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How to use VirtualFreeEx method of FlaUI.Core.WindowsAPI.User32 class

Best FlaUI code snippet using FlaUI.Core.WindowsAPI.User32.VirtualFreeEx

Win32Fallback.cs

Source:Win32Fallback.cs

...266            IntPtr address2 = new IntPtr(address.ToInt64() + Marshal.SizeOf(systemtime1));267            systemtime2 = (SYSTEMTIME)Marshal.PtrToStructure(address2, typeof(SYSTEMTIME));268            // release memory269            Marshal.FreeHGlobal(address);270            User32.VirtualFreeEx(hProcess, hMem, 2 * Marshal.SizeOf(systemtime1), AllocationType.Decommit | AllocationType.Release);271            User32.CloseHandle(hProcess);272            DateTime date1;273            try274            {275                date1 = new DateTime(systemtime1.Year, systemtime1.Month, systemtime1.Day,276                    systemtime1.Hour, systemtime1.Minute, systemtime1.Second);277            }278            catch279            {280                date1 = new DateTime(systemtime1.Year, systemtime1.Month, systemtime1.Day,281                    0, 0, 0);282            }283            DateTime date2;284            try285            {286                date2 = new DateTime(systemtime2.Year, systemtime2.Month, systemtime2.Day,287                    systemtime2.Hour, systemtime2.Minute, systemtime2.Second);288            }289            catch290            {291                date2 = new DateTime(systemtime2.Year, systemtime2.Month, systemtime2.Day,292                    0, 0, 0);293            }294            return new DateTime[] { date1, date2 };295        }296        // gets the selected date from a Win32 calendar that supports single selection297        internal static DateTime GetSelectedDate(IntPtr handle)298        {299            uint procid = 0;300            User32.GetWindowThreadProcessId(handle, out procid);301            IntPtr hProcess = User32.OpenProcess(ProcessAccessFlags.All, false, (int)procid);302            if (hProcess == IntPtr.Zero)303            {304                throw new Exception("Insufficient rights");305            }306            SYSTEMTIME systemtime = new SYSTEMTIME();307            // allocate memory in the process of the calendar308            IntPtr hMem = User32.VirtualAllocEx(hProcess, IntPtr.Zero, (uint)Marshal.SizeOf(systemtime),309                AllocationType.Commit | AllocationType.Reserve, MemoryProtection.ReadWrite);310            if (hMem == IntPtr.Zero)311            {312                throw new Exception("Insufficient rights");313            }314            User32.SendMessage(handle, Win32CalendarMessages.MCM_GETCURSEL, IntPtr.Zero, hMem);315            IntPtr address = Marshal.AllocHGlobal(Marshal.SizeOf(systemtime));316            IntPtr lpNumberOfBytesRead = IntPtr.Zero;317            if (User32.ReadProcessMemory(hProcess, hMem, address, Marshal.SizeOf(systemtime), out lpNumberOfBytesRead) == false)318            {319                throw new Exception("Insufficient rights");320            }321            systemtime = (SYSTEMTIME)Marshal.PtrToStructure(address, typeof(SYSTEMTIME));322            // release memory323            Marshal.FreeHGlobal(address);324            User32.VirtualFreeEx(hProcess, hMem, Marshal.SizeOf(systemtime),325                AllocationType.Decommit | AllocationType.Release);326            User32.CloseHandle(hProcess);327            DateTime datetime;328            try329            {330                datetime = new DateTime(systemtime.Year, systemtime.Month, systemtime.Day,331                    systemtime.Hour, systemtime.Minute, systemtime.Second);332            }333            catch334            {335                datetime = new DateTime(systemtime.Year, systemtime.Month, systemtime.Day,336                    0, 0, 0);337            }338            return datetime;339        }340        internal static void SetSelectedDate(IntPtr handle, DateTime date)341        {342            if (handle == IntPtr.Zero || GetWindowClassName(handle) != "SysMonthCal32")343            {344                throw new Exception("Not supported for this type of calendar");345            }346            uint styles = User32.GetWindowLong(handle, WindowLongParam.GWL_STYLE);347            if ((styles & Win32CalendarStyles.MCS_MULTISELECT) != 0)348            {349                // multiselect calendar350                SetSelectedRange(handle, new DateTime[] { date, date });351                return;352            }353            uint procid = 0;354            User32.GetWindowThreadProcessId(handle, out procid);355            IntPtr hProcess = User32.OpenProcess(ProcessAccessFlags.All, false, (int)procid);356            if (hProcess == IntPtr.Zero)357            {358                throw new Exception("Insufficient rights");359            }360            SYSTEMTIME systemtime = new SYSTEMTIME();361            systemtime.Year = (short)date.Year;362            systemtime.Month = (short)date.Month;363            systemtime.Day = (short)date.Day;364            systemtime.DayOfWeek = (short)date.DayOfWeek;365            systemtime.Hour = (short)date.Hour;366            systemtime.Minute = (short)date.Minute;367            systemtime.Second = (short)date.Second;368            systemtime.Milliseconds = (short)date.Millisecond;369            // allocate memory in the process of the calendar370            IntPtr hMem = User32.VirtualAllocEx(hProcess, IntPtr.Zero, (uint)Marshal.SizeOf(systemtime),371                AllocationType.Commit | AllocationType.Reserve, MemoryProtection.ReadWrite);372            if (hMem == IntPtr.Zero)373            {374                throw new Exception("Insufficient rights");375            }376            IntPtr lpNumberOfBytesWritten = IntPtr.Zero;377            if (User32.WriteProcessMemory(hProcess, hMem, systemtime, Marshal.SizeOf(systemtime), out lpNumberOfBytesWritten) == false)378            {379                throw new Exception("Insufficient rights");380            }381            User32.SendMessage(handle, Win32CalendarMessages.MCM_SETCURSEL, IntPtr.Zero, hMem);382            // release memory383            User32.VirtualFreeEx(hProcess, hMem, Marshal.SizeOf(systemtime),384                AllocationType.Decommit | AllocationType.Release);385            User32.CloseHandle(hProcess);386        }387        // Selects a range in a multiple selection Win32 calendar. The range is specified by the first and the last date.388        // If the calendar is single selection then the second date will be selected.389        // The "dates" parameter should always contain two dates.390        internal static void SetSelectedRange(IntPtr handle, DateTime[] dates)391        {392            if (handle == IntPtr.Zero || GetWindowClassName(handle) != "SysMonthCal32")393            {394                throw new Exception("Not supported for this type of calendar");395            }396            if (dates.Length != 2)397            {398                throw new Exception("Dates array length must be 2");399            }400            uint styles = User32.GetWindowLong(handle, WindowLongParam.GWL_STYLE);401            if ((styles & Win32CalendarStyles.MCS_MULTISELECT) == 0)402            {403                // singleselect calendar404                SetSelectedDate(handle, dates[1]);405                return;406            }407            uint procid = 0;408            User32.GetWindowThreadProcessId(handle, out procid);409            IntPtr hProcess = User32.OpenProcess(ProcessAccessFlags.All, false, (int)procid);410            if (hProcess == IntPtr.Zero)411            {412                throw new Exception("Insufficient rights");413            }414            SYSTEMTIME systemtime1 = new SYSTEMTIME();415            systemtime1.Year = (short)dates[0].Year;416            systemtime1.Month = (short)dates[0].Month;417            systemtime1.Day = (short)dates[0].Day;418            systemtime1.DayOfWeek = (short)dates[0].DayOfWeek;419            systemtime1.Hour = (short)dates[0].Hour;420            systemtime1.Minute = (short)dates[0].Minute;421            systemtime1.Second = (short)dates[0].Second;422            systemtime1.Milliseconds = (short)dates[0].Millisecond;423            SYSTEMTIME systemtime2 = new SYSTEMTIME();424            systemtime2.Year = (short)dates[1].Year;425            systemtime2.Month = (short)dates[1].Month;426            systemtime2.Day = (short)dates[1].Day;427            systemtime2.DayOfWeek = (short)dates[1].DayOfWeek;428            systemtime2.Hour = (short)dates[1].Hour;429            systemtime2.Minute = (short)dates[1].Minute;430            systemtime2.Second = (short)dates[1].Second;431            systemtime2.Milliseconds = (short)dates[1].Millisecond;432            // allocate memory in the process of the calendar433            IntPtr hMem = User32.VirtualAllocEx(hProcess, IntPtr.Zero, (uint)(2 * Marshal.SizeOf(systemtime1)),434                AllocationType.Commit | AllocationType.Reserve, MemoryProtection.ReadWrite);435            if (hMem == IntPtr.Zero)436            {437                throw new Exception("Insufficient rights");438            }439            IntPtr lpNumberOfBytesWritten = IntPtr.Zero;440            if (User32.WriteProcessMemory(hProcess, hMem, systemtime1, Marshal.SizeOf(systemtime1), out lpNumberOfBytesWritten) == false)441            {442                throw new Exception("Insufficient rights");443            }444            IntPtr hMem2 = new IntPtr(hMem.ToInt64() + Marshal.SizeOf(systemtime1));445            if (User32.WriteProcessMemory(hProcess, hMem2, systemtime2, Marshal.SizeOf(systemtime2), out lpNumberOfBytesWritten) == false)446            {447                throw new Exception("Insufficient rights");448            }449            User32.SendMessage(handle, Win32CalendarMessages.MCM_SETSELRANGE, IntPtr.Zero, hMem);450            // release memory451            User32.VirtualFreeEx(hProcess, hMem, 2 * Marshal.SizeOf(systemtime1),452                AllocationType.Decommit | AllocationType.Release);453            User32.CloseHandle(hProcess);454        }455        // gets the selected date from a Win32 DateTimePicker456        internal static DateTime? GetDTPSelectedDate(IntPtr handle)457        {458            uint procid = 0;459            User32.GetWindowThreadProcessId(handle, out procid);460            IntPtr hProcess = User32.OpenProcess(ProcessAccessFlags.All, false, (int)procid);461            if (hProcess == IntPtr.Zero)462            {463                throw new Exception("Insufficient rights");464            }465            SYSTEMTIME systemtime = new SYSTEMTIME();466            IntPtr hMem = User32.VirtualAllocEx(hProcess, IntPtr.Zero, (uint)Marshal.SizeOf(systemtime),467                AllocationType.Commit | AllocationType.Reserve, MemoryProtection.ReadWrite);468            if (hMem == IntPtr.Zero)469            {470                throw new Exception("Insufficient rights");471            }472            IntPtr lResult = User32.SendMessage(handle, DateTimePicker32Messages.DTM_GETSYSTEMTIME, IntPtr.Zero, hMem);473            if (lResult.ToInt32() == (int)(DateTimePicker32Constants.GDT_NONE))474            {475                // DateTimePicker is unchecked and grayed out476                User32.VirtualFreeEx(hProcess, hMem, Marshal.SizeOf(systemtime), AllocationType.Decommit | AllocationType.Release);477                User32.CloseHandle(hProcess);478                return null;479            }480            IntPtr address = Marshal.AllocHGlobal(Marshal.SizeOf(systemtime));481            IntPtr lpNumberOfBytesRead = IntPtr.Zero;482            if (User32.ReadProcessMemory(hProcess, hMem, address, Marshal.SizeOf(systemtime), out lpNumberOfBytesRead) == false)483            {484                throw new Exception("Insufficient rights");485            }486            systemtime = (SYSTEMTIME)Marshal.PtrToStructure(address, typeof(SYSTEMTIME));487            Marshal.FreeHGlobal(address);488            User32.VirtualFreeEx(hProcess, hMem, Marshal.SizeOf(systemtime), AllocationType.Decommit | AllocationType.Release);489            User32.CloseHandle(hProcess);490            DateTime datetime;491            try492            {493                datetime = new DateTime(systemtime.Year, systemtime.Month, systemtime.Day,494                    systemtime.Hour, systemtime.Minute, systemtime.Second);495            }496            catch497            {498                datetime = new DateTime(systemtime.Year, systemtime.Month, systemtime.Day,499                    0, 0, 0);500            }501            return datetime;502        }503        // sets the selected date in a Win32 DateTimePicker.504        // if "date" parameter is null then the DateTimePicker will be unchecked and grayed out.505        internal static void SetDTPSelectedDate(IntPtr handle, DateTime? date)506        {507            if (handle == IntPtr.Zero || GetWindowClassName(handle) != "SysDateTimePick32")508            {509                throw new Exception("Not supported for this type of DateTimePicker");510            }511            if (date == null)512            {513                User32.SendMessage(handle, DateTimePicker32Messages.DTM_SETSYSTEMTIME, new IntPtr(DateTimePicker32Constants.GDT_NONE), IntPtr.Zero);514                return;515            }516            uint procid = 0;517            User32.GetWindowThreadProcessId(handle, out procid);518            IntPtr hProcess = User32.OpenProcess(ProcessAccessFlags.All, false, (int)procid);519            if (hProcess == IntPtr.Zero)520            {521                throw new Exception("Insufficient rights");522            }523            SYSTEMTIME systemtime = new SYSTEMTIME();524            systemtime.Year = (short)date.Value.Year;525            systemtime.Month = (short)date.Value.Month;526            systemtime.Day = (short)date.Value.Day;527            systemtime.DayOfWeek = (short)date.Value.DayOfWeek;528            systemtime.Hour = (short)date.Value.Hour;529            systemtime.Minute = (short)date.Value.Minute;530            systemtime.Second = (short)date.Value.Second;531            systemtime.Milliseconds = (short)date.Value.Millisecond;532            IntPtr hMem = User32.VirtualAllocEx(hProcess, IntPtr.Zero, (uint)Marshal.SizeOf(systemtime),533                AllocationType.Commit | AllocationType.Reserve, MemoryProtection.ReadWrite);534            if (hMem == IntPtr.Zero)535            {536                throw new Exception("Insufficient rights");537            }538            IntPtr lpNumberOfBytesWritten = IntPtr.Zero;539            if (User32.WriteProcessMemory(hProcess, hMem, systemtime, Marshal.SizeOf(systemtime),540                out lpNumberOfBytesWritten) == false)541            {542                throw new Exception("Insufficient rights");543            }544            User32.SendMessage(handle, DateTimePicker32Messages.DTM_SETSYSTEMTIME, new IntPtr(DateTimePicker32Constants.GDT_VALID), hMem);545            User32.VirtualFreeEx(hProcess, hMem, Marshal.SizeOf(systemtime), AllocationType.Decommit | AllocationType.Release);546            User32.CloseHandle(hProcess);547        }548    }549}...

User32.cs

Source:User32.cs

...85        public static extern IntPtr VirtualAllocEx(IntPtr hProcess, IntPtr lpAddress, uint dwSize, AllocationType flAllocationType, MemoryProtection flProtect);86        [DllImport("kernel32.dll", SetLastError = true)]87        public static extern bool ReadProcessMemory(IntPtr hProcess, IntPtr lpBaseAddress, IntPtr lpBuffer, int dwSize, out IntPtr lpNumberOfBytesRead);88        [DllImport("kernel32.dll", SetLastError = true, ExactSpelling = true)]89        public static extern bool VirtualFreeEx(IntPtr hProcess, IntPtr lpAddress, int dwSize, AllocationType dwFreeType);90        [DllImport("kernel32.dll", SetLastError = true)]91        [ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success)]92        [SuppressUnmanagedCodeSecurity]93        [return: MarshalAs(UnmanagedType.Bool)]94        public static extern bool CloseHandle(IntPtr hObject);95        [DllImport("kernel32.dll", SetLastError = true)]96        public static extern bool WriteProcessMemory(IntPtr hProcess, IntPtr lpBaseAddress,97            [MarshalAs(UnmanagedType.AsAny)] object lpBuffer, int dwSize, out IntPtr lpNumberOfBytesWritten);98    }99#pragma warning restore CS1591 // Missing XML comment for publicly visible type or member100}...

VirtualFreeEx

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using FlaUI.Core.WindowsAPI;7{8    {9        static void Main(string[] args)10        {11            var process = System.Diagnostics.Process.GetProcessesByName("notepad").FirstOrDefault();12            var handle = process.MainWindowHandle;13            var allocatedMemory = User32.VirtualAllocEx(handle, IntPtr.Zero, 100, AllocationType.Commit, MemoryProtection.ExecuteReadWrite);14            User32.WriteProcessMemory(handle, allocatedMemory, Encoding.ASCII.GetBytes("Hello World"), 100, out var bytesWritten);15            User32.VirtualFreeEx(handle, allocatedMemory, 100, FreeType.Release);16        }17    }18}

VirtualFreeEx

Using AI Code Generation

1using FlaUI.Core.WindowsAPI;2using System;3using System.Diagnostics;4using System.Runtime.InteropServices;5{6    {7        static void Main(string[] args)8        {9            Process process = Process.Start("notepad.exe");10            if (process != null)11            {12                IntPtr processHandle = User32.OpenProcess(ProcessAccessFlags.All, false, process.Id);13                IntPtr baseAddress = Marshal.AllocHGlobal(1024);14                User32.VirtualAllocEx(processHandle, baseAddress, 1024, AllocationType.Commit | AllocationType.Reserve, MemoryProtection.ExecuteReadWrite);15                User32.WriteProcessMemory(processHandle, baseAddress, new byte[1024], 1024, out int bytesWritten);16                User32.VirtualFreeEx(processHandle, baseAddress, 0, FreeType.Release);17                User32.CloseHandle(processHandle);18            }19        }20    }21}

VirtualFreeEx

Using AI Code Generation

1using FlaUI.Core.WindowsAPI;2using System;3using System.Diagnostics;4using System.Runtime.InteropServices;5{6    {7        static void Main(string[] args)8        {9            Process[] process = Process.GetProcessesByName("notepad");10            IntPtr processId = process[0].Id;11            IntPtr hProcess = User32.OpenProcess(User32.ProcessAccessFlags.PROCESS_ALL_ACCESS, false, (uint)processId);12            IntPtr lpBaseAddress = User32.VirtualAllocEx(hProcess, IntPtr.Zero, 0x1000, User32.AllocationType.Commit | User32.AllocationType.Reserve, User32.MemoryProtection.ExecuteReadWrite);13            byte[] shellcode = new byte[] { 0x48, 0x31, 0xC0, 0x48, 0x31, 0xDB, 0x48, 0x31, 0xC9, 0x48, 0x31, 0xD2, 0x48, 0x31, 0xFF, 0x48, 0x31, 0xF6, 0x48, 0x31, 0xED, 0x48, 0x31, 0xE4, 0x48, 0x31, 0xEB, 0x48, 0x31, 0xE2, 0x48, 0x31, 0xF9, 0x48, 0x31, 0xF0, 0x48, 0x31, 0xE7, 0x48, 0x31, 0xEE, 0x48, 0x31, 0xE5, 0x48, 0x31, 0xFC, 0x48, 0x31, 0xF3, 0x48, 0x31, 0xEA, 0x48, 0x31, 0xF1, 0x48, 0x31, 0xE8, 0x48, 0x31, 0xEF, 0

VirtualFreeEx

Using AI Code Generation

1using FlaUI.Core.WindowsAPI;2using System;3using System.Diagnostics;4using System.Runtime.InteropServices;5using System.Windows.Forms;6{7    {8        public Form1()9        {10            InitializeComponent();11        }12        private void btnFree_Click(object sender, EventArgs e)13        {14            Process[] targetProcess = Process.GetProcessesByName(txtProcessName.Text);15            if (targetProcess.Length > 0)16            {17                IntPtr targetProcessHandle = User32.OpenProcess(0x1F0FFF, false, targetProcess[0].Id);18                if (targetProcessHandle != IntPtr.Zero)19                {20                    if (User32.VirtualFreeEx(targetProcessHandle, IntPtr.Parse(txtAddress.Text), 0, 0x8000))21                    {22                        MessageBox.Show("Memory Freed");23                    }24                    {25                        MessageBox.Show("Failed to free memory");26                    }27                }28                {29                    MessageBox.Show("Failed to open the process");30                }31            }32            {33                MessageBox.Show("Process not found");34            }35        }36    }37}38using FlaUI.Core.WindowsAPI;39using System;40using System.Diagnostics;41using System.Runtime.InteropServices;42using System.Windows.Forms;43{44    {45        public Form1()46        {47            InitializeComponent();48        }49        private void btnAllocate_Click(object sender, EventArgs e)50        {51            Process[] targetProcess = Process.GetProcessesByName(txtProcessName.Text);52            if (targetProcess.Length > 0)53            {54                IntPtr targetProcessHandle = User32.OpenProcess(0x1F0FFF, false, targetProcess[0].Id);55                if (targetProcessHandle != IntPtr.Zero)56                {57                    IntPtr address = User32.VirtualAllocEx(targetProcessHandle, IntPtr.Zero, 0x1000, 0x3000, 0x40);58                    if (address != IntPtr.Zero)59                    {60                        MessageBox.Show("Memory Allocated");61                        txtAddress.Text = address.ToString();62                    }63                    {64                        MessageBox.Show("Failed to allocate memory");65                    }66                }67                {68                    MessageBox.Show("Failed to open the

VirtualFreeEx

Using AI Code Generation

1using FlaUI.Core.WindowsAPI;2using System;3using System.Runtime.InteropServices;4{5    {6        static void Main(string[] args)7        {8            int processId = 0;9            IntPtr processHandle = IntPtr.Zero;10            IntPtr address = IntPtr.Zero;11            UIntPtr size = (UIntPtr)0x1000;12            uint state = 0x1000;13            uint type = 0x2000;14            uint allocationType = 0x00002000;15            uint protectionType = 0x00000004;16            IntPtr currentProcessHandle = IntPtr.Zero;17            IntPtr addressOfAllocatedMemory = IntPtr.Zero;18            UIntPtr sizeOfAllocatedMemory = (UIntPtr)0x1000;19            uint stateOfAllocatedMemory = 0x1000;20            uint typeOfAllocatedMemory = 0x2000;21            IntPtr bytesRead = IntPtr.Zero;22            IntPtr bytesWritten = IntPtr.Zero;23            byte[] buffer = new byte[0x1000];24            byte[] data = new byte[0x1000];25            currentProcessHandle = User32.GetCurrentProcess();26            processId = User32.GetProcessIdFromWindowHandle(User32.FindWindow(null, "Untitled - Notepad"));27            processHandle = User32.OpenProcess(0x001F0FFF, false, processId);

VirtualFreeEx

Using AI Code Generation

1using FlaUI.Core.WindowsAPI;2using System;3using System.Diagnostics;4using System.Runtime.InteropServices;5{6    {7        static void Main(string[] args)8        {9            Process process = Process.GetProcessesByName("notepad")[0];10            IntPtr hProcess = User32.OpenProcess(ProcessAccessFlags.All, false, process.Id);11            IntPtr lpAddress = new IntPtr(0x00000000);12            UIntPtr dwSize = new UIntPtr(0x00001000);13            UInt32 dwFreeType = 0x00008000;14            bool result = User32.VirtualFreeEx(hProcess, lpAddress, dwSize, dwFreeType);15            Console.WriteLine("VirtualFreeEx result: {0}", result);16            Console.ReadLine();17        }18    }19}

VirtualFreeEx

Using AI Code Generation

1using FlaUI.Core.WindowsAPI;2{3    {4        static void Main(string[] args)5        {6            IntPtr pointer = new IntPtr(0x0000000000000000);7            UIntPtr size = new UIntPtr(0x0000000000000000);8            User32.VirtualFreeEx(pointer, size, 0x00008000);9        }10    }11}12using FlaUI.Core.WindowsAPI;13{14    {15        static void Main(string[] args)16        {17            IntPtr pointer = new IntPtr(0x0000000000000000);18            UIntPtr size = new UIntPtr(0x0000000000000000);19            MEMORY_BASIC_INFORMATION memInfo = new MEMORY_BASIC_INFORMATION();20            User32.VirtualQueryEx(pointer, memInfo, size);21        }22    }23}

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