From 4de20c812d8c6c56076572a11218c1f52510c1f7 Mon Sep 17 00:00:00 2001
From: Hugo Mallinson <hugo.mallinson@gmail.com>
Date: Fri, 27 Feb 2026 13:44:32 +0000
Subject: [PATCH] Added --window option to target keypresses at a specific
 window.

---
 .../Configuration/SendConfig.swift            |  4 ++-
 Sources/SendKeysLib/Sender.swift              | 28 +++++++++++++++++++
 2 files changed, 31 insertions(+), 1 deletion(-)

diff --git a/Sources/SendKeysLib/Configuration/SendConfig.swift b/Sources/SendKeysLib/Configuration/SendConfig.swift
index 829c2df..968260a 100644
--- a/Sources/SendKeysLib/Configuration/SendConfig.swift
+++ b/Sources/SendKeysLib/Configuration/SendConfig.swift
@@ -7,11 +7,12 @@ struct SendConfig: Codable {
     var remap: [String: String]?
     var targeted: Bool?
     var terminateCommand: String?
+    var window: String?
 
     init(
         activate: Bool? = nil, animationInterval: Double? = nil, delay: Double? = nil, initialDelay: Double? = nil,
         keyboardLayout: KeyMappings.Layouts? = nil, remap: [String: String]? = nil, targeted: Bool? = nil,
-        terminateCommand: String? = nil
+        terminateCommand: String? = nil, window: String? = nil
     ) {
         self.activate = activate
         self.animationInterval = animationInterval
@@ -21,6 +22,7 @@ struct SendConfig: Codable {
         self.remap = remap
         self.targeted = targeted
         self.terminateCommand = terminateCommand
+        self.window = window
     }
 
     func merge(with other: SendConfig?) -> SendConfig {
diff --git a/Sources/SendKeysLib/Sender.swift b/Sources/SendKeysLib/Sender.swift
index 4e35f14..a722955 100644
--- a/Sources/SendKeysLib/Sender.swift
+++ b/Sources/SendKeysLib/Sender.swift
@@ -17,6 +17,10 @@ public struct Sender: ParsableCommand {
         help: "Process id of a running application to send keys to.")
     var processId: Int?
 
+    @Option(
+        name: NameSpecification([.customLong("window")]), help: "Name of the window to send keystrokes to.")
+    var targetWindow: String?
+
     @Flag(
         name: .long, inversion: FlagInversion.prefixedNo,
         help: "Activate the specified app or process before sending commands.")
@@ -106,6 +110,30 @@ public struct Sender: ParsableCommand {
             if app == nil {
                 throw RuntimeError("Application could not be found.")
             }
+            if targetWindow != nil {
+                let pid = app!.processIdentifier
+                let appRef = AXUIElementCreateApplication(pid)
+                var windowList: CFTypeRef?
+                let result = AXUIElementCopyAttributeValue(appRef, kAXWindowsAttribute as CFString, &windowList)
+                guard result == .success, let windows = windowList as? [AXUIElement] else {
+                    throw RuntimeError("Failed to retrieve windows.")
+                }
+                var foundWindow: Bool = false
+                for window in windows {
+                    var title: CFTypeRef?
+                    AXUIElementCopyAttributeValue(window, kAXTitleAttribute as CFString, &title)
+
+                    if let titleString = title as? String, titleString.starts(with: targetWindow ?? "") {
+                        AXUIElementSetAttributeValue(window, kAXMainAttribute as CFString, kCFBooleanTrue)
+                        AXUIElementSetAttributeValue(window, kAXFocusedAttribute as CFString, kCFBooleanTrue)
+                        foundWindow = true
+                        break
+                    }
+                }
+                if !foundWindow {
+                    throw RuntimeError("Target window could not be found.")
+                }
+            }
             keyPresser = KeyPresser(app: app)
         } else {
             keyPresser = KeyPresser(app: nil)