|
public static GetThreadSelectorEntry ( |
||
| threadHandle | A handle to the thread containing the specified selector. | |
| selector | uint | The global or local selector value to look up in the thread's descriptor tables. |
| Résultat | ||
public static LdtEntry GetThreadSelectorEntry(SafeMemoryHandle threadHandle, uint selector)
{
// Check if the handle is valid
HandleManipulator.ValidateAsArgument(threadHandle, "threadHandle");
// Get the selector entry
LdtEntry entry;
if (NativeMethods.GetThreadSelectorEntry(threadHandle, selector, out entry))
return entry;
// Else couldn't get the selector entry, throws an exception
throw new Win32Exception(string.Format("Couldn't get the selector entry for this selector: {0}.", selector));
}
/// <summary>
/// Gets the linear address of a specified segment.
/// </summary>
/// <param name="segment">The segment to get.</param>
/// <returns>A <see cref="IntPtr" /> pointer corresponding to the linear address of the segment.</returns>
public IntPtr GetRealSegmentAddress(SegmentRegisters segment)
{
// Get a selector entry for the segment
LdtEntry entry;
switch (segment)
{
case SegmentRegisters.Cs:
entry = ThreadCore.GetThreadSelectorEntry(Handle, Context.SegCs);
break;
case SegmentRegisters.Ds:
entry = ThreadCore.GetThreadSelectorEntry(Handle, Context.SegDs);
break;
case SegmentRegisters.Es:
entry = ThreadCore.GetThreadSelectorEntry(Handle, Context.SegEs);
break;
case SegmentRegisters.Fs:
entry = ThreadCore.GetThreadSelectorEntry(Handle, Context.SegFs);
break;
case SegmentRegisters.Gs:
entry = ThreadCore.GetThreadSelectorEntry(Handle, Context.SegGs);
break;
case SegmentRegisters.Ss:
entry = ThreadCore.GetThreadSelectorEntry(Handle, Context.SegSs);
break;
default:
throw new InvalidEnumArgumentException("segment");
}
// Compute the linear address
return(new IntPtr(entry.BaseLow | (entry.BaseMid << 16) | (entry.BaseHi << 24)));
}