private static int KeyboardHookProc(int nCode, Int32 wParam, IntPtr lParam)
{
bool handled = false;
if (nCode >= 0)
{
KeyboardHookStruct myKeyboardHookStruct = (KeyboardHookStruct)Marshal.PtrToStructure(lParam, typeof(KeyboardHookStruct));
if (SKeyDown != null && (wParam == WM_KEYDOWN || wParam == WM_SYSKEYDOWN))
{
Keys keyData = (Keys)myKeyboardHookStruct.VirtualKeyCode;
KeyEventArgs e = new KeyEventArgs(keyData);
SKeyDown.Invoke(null, e);
handled = e.Handled;
}
if (SKeyPress != null && wParam == WM_KEYDOWN)
{
bool isDownShift = ((GetKeyState(VK_SHIFT) & 0x80) == 0x80 ? true : false);
bool isDownCapslock = (GetKeyState(VK_CAPITAL) != 0 ? true : false);
byte[] keyState = new byte[256];
GetKeyboardState(keyState);
byte[] inBuffer = new byte[2];
if (ToAscii(myKeyboardHookStruct.VirtualKeyCode, myKeyboardHookStruct.ScanCode, keyState, inBuffer, myKeyboardHookStruct.Flags) == 1)
{
char key = (char)inBuffer[0];
if ((isDownCapslock ^ isDownShift) && Char.IsLetter(key))
{
key = Char.ToUpper(key);
}
KeyPressEventArgs e = new KeyPressEventArgs(key);
SKeyPress.Invoke(null, e);
handled = handled || e.Handled;
}
}
if (SKeyUp != null && (wParam == WM_KEYUP || wParam == WM_SYSKEYUP))
{
Keys keyData = (Keys)myKeyboardHookStruct.VirtualKeyCode;
KeyEventArgs e = new KeyEventArgs(keyData);
SKeyUp.Invoke(null, e);
handled = handled || e.Handled;
}
}
if (handled)
{
return(-1);
}
return(CallNextHookEx(_sKeyboardHookHandle, nCode, wParam, lParam));
}
private static int KeyboardHookProc(int nCode, int wParam, IntPtr lParam)
{
var handled = false;
if (nCode >= 0)
{
var myKeyboardHookStruct =
(WindowsApi.KeyboardHookStruct)Marshal.PtrToStructure(lParam, typeof(WindowsApi.KeyboardHookStruct));
if (SKeyPress != null && wParam == WindowsApi.WmKeydown)
{
var isDownShift = (WindowsApi.GetKeyState(WindowsApi.VkShift) & 0x80) == 0x80;
var isDownCapslock = WindowsApi.GetKeyState(WindowsApi.VkCapital) != 0;
var keyState = new byte[256];
WindowsApi.GetKeyboardState(keyState);
var inBuffer = new byte[2];
if (WindowsApi.ToAscii(myKeyboardHookStruct.VirtualKeyCode,
myKeyboardHookStruct.ScanCode,
keyState,
inBuffer,
myKeyboardHookStruct.Flags) == 1)
{
var key = (char)inBuffer[0];
if (isDownCapslock ^ isDownShift && char.IsLetter(key))
{
key = char.ToUpper(key);
}
var e = new KeyPressEventArgs(key);
try
{
SKeyPress.Invoke(null, e);
}
catch (Exception)
{
// ignored
}
handled = e.Handled;
}
}
}
if (handled)
{
return(-1);
}
return(WindowsApi.CallNextHookEx(_sKeyboardHookHandle, nCode, wParam, lParam));
}
