Construct a TDisplayConfiguration1 version object with all attributes undefined.

This can be used to create a specific version of configuration: TDisplayConfiguration config( TDisplayConfiguration1.Version() );

Constructor for passing through a version already supplied.

Generally used internally in the constructor chain.

Retrieves the resolution, if defined.

If the resolution is undefined, the parameter is left unchanged. A resolution of (0,0) means the display is disabled.

IsDefined TAttribute::EResolution

Retrieves the physical size of the display resolution area, in twips, if defined.

For displays that have a fixed size, or can report their size, the physical dimensions corresponding to the current resolution shall be defined. Where the display's physical size cannot be determined (such as with composite video output, or a projector) an arbitrary size shall be defined that reflects the pixel aspect ratio.

If the display is not connected or output is disabled, the physical size shall not be defined. If the physical size is undefined, the parameter is left unchanged.

IsDefined TAttribute::EResolutionTwips

Retrieves the rotation, if defined.

If the rotation is undefined, the parameter is left unchanged.

IsDefined TAttribute::ERotation

Defines the resolution for the display, in pixels.

This always corresponds to a rotation of ERotationNormal. If a display can be disabled, (0,0) can be used to do so. A display can be disabled if the resolution list includes (0,0).

Defines the physical size of the display resolution area, in twips.

Defines the rotation for the display.

The values that can be passed in here correspond directly to UI rotation values that can be passed in to CWsScreenDevice::SetScreenSizeAndRotation() , CWsScreenDevice::SetCurrentRotations() and so on, although the type is defined locally to avoid undesirable interdependencies in the interface. Variables of the two types may be freely cast to the other type.

CFbsBitGc::TGraphicsOrientation CWsScreenDevice

Compares two TDisplayConfiguration1 instances.

Generally used internally in the comparison chain. The two objects are equivalent if they have the same version, the same set of attributes defined and all the defined attributes are the same. Undefined attributes are not compared.

Defines possible rotation values.