private IntPtr HookCallback(int nCode, IntPtr wParam, IntPtr lParam)
{
IntPtr hFocus = NativeMethods.GetForegroundWindow();
//Tracer.Dump("GFW: {0} ; hCWnd: {1}", hFocus, _hCWnd);
bool passThru = true;
// are we focused? (e.g. was this our input?)
bool global = (_hCWnd != hFocus);
if (nCode >= 0 && (wParam == (IntPtr)NativeMethods.WM_KEYDOWN))
{
try {
var keyInfo =
(KBDLLHOOKSTRUCT)Marshal.PtrToStructure(lParam, typeof(KBDLLHOOKSTRUCT));
bool shift = (NativeMethods.GetKeyState(NativeMethods.VK_SHIFT) & ~1) != 0;
bool control = (NativeMethods.GetKeyState(NativeMethods.VK_CONTROL) & ~1) != 0;
bool alt = (NativeMethods.GetKeyState(NativeMethods.VK_MENU) & ~1) != 0; // ALT
char keyChar = (char)NativeMethods.MapVirtualKey(
(uint)keyInfo.vkCode, NativeMethods.MAPVK_VK_TO_CHAR);
var consoleKeyInfo = new ConsoleKeyInfo(keyChar,
(ConsoleKey)keyInfo.vkCode, shift, alt, control);
var args = new ConsoleKeyEventArgs(consoleKeyInfo, global);
// notify any listeners
PSHotKeyManager.Instance.OnConsoleKeyDown(args);
// eat keystroke or not?
passThru = !args.Cancel;
}
catch (Exception ex) {
string message =
String.Format("HookCallback threw an exception: {0}. Disabling hook.", ex.Message);
Console.WriteLine(message);
Trace.WriteLine(message, "PSEventingKeyHandler");
// dispose/unhook/suppressfinalize
using (this) {}
}
}
if (passThru)
{
return(NativeMethods.CallNextHookEx(_hook, nCode, wParam, lParam));
}
// eat it
return(new IntPtr(1)); // non zero to eat it
//return IntPtr.Zero;
}
internal void OnConsoleKeyDown(ConsoleKeyEventArgs keyEventArgs)
{
Tracer.Dump("PSHotKeyManager.OnConsoleKeyDown (Global: {0}) {1} {2} {3}",
keyEventArgs.Global,
keyEventArgs.KeyInfo.Key,
keyEventArgs.KeyInfo.KeyChar,
keyEventArgs.KeyInfo.Modifiers);
var temp = ConsoleKeyDown;
if (temp != null)
{
temp(this, keyEventArgs);
}
}
private void OnConsoleKeyDown(Object sender, ConsoleKeyEventArgs args)
{
Tracer.Dump("HotKeyListener_{0} OnConsoleKeyDown.", _listenerId);
// if watching global or key is local, and key matches
if ((_watchGlobal || !args.Global) && (args.KeyInfo == _myHotKey))
{
if (!_passThru)
{
// eat the keystroke
args.Cancel = true;
}
Tracer.Dump("HotKeyListener_{0} HotKey triggered.", _listenerId);
// notify powershell 2.0 eventing
HotKeyInternal(this, args);
}
}
