Docking/UI/UIMemoryViewer.cs

//#define DISABLE_GETFIRSTNONZEROBYTE_ONUPDATE_ACCEPTEDPROCESS // when defined will not call GetFirstNonZeroByte() when AcceptedProcess is updated and is not null
#define DISABLE_GETFIRSTNONZERO_BYTE // when defined will make GetFirstNonZeroByte() an empty void method
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;
using Be.Windows.Forms;
using RomCheater.Logging;
using RomCheater.PluginFramework.Interfaces;
using System.Diagnostics;
using Sojaner.MemoryScanner.MemoryProviers;
using System.Runtime.InteropServices;
using RomCheater.PluginFramework.Events;
using Sojaner.MemoryScanner;

namespace RomCheater.Docking.UI
{
    public partial class UIMemoryViewer : UserControl,
        IAcceptsPlugin<IConfigPlugin>,
        IAcceptsProcess<Process>,
        IAcceptsProcessAndConfig,
        IAcceptsMemoryRange,
        IBrowseMemoryRegion,
        IAcceptPEData
    {

        public delegate void SetTextDelegate(string text);
        public void SetAsciiData(string text)
        {
            if (txtAscii.InvokeRequired)
            {
                SetTextDelegate std = new SetTextDelegate(SetAsciiData);
                txtAscii.Invoke(std, text);
                return;
            }
            txtAscii.Text = text;
        }

        public UIMemoryViewer()
        {
            InitializeComponent();
            SetStyle(ControlStyles.UserPaint, true);
            SetStyle(ControlStyles.DoubleBuffer, true);
            SetStyle(ControlStyles.AllPaintingInWmPaint, true);
            SetStyle(ControlStyles.ResizeRedraw, true);

            //this.OnPCSX2ProcessCallback = new UIEvents.PCSX2ProcessCallback(this.PCSX2ProcessCallback);
            //if (this.OnPCSX2ProcessCallback != null) { this.OnPCSX2ProcessCallback.Invoke(out procdata); }
            this.UpdateEnabled = false;
            txtData.BytesPerLine = (int)max_address_width;
            txtData.UseFixedBytesPerLine = true;
            //txtData.StringViewVisible = true;
            ramScroll.Minimum = (int)MemoryRangeStart;
            for (int i = MemoryRangeStart; i < (MemoryRangeStart + max_ram_view); i += max_address_width) { ramScroll.Maximum += (int)max_address_width; }
            ramScroll.Value = ramScroll.Minimum;
            this.CanChangeUpdateInterval = false;


            lblAddressMarker.Text = "";
            for (uint i = 0; i < max_address_width; i++)
            {
                lblAddressMarker.Text = lblAddressMarker.Text + string.Format("{0:X2} ", i);
            }
            this.AcceptedPlugin = null; this.AcceptedProcess = null;

            txtAddresses.MouseWheel += new MouseEventHandler(txtAddresses_MouseWheel);
            txtData.MouseWheel += new MouseEventHandler(txtData_MouseWheel);
        }

        private void GetFirstNonZeroByte()
        {
#if !DISABLE_GETFIRSTNONZERO_BYTE
            if (!DesignMode)
            {
                GenericMemoryProvider provider = new GenericMemoryProvider((IAcceptsProcessAndConfig)this);
                provider.OpenProvider();
                int addr = 0;
                provider.ReadFirstNonZeroByte(MemoryRangeStart, MemoryRangeSize, out addr);
                provider.CloseProvider();
                GotoAddress(addr);
            }
#else
            this.GotoImageBase();
#endif
        }
        #region IBrowseMemoryRegion
        public bool BrowseMemoryRegion(int MemoryRegion)
        {
            try
            {
                if (!((MemoryRangeStart <= MemoryRegion) && (MemoryRegion <= (MemoryRangeStart + MemoryRangeSize)))) { return false; }
                GotoAddress(MemoryRegion);
                return true;
            }
            catch (Exception ex)
            {
                logger.Error.WriteLine("UIMemoryViewer.BrowseMemoryRegion(int MemoryRegion): Failed to Browse Memory Region: 0x{0:x8}", MemoryRegion);
                logger.Error.WriteLine(ex.ToString());
                return false;
            }
        }
        #endregion
        #region  IAcceptsProcess<Process> Members
        private Process _AcceptedProcess;
        public Process AcceptedProcess
        {
            get { return _AcceptedProcess; }
            set
            {
                _AcceptedProcess = value;
                update_timer.Enabled = (value != null);
                UpdateEnabled = update_timer.Enabled;
#if !DISABLE_GETFIRSTNONZEROBYTE_ONUPDATE_ACCEPTEDPROCESS
                if (value != null)
                    GetFirstNonZeroByte();
#endif
            }
        }
        #endregion
        #region IAcceptsPlugin<IConfigPlugin> Members
        public IConfigPlugin AcceptedPlugin { get; set; }
        #endregion
        #region IAcceptsMemoryRange members
        public int MemoryRangeStart { get { return MemorySizeConstants.MinimumAddress; } set { } }
        public uint MemoryRangeSize { get { if (MemoryRangeStart > 0) { return (uint)(MemorySizeConstants.MaximumAddress - MemoryRangeStart); } return MemorySizeConstants.MaximumAddress; } set { } }
        #endregion
        #region IAcceptPEData members
        private IPEDData peData { get; set; }
        public void SetPEViewerData(IPEDData peData) { this.peData = peData; }
        #endregion
        public void GotoTop() { this.CURRENT_TOP_ADDR = 0; }
        public void GotoBottom() { uint size = (uint)MemoryRangeSize; this.CURRENT_TOP_ADDR = (int)((size - 1) - max_ram_view); }
        public void GotoAddress(int addr)
        {
            logger.VerboseDebug.WriteLine("UIMemoryViewer::GotoAddress(0x{0:x8})", addr);
            this.CURRENT_TOP_ADDR = (int)(addr & 0xFFFFFFF0);
        }
        private bool _UpdateEnabled;
        public bool UpdateEnabled
        {
            get { return _UpdateEnabled; }
            set
            {
                _UpdateEnabled = value;
                if (value) { this.update_timer.Enabled = true; }
                else { this.update_timer.Enabled = false; }
            }
        }
        private bool _CanChangeUpdateInterval;
        public bool CanChangeUpdateInterval
        {
            get { return _CanChangeUpdateInterval; }
            set { _CanChangeUpdateInterval = value; }
        }

        public int UpdateInterval
        {
            get { return this.update_timer.Interval; }
            set { if (CanChangeUpdateInterval) this.update_timer.Interval = value; }
        }
        private string AddressList = "";
        private string AsciiData = "";
        private byte[] RamData = new byte[] { };

        const int max_address_width = 16;
        static int max_ram_view = max_address_width * 20;

        static int small_scroll_change = max_address_width * 1; // scrolls one line (when you clikc the up or down arrows)
        static int medium_scroll_change = max_ram_view / 2; // scrolls half a page
        static int large_scroll_change = max_ram_view; // scrolls a full page
        private int _CURRENT_TOP_ADDR;
        int CURRENT_TOP_ADDR
        {
            get { return _CURRENT_TOP_ADDR; }
            set { txthexGoto.Value = _CURRENT_TOP_ADDR = value; }
        }
        //uint CURRENT_BOITTOM_ADDR() { return CURRENT_TOP_ADDR + max_ram_view; }
        private void UpdateMaxRamView()
        {
            if (this.IsDisposed) return;
            Graphics g = this.CreateGraphics();
            Size size = g.MeasureString("00", txtData.Font).ToSize();
            int ByteHeight = size.Height;
            int TotalHeight = txtData.Height;
            int NumberOfBytes = (int)((TotalHeight / ByteHeight) * max_address_width) - max_address_width;
            int byte_width = (max_address_width * 2);
            max_ram_view = NumberOfBytes + (byte_width);
        }
        private void btnGotoAddress_Click(object sender, EventArgs e)
        {
            logger.VerboseDebug.WriteLine("UIMemoryViewer::btnGotoAddress_Click(0x{0:x8})", txthexGoto.ToInt32());
            this.GotoAddress(txthexGoto.ToInt32());
        }

        private void btnEditBytes_Click(object sender, EventArgs e)
        {
            byte[] data = (txtData.ByteProvider as DynamicByteProvider).Bytes.ToArray();
            logger.Info.WriteLine("UIMemoryViewer :: editing {0} bytes", data.Length);
            bool reenable = false;
            if (this.UpdateEnabled) reenable = true;
            this.UpdateEnabled = false;
            ByteEditor editor = new ByteEditor(data, this.CURRENT_TOP_ADDR);
            editor.ShowDialog();
            int changed_byte_count = 0;
            if (editor.BytesEdited)
            {

                if (editor.AsBytes.Length == data.Length)
                {

                    for (int i = 0; i < data.Length; i++)
                    {
                        if (data[i] != editor.AsBytes[i])
                            changed_byte_count++;
                    }
                }
                //DynamicByteProvider _DynamicByteProvider = new DynamicByteProvider(editor.AsBytes);
                //txtData.ByteProvider = _DynamicByteProvider;
                //_DynamicByteProvider.Changed += new EventHandler(HexResourceViewerBytes_Changed);
                this.WriteCurrentBytes(this.CURRENT_TOP_ADDR, editor.AsBytes);
            }
            logger.Info.WriteLine("UIMemoryViewer :: changed {0} bytes", changed_byte_count);
            this.UpdateEnabled = reenable;
        }
        private bool ForceUpdate = false;
        private bool ShouldUpdateResults()
        {
            //if (ResultsUpdateWorkerThread.IsBusy) { return false; }
            if (ForceUpdate) return true;
            //else if (TextIsBeingSelected) return false;
            //else if (NonHandledKeysAreBeingPressed) return false;
            else if (this.UpdateEnabled) return true;
            else { return false; }
        }
        private void UpdateGui(bool force)
        {
            if (AcceptedProcess == null) { return; }
            if (AcceptedPlugin == null) { return; }

            if (!this.ShouldUpdateResults()) { return; }// this.Logger.LogDebugMessage(string.Format("ShouldUpdateResults() -> returning false")); return; }
            this.UpdateMaxRamView();
            //if (!force)
            //{
            if (!ResultsUpdateWorkerThread.IsBusy)
                ResultsUpdateWorkerThread.RunWorkerAsync();
            //}
            //else
            //{
            //    while (!ResultsUpdateWorkerThread.IsBusy) { ResultsUpdateWorkerThread.CancelAsync(); Application.DoEvents(); }
            //    ResultsUpdateWorkerThread.RunWorkerAsync();
            //}
        }
        private void UpdateGui()
        {
            this.UpdateGui(false);
        }
        private byte[] GetMemory()
        {
            byte[] data = new byte[max_ram_view];
            try
            {
                GenericMemoryProvider provider = new GenericMemoryProvider((IAcceptsProcessAndConfig)this);
                provider.OpenProvider();
                int bytesReadSize;
                provider.ReadProcessMemory(CURRENT_TOP_ADDR, (uint)max_ram_view, out bytesReadSize, out data);
                try
                {
                    provider.CloseProvider();
                }
                catch (SEHException ex)
                {
                    logger.Error.WriteLine("UIMemoryViewer.GetMemory(): SEHException: (0x{0:x8} {1}", ex.ErrorCode, ex.Message);
                    logger.Error.WriteLine(ex.ToString());
                }
                catch (Exception ex)
                {
                    logger.Error.WriteLine("UIMemoryViewer.GetMemory(): Exception: {0}", ex.Message);
                    logger.Error.WriteLine(ex.ToString());
                }
            }
            catch (Exception ex)
            {
                logger.Error.WriteLine("{0}.GetMemory():{1}{2}", this.GetType().Name, System.Environment.NewLine, ex.ToString());
            }
            finally
            {
                if (data.Length == 0)
                {
                    data = new byte[max_ram_view];
                    for (int i = 0; i < data.Length; i++) { data[i] = 0x0; }
                }
            }
            return data;
        }
        private void UpdateMemroyView() { this.UpdateMemroyView(this.CURRENT_TOP_ADDR); }
        private void UpdateMemroyView(int address)
        {
            try
            {
                if (AcceptedProcess == null) { return; }
                if (AcceptedPlugin == null) { return; }

                byte[] data = GetMemory();
                RamData = data;
                #region old ascii-code
                try
                {
                    AddressList = "";
                    AsciiData = "";
                    // write the addreses out
                    for (int i = address; i < (address + max_ram_view); i += max_address_width)
                    {
                        AddressList = AddressList + string.Format("{0:X8}:\n", i);
                    }
                    //// write out the ascii data
                    StringBuilder builder = new StringBuilder();
                    int count = 0;
                    for (int i = 0; i < (0 + max_ram_view); i += max_address_width)
                    {
                        try
                        {
                            //bool NoAccessRegion = false;
                            //// preprocess line
                            //for (int j = 0; j < max_address_width; j++)
                            //{
                            //    byte t = data[j];
                            //    NoAccessRegion = (t == 0);
                            //}
                            for (int j = 0; j < max_address_width; j++)
                            {
                                int current_real_address = address + j +i;
                                int current_addr = i + j;
                                if (current_addr >= MemoryRangeSize) break;

                                byte ascii_value_raw = data[current_addr];
                                char ascii_value;
                                //if (ascii_value_raw == (byte)'?')
                                //{
                                //    ascii_value_raw = 0;
                                //    ascii_value = '?';
                                //    RamData[count] = 0;
                                //}
                                //else
                                //{
                                //    ascii_value = (char)data[j];
                                //}

                                if (ascii_value_raw >= 0x20 && ascii_value_raw <= 0x7e)
                                {
                                    ascii_value = (char)data[current_addr];
                                }
                                else
                                {
                                    ascii_value = '.';
                                }

                                GenericMemoryProvider gmp = new GenericMemoryProvider((IAcceptsProcessAndConfig)this);
                                gmp.OpenProvider();
                                byte t;
                                if (!gmp.ReadMemory(current_real_address, out t)) { ascii_value = '?'; }
                                gmp.CloseProvider();


                                builder.Append(ascii_value.ToString());
                            }
                            builder.AppendLine();
                        }
                        catch (Exception ex)
                        {
                            logger.Error.WriteLine("{0}.UpdateMemroyView().BuildingAsciiString:{1}{2}", this.GetType().Name, System.Environment.NewLine, ex.ToString());
                            return;
                        }
                        count++;
                    }
                    AsciiData = builder.ToString();
                }
                catch (Exception ex)
                {
                    logger.Error.WriteLine("{0}.UpdateMemroyView():{1}{2}", this.GetType().Name, System.Environment.NewLine, ex.ToString());
                    return;
                }
                #endregion
            }
            catch (Exception ex) { logger.Error.WriteLine("{0}.UpdateMemroyView():{1}{2}", this.GetType().Name, System.Environment.NewLine, ex.ToString()); }
        }
        //private void HexResourceViewerBytes_Changed(object sender, System.EventArgs e)
        //{
        //    this.WriteCurrentBytes();
        //}
        private void WriteCurrentBytes(int start_address, byte[] data)
        {
            try
            {
                if (AcceptedProcess == null) { return; }
                if (AcceptedPlugin == null) { return; }
                // Byte changed
                //byte[] data = (txtData.ByteProvider as DynamicByteProvider).Bytes.ToArray();
                GenericMemoryProvider provider = new GenericMemoryProvider((IAcceptsProcessAndConfig)this);
                provider.OpenProvider();
                int bytesReadSize;

                provider.WriteProcessMemory(start_address, data, out bytesReadSize);
                //for (int i = 0; i < data.Length; i ++)
                //{
                //    int addr = (int)(start_address + i);
                //    byte data_to_write = data[i];

                //}
                provider.CloseProvider();
            }
            catch (Exception ex) { logger.Error.WriteLine("{0}.WriteCurrentBytes():{1}{2}", this.GetType().Name, System.Environment.NewLine, ex.ToString()); }
        }

        private void update_timer_Tick(object sender, EventArgs e) { this.UpdateGui(); }
        private void ResultsUpdateWorkerThread_DoWork(object sender, DoWorkEventArgs e) { try { this.UpdateMemroyView(); } catch (Exception ex) { logger.Error.WriteLine("{0}.ResultsUpdateWorkerThread_DoWork():{1}{2}", this.GetType().Name, System.Environment.NewLine, ex.ToString()); } }
        private void ResultsUpdateWorkerThread_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
        {
            try
            {
                txtAddresses.Clear(); txtAddresses.Text = AddressList;
                txtAscii.Clear(); txtAscii.Text = AsciiData;
                //this.Logger.LogDebugMessage(string.Format("RunWorkerCompeleted() -> Memory Size: {0}0x{2:X8}{1}", "{", "}", RamData.Length));
                DynamicByteProvider _DynamicByteProvider = new DynamicByteProvider(RamData);
                txtData.ByteProvider = _DynamicByteProvider;
                //_DynamicByteProvider.Changed += new EventHandler(HexResourceViewerBytes_Changed);
            }
            catch (ObjectDisposedException) { } // ignore errors aobut disposed objects (usually only happens when the parent closes)
            catch (Exception ex) { logger.Error.WriteLine("{0}.ResultsUpdateWorkerThread_RunWorkerCompleted():{1}{2}", this.GetType().Name, System.Environment.NewLine, ex.ToString()); }
        }
        private void Handle_KeyDown(object sender, KeyEventArgs e)
        {
            //isScrolling = false;
            //bool reenable = false;
            //if (this.UpdateEnabled) reenable = true;
            //this.UpdateEnabled = false;

            this.UpdateMaxRamView();
            int ORIGINAL_ADDR = this.CURRENT_TOP_ADDR;

            ////if (e.Type == ScrollEventType.EndScroll) return;
            //uint size = max_ram_view;

            bool haveModifier = false;
            switch (e.Modifiers)
            {
                case Keys.Control:
                    switch (e.KeyCode)
                    {
                        case Keys.Home:
                            this.CURRENT_TOP_ADDR = 0; //NonHandledKeysAreBeingPressed = false; 
                            break;
                        case Keys.End:
                            this.CURRENT_TOP_ADDR = (int)((MemoryRangeSize - 1) - max_ram_view); //NonHandledKeysAreBeingPressed = false;
                            break;
                        default:
                            //NonHandledKeysAreBeingPressed = true;
                            break;
                    }
                    break;
            }

            if (!haveModifier)
            {
                switch (e.KeyCode)
                {
                    case Keys.Up:
                        if (this.CURRENT_TOP_ADDR == 0 && (this.CURRENT_TOP_ADDR - small_scroll_change > this.CURRENT_TOP_ADDR))
                        {
                            this.CURRENT_TOP_ADDR = ORIGINAL_ADDR;
                        }
                        else
                        {
                            this.CURRENT_TOP_ADDR -= (int)small_scroll_change; //NonHandledKeysAreBeingPressed = false;
                        }
                        break;
                    case Keys.Down:
                        this.CURRENT_TOP_ADDR += (int)small_scroll_change; //NonHandledKeysAreBeingPressed = false;
                        break;
                    case Keys.PageUp:
                        if (this.CURRENT_TOP_ADDR == 0 && (this.CURRENT_TOP_ADDR - large_scroll_change > this.CURRENT_TOP_ADDR))
                        {
                            this.CURRENT_TOP_ADDR = ORIGINAL_ADDR;
                        }
                        else
                        {
                            this.CURRENT_TOP_ADDR -= (int)(large_scroll_change); //NonHandledKeysAreBeingPressed = false;
                        }
                        break;
                    case Keys.PageDown:
                        this.CURRENT_TOP_ADDR += (int)(large_scroll_change); //NonHandledKeysAreBeingPressed = false;
                        break;
                    default:
                        //NonHandledKeysAreBeingPressed = true;
                        break;
                }
            }
            if (this.CURRENT_TOP_ADDR < MemoryRangeStart) this.CURRENT_TOP_ADDR = MemoryRangeStart;
            //if (this.CURRENT_TOP_ADDR >= VTLB_VADDR_SIZE) this.CURRENT_TOP_ADDR = (size - 1) - max_ram_view;
            if (this.CURRENT_TOP_ADDR + max_ram_view >= MemoryRangeSize) this.CURRENT_TOP_ADDR = (int)(MemoryRangeSize - max_ram_view);

            //this.UpdateEnabled = reenable;
        }

        private void UIMemoryViewer_KeyDown(object sender, KeyEventArgs e) { this.Handle_KeyDown(sender, e); }
        private void txtAddresses_KeyDown(object sender, KeyEventArgs e) { this.Handle_KeyDown(sender, e); }
        private void txtData_KeyDown(object sender, KeyEventArgs e) { this.Handle_KeyDown(sender, e); }

        private void ramScroll_Scroll(object sender, ScrollEventArgs e) { this.Handle_Scroll(sender, e); }

        private ScrollEventArgs GetMouseWheelScrollChange(int WheelDelta)
        {
            ScrollEventArgs args = new ScrollEventArgs(ScrollEventType.SmallIncrement, 1);
            if (WheelDelta < 0)
            {
                //// negative: scroll down
                //// SmallDecrement -or- LargeDecrement
                //if (WheelDelta <= small_scroll_change)
                //{
                //    args = new ScrollEventArgs(ScrollEventType.SmallDecrement,(int)small_scroll_change);
                //}
                //if (WheelDelta > small_scroll_change && WheelDelta <= large_scroll_change)
                //{
                //    args = new ScrollEventArgs(ScrollEventType.LargeDecrement, (int)large_scroll_change);
                //}
                args = new ScrollEventArgs(ScrollEventType.SmallIncrement, 1);
            }
            else
            {
                //// positive: scroll up
                //// SmallIncrement  -or- LargeIncrement
                //if (WheelDelta <= small_scroll_change)
                //{
                //    args = new ScrollEventArgs(ScrollEventType.SmallIncrement, (int)small_scroll_change);
                //}
                //if (WheelDelta > small_scroll_change && WheelDelta <= large_scroll_change)
                //{
                //    args = new ScrollEventArgs(ScrollEventType.LargeIncrement, (int)large_scroll_change);
                //}
                args = new ScrollEventArgs(ScrollEventType.SmallDecrement, 1);
            }
            return args;
        }

        void txtAddresses_MouseWheel(object sender, MouseEventArgs e) { this.Handle_Scroll(sender, GetMouseWheelScrollChange(e.Delta)); }
        void txtData_MouseWheel(object sender, MouseEventArgs e) { this.Handle_Scroll(sender, GetMouseWheelScrollChange(e.Delta)); }


        private void Handle_Scroll(object sender, ScrollEventArgs e)
        {
            //isScrolling = true;
            //bool reenable = false;
            //if (this.UpdateEnabled) reenable = true;
            //this.UpdateEnabled = false;

            this.UpdateMaxRamView();
            int ORIGINAL_ADDR = this.CURRENT_TOP_ADDR;
            //uint size = MemorySize;
            if (e.Type == ScrollEventType.EndScroll) return;

            switch (e.Type)
            {
                case ScrollEventType.SmallDecrement:
                    if (this.CURRENT_TOP_ADDR == 0 && ((this.CURRENT_TOP_ADDR - small_scroll_change) > this.CURRENT_TOP_ADDR))
                    {
                        this.CURRENT_TOP_ADDR = ORIGINAL_ADDR;
                    }
                    else
                    {
                        this.CURRENT_TOP_ADDR -= (small_scroll_change);
                    }
                    break;
                case ScrollEventType.SmallIncrement:
                    this.CURRENT_TOP_ADDR += (small_scroll_change);
                    break;

                case ScrollEventType.LargeDecrement:
                    if (this.CURRENT_TOP_ADDR == 0 && ((this.CURRENT_TOP_ADDR - large_scroll_change) > this.CURRENT_TOP_ADDR))
                    {
                        this.CURRENT_TOP_ADDR = ORIGINAL_ADDR;
                    }
                    else
                    {
                        this.CURRENT_TOP_ADDR -= (large_scroll_change);
                    }
                    break;
                case ScrollEventType.LargeIncrement:
                    this.CURRENT_TOP_ADDR += (large_scroll_change);
                    break;
                case ScrollEventType.ThumbPosition:
                //this.CURRENT_TOP_ADDR = (uint)e.NewValue;
                //break;
                default:
                    this.CURRENT_TOP_ADDR = (int)(e.NewValue & 0xFFFFFFF0);
                    break;
            }
            if (this.CURRENT_TOP_ADDR < 0) this.CURRENT_TOP_ADDR = 0;
            //if (this.CURRENT_TOP_ADDR >= VTLB_VADDR_SIZE) this.CURRENT_TOP_ADDR = VTLB_VADDR_SIZE - max_ram_view;
            //if (this.CURRENT_TOP_ADDR < 0 || this.CURRENT_TOP_ADDR >= VTLB_VADDR_SIZE) this.CURRENT_TOP_ADDR = ORIGINAL_ADDR;
            if (this.CURRENT_TOP_ADDR + max_ram_view >= MemoryRangeSize) this.CURRENT_TOP_ADDR = (int)(MemoryRangeSize - max_ram_view);
            //this.UpdateEnabled = reenable;
            //isScrolling = false;
        }
        private void GotoImageBase()
        {
            if (this.peData == null) return;
            object ImageBase = 0;
            bool x86 = this.peData.Is32bitAssembly();
            if (x86)
            {
                ImageBase = this.peData.NTHeader.OptionalHeader32._ImageBase;
                uint ib = Convert.ToUInt32(ImageBase);
                logger.VerboseDebug.WriteLine("UIMemoryViewer::GotoImageBase(0x{0:x8})", ib);
                txthexGoto.Value = ib;
            }
            else
            {
                ImageBase = this.peData.NTHeader.OptionalHeader64._ImageBase;
                ulong ib = Convert.ToUInt64(ImageBase);
                logger.VerboseDebug.WriteLine("UIMemoryViewer::GotoImageBase(0x{0:x16})", ib);
                txthexGoto.Value = (long)ib;
            }

            this.GotoAddress(txthexGoto.ToInt32());
        }
        private void btnGotoImageBase_Click(object sender, EventArgs e)
        {

            this.GotoImageBase();
        }

    }
}