/// <summary>
/// Returns the text for a specified item index
/// </summary>
/// <param name="index"></param>
/// <returns></returns>
public string GetItemText(int index, int columnIndex)
{
const int dwBufferSize = 1024;
int dwProcessID;
Win32.LVITEM lvItem;
string retval;
bool bSuccess;
IntPtr hProcess = IntPtr.Zero;
IntPtr lpRemoteBuffer = IntPtr.Zero;
IntPtr lpLocalBuffer = IntPtr.Zero;
IntPtr threadID = IntPtr.Zero;
try
{
lvItem = new Win32.LVITEM();
lpLocalBuffer = Marshal.AllocHGlobal(dwBufferSize);
// Get the process ID
threadID = Win32.GetWindowThreadProcessId(handle, out dwProcessID);
if(threadID == IntPtr.Zero || dwProcessID == 0)
throw new ArgumentException("Could not get remote process thread id");
// Open the process with all access
hProcess = Win32.OpenProcess(Win32.PROCESS_ALL_ACCESS, false, dwProcessID);
if(hProcess == IntPtr.Zero)
throw new ApplicationException("Failed to open remote process");
// Allocate a buffer in the remote process
lpRemoteBuffer = Win32.VirtualAllocEx(hProcess, IntPtr.Zero, dwBufferSize, Win32.MEM_COMMIT, Win32.PAGE_READWRITE);
if(lpRemoteBuffer == IntPtr.Zero)
throw new SystemException("Failed to allocate memory in the remote process");
// Fill in the LVITEM struct in our own process
// Set the pszText member to somewhere in the remote buffer, in this case immediatly following the LVITEM struct
lvItem.iSubItem = columnIndex;
lvItem.pszText = (IntPtr)(lpRemoteBuffer.ToInt32() + Marshal.SizeOf(typeof(Win32.LVITEM)));
lvItem.cchTextMax = 1024;
// Copy the local LVITEM struct to the remote buffer
bSuccess = Win32.WriteProcessMemory(hProcess, lpRemoteBuffer, ref lvItem, Marshal.SizeOf(typeof(Win32.LVITEM)), IntPtr.Zero);
if(!bSuccess)
throw new SystemException("Failed to write to remote process memory");
// Send a GETITEMTEXT message to the remote process, containing the address of the remote buffer
Win32.SendMessage((IntPtr)handle, (int)Win32.LVM.GETITEMTEXT, index, lpRemoteBuffer);
// Read the struct back from the remote process into the local buffer
bSuccess = Win32.ReadProcessMemory(hProcess, lpRemoteBuffer, lpLocalBuffer, dwBufferSize, IntPtr.Zero);
if(!bSuccess)
throw new SystemException("Failed to read from remote process memory");
// At this point the lpLocalBuffer contains the returned LVITEM structure
// Now we can extract the text from the buffer
retval = Marshal.PtrToStringAnsi((IntPtr)(lpLocalBuffer.ToInt32() + Marshal.SizeOf(typeof(Win32.LVITEM))));
}
catch(Exception e)
{
retval = e.Message;
}
finally
{
if(lpLocalBuffer != IntPtr.Zero)
Marshal.FreeHGlobal(lpLocalBuffer);
if(lpRemoteBuffer != IntPtr.Zero)
Win32.VirtualFreeEx(hProcess, lpRemoteBuffer, 0, Win32.MEM_RELEASE);
if(hProcess != IntPtr.Zero)
Win32.CloseHandle(hProcess);
}
return retval;
}
/// <summary>
/// Selects a row at the specified index
/// </summary>
/// <param name="index"></param>
public void SelectItem(int index)
{
const int dwBufferSize = 1024;
int dwProcessID;
Win32.LVITEM lvItem;
bool bSuccess;
IntPtr hProcess = IntPtr.Zero;
IntPtr lpRemoteBuffer = IntPtr.Zero;
IntPtr lpLocalBuffer = IntPtr.Zero;
IntPtr threadID = IntPtr.Zero;
try
{
lvItem = new Win32.LVITEM();
lpLocalBuffer = Marshal.AllocHGlobal(dwBufferSize);
// Get the process ID
threadID = Win32.GetWindowThreadProcessId(handle, out dwProcessID);
if (threadID == IntPtr.Zero || dwProcessID == 0)
{
throw new ArgumentException("Could not get remote process thread id");
}
// Open the process with all access
hProcess = Win32.OpenProcess(Win32.PROCESS_ALL_ACCESS, false, dwProcessID);
if (hProcess == IntPtr.Zero)
{
throw new ApplicationException("Failed to open remote process");
}
// Allocate a buffer in the remote process
lpRemoteBuffer = Win32.VirtualAllocEx(hProcess, IntPtr.Zero, dwBufferSize, Win32.MEM_COMMIT, Win32.PAGE_READWRITE);
if (lpRemoteBuffer == IntPtr.Zero)
{
throw new SystemException("Failed to allocate memory in the remote process");
}
// Fill in the local LVITEM struct, set the selected state flag
lvItem.state = ((int)Win32.LVIS.SELECTED | (int)Win32.LVIS.FOCUSED);
lvItem.stateMask = ((int)Win32.LVIS.SELECTED | (int)Win32.LVIS.FOCUSED);
// Copy the local LVITEM struct to the remote buffer
bSuccess = Win32.WriteProcessMemory(hProcess, lpRemoteBuffer, ref lvItem, Marshal.SizeOf(typeof(Win32.LVITEM)), IntPtr.Zero);
if (!bSuccess)
{
throw new SystemException("Failed to write to remote process memory");
}
// Send a message to the listview with the address of the remote buffer
Win32.SendMessage((IntPtr)handle, (int)Win32.LVM.SETITEMSTATE, index, lpRemoteBuffer);
Win32.SendMessage((IntPtr)handle, (int)Win32.LVM.ENSUREVISIBLE, index, IntPtr.Zero);
// Read the struct back from the remote process into the local buffer
bSuccess = Win32.ReadProcessMemory(hProcess, lpRemoteBuffer, lpLocalBuffer, dwBufferSize, IntPtr.Zero);
if (!bSuccess)
{
throw new SystemException("Failed to read from remote process memory");
}
}
finally
{
if (lpLocalBuffer != IntPtr.Zero)
{
Marshal.FreeHGlobal(lpLocalBuffer);
}
if (lpRemoteBuffer != IntPtr.Zero)
{
Win32.VirtualFreeEx(hProcess, lpRemoteBuffer, 0, Win32.MEM_RELEASE);
}
if (hProcess != IntPtr.Zero)
{
Win32.CloseHandle(hProcess);
}
}
}
/// <summary>
/// Selects a row at the specified index
/// </summary>
/// <param name="index"></param>
public void SelectItem(int index)
{
const int dwBufferSize = 1024;
int dwProcessID;
Win32.LVITEM lvItem;
bool bSuccess;
IntPtr hProcess = IntPtr.Zero;
IntPtr lpRemoteBuffer = IntPtr.Zero;
IntPtr lpLocalBuffer = IntPtr.Zero;
IntPtr threadID = IntPtr.Zero;
try
{
lvItem = new Win32.LVITEM();
lpLocalBuffer = Marshal.AllocHGlobal(dwBufferSize);
// Get the process ID
threadID = Win32.GetWindowThreadProcessId(handle, out dwProcessID);
if(threadID == IntPtr.Zero || dwProcessID == 0)
throw new ArgumentException("Could not get remote process thread id");
// Open the process with all access
hProcess = Win32.OpenProcess(Win32.PROCESS_ALL_ACCESS, false, dwProcessID);
if(hProcess == IntPtr.Zero)
throw new ApplicationException("Failed to open remote process");
// Allocate a buffer in the remote process
lpRemoteBuffer = Win32.VirtualAllocEx(hProcess, IntPtr.Zero, dwBufferSize, Win32.MEM_COMMIT, Win32.PAGE_READWRITE);
if(lpRemoteBuffer == IntPtr.Zero)
throw new SystemException("Failed to allocate memory in the remote process");
// Fill in the local LVITEM struct, set the selected state flag
lvItem.state = ((int)Win32.LVIS.SELECTED | (int)Win32.LVIS.FOCUSED);
lvItem.stateMask = ((int)Win32.LVIS.SELECTED | (int)Win32.LVIS.FOCUSED);
// Copy the local LVITEM struct to the remote buffer
bSuccess = Win32.WriteProcessMemory(hProcess, lpRemoteBuffer, ref lvItem, Marshal.SizeOf(typeof(Win32.LVITEM)), IntPtr.Zero);
if(!bSuccess)
throw new SystemException("Failed to write to remote process memory");
// Send a message to the listview with the address of the remote buffer
Win32.SendMessage((IntPtr)handle, (int)Win32.LVM.SETITEMSTATE, index, lpRemoteBuffer);
Win32.SendMessage((IntPtr)handle, (int)Win32.LVM.ENSUREVISIBLE, index, IntPtr.Zero);
// Read the struct back from the remote process into the local buffer
bSuccess = Win32.ReadProcessMemory(hProcess, lpRemoteBuffer, lpLocalBuffer, dwBufferSize, IntPtr.Zero);
if(!bSuccess)
throw new SystemException("Failed to read from remote process memory");
}
finally
{
if(lpLocalBuffer != IntPtr.Zero)
Marshal.FreeHGlobal( lpLocalBuffer);
if(lpRemoteBuffer != IntPtr.Zero)
Win32.VirtualFreeEx( hProcess, lpRemoteBuffer, 0, Win32.MEM_RELEASE);
if(hProcess != IntPtr.Zero)
Win32.CloseHandle( hProcess);
}
}
/// <summary>
/// Returns the text for a specified item index
/// </summary>
/// <param name="index"></param>
/// <returns></returns>
public string GetItemText(int index, int columnIndex)
{
const int dwBufferSize = 1024;
int dwProcessID;
Win32.LVITEM lvItem;
string retval;
bool bSuccess;
IntPtr hProcess = IntPtr.Zero;
IntPtr lpRemoteBuffer = IntPtr.Zero;
IntPtr lpLocalBuffer = IntPtr.Zero;
IntPtr threadID = IntPtr.Zero;
try
{
lvItem = new Win32.LVITEM();
lpLocalBuffer = Marshal.AllocHGlobal(dwBufferSize);
// Get the process ID
threadID = Win32.GetWindowThreadProcessId(handle, out dwProcessID);
if (threadID == IntPtr.Zero || dwProcessID == 0)
{
throw new ArgumentException("Could not get remote process thread id");
}
// Open the process with all access
hProcess = Win32.OpenProcess(Win32.PROCESS_ALL_ACCESS, false, dwProcessID);
if (hProcess == IntPtr.Zero)
{
throw new ApplicationException("Failed to open remote process");
}
// Allocate a buffer in the remote process
lpRemoteBuffer = Win32.VirtualAllocEx(hProcess, IntPtr.Zero, dwBufferSize, Win32.MEM_COMMIT, Win32.PAGE_READWRITE);
if (lpRemoteBuffer == IntPtr.Zero)
{
throw new SystemException("Failed to allocate memory in the remote process");
}
// Fill in the LVITEM struct in our own process
// Set the pszText member to somewhere in the remote buffer, in this case immediatly following the LVITEM struct
lvItem.iSubItem = columnIndex;
lvItem.pszText = (IntPtr)(lpRemoteBuffer.ToInt32() + Marshal.SizeOf(typeof(Win32.LVITEM)));
lvItem.cchTextMax = 1024;
// Copy the local LVITEM struct to the remote buffer
bSuccess = Win32.WriteProcessMemory(hProcess, lpRemoteBuffer, ref lvItem, Marshal.SizeOf(typeof(Win32.LVITEM)), IntPtr.Zero);
if (!bSuccess)
{
throw new SystemException("Failed to write to remote process memory");
}
// Send a GETITEMTEXT message to the remote process, containing the address of the remote buffer
Win32.SendMessage((IntPtr)handle, (int)Win32.LVM.GETITEMTEXT, index, lpRemoteBuffer);
// Read the struct back from the remote process into the local buffer
bSuccess = Win32.ReadProcessMemory(hProcess, lpRemoteBuffer, lpLocalBuffer, dwBufferSize, IntPtr.Zero);
if (!bSuccess)
{
throw new SystemException("Failed to read from remote process memory");
}
// At this point the lpLocalBuffer contains the returned LVITEM structure
// Now we can extract the text from the buffer
retval = Marshal.PtrToStringAnsi((IntPtr)(lpLocalBuffer.ToInt32() + Marshal.SizeOf(typeof(Win32.LVITEM))));
}
catch (Exception e)
{
retval = e.Message;
}
finally
{
if (lpLocalBuffer != IntPtr.Zero)
{
Marshal.FreeHGlobal(lpLocalBuffer);
}
if (lpRemoteBuffer != IntPtr.Zero)
{
Win32.VirtualFreeEx(hProcess, lpRemoteBuffer, 0, Win32.MEM_RELEASE);
}
if (hProcess != IntPtr.Zero)
{
Win32.CloseHandle(hProcess);
}
}
return(retval);
}
