Windows Control
RepositoryFree** - Programmatic control over Windows system operations including mouse, keyboard, window management, and screen capture using nut.js.
Capabilities9 decomposed
programmatic mouse control with pixel-level positioning
Medium confidenceEnables absolute and relative mouse movement to specific screen coordinates with sub-pixel precision, leveraging nut.js's native Windows input simulation layer. Supports both synchronous blocking moves and asynchronous queued operations, allowing developers to script complex pointer interactions without manual GUI interaction. Integrates with Windows native input APIs to bypass application-level input filtering.
Uses nut.js's abstraction over Windows native input APIs (SendInput) rather than simulating raw hardware events, enabling reliable cross-application mouse control that respects Windows input queuing and cursor acceleration
More reliable than raw Win32 SendInput calls because nut.js handles platform-specific quirks; faster than image-recognition-based automation because it uses direct coordinate targeting rather than screen analysis
keyboard input simulation with modifier key combinations
Medium confidenceSimulates keyboard input including individual key presses, character sequences, and complex modifier combinations (Ctrl+Alt+Delete, Shift+Tab, etc.) by translating high-level key names to Windows virtual key codes and dispatching through nut.js's input layer. Supports both immediate key events and delayed sequences with configurable timing between keystrokes to accommodate application processing delays.
Abstracts Windows virtual key code mapping through nut.js, allowing developers to use human-readable key names ('enter', 'shift') instead of raw VK_ constants, with built-in support for modifier key combinations through a fluent API
More maintainable than direct Win32 keybd_event calls because key names are self-documenting; more flexible than hardcoded macro tools because sequences are programmatically composable
window enumeration and metadata retrieval
Medium confidenceDiscovers and enumerates all open Windows windows on the system, retrieving metadata including window title, process ID, window handle, position, and size through nut.js's wrapper around Windows enumeration APIs (EnumWindows, GetWindowText, GetWindowRect). Enables filtering windows by title pattern matching or process criteria to identify target windows for subsequent automation operations.
Provides a JavaScript-friendly abstraction over Windows EnumWindows API, returning structured window objects with bounds and metadata rather than raw window handles, enabling filter-and-find patterns without low-level Win32 knowledge
More efficient than polling for window changes because enumeration is a single system call; more reliable than title-based lookup in AutoHotkey because it returns structured metadata enabling multi-criteria filtering
window focus and activation control
Medium confidenceBrings a specific window to the foreground and gives it keyboard focus by calling Windows SetForegroundWindow and SetFocus APIs through nut.js, enabling subsequent keyboard and mouse input to be directed to that window. Handles window state transitions (minimized, maximized, normal) and respects Windows focus-stealing prevention policies that may delay activation.
Wraps Windows SetForegroundWindow with nut.js's event loop integration, allowing asynchronous focus operations that don't block the Node.js event loop while respecting Windows focus-stealing prevention policies
More reliable than raw SetForegroundWindow calls because nut.js handles timing and state validation; more flexible than AutoHotkey WinActivate because it integrates with async/await patterns
window resizing and repositioning
Medium confidenceModifies window position and dimensions by calling Windows MoveWindow API through nut.js, enabling programmatic control over window geometry including x/y coordinates, width, and height. Supports both absolute positioning and relative adjustments, with automatic handling of window state transitions (e.g., restoring from minimized state before resizing).
Provides high-level window positioning API that abstracts MoveWindow complexity, handling window state restoration and coordinate validation rather than requiring developers to manage window state manually
More convenient than raw MoveWindow calls because it handles state transitions automatically; more reliable than screen-position-based automation because it uses actual window geometry rather than visual detection
full-screen and region screenshot capture
Medium confidenceCaptures the entire screen or a specified rectangular region as a bitmap image using Windows GDI APIs (GetDC, CreateCompatibleDC, BitBlt) through nut.js's screenshot abstraction. Returns image data in a format compatible with image processing libraries, enabling visual validation, OCR, or image analysis workflows. Supports both synchronous capture and asynchronous operations with configurable output formats.
Abstracts Windows GDI screenshot operations through nut.js, providing a simple synchronous API for full-screen and region captures without requiring developers to manage device contexts or bitmap handles directly
Faster than external screenshot tools because it's in-process; more flexible than built-in Windows screenshot because it supports region capture and programmatic integration
mouse click simulation with button variants
Medium confidenceSimulates mouse clicks (left, right, middle, and double-click) at the current or specified cursor position by dispatching mouse button down/up events through Windows input APIs. Supports both single clicks and multi-click sequences with configurable delays between clicks, enabling interaction with UI elements that require specific click patterns (double-click to open, right-click for context menu).
Provides high-level click API that abstracts mouse button event sequencing (down/up pairs) and timing, allowing developers to specify click type and count without managing low-level input event details
More intuitive than raw mouse button events because it handles down/up sequencing automatically; more flexible than image-recognition-based clicking because it uses direct coordinate targeting
mouse scroll wheel simulation
Medium confidenceSimulates mouse wheel scrolling (vertical and horizontal) at the current or specified cursor position by dispatching scroll events through Windows input APIs. Supports configurable scroll direction, distance (in wheel notches), and speed, enabling automation of scrolling interactions in applications with scrollable content areas.
Abstracts Windows scroll wheel event generation through nut.js, allowing developers to specify scroll direction and distance in human-readable units (wheel notches) rather than raw scroll delta values
More reliable than Page Down key simulation because it targets specific UI elements; more flexible than application-specific scroll APIs because it works with any Windows application
multi-step automation sequence composition
Medium confidenceEnables chaining multiple input operations (mouse moves, clicks, keyboard input, window focus changes) into coordinated sequences with timing control between steps. Supports both synchronous blocking sequences and asynchronous promise-based composition, allowing developers to build complex automation workflows without manual delay management or callback nesting.
Integrates nut.js's input operations with Node.js async/await patterns, enabling natural composition of automation sequences without callback nesting or manual promise chaining
More maintainable than nested callbacks because it uses async/await syntax; more flexible than hardcoded macro tools because sequences are programmatically composable and reusable
Capabilities are decomposed by AI analysis. Each maps to specific user intents and improves with match feedback.
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Best For
- ✓automation engineers building Windows-specific RPA solutions
- ✓QA teams automating GUI testing for desktop applications
- ✓accessibility tool developers creating input simulation utilities
- ✓test automation engineers validating keyboard-driven workflows
- ✓RPA developers automating data entry into legacy systems
- ✓accessibility developers building keyboard-only navigation tools
- ✓RPA developers building multi-application workflows
- ✓automation engineers creating window management utilities
Known Limitations
- ⚠requires Windows OS — no cross-platform mouse control
- ⚠subject to Windows cursor acceleration settings which may affect precision
- ⚠cannot interact with elevated/admin-level windows without running process as administrator
- ⚠mouse movement is visible on screen, making it unsuitable for stealth operations
- ⚠keyboard input is application-dependent — some apps may ignore simulated input if they validate input source
- ⚠no support for non-ASCII characters without additional encoding configuration
Requirements
Input / Output
UnfragileRank
UnfragileRank is computed from adoption signals, documentation quality, ecosystem connectivity, match graph feedback, and freshness. No artifact can pay for a higher rank.
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** - Programmatic control over Windows system operations including mouse, keyboard, window management, and screen capture using nut.js.
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