private static bool HasReadAccess(IntPtr hProcess, IntPtr address, out int size)
{
size = 0;
var memInfo = new ProcessNativeMethods.MEMORY_BASIC_INFORMATION();
IntPtr result = ProcessNativeMethods.VirtualQueryEx(
hProcess,
address,
ref memInfo,
(IntPtr)Marshal.SizeOf(memInfo));
if (result == IntPtr.Zero)
{
return(false);
}
if (memInfo.Protect == ProcessNativeMethods.PAGE_NOACCESS || memInfo.Protect == ProcessNativeMethods.PAGE_EXECUTE)
{
return(false);
}
try
{
size = Convert.ToInt32(memInfo.RegionSize.ToInt64() - (address.ToInt64() - memInfo.BaseAddress.ToInt64()));
}
catch (OverflowException)
{
return(false);
}
if (size <= 0)
{
return(false);
}
return(true);
}