public void WriteTo <T>(ref T structure, int offset) where T : struct
{
int cbSize = Marshal.SizeOf(structure);
using (var m = new CoTaskMem(cbSize))
{
Marshal.StructureToPtr(structure, m.Address, false);
WriteTo(m.Address, offset, cbSize);
}
}
public T ReadFrom <T>(int offset) where T : struct
{
int cbSize = Marshal.SizeOf(typeof(T));
using (var m = new CoTaskMem(cbSize))
{
ReadFrom(m.Address, offset, cbSize);
return((T)Marshal.PtrToStructure(m.Address, typeof(T)));
}
}
public static string GetItemText(IntPtr hwnd, int item, int subItem)
{
using (var hProcess = new RemoteProcessHandle(hwnd))
{
int offset = hProcess.Is32Bit ? Marshal.SizeOf(typeof(LVITEM32)) : Marshal.SizeOf(typeof(LVITEM64));
int cbSize = (MAX_LVMSTRING + 1) * 2;
using (var remoteMem = new RemoteMemoryHandle(hProcess, offset + cbSize))
{
if (hProcess.Is32Bit)
{
var lvitem = new LVITEM32();
lvitem.mask = LVIF_TEXT;
lvitem.pszText = (uint)(remoteMem.Address + offset);
lvitem.cchTextMax = MAX_LVMSTRING;
lvitem.iItem = item;
lvitem.iSubItem = subItem;
remoteMem.WriteTo(ref lvitem);
}
else
{
var lvitem = new LVITEM64();
lvitem.mask = LVIF_TEXT;
lvitem.pszText = (ulong)(remoteMem.Address + offset);
lvitem.cchTextMax = MAX_LVMSTRING;
lvitem.iItem = item;
lvitem.iSubItem = subItem;
remoteMem.WriteTo(ref lvitem);
}
bool isUnicode = IsWindowUnicode(hwnd);
int LVM_GETITEMTEXT = isUnicode ? LVM_GETITEMTEXTW : LVM_GETITEMTEXTA;
IntPtr result = SendMessage(hwnd, LVM_GETITEMTEXT, new IntPtr(item), remoteMem.Address);
if (result == IntPtr.Zero)
{
throw new Win32Exception();
}
using (var m = new CoTaskMem(cbSize))
{
remoteMem.ReadFrom(m.Address, offset, cbSize);
if (isUnicode)
{
return(Marshal.PtrToStringUni(m.Address));
}
else
{
return(Marshal.PtrToStringAnsi(m.Address));
}
}
}
}
}
