Class: TPrintDeviceChannelException

Declaration: PrintingExceptions.h

Taxonomy Categories:

Member Functions:

Interface Category:

API.

Inherits From:

TPrintingException

Inherited By:

TStandardPrintDeviceChannelException

Purpose:

Abstract base class for device channel errors.

Instantiation:

Allocate on the heap or the stack.

Deriving Classes:

Derive from this class to provide exceptions for specific device channel problems. This class is intended mainly for printer handler developers who provide TPrinter classes or printer handlers. Clients should provide a Throw member function and probably a GetReason (or equivalent) error code function.

Concurrency:

Multithread safe.

Resource Use:

No special requirements.

Member Function: TPrintDeviceChannelException::~TPrintDeviceChannelException

virtual ~ TPrintDeviceChannelException ()

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:

Multithread safe.

Other Considerations:

None.

Member Function: TPrintDeviceChannelException::TPrintDeviceChannelException

TPrintDeviceChannelException ()
TPrintDeviceChannelException (unsigned long whatHappened)
TPrintDeviceChannelException (const TPrintDeviceChannelException & copy)

Interface Category:

API.

Purpose:

Default constructor.
Constructor for creating a specific type of exception.
Copy constructor.

Calling Context:

Called by the stream-in operators.
Called to create a specific type of exception.
Called to copy an object.

Parameters:

Takes no parameters.
unsigned long whatHappened -The exception type.
const TPrintDeviceChannelException & copy -The object to copy.

Return Value:

None.

Exceptions:

Throws no exceptions, passes all exceptions through.

Concurrency:

Multithread safe.

Other Considerations:

None.

Member Function: TPrintDeviceChannelException::operator=

TPrintDeviceChannelException & operator =(const TPrintDeviceChannelException & copy)

Interface Category:

API.

Purpose:

Assignment operator.

Calling Context:

Called when an object is assigned to another compatible object.

Parameters:

const TPrintDeviceChannelException & copy -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:

Multithread safe.

Other Considerations:

None.

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