llMulDiv (Compact 2013)
3/26/2014
This function multiplies a by b, adds rnd to 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
Header |
dshow.h |
Library |
Strmiids.lib |