LA/QM forum - Help (LA)

Error with send text

Tue, 21 Apr 2026 03:51:36 +0000

This is the script:

C# code:

var w = wnd.find(1, "*(mysql)").Activate();

keys.send(@"mysqlsh");



wait.s(1); //wait 1 seconds



// press enter

keys.send(@"Enter");







wait.s(5); //wait 5 seconds



// check ClusterSet Status



keys.send(@"var clusterset = dba.getClusterSet()");



wait.s(1); //wait 5 seconds



keys.send(@"clusterset.status()");



wait.s(1); //wait 5 seconds

And I got this error:

C# code:

Copy

System.ArgumentException: Error in keys string: var clusterset = dba.get■ClusterSet■()

   at line 23 in {removed).cs

   >>

   --- Raw stack trace ---

   at Au.keys.AddKeys(String keys_)

   at Au.keys.Add(KKeysEtc[] keysEtc)

   at Au.keys.send(KKeysEtc[] keysEtc)

   at Program.

$(String[] args) in (removed):line 23

I got success with mysqlsh and automated press of enter, so not sure why the next string after pressing enter got an error.

How I gave AI full control of a Windows machine using LibreAutomate

Mon, 20 Apr 2026 02:57:53 +0000

Hi everyone,
I want to share a project that started as a simple experiment and turned into something genuinely powerful. And I want to thank Gintaras — without LibreAutomate and his 20+ years of dedication, none of this would have been possible.
The goal: Give an AI (Claude) the ability to see, control, and automate a Windows desktop — not through pre-built plugins, but with true, unlimited capability.
The setup:
I have three machines working together:

A Mac running Claude as the “brain”
An Oracle Linux cloud server
A Windows Surface Pad running LibreAutomate as the “eyes and hands”

The Surface Pad sits always-on with a bore tunnel (fixed port) exposing LibreAutomate’s HTTP Server to the outside. Claude connects from the Mac through this tunnel.
How it works:
We started with the HTTP Server recipe from the LA cookbook — the one that maps URL paths to C# static methods. We added basic endpoints:

Code:
Ping

Code:
ScreenInfo

Code:
ListWindows

Code:
ClickAt

Code:
TypeText

Code:
SendKeys

Code:
RunProgram

.
But the real breakthrough came when we added a Code endpoint, using Gintaras’s

Code:
CsScript

class from this forum post. This uses Roslyn to compile and execute arbitrary C# code at runtime.
Now Claude can POST any C# code to the Surface and it gets compiled and executed instantly. The code has full access to the entire Au.dll API — all 280+ classes. That means:

Code:
wnd
— find, move, resize, close any window
Code:
elm
— read and interact with any UI element in any application
Code:
keys
/

Code:
mouse
— type text, send hotkeys, click anywhere
Code:
ocr
— read text from the screen
Code:
uiimage
— find images on screen
Code:
clipboard
— read/write clipboard
Code:
filesystem
— full file system access
Code:
process
/

Code:
run
— launch and manage programs
Code:
screen
/

Code:
CaptureScreen
— screen information and screenshots
And hundreds more…

A concrete example:
Claude sends this HTTP request:

Code:
POST http://bore.pub:14455/Code

Content-Type: text/plain

var asm = System.Reflection.Assembly.LoadFrom(@"C:\Program Files\LibreAutomate\Au.dll");

var types = asm.GetExportedTypes();

return $"Au.dll has {types.Length} public types";

And gets back:

Code:
{"success":true,"result":"Au.dll has 280 public types"}

It can query the screen:

Code:
var w = wnd.active;

return w.Name + " | " + w.Rect.ToString();

It can check disk space, list windows, click buttons, type text — anything. The AI writes C# on the fly, LibreAutomate compiles and runs it in ~100ms, and returns the result. No pre-defined tool list. No plugins. No boundaries.
Why LibreAutomate is uniquely suited for this:
I evaluated many automation tools. Nothing else comes close. Here’s why:

Depth of API — Au.dll covers four layers: Win32 API, COM, UI Automation, and keyboard/mouse simulation. If one layer can’t reach something, another can.
Full .NET ecosystem — It’s real C#, not a toy scripting language. NuGet packages, LINQ, async/await, everything works.
The HTTP Server recipe — This was the key enabler. A built-in way to expose C# functions over HTTP, with clean request/response handling.
CsScript / Roslyn integration — Runtime compilation turns LibreAutomate from a “toolbox” into a “universal execution engine.”
20 years of battle-testing — From Quick Macros to LibreAutomate, Gintaras has solved every edge case. The API is powerful yet concise. It just works.

The architecture comparison:
Many people use MCP (Model Context Protocol) to connect AI to tools. MCP defines fixed tools — you get 10 tools, you can do 10 things. Our approach is fundamentally different. We give the AI one endpoint (Code) and the entire .NET + Au.dll universe behind it. It’s like giving someone a full kitchen instead of a cookbook with 10 recipes.
What’s next:

Screenshot endpoint — so the AI can “see” the screen
File transfer — pull files from Windows back to Mac
Long-running task support — async execution with polling

Thank you, Gintaras
I want to end with genuine gratitude. Gintaras has been building automation tools since 2002. He responds to forum posts personally. He shares code like CsScript freely. LibreAutomate is free and open source. The quality of Au.dll is extraordinary — 280+ classes, each one polished and well-designed.
Without LibreAutomate, I would have had to cobble together AutoHotkey, PyAutoGUI, Windows API wrappers, and a dozen other tools — and the result would have been fragile and limited. With LibreAutomate, I got everything in one coherent package, with an HTTP server built in, and Roslyn compilation ready to go.
This project proves that LibreAutomate isn’t just a macro recorder or a simple automation tool. It’s a full operating system-level automation framework that can serve as the hands and eyes for an AI brain. That’s an incredible achievement for a tool made by one person over two decades.
Thank you, Gintaras. You made this possible.

resize a control

Wed, 15 Apr 2026 20:52:05 +0000

I know this may seem very simple, but I have been having a tough time finding a way to resize an accessible object control.
Is there a way to convert an Elm into a wnd to have to option to resize?
The only available properties of this specific control are role and @id

PostMessage to simulate mouse click

Fri, 27 Mar 2026 19:02:03 +0000

Hello,
I am attempting to simulate mouse click using PostMessage approach so that the cursor does not move.
I have been successful doing so from a local level.
However, when I attempt to create a function from global Class file global.cs, I get the following error:

System.BadImageFormatException: An attempt was made to load a program with an incorrect format. (0x8007000B)

the error is pointing to line:
ScreenToClient(Parent_hwnd,ref ControlPoint);

I am calling the function like the following:
var w = wnd.find(1, "Wind");
var e = w.Elm["STATICTEXT", "Text"].Find(1);
LeftClick(w.Handle,e.Rect.CenterX,e.Rect.CenterY);

Code:
public static uint WM_LBUTTONDOWN = 0x0201;

public static uint WM_LBUTTONUP = 0x0202;

public static void LeftClick( nint Parent_hwnd, int Control_CenterX, int Control_CenterY) {

    POINT ControlPoint = new POINT(Control_CenterX, Control_CenterY);

    Console.WriteLine($"X: {ControlPoint.x}, Y: {ControlPoint.y}");

    ScreenToClient(Parent_hwnd,ref ControlPoint);

    Console.WriteLine($"X: {ControlPoint.x}, Y: {ControlPoint.y}");

    PostMessage(Parent_hwnd, WM_LBUTTONDOWN, 1,MakeLParam(ControlPoint.x, ControlPoint.y));

    PostMessage(Parent_hwnd, WM_LBUTTONUP, 0,MakeLParam(ControlPoint.x, ControlPoint.y));

}

    [DllImport("user32.dll")]

    static extern bool PostMessage(IntPtr hWnd, uint Msg, int wParam, int lParam);

    unsafe static int MakeLParam(int x, int y) => (y << 16) | (x & 0xFFFF);

    static extern bool ScreenToClient(IntPtr hWnd, ref POINT lpPoint);

Synchronizing key LA files across multiple computers

Thu, 26 Mar 2026 10:04:03 +0000

I have several computers with LA installed. One of them is the main machine, and the others need to automatically synchronize the key LA files from the main machine whenever changes occur (excluding the nuget folder).
Several computers are on the same local area network, within the same IP address range.

Currently, I’m using a copy-and-paste approach. I’d like to implement a more elegant solution using triggers, or explore any better alternatives.

Thanks in advance for any suggestions and help.

Systray

Mon, 09 Mar 2026 19:56:01 +0000

Is it possible to add an own entry to the LA systray menu, like it is possible in QM?
Or do i have to use an own icon?

How to terminate ActionTriggers right way

Fri, 06 Mar 2026 10:22:46 +0000

Hallo,
I'm plan to use LibreAutomate-Nuget-Package inside a windows service to respond on third party windows etc. with configured ActionTriggers.
After creating the trigger functions, I'll call ActionTriggers.RunThread() infinitly. If the service itself should be terminating I currently see no option to inject a CancellationToken as it would be normally. Additionally the host machine use hybernating states and wakeup or resume later but normally never will be shutdown fully - so killing threads or creating zombies is not really a good option (also I look to prevent memory leaks).

I would therefore suggest to extend the library with following member function:
async Task ActionTrigger.ExecuteAsync(CancellationToken stoppingToken)

If there is already a way to safely cancel ActionTrigger Tasks by sending messages to thread or other solutions, I would love to know more about it.

Thanks in advance for any advice.

Intercept messages from USB auxiliary device

Wed, 25 Feb 2026 14:14:16 +0000

Hello,
I am attempting to intercept and re-configure buttons on a USB device.
My understanding is that I need to use WM_INPUT to intercept messages.
From reading online, the device first needs to be registered: https://learn.microsoft.com/en-us/window...putdevices
Then get get handle of device.
Can you please help guide me in the right direction, to first capture the button and then re-assign it my own code?
Thank so much in advance

Find Image of slightly differently scaled graphics

Wed, 18 Feb 2026 16:34:49 +0000

Hello,
I am attempting to use Find Image to locate different symbols on the screen. Some of these symbols are just slightly different than each other (scaled slightly differently) but I would like LA to treat them as the same symbol. I am been unsuccessful so far in trying to have LA locate the symbols as the same. Below is a link with 2 sets of symbols to illustrate what I am referring to. The two top and the two bottom symbols should be the same.
Thanks in advance

https://www.photo-pick.com/online/BcxO8uJ7.link

[split] Remove tray icon in LinqPad

Mon, 26 Jan 2026 07:26:30 +0000

The following code can run successfully in LINQPad 8, but after it finishes executing, the icon still remains in the system tray (bottom-right of the taskbar). I have to manually exit/close the icon before I can run it again.

Is this normal behavior?

I need the icon to no longer be displayed after the script finishes executing.

Code:
//.

script.setup(trayIcon: true, sleepExit: true);

//..

keys.send("Win+M");

for (int i = 0; i < 3; i++)

{

    using (opt.scope.all())

    { //recorded

        opt.mouse.MoveSpeed = opt.key.KeySpeed = opt.key.TextSpeed = 20;

        var w1 = wnd.find(0, "Program Manager", "Progman");

        mouse.doubleClick(w1, 50, 20);

        mouse.click(w1, 50, 20); 

        var w2 = wnd.find(10, "此电脑", "CabinetWClass");

        mouse.click(w2, 68, 164); 

        w2.WaitForName(30, "文档");

        mouse.doubleClick(w2, 235, 225); 

        w2.WaitForName(30, "leidian9");

        mouse.click(w2, 1088, 19); 

    }

}

keys.send("Win+Shift+M");

Context Menu Trigger

Sat, 17 Jan 2026 12:39:12 +0000

I want to implement a context menu trigger that appears in File Explorer. Specifically: when I select two folders and right-click, a specific menu item should be displayed. Clicking this menu item will pass the paths of the two folders as parameters to a specified LA script file.
(Note: this menu item should not be shown when only one folder is selected.)
Is there a simple and reliable way to achieve this?
Thanks in advance for any suggestions and help.

Tennis Court Booker

Tue, 25 Nov 2025 16:04:21 +0000

Hi, how are you Gintaras! RacquetDesk Login and was hoping you could help. I am sending you pm with username and passwordThe Challenge:

Court reservations are limited to one spot per person per day
All spots are released at exactly 9 AM, one week in advance
Due to high demand, it's extremely difficult to secure a booking

My Thought Process: I was considering opening multiple browser windows simultaneously before 9 AM, pre-selecting different court times to make the 'book' buttons visible, then clicking them all right at 9 AM to maximize my chances of getting at least one reservation.
Technical Question: I thought about using Playwright to help with this process since manual coordination across multiple windows is tricky, but I'm not very experienced with it. Would you be able to provide some guidance on how this might work?
What I'm Looking For: Any advice on improving my booking success rate for these highly competitive time slots would be greatly appreciated.
Thanks so much for your time!

ps: the webpage should be keeping with logged in status

1.the main view

2. the booking button when cell is clicked

3. when the spot is available

Randomly move the mouse along a curve before clicking on a control element

Mon, 03 Nov 2025 04:41:44 +0000

I want to implement a feature:
for example, I need to input three different pieces of text into Notepad in three separate steps. Before each input, the mouse pointer must click on a specific position within the Notepad window.

Note: The pointer's movement trajectory must be unique each time, not a straight line, but a curved motion.

Is this possible? Thank you in advance for any suggestions and help.

Having problems with quickly closing a macro

Fri, 17 Oct 2025 05:30:19 +0000

Im trying to learn LibreAutomate. I created small macro to spam spacebar every 20 milliseconds. I set it to toggle on hotkey press (Shift + Numpad+). It works and runs as intended, but if i run it for longer than a few seconds it takes multiple attempts to toggle it off. I'm not sure what im doing wrong here or if this is a limitation of the LibreAutomate itself?

Code:
/*/ ifRunning end; /*/

script.setup(trayIcon: true, sleepExit: true, exitKey: KKey.MediaStop, pauseKey: KKey.MediaPlayPause);

sound.speak("Toggle On");

bool toggle = false;

while (!toggle)

{

    keys.send("Space");

}

The hotkey is assigned in the "hotkey triggers" file

Code:
using Au.Triggers;

partial class Program {

    [Triggers]

    void HotkeyTriggers() {

        var hk = Triggers.Hotkey;

        //Add hotkey triggers here.

        //To add triggers can be used triggerSnippet or menu TT > New trigger.

        //To add trigger scopes (window, program) can be used Ctrl+Shift+Q.

        //Click the Run button to apply changes after editing.

        //More info in Cookbook.

        hk["Ctrl+Shift+T"] = o => Triggers.ShowTriggersListWindow();

        hk["Shift+Add"] = o => script.run(@"Game Spacebar.cs");

..........

Any help would be appreciated.

Input recorder

Fri, 26 Sep 2025 22:59:43 +0000

How do I get the input recorder to record pauses and mouse clicks? It currently isnt doing that.