Class: TGrayMaximumTransferMode

Declaration: GrayTransferModes.h

Taxonomy Categories:

Member Functions:

Interface Category:

API.

Inherits From:

TTransferMode

Inherited By:

None.

Purpose:

TGrayMaximumTransferMode is a concrete class, derived from TTransferMode, that yields a grayscale result given a source color and a destination color. The resulting grayscale value is the greater of the source's and destination's grayscale values. (The source and destination need not be grayscale colors, but the resulting color is always a gray.) Similarly, the transparency value of the result is the greater of the source's and destination's transparency values.

Instantiation:

Allocate on the heap or the stack.

Deriving Classes:

None.

Concurrency:

Not multithread safe.

Resource Use:

No special requirements.

Member Function: TGrayMaximumTransferMode::TGrayMaximumTransferMode

TGrayMaximumTransferMode ()
TGrayMaximumTransferMode (const TGrayMaximumTransferMode &)

Interface Category:

API.

Purpose:

Default constructor.
Copy constructor.

Calling Context:

Called by the stream-in operators. You can also call this constructor directly.
Called to copy an object.

Parameters:

Takes no parameters.
const TGrayMaximumTransferMode & -The object to be copied.

Return Value:

None.

Exceptions:

Throws no exceptions, passes all exceptions through.

Concurrency:

Not multithread safe.

Other Considerations:

None.

Member Function: TGrayMaximumTransferMode::~TGrayMaximumTransferMode

virtual ~ TGrayMaximumTransferMode ()

Interface Category:

API.

Purpose:

Destructor.

Calling Context:

Called to destroy an object.

Parameters:

Takes no parameters.

Return Value:

None.

Exceptions:

Throws no exceptions, passes all exceptions through.

Concurrency:

Not multithread safe.

Other Considerations:

None.

Member Function: TGrayMaximumTransferMode::GetResultingColor

virtual void GetResultingColor (const TColor & sourceColor, const TColor & destColor, TColor & resultingColor) const

Interface Category:

API.

Purpose:

Returns the greater of the source's and destination's grayscale value and transparency value in a TColor object. All parameters are TColor objects.

Calling Context:

Call this function directly.

Parameters:

const TColor & sourceColor -One of the colors to compare.
const TColor & destColor -The other color to compare.
TColor & resultingColor -The resulting grayscale color, returned as TColor object.

Return Value:

None.

Exceptions:

Throws no exceptions, passes all exceptions through.

Concurrency:

Not multithread safe.

Other Considerations:

None.

Member Function: TGrayMaximumTransferMode::GetMaximumResult

static void GetMaximumResult (const TGrayColor & sourceColor, const TGrayColor & destColor, TGrayColor & resultingColor)

Interface Category:

API.

Purpose:

Returns the greater of the source's and destination's grayscale value and transparency value in a TColor object. All parameters are TGrayColor objects.

Calling Context:

Call this function directly.

Parameters:

const TGrayColor & sourceColor -One of the colors to compare.
const TGrayColor & destColor -The other color to compare.
TGrayColor & resultingColor -The resulting grayscale color, returned as TGrayColor object.

Return Value:

None.

Exceptions:

Throws no exceptions, passes all exceptions through.

Concurrency:

Not multithread safe.

Other Considerations:

None.

Member Function: TGrayMaximumTransferMode::operator=

TGrayMaximumTransferMode & operator =(const TGrayMaximumTransferMode & source)

Interface Category:

API.

Purpose:

Assignment operator.

Calling Context:

Call this function by using the operator in an assignment statement.

Parameters:

const TGrayMaximumTransferMode & source -The object to be copied.

Return Value:

A non-const reference to the left-hand side object.

Exceptions:

Throws no exceptions, passes all exceptions through.

Concurrency:

Not multithread safe.

Other Considerations:

None.

Member Function: TGrayMaximumTransferMode::operator>>=

virtual TStream & operator >>=(TStream & towhere) const

Interface Category:

API.

Purpose:

Stream-out operator.

Calling Context:

Called to stream out data.

Parameters:

TStream & towhere -The stream that the object streams itself out to.

Return Value:

Returns a reference to the stream the object streams itself out to.

Exceptions:

Throws no exceptions, passes all exceptions through.

Concurrency:

Not multithread safe.

Other Considerations:

None.

Member Function: TGrayMaximumTransferMode::operator<<=

virtual TStream & operator <<= (TStream & fromwhere)

Interface Category:

API.

Purpose:

Stream-in operator.

Calling Context:

Called to stream in data.

Parameters:

TStream & fromwhere -The stream that the object streams itself in from.

Return Value:

Returns a reference to the stream the object streams itself in from.

Exceptions:

Throws no exceptions, passes all exceptions through.

Concurrency:

Not multithread safe.

Other Considerations:

None.

Member Function: TGrayMaximumTransferMode::TemporaryTypeID

virtual ETransferModeClassID TemporaryTypeID () const

Interface Category:

API.

Purpose:

Returns the type of transfer mode this class represents.

Calling Context:

Call this function directly.

Parameters:

Takes no parameters.

Return Value:

Returns an ETransferModeClassID with value kGrayMaximumTransferMode.

Exceptions:

Throws no exceptions, passes all exceptions through.

Concurrency:

Not multithread safe.

Other Considerations:

None.

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