FtSubFt  
The FtSubFt
function subtracts one unsigned 64-bit integer indicating a time value from
another. 
Note  This function
may not be supported in future versions of MAPI.
Quick Info 
| Header
  file:  | MAPIUTIL.H  | 
| Implemented
  by:  | MAPI  | 
| Called by:  | Client
  applications and service providers  | 
FILETIME FtSubFt(
|     FILETIME Minuend,
   |  | 
|     FILETIME Subtrahend |  | 
|    ); |  | 
Parameters 
Minuend
[in] A FILETIME structure defining the
unsigned 64-bit integer from which the value in the Subtrahend parameter
is subtracted. 
Subtrahend
[in] A FILETIME
structure defining an unsigned 64-bit integer that this function subtracts from
the value indicated by the Minuend parameter. 
Remarks 
The FtSubFt
function returns a FILETIME
structure containing the results of the subtraction.