DaeHost.cs

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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace SeciControls
{
    public partial class DaeHost : UserControl
    {
        private string _filename;
        private bool _firstChange = true;
        private int _firstXmax = 0;
        private int _firstYmax = 0;
        private Point _sensiblePt;
        private bool _useScrollbars = false;
        private IntPtr _viHandle;
        private string _winTitle;

        public DaeHost()
        {
            InitializeComponent();
            _sensiblePt = this.PointToScreen(this.Location);
        }

        public void AddDaeVi()
        {
            Seci.Standard.Dae.ShowDae();
            Seci.Standard.Dae.SetTitleBarVisibility(false);

            //LockWindowUpdate(GetDesktopWindow());
            System.Threading.Thread.Sleep(2000);

            _filename = Seci.Definitions.Status.LabViewDir + Seci.Definitions.Status.DaeFile;
            findViHandle(_filename);
            WinApi.SetParent(_viHandle, this.panel1.Handle);
            repaintVi(_filename);
            repositionVi(_filename, 0, 0);
            int[] bounds = Seci.Managers.LabViewMgr.GetPanelBounds(_filename);
            MaximumSize = new Size(bounds[2] - bounds[0], bounds[3] - bounds[1]);
            timer1.Start();
        }

        private void bringViToFront(string filename)
        {
            Seci.Standard.Dae.ShowDae();
        }

        public void CascadeVi()
        {
            panel1.HorizontalScroll.Value = 0;
            panel1.VerticalScroll.Value = 0;
            if (!Seci.Managers.LabViewMgr.IsVIHidden(_filename))
            {
                repositionVi(_filename, 0, 0);
                bringViToFront(_filename);
            }
        }

        private void findViHandle(string viName)
        {
            string viTitle = Seci.Managers.LabViewMgr.GetFrontPanelTitle(viName);
            IntPtr viHandle = IntPtr.Zero;
            StringBuilder title = new StringBuilder(50);
            new WinApi.EnumReport().GetEnums();
            for (int i = 0; i < WinApi.EnumReport.Handles.Count; i++)
            {
                title = new StringBuilder(50);
                WinApi.GetWindowText(WinApi.EnumReport.Handles[i], title, 50);
                if (title.ToString().StartsWith(viTitle))
                {
                    string answer = title.ToString();
                    viHandle = new IntPtr(WinApi.EnumReport.Handles[i]);
                    break;
                }
            }
            _winTitle = title.ToString();
            _viHandle = viHandle;
        }

        public void RemoveDaeVi()
        {
            WinApi.SetParent(_viHandle, IntPtr.Zero);
            timer1.Stop();
        }

        private void repaintVi(string filename)
        {
            Seci.Managers.LabViewMgr.MinimiseVI(filename);
            Seci.Managers.LabViewMgr.RestoreVI(filename);
        }

        private void repositionVi(string filename, int x, int y)
        {
            Seci.Managers.LabViewMgr.RestoreVI(filename);
            Seci.Managers.LabViewMgr.SetFrontPanelBounds(filename, new int[] { x, y });
        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            if (_useScrollbars)
            {
                int Xmax = 0;
                int Ymax = 0;
                if (Seci.Managers.LabViewMgr.DoesVIExist(_filename) && !Seci.Managers.LabViewMgr.IsVIHidden(_filename))
                {
                    int[] limits = Seci.Managers.LabViewMgr.GetPanelBounds(_filename);
                    if (limits[2] > Xmax)
                    {
                        Xmax = limits[2];
                    }
                    if (limits[3] > Ymax)
                    {
                        Ymax = limits[3];
                    }
                }
                if (_firstChange)
                {
                    if ((_firstXmax == 0) && (_firstYmax == 0))
                    {
                        _firstXmax = Xmax;
                        _firstYmax = Ymax;
                    }
                    else if ((Xmax != _firstXmax) && (Ymax != _firstYmax))
                    {
                        _firstChange = false;
                        _sensiblePt = base.PointToScreen(base.Location);
                    }
                }
                else
                {
                    _sensiblePt = base.PointToScreen(base.Location);
                }
            }
            updateHandles();
        }

        private void updateHandles()
        {
            if (Seci.Managers.LabViewMgr.DoesVIExist(_filename))
            {
                StringBuilder title = new StringBuilder(50);
                WinApi.GetWindowText(_viHandle.ToInt32(), title, 50);
                if (title.ToString().Trim() != _winTitle)
                {
                    findViHandle(_filename);
                    WinApi.SetParent(_viHandle, this.panel1.Handle);
                    _winTitle = title.ToString().Trim();
                    repositionVi(_filename, 0, 0);
                    int[] bounds = Seci.Managers.LabViewMgr.GetPanelBounds(_filename);
                    MaximumSize = new Size(bounds[2] - bounds[0], bounds[3] - bounds[1]);
                    base.Size = MaximumSize;
                }
            }
        }

    }
}