using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Runtime.InteropServices;
using System.Text;
using System.Windows.Forms;
using System.Diagnostics;
 
using EARTHLib;
 
namespace map
{
    public partial class Form1 : Form
    {
        [DllImport("user32.dll")]
        private static extern int SetParent(int hWndChild, int hWndParent);
 
        [DllImport("user32.dll")]
        private static extern bool ShowWindowAsync(int hWnd, int nCmdShow);
 
        [DllImport("user32.dll", SetLastError = true)]
        private static extern bool PostMessage(int hWnd, uint Msg, int wParam, int lParam);
 
        [DllImport("user32.dll", EntryPoint = "SetWindowPos")]
        private static extern bool SetWindowPos(int hWnd, int hWndInsertAfter,
                                                       int X, int Y, int cx, int cy, uint uFlags);
 
        [DllImport("user32.dll")]
        private static extern int SendMessage(int hWnd, uint Msg, int wParam, int lParam);
 
        private const int HWND_TOP = 0x0;
        private const int WM_COMMAND = 0x0112;
        private const int WM_QT_PAINT = 0xC2DC;
        private const int WM_PAINT = 0x000F;
        private const int WM_SIZE = 0x0015;
        private const int SWP_FRAMECHANGED = 0x0020;
 
        EARTHLib.ApplicationGE ge = new ApplicationGEClass();
 
        public Form1()
        {
            InitializeComponent();
 
            ShowWindowAsync(ge.GetMainHwnd(), 0);
            SetParent(ge.GetRenderHwnd(), this.Handle.ToInt32());
            ResizeGoogleControl();
 
            ge.OpenKmlFile(@"C:\map\test.kml", 0);
        }
 
        private void Form1_Resize(object sender, EventArgs e)
        {
            ResizeGoogleControl();
        }
 
        private void ResizeGoogleControl()
        {
            SendMessage(ge.GetMainHwnd(), WM_COMMAND, WM_PAINT, 0);
            PostMessage(ge.GetMainHwnd(), WM_QT_PAINT, 0, 0);
 
            SetWindowPos(ge.GetMainHwnd(), HWND_TOP, 0, 0,
                           (int)this.Width, (int)this.Height, SWP_FRAMECHANGED);
            SendMessage(ge.GetRenderHwnd(), WM_COMMAND, WM_SIZE, 0);
        }
 
        private void Form1_Load(object sender, EventArgs e)
        {
 
        }
 
        private void Form1_FormClosing(object sender, FormClosingEventArgs e)
        {
            foreach (Process process in Process.GetProcesses())
            {
                if (process.ProcessName.StartsWith("googleearth"))
                {
                    process.Kill();
                }
            }
        }
    }
}