//From http://stackoverflow.com/questions/221925/creating-a-byte-array-from-a-stream - very useful
public static byte[] ReadFully(IImageStream input)
{
byte[] buffer = new byte[16 * 1024];
using (MemoryStream ms = new MemoryStream())
{
int read;
while ((read = input.Read(buffer, 0, buffer.Length)) > 0)
{
ms.Write(buffer, 0, read);
}
return(ms.ToArray());
}
}
/// <inheritdoc/>
public void Read(byte[] pv, int cb, IntPtr pcbRead)
{
if (cb < 0)
{
cb = 0;
}
cb = stream.Read(pv, 0, cb);
if (pcbRead != IntPtr.Zero)
{
Marshal.WriteInt32(pcbRead, cb);
}
}
public static byte[] ReadBodyFromRva(this MethodDef method)
{
if (MethodDefExt.OriginalMD == null)
{
MethodDefExt.OriginalMD = AssemblyDef.Load(Configuration.AssemblyFilename, (ModuleCreationOptions)null).ManifestModule as ModuleDefMD;
}
IImageStream fullStream = MethodDefExt.OriginalMD.MetaData.PEImage.CreateFullStream();
FileOffset fileOffset = MethodDefExt.OriginalMD.MetaData.PEImage.ToFileOffset(method.RVA);
long num = MethodDefExt.OriginalMD.MetaData.PEImage.ToFileOffset((RVA)MethodDefExt.OriginalMD.TablesStream.ReadMethodRow(method.Rid + 1U).RVA) - fileOffset;
byte[] buffer = new byte[100];
fullStream.Position = (long)(fileOffset + 20L);
fullStream.Read(buffer, 0, buffer.Length);
return(buffer);
}
protected override void OnPaint(PaintEventArgs e)
{
EnsureFontInfo();
e.Graphics.Clear(BackColor);
if (stream != null)
{
var currentIndexBase = scrollBar.Value * 0x10L;
// https://stackoverflow.com/questions/4428335/how-to-get-the-exact-text-margins-used-by-textrenderer
var gdiHeight = TextRenderer.MeasureText(e.Graphics, "W", Font, Size.Empty).Height;
var padding = (int)Math.Ceiling(gdiHeight / 6f);
var currentX = PAD_X + padding;
var currentY = PAD_Y;
int visibleLines = (ClientSize.Height - PAD_Y * 2 - 4) / charSize.Height;
const string Header = " Offset 0 1 2 3 4 5 6 7 8 9 A B C D E F Ascii";
TextRenderer.DrawText(e.Graphics, Header, Font, new Point(currentX, currentY), HeaderColor,
TextFormatFlags.NoPadding);
currentY += charSize.Height + 2;
visibleLines -= 2;
var len = (int)Math.Min(visibleLines * 0x10, stream.Length - currentIndexBase);
byte[] data = new byte[len];
stream.Position = currentIndexBase;
stream.Read(data, 0, data.Length);
int offset = 0;
for (int i = 0; i < visibleLines; i++)
{
currentX = PAD_X + padding;
if (offset < data.Length)
{
TextRenderer.DrawText(e.Graphics, currentIndexBase.ToString("X8"), Font, new Point(currentX, currentY),
HeaderColor,
TextFormatFlags.NoPadding);
currentX += charSize.Width * 10;
PaintLine(e.Graphics, data, currentIndexBase, offset, currentX, currentY, padding);
}
currentY += charSize.Height;
currentIndexBase += 0x10;
offset += 0x10;
}
currentX = PAD_X + padding;
currentY += 4;
TextRenderer.DrawText(e.Graphics, GetStatusText(), Font, new Point(currentX, currentY), ForeColor,
TextFormatFlags.NoPadding);
var borderBounds = new Rectangle(PAD_X / 2, PAD_Y / 2, (15 + 16 * 3 + 16) * charSize.Width + PAD_X,
(visibleLines + 1) * charSize.Height + PAD_Y + 2);
ControlPaint.DrawBorder(e.Graphics, borderBounds, BorderColor, ButtonBorderStyle.Solid);
using (var pen = new Pen(BorderColor, 1)) {
var hexX = borderBounds.Left + 10 * charSize.Width;
e.Graphics.DrawLine(pen, hexX, borderBounds.Top, hexX, borderBounds.Bottom - 1);
var ascX = borderBounds.Left + (12 + 16 * 3) * charSize.Width;
e.Graphics.DrawLine(pen, ascX, borderBounds.Top, ascX, borderBounds.Bottom - 1);
var hdrY = borderBounds.Top + charSize.Height + 2;
e.Graphics.DrawLine(pen, borderBounds.Left, hdrY, borderBounds.Right - 1, hdrY);
}
}
base.OnPaint(e);
}
