Question: How do I get the Falconview App's window handle

How do I get the Falconview App's window handle?

Environment

FalconView Version:	FalconView 3.3.1
Interface:	IMap
Language:	Visual C++

-- Main.PatrickSimpson? - 28 Jun 2007

Answer

Here a C# method that will find your process:

using System.Diagnostics;

.
.
.
    Process FindFalconViewProcess()
    {
            //find the window handle for falconview (if available) and
            //display the result in the text box

            string fvName = "FalconView";
            Process fvProcess = null;

            Process[] processes = Process.GetProcesses();

            for (int i = 0; i < processes.Length; i++)
            {
                try
                {
                    if (processes[i].MainModule.ModuleName.Equals("fvw.exe"))
                    {
                        fvProcess = processes[i];
                    }
                }
                catch { 
                    //someone failed (probably a null somewhere),
                    //but we don't care - just move on to the next process
                }
            }

            if (fvProcess == null)
            {
                //error handling
            }
  
            return fvProcess;
    }

If you are in Process (Implementing ILayerEditor) it is easier:

   System.Diagnostics.Process process = System.Diagnostics.Process.GetCurrentProcess();

Once you have the process get the mail window handle:

   process.MainWindowHandle;

If you want to use this as the parent form (in managed code) you need to convert it to a IWin32Window. Which the following trivial class does:

    // window wrapper is a helper class that allows up to convert a window handle to a IWin32Window for use in Managed Code
    // in unmanaged C++ you would not need this
    public class WindowWrapper : System.Windows.Forms.IWin32Window
    {
        public WindowWrapper(IntPtr handle)
        {
            _hwnd = handle;
        }

        public IntPtr Handle
        {
            get { return _hwnd; }
        }

        private IntPtr _hwnd;
    }

Finally to use it:

System.Diagnostics.Process process = System.Diagnostics.Process.GetCurrentProcess();

MessageBox.Show(new WindowWrapper(new WindowWrapper(process.MainWindowHandle)), "Hello World!");