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4/8/2010

This function multiplies aby b, adds rndto the 128-bit result, then divides by c.

Syntax 

LONGLONG WINAPI llMulDiv(
  LONGLONG 
a,
  LONGLONG 
b,
  LONGLONG 
c,
  LONGLONG 
rnd
);

Return Value

Returns either the (a * b + rnd)/c calculation or one of the following values.

Value Description

0x7FFFFFFFFFFFFFFF

Overflow occurred because the result is too large (positive).

0x8000000000000000

Overflow occurred because the result is too large (negative).

Remarks

Rounding on the division is toward zero. Division by zero is counted as an overflow condition.

Requirements

Windows Embedded CE Windows CE 2.12 and later
Windows Mobile Windows Mobile Version 5.0 and later
Note Microsoft DirectShow applications and DirectShow filters have different include file and Library requirements
For more information, see Setting Up the Build Environment,
Version 2.12 requires DXPAK 1.0 or later

See Also