DosR2StackRealloc

This call changes the size of a thread's privilege level 2 stack.

DosR2StackRealloc

(NewSize)

NewSize (USHORT) - input

New size, in bytes, for the privilege level 2 stack. The stack is reallocated as required and the TSS SP pointer is adjusted accordingly. The new stack size can not be less than the current stack size.

rc (USHORT) - return

Return code descriptions are:
• NO_ERROR 8
  ERROR_NOT_ENOUGH_MEMORY
  196
  ERROR_DYNLINK_FROM_INVALID_RING
  197
  ERROR_IOPL_NOT_ENABLED
  207
  ERROR_RING2_STACK_IN_USE
  216
  ERROR_CANNOT_SHRINK
  Remarks

  This call is provided to allow the privilege level 2 stack to be resized and to have the TSS adjusted to reflect the new size. The size can not be less than the current size.

  This call can not be made from privilege level 2.

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