/*********************************
This is the file WinTreeCondition.cpp == Windows Last Left Threaded Data Tree Condition.
It holds functions and method bodies that report back the current overall condition of the tree.

Functions:

bool DoesTreeExist(TreeData* pTD)	{
*********************************/

#include "WinTree.h"  // WinTree1.h is 'ifndef' so wont be multipled defind

// *********************************************************
// ++++++++++++ BEGIN function DoesTreeExist +++++++++++++++

/****
	One; test if tree exist,  
	Two; test if new tree node data is valid for this tree.
	Test two is done as a safety check, pTD-FetchPointerToRoot() may have a bad pointer, 
	but a pointer is a pointer, so cursory test of node data is done.	
	In ASCII and UNICODE A...Za...z is between 64 and 123 in DEC values.
****/

bool
DoesTreeExist(TreeData* pTD)	{

	if( pTD->FetchPointerToRoot() == NULL )	{
		return false;
		}
		else
		{
		TCHAR *szTreeNodeData = (pTD->FetchPointerToRoot())->FetchTreeNodeData() ;  
		if( (int)*szTreeNodeData <= 64  ||  (int)*szTreeNodeData >= 123 )	
			return false;
		}
return true;
	} // End FetchTreeData...
// ------------ END function DoesTreeExist -----------------
// *********************************************************