// [In] Indique que les données doivent être marshalées de l'appelant vers l'appelé, mais pas à nouveau vers l'appelant. InAttribute class dans System.Runtime.InteropServices (http://msdn.microsoft.com/fr-fr/library/system.runtime.interopservices.inattribute.aspx)
private int _HookProc(int nCode, User.WM wm, [In] User.Struct.KBDLLHOOKSTRUCT kbParam)
{
if (nCode >= 0 && (HookEvent != null || gbTrace))
{
User.VK vk = Messages.GetVirtualKey((int)kbParam.vkCode);
KeystrokeMessageFlags kf = Messages.GetKeystrokeMessageFlags(kbParam.Flags);
User.Struct.GUITHREADINFO GUIThreadInfo = Win32.Windows.GetGUIThreadInfo();
uint ProcessId;
uint ThreadId = User.GetWindowThreadProcessId(GUIThreadInfo.hwndFocus, out ProcessId);
if (gbTrace)
{
string sCode;
if (nCode == User.Const.HC_ACTION)
{
sCode = "HC_ACTION";
}
else
{
sCode = nCode.ToString();
}
string sKey = vk.ToString();
pb.Trace.WriteLine("KeyboardLowLevelHook : {0,-20} {1,-20} {2:x,4} {3,-11} process {4:x} thread {5:x}", wm, sKey, kbParam.vkCode, sCode, ProcessId, ThreadId);
}
if (HookEvent != null)
{
KeyboardLowLevelHookMessage msg = new KeyboardLowLevelHookMessage()
{
nCode = nCode, kbParam = kbParam, wm = wm, vk = vk, KeyFlags = kf, GUIThreadInfo = GUIThreadInfo, ProcessId = ProcessId, ThreadId = ThreadId
};
HookEvent(msg);
if (msg.RemoveMessage)
{
return(1);
}
}
}
return(User.CallNextHookEx(gHookHandle, nCode, wm, kbParam));
}
private int _HookProc(int nCode, IntPtr wParam, IntPtr lParam)
{
if (nCode >= 0 && (HookEvent != null || gbTrace))
{
User.VK vk = Messages.GetVirtualKey((int)wParam);
KeyboardState ks = Messages.GetKeyboardState();
// attention (uint)lParam peut générer une exception si la valeur dépasse la capacité d'un int, utiliser (uint)p.ToInt64()
//KeystrokeMessageFlags kf = Messages.GetKeystrokeMessageFlags((uint)lParam);
KeystrokeMessageFlags kf = Messages.GetKeystrokeMessageFlags((uint)lParam.ToInt64());
User.Struct.GUITHREADINFO GUIThreadInfo = Win32.Windows.GetGUIThreadInfo();
if (gbTrace)
{
string sCode;
if (nCode == User.Const.HC_ACTION)
{
sCode = "HC_ACTION";
}
else if (nCode == User.Const.HC_NOREMOVE)
{
sCode = "HC_NOREMOVE";
}
else
{
sCode = nCode.ToString();
}
string sKey = vk.ToString();
if (ks.Alt)
{
sKey = "ALT-" + sKey;
}
if (ks.Ctrl)
{
sKey = "CTRL-" + sKey;
}
if (ks.Shift)
{
sKey = "SHIFT-" + sKey;
}
string sTransition;
if (kf.TransitionState == 0)
{
sTransition = "WM_KEYDOWN";
}
else
{
sTransition = "WM_KEYUP";
}
string sPreviousKeyState;
if (kf.PreviousKeyState == 0)
{
sPreviousKeyState = "KEYUP";
}
else
{
sPreviousKeyState = "KEYDOWN";
}
pb.Trace.WriteLine("KeyboardHook : {0,-20} {1,-20} {2:x,4} {3,-11} prev key state {4,-7} lParam {5:x}", sTransition, sKey, wParam, sCode, sPreviousKeyState, lParam);
}
if (HookEvent != null)
{
KeyboardHookMessage msg = new KeyboardHookMessage()
{
nCode = nCode, wParam = wParam, lParam = lParam, vk = vk, KeyState = ks, KeyFlags = kf, GUIThreadInfo = GUIThreadInfo
};
HookEvent(msg);
if (msg.RemoveMessage)
{
return(1);
}
}
}
return(User.CallNextHookEx(gHookHandle, nCode, wParam, lParam));
}
