COARefTime Class (Windows Embedded CE 6.0)

1/6/2010

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

Windows Embedded CE	Windows CE 2.12 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

See Also

Reference

DirectShow Classes