simulate ctrl+alt+delete keys in windows

[Abdul Khaliq]

Hi all

i want to simulate the ctrl + alt + delete keys

I am facing problem with this code. I able to get the reference of the "winlogon" desktop but am unable to simulate the ctrl + alt + delete keys.

can any one help please.


HDESK desktop;
ofstream myfile;

HDESK old_desktop = GetThreadDesktop(GetCurrentThreadId());
myfile.open ("c:\\desktop.txt");
// Attempt to open the named desktop
esktop = OpenDesktop("Winlogon", 0, FALSE,
DESKTOP_CREATEMENU | DESKTOP_CREATEWINDOW |
DESKTOP_ENUMERATE | DESKTOP_HOOKCONTROL |
DESKTOP_WRITEOBJECTS | DESKTOP_READOBJECTS |
DESKTOP_SWITCHDESKTOP | GENERIC_WRITE);

if(desktop!=NULL){
myfile << "desktop found.\n";
}else{
myfile << "desktop not found.\n";
}
HWND hwndCtrlAltDel = FindWindow("SAS window class", "SAS window");
if (hwndCtrlAltDel == NULL) {
myfile << "SAS window not found.\n";
hwndCtrlAltDel = HWND_BROADCAST;
}
PostMessage(hwndCtrlAltDel, WM_HOTKEY, 0, MAKELONG(MOD_ALT | MOD_CONTROL, VK_DELETE));

HWND logonwindow = FindWindow("", "Log On to Windows");
if (logonwindow == NULL) {
myfile << "logon window not found.\n";
}
myfile.close();

[loluser555]

Why not just start taskmgr.exe? I think simulating keystroke events might also work.

[Abdul Khaliq]

no i wanted to simulate the keys remotely

for this i had embedded the above code in the a service.

I send an event to the service to simulate the ctrl+alt+delete keys.

I am not able to find the SAS window I am getting NULL for the first time. Also broadcasting message to all the windows dosen't seems to work at all. I have a problem with this section of code below.

HWND hwndCtrlAltDel = FindWindow("SAS window class", "SAS window");
if (hwndCtrlAltDel == NULL) {
myfile << "SAS window not found.\n";
hwndCtrlAltDel = HWND_BROADCAST;
}
PostMessage(hwndCtrlAltDel, WM_HOTKEY, 0, MAKELONG(MOD_ALT | MOD_CONTROL, VK_DELETE));

[sicarie]

Sounds like you're trying to remotely log on to a Windows machine, is this right?