COARefTime Class (Compact 2013)

3/26/2014

CRefTime Class

**     COARefTime**

This class converts between the Automation-compatible REFTIME type and the REFERENCE_TIME type used within and between filters.

Time parameters within the control interfaces are represented as double values, containing a fractional number of seconds.

Interfaces supported between and within filters use a 64-bit LONGLONG type containing the time in 100-nanosecond units.

Filters use this class to convert between the two formats. It is derived from CRefTime and thus is a LONGLONG, but it can be constructed from and assigned double values.

Member Functions

Member function	Description
COARefTime	Constructs a COARefTime object.

Operators

Operator	Description
double	Returns the reference time as a double value.
Operator =	Copy constructor for the COARefTime class.
Operator ==	Tests for equality between COARefTime objects.
Operator !=	Tests for inequality between COARefTime objects.
Operator <	Tests if one COARefTime object is less than another COARefTime object.
Operator >	Tests if one COARefTime object is greater than another COARefTime object.
Operator <=	Tests if one COARefTime object is less than or equal to another COARefTime object.
Operator >=	Tests if one COARefTime object is greater than or equal to another COARefTime object.
Operator +	Adds two COARefTime objects.
Operator -	Subtracts one COARefTime object from another COARefTime object.
Operator +=	Adds two COARefTime objects and makes this object equal to the result.
Operator -=	Subtracts one COARefTime object from another COARefTime object and makes this object equal to the result.
Operator *	Multiplies two COARefTime objects.
Operator /	Divides one COARefTime object by another COARefTime object.

Requirements

Header	dshow.h, Streams.h
Library	ole32.lib, Ole32auth.lib, Strmbase.lib, Strmiids.lib, uuid.lib

See Also

Reference

DirectShow Classes