csandker-InterProcessCommunication-Samples/RPC/CPP-RPC-Client-Server/RPC-Util/Access.cpp

#include "RPC-Util.h"
#include <iostream>
#include <AclAPI.h>

BOOL EnablePriv(HANDLE hToken, LPCTSTR priv)
{
	TOKEN_PRIVILEGES tp;
	LUID luid;

	if (!LookupPrivilegeValue(NULL, priv, &luid))
	{
		printf("Priv Lookup FALSE\n");
		return FALSE;
	}

	tp.PrivilegeCount = 1;
	tp.Privileges[0].Luid = luid;
	tp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
	if (!AdjustTokenPrivileges(
		hToken,
		FALSE,
		&tp,
		sizeof(TOKEN_PRIVILEGES),
		(PTOKEN_PRIVILEGES)NULL,
		(PDWORD)NULL))
	{
		printf("Priv Adjust FALSE\n");
		return FALSE;
	}

	return TRUE;
}

void setWindowAccess() {
	DWORD error;
	wprintf(L"Gettinng current process Window...");
	HWINSTA hWinSta = GetProcessWindowStation();
	if (hWinSta) {
		wprintf(L"Success.\n");
		wprintf(L"Setting Security of current Proccess Window...");
		error = SetSecurityInfo(hWinSta,
			SE_WINDOW_OBJECT,
			DACL_SECURITY_INFORMATION,
			NULL,	// don't set the ownerSID
			NULL,	// don't set the primary GROUP
			NULL,	// DACL pointer, NULL=> full access to everyone
			NULL	// no setting SACL
		);
		if (error == ERROR_SUCCESS) wprintf(L"Success.\n");
		else wprintf(L"Error: %d.\n", error);
	}
	else wprintf(L"Error: %d.\n", GetLastError());
}

void setDesktopAccess() {
	DWORD error;
	wprintf(L"Getting current Desktop..");
	HDESK hDesk = GetThreadDesktop(GetCurrentThreadId());
	if (hDesk) {
		wprintf(L"Success\n");
		wprintf(L"Setting Security of current Desktop...");
		error = SetSecurityInfo(
			hDesk,
			SE_WINDOW_OBJECT,
			DACL_SECURITY_INFORMATION,
			NULL,	// don't set the ownerSID
			NULL,	// don't set the primary GROUP
			NULL,	// DACL pointer, NULL=> full access to everyone
			NULL	// no setting SACL
		);
		if (error == ERROR_SUCCESS) wprintf(L"Success\n");
		else wprintf(L"Error: %d\n", error);
	}
	else wprintf(L"Error: %d\n", GetLastError());
}