Class: TFrameBufferConfiguration

Declaration: DisplayConfiguration.h

Taxonomy Categories:

Member Functions:

Interface Category:

API.

Inherits From:

TDisplayDeviceConfiguration

Inherited By:

None.

Purpose:

Changes the configuration of a Frame Buffer device.

Instantiation:

Allocate on the heap or the stack.

Deriving Classes:

None, but others may be created.

Concurrency:

Not multithread safe.

Resource Use:

No special requirements.

Member Function: TFrameBufferConfiguration::TFrameBufferConfiguration

TFrameBufferConfiguration (TFrameBufferVideoDeviceHandle & aDevice)
TFrameBufferConfiguration (TDequeOf < TDisplayDeviceHandle > &)

Interface Category:

API.

Purpose:

Creates a frame buffer configuration change object for a single display.
Creates a frame buffer configuration change object for a deque of displays.

Calling Context:

Called to change a single display.
Called to change many displays.

Parameters:

TFrameBufferVideoDeviceHandle & displayToChange -The display to change.
TDequeOf < TDisplayDeviceHandle > & -The deque of Displays to change.

Return Value:

None.

Exceptions:

Throws no exceptions, passes all exceptions through.

Concurrency:

Not multithread safe.

Other Considerations:

None.

Member Function: TFrameBufferConfiguration::~TFrameBufferConfiguration

virtual ~ TFrameBufferConfiguration ()

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: TFrameBufferConfiguration::SetDepth

virtual void SetDepth (const TFrameBufferVideoDeviceDriver :: EFrameBufferDepths bitDepth, const DeviceNumberType DeviceNum =0)

Interface Category:

API.

Purpose:

Sets a new frame buffer pixel depth, measured in bits.

Calling Context:

Called to change the display depth.

Parameters:

const TFrameBufferVideoDeviceDriver :: EFrameBufferDepths bitDepth -The new depth for the frame buffer.
const DeviceNumberType DeviceNum =0 -The device to change.

Return Value:

None.

Exceptions:

Throws no exceptions, passes all exceptions through.

Concurrency:

Not multithread safe.

Other Considerations:

None.

Member Function: TFrameBufferConfiguration::SetPixelsPerInch

virtual void SetPixelsPerInch (const TGPoint & newPPI, const DeviceNumberType DeviceNum =0)

Interface Category:

API.

Purpose:

Sets the number of pixels per inch of the frame buffer device.

Calling Context:

Called to change the pixel density.

Parameters:

const TGPoint & newPPI -The new pixel density for both axes.
const DeviceNumberType DeviceNum =0 -The device to change.

Return Value:

None.

Exceptions:

Throws no exceptions, passes all exceptions through.

Concurrency:

Not multithread safe.

Other Considerations:

None.

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