#include "windows.h" BOOL simulateAltControlDel(); void main() { simulateAltControlDel(); } BOOL simulateAltControlDel() { HDESK hdeskCurrent; HDESK hdesk; HWINSTA hwinstaCurrent; HWINSTA hwinsta; // // Save the current Window station // hwinstaCurrent = GetProcessWindowStation(); if (hwinstaCurrent == NULL) return FALSE; // // Save the current desktop // hdeskCurrent = GetThreadDesktop(GetCurrentThreadId()); if (hdeskCurrent == NULL) return FALSE; // // Obtain a handle to WinSta0 - service must be running // in the LocalSystem account // hwinsta = OpenWindowStation("winsta0", FALSE, WINSTA_ACCESSCLIPBOARD | WINSTA_ACCESSGLOBALATOMS | WINSTA_CREATEDESKTOP | WINSTA_ENUMDESKTOPS | WINSTA_ENUMERATE | WINSTA_EXITWINDOWS | WINSTA_READATTRIBUTES | WINSTA_READSCREEN | WINSTA_WRITEATTRIBUTES); if (hwinsta == NULL) return FALSE; // // Set the windowstation to be winsta0 // if (!SetProcessWindowStation(hwinsta)) return FALSE;
// // Get the default desktop on winsta0 // hdesk = OpenDesktop("Winlogon", 0, FALSE, DESKTOP_CREATEMENU | DESKTOP_CREATEWINDOW | DESKTOP_ENUMERATE | DESKTOP_HOOKCONTROL | DESKTOP_JOURNALPLAYBACK | DESKTOP_JOURNALRECORD | DESKTOP_READOBJECTS | DESKTOP_SWITCHDESKTOP | DESKTOP_WRITEOBJECTS); if (hdesk == NULL) return FALSE;
// // Set the desktop to be "default" // if (!SetThreadDesktop(hdesk)) return FALSE; PostMessage(HWND_BROADCAST,WM_HOTKEY,0,MAKELPARAM(MOD_ALT|MOD_CONTROL,VK_DELETE));
// // Reset the Window station and desktop // if (!SetProcessWindowStation(hwinstaCurrent)) return FALSE;
if (!SetThreadDesktop(hdeskCurrent)) return FALSE;
// // Close the windowstation and desktop handles // if (!CloseWindowStation(hwinsta)) return FALSE; if (!CloseDesktop(hdesk)) return FALSE; return TRUE; }
