private void prov_KeyUp(object sender, KeyHookEventArgs e)
{
}
private int MainHookProc(int nCode, Int32 wParam, IntPtr lParam)
{
if ((nCode >= HC_ACTION) && ((wParam == WM_KEYDOWN) || (wParam == WM_SYSKEYDOWN)))
{
// Cast : structure pour obtenir les données du hook clavier.
KBDLLHOOKSTRUCT hookStruct;
hookStruct = (KBDLLHOOKSTRUCT)Marshal.PtrToStructure(lParam, typeof(KBDLLHOOKSTRUCT));
// On récupère le code de touche.
Keys keyCode = (Keys)hookStruct.vkCode;
// On récupère l'état du clavier. Nécessaire pour ensuite obtenir le caractère ASCII.
byte[] keyStates = new byte[255];
GetKeyboardState(keyStates);
StringBuilder sbChar = new StringBuilder();
ToAscii((uint)hookStruct.vkCode, (uint)hookStruct.scanCode, keyStates, sbChar, (uint)hookStruct.flags);
char keyChar;
if (sbChar.Length > 0)
{
keyChar = sbChar[0];
}
else
{
keyChar = ' ';
}
// On récupère l'état de chaque touche spéciale (Control, Alt, Shift et Windows)
if (hookStruct.vkCode == 0x5B)
{
leftWin = true;
}
if (hookStruct.vkCode == 0x5C)
{
rightWin = true;
}
if (hookStruct.vkCode == 0xA0)
{
leftShift = true;
}
if (hookStruct.vkCode == 0xA1)
{
rightShift = true;
}
if (hookStruct.vkCode == 0xA2)
{
leftCtrl = true;
}
if (hookStruct.vkCode == 0xA3)
{
rightCtrl = true;
}
if (hookStruct.vkCode == 0xA4)
{
alt = true;
}
if (hookStruct.vkCode == 0xA5)
{
altCar = true;
}
if (hookStruct.vkCode == 0x1B)
{
escape = true;
}
if (hookStruct.vkCode == 0x5D)
{
apps = true;
}
if (hookStruct.vkCode == 0x09)
{
tab = true;
}
// On crée l'évènement.
KeyHookEventArgs args = new KeyHookEventArgs(keyCode, keyChar, alt, altCar, leftCtrl, rightCtrl, leftShift, rightShift, leftWin, rightWin, escape, apps, tab);
EventHandler <KeyHookEventArgs> keyDown = KeyDown;
// Vérifier si il y a au moins un délégué qui écoute l'évènement.
// Sinon, ça déclenche une erreur si on lance l'évènement dans le vide.
if (keyDown != null)
{
keyDown(this, args); // Lancer l'évènement.
}
bool a = alt || altCar;
bool c = rightCtrl || leftCtrl;
if ((a) && (c) && (hookStruct.vkCode == 0x2E)) //Cas spécial ALT+CTRL+SUPP
{
Program.LogFich.Error("[KBHookProvider] MainHookProc() - SAISIE CTRL + ALT + SUPPR");
Uri url = new Uri(SandBox.Properties.Settings.Default.urlApplication.ToString() + "/admin/ctrl_alt_suppr.asp");
StringBuilder sb = new StringBuilder();
sb.Append("machine=").Append(HttpUtility.UrlEncode(Functions.getHost(), Encoding.ASCII));
sb.Append("&typeError=").Append(HttpUtility.UrlEncode("-15", Encoding.ASCII));
byte[] postBytes = Encoding.ASCII.GetBytes(sb.ToString());
webBrowser.Navigate(url, "", postBytes, "Content-Type: application/x-www-form-urlencoded");
MessageBox.Show("Saisie du ctrl+alt+suppr détectée");
webBrowser.GoBack();
return(block);
}
else if (alt && tab) //ALT + TAB
{
return(CallNextHookEx(hHook, nCode, wParam, lParam));
}
else if ((leftShift && (hookStruct.vkCode == 0x79)) || apps) //Shift + F10 ou Apps
{
return(block);
}
else if (leftWin || rightWin || escape || alt)
{
return(block);
}
else
{
return(CallNextHookEx(hHook, nCode, wParam, lParam));
}
}
if ((nCode >= HC_ACTION) && ((wParam == WM_KEYUP) || (wParam == WM_SYSKEYUP)))
{
// Cast : structure pour obtenir les données du hook clavier.
KBDLLHOOKSTRUCT hookStruct;
hookStruct = (KBDLLHOOKSTRUCT)Marshal.PtrToStructure(lParam, typeof(KBDLLHOOKSTRUCT));
// On récupère le code de touche.
byte keyCode = (byte)hookStruct.vkCode;
// obtenir le caractère ASCII.
byte[] keyStates = new byte[255];
GetKeyboardState(keyStates);
StringBuilder sbChar = new StringBuilder();
ToAscii((uint)hookStruct.vkCode, (uint)hookStruct.scanCode, keyStates, sbChar, (uint)hookStruct.flags);
char keyChar;
if (sbChar.Length > 0)
{
keyChar = sbChar[0];
}
else
{
keyChar = ' ';
}
if (keyCode == 0x5B)
{
leftWin = false;
}
if (keyCode == 0x5C)
{
rightWin = false;
}
if (keyCode == 0xA0)
{
leftShift = false;
}
if (keyCode == 0xA1)
{
rightShift = false;
}
if (keyCode == 0xA2)
{
leftCtrl = false;
}
if (keyCode == 0xA3)
{
rightCtrl = false;
}
if (keyCode == 0xA4)
{
alt = false;
}
if (keyCode == 0xA5)
{
altCar = false;
}
if (keyCode == 0x1B)
{
escape = false;
}
if (keyCode == 0x5D)
{
apps = false;
}
if (keyCode == 0x09)
{
tab = false;
}
KeyHookEventArgs args = new KeyHookEventArgs((Keys)keyCode, keyChar, alt, altCar, leftCtrl, rightCtrl, leftShift, rightShift, leftWin, rightWin, escape, apps, tab);
EventHandler <KeyHookEventArgs> keyup = KeyUp;
if (keyup != null)
{
keyup(this, args);
}
bool a = alt || altCar;
bool c = rightCtrl || leftCtrl;
if ((a) && (c) && (hookStruct.vkCode == 0x2E)) //Cas spécial ALT+CTRL+SUPP
{
return(block);
}
if (alt && tab) //ALT + TAB
{
return(CallNextHookEx(hHook, nCode, wParam, lParam));
}
if ((leftShift && (hookStruct.vkCode == 0x79)) || apps) //Shift + F10 ou Apps
{
return(block);
}
if (leftWin || rightWin || escape || alt)
{
return(block);
}
else
{
return(CallNextHookEx(hHook, nCode, wParam, lParam));
}
}
else
{
return(CallNextHookEx(hHook, nCode, wParam, lParam));
}
}