse_event(MOUSEEVENTF_WHEEL, 0, 0, -dy * 120, 0);
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}
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function keyToggle(key, state) {
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const vk = toVk(key);
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if (vk) keybd_event(vk, 0, state === 'up' ? KEYEVENTF_KEYUP : 0, 0);
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}
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function getScreenSize() {
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return { width: GetSystemMetrics(0), height: GetSystemMetrics(1) };
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}
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module.exports = { moveMouse, mouseClick, mouseToggle, scrollMouse, keyToggle, getScreenSize };
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