Return atom length when requested. Fixes bug 793.

Modified: trunk/reactos/lib/rtl/atom.c
Modified: trunk/reactos/subsys/win32k/ntuser/class.c

--- trunk/reactos/lib/rtl/atom.c	2005-09-22 20:17:55 UTC (rev 17984)
+++ trunk/reactos/lib/rtl/atom.c	2005-09-22 20:24:50 UTC (rev 17985)
@@ -610,6 +610,10 @@

                   *NameLength = Length;
                }
           }

+        else if (NameLength != NULL)
+          {
+             *NameLength = (Entry->NameLength + 1) * sizeof(WCHAR);
+          }

 
         return Status;
      }
@@ -651,6 +655,10 @@

                   *NameLength = Length;
                }
           }

+        else if (NameLength != NULL)
+          {
+             *NameLength = (Entry->NameLength + 1) * sizeof(WCHAR);
+          }

      }
    else
      {

--- trunk/reactos/subsys/win32k/ntuser/class.c	2005-09-22 20:17:55 UTC (rev 17984)
+++ trunk/reactos/subsys/win32k/ntuser/class.c	2005-09-22 20:24:50 UTC (rev 17985)
@@ -208,7 +208,7 @@

    Length = 0;
    Status = RtlQueryAtomInAtomTable(WinStaObject->AtomTable,
                                     WindowObject->Class->Atom, NULL, NULL, NULL, &Length);

-   Name = ExAllocatePoolWithTag(PagedPool, Length + sizeof(UNICODE_NULL), TAG_STRING);

+   Name = ExAllocatePoolWithTag(PagedPool, Length, TAG_STRING);

    Status = RtlQueryAtomInAtomTable(WinStaObject->AtomTable,
                                     WindowObject->Class->Atom, NULL, NULL, Name, &Length);
    if (!NT_SUCCESS(Status))