It looks like the class name: "OSKMainClass"
Here is the code I used for this. This is just a C # Forms App
[DllImport("User32.dll")] public static extern Int32 SetForegroundWindow(int hWnd); [DllImport("user32.dll")] public static extern int FindWindow(string lpClassName, string lpWindowName); [DllImport("user32.dll")] public static extern int GetClassName(int hWnd, StringBuilder lpClassName, int nMaxCount); public Form1() { InitializeComponent(); } private void button1_Click(object sender, EventArgs e) { int hWnd = FindWindow(null, "On-Screen Keyboard"); StringBuilder buffer = new StringBuilder(128); GetClassName(hWnd, buffer, buffer.Capacity); MessageBox.Show(buffer.ToString()); }
Get it from the following sources Activate any window using the API and GetClassName MSDN Function
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