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PORead specific key from another application textbox
 

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  1. PORead specific key from another application textbox
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    <p>I need to know when the enter key is pressed on a specific textbox in another application. I'm able to find the textbox and write/read text from it using the user32.dll. But how do I get one specific key?</p> <p>The application is just a chat. The goal is to when I type on this application textbox something like '/time' and hit enter I want my application to read this command and output the current time, for exemple.</p> <p>Here is the code I have to retrieve the handle of the application and its textfield child and writing/reading it.</p> <pre><code> [DllImport("user32.dll")] public static extern int SendMessage(IntPtr hWnd, int uMsg, IntPtr wParam, string lParam); [DllImport("user32.dll")] public static extern int SendMessage(IntPtr hWnd, int msg, int Param, System.Text.StringBuilder text); [DllImport("user32.dll")] private static extern IntPtr PostMessage(IntPtr hWnd, uint Msg, IntPtr wParam, IntPtr lParam); public delegate bool Win32Callback(IntPtr hwnd, IntPtr lParam); [DllImport("user32.Dll")] public static extern bool EnumChildWindows(IntPtr parentHandle, Win32Callback callback, IntPtr lParam); [DllImport("user32.dll")] static extern int GetClassName(IntPtr hWnd, StringBuilder lpClassName, int nMaxCount); [DllImport("user32.dll")] public static extern IntPtr FindWindow(string strClassName, string strWindowName); private IntPtr handle = IntPtr.Zero; private string childClassName = "TComboEdit"; public bool findChildHandle(IntPtr hwnd, IntPtr lParam) { StringBuilder className = new StringBuilder(); GetClassName(hwnd, className, 120); if (className.ToString() == childClassName) { handle = hwnd; return false; } return true; } private void findControl(string className, string title) { IntPtr application = IntPtr.Zero; application = FindWindow(className, title); if (application == IntPtr.Zero) MessageBox.Show("Aplicativo não encontrado"); else EnumChildWindows(application, findChildHandle, IntPtr.Zero); } private void setTextToHandle(string msg) { SendMessage(handle, 0x000c, IntPtr.Zero, msg); //set text PostMessage(handle, 0x0100, new IntPtr(0x0D), IntPtr.Zero); // key down (enter) } private void getTextFromHandle() { StringBuilder t = new StringBuilder(); SendMessage(handle, 0x0D, 100, t); //get text MessageBox.Show(t.ToString()); } </code></pre>
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    1. PTQuestion
    1. USLucas Marçal Dos Santos
    1. USLucas Marçal Dos Santos
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    1. VO
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      1. PORead specific key from another application textbox
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      1. VTDownMod
    2. VO
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      1. VTUpMod
    1. COPlease don't repeat tags in titles.
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      1. PORead specific key from another application textbox
      1. USOndrej Tucny
    2. COSorry about that...
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      1. PORead specific key from another application textbox
      1. USLucas Marçal Dos Santos
    3. COYou are going to need a keyboard hook of some sort. Is that what you want? What is the other application.
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      1. PORead specific key from another application textbox
      1. USDavid Heffernan
 

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