private static string ToUnicode(KBDLLHOOKSTRUCT info)
{
string result = null;
var keyState = new byte[256];
var buffer = new StringBuilder(128);
var success = NativeMethods.GetKeyboardState(keyState);
if (!success)
{
return(string.Empty);
}
var isAltGr = IsKeyPressed(NativeMethods.VK_RMENU) && IsKeyPressed(NativeMethods.VK_LCONTROL);
if (isAltGr)
{
keyState[NativeMethods.VK_LCONTROL] = keyState[NativeMethods.VK_LALT] = 0x80;
}
var layout = GetForegroundKeyboardLayout();
var count = ToUnicode((Keys)info.KeyCode, info.ScanCode, keyState, buffer, layout);
if (count > 0)
{
result = buffer.ToString(0, count);
if (_lastDeadKey != null)
{
ToUnicode(_lastDeadKey.KeyCode,
_lastDeadKey.ScanCode,
_lastDeadKey.KeyboardState,
buffer,
layout);
_lastDeadKey = null;
}
}
else if (count < 0)
{
_lastDeadKey = new DeadKeyInfo(info, keyState);
while (count < 0)
{
count = ToUnicode(Keys.Decimal, buffer, layout);
}
}
return(result);
}
private static string ToUnicode(KeyboardLowLevelHookInfo info)
{
string result = null;
var keyState = new byte[256];
var buffer = new StringBuilder(128);
if (!NativeMethods.GetKeyboardState(keyState))
{
throw Marshal.GetExceptionForHR(Marshal.GetHRForLastWin32Error());
}
var layout = GetForegroundKeyboardLayout();
var count = ToUnicode(info.KeyCode, info.ScanCode, keyState, buffer, layout);
if (count > 0)
{
result = buffer.ToString(0, count);
if (_lastDeadKey != null)
{
ToUnicode(_lastDeadKey.KeyCode,
_lastDeadKey.ScanCode,
_lastDeadKey.KeyboardState,
buffer,
layout);
_lastDeadKey = null;
}
}
else if (count < 0)
{
_lastDeadKey = new DeadKeyInfo(info, keyState);
while (count < 0)
{
count = ToUnicode(Keys.Decimal, buffer, layout);
}
}
return(result);
}
private static string ToUnicode(KBDLLHOOKSTRUCT info)
{
string result = null;
var keyState = new byte[256];
var buffer = new StringBuilder(128);
var success = NativeMethods.GetKeyboardState(keyState);
if(!success) return string.Empty;
var isAltGr = IsKeyPressed(NativeMethods.VK_RMENU) && IsKeyPressed(NativeMethods.VK_LCONTROL);
if (isAltGr) keyState[NativeMethods.VK_LCONTROL] = keyState[NativeMethods.VK_LALT] = 0x80;
var layout = GetForegroundKeyboardLayout();
var count = ToUnicode((Keys) info.KeyCode, info.ScanCode, keyState, buffer, layout);
if (count > 0)
{
result = buffer.ToString(0, count);
if (_lastDeadKey != null)
{
ToUnicode(_lastDeadKey.KeyCode,
_lastDeadKey.ScanCode,
_lastDeadKey.KeyboardState,
buffer,
layout);
_lastDeadKey = null;
}
}
else if (count < 0)
{
_lastDeadKey = new DeadKeyInfo(info, keyState);
while (count < 0)
{
count = ToUnicode(Keys.Decimal, buffer, layout);
}
}
return result;
}
