CWsScreenDevice Class Reference

class CWsScreenDevice : public CBitmapDevice

Software device screen.

An object of this class can be used to enquire or set parameters of the software screen, and determine the physical limits of the device.

CWsScreenDevice gives access to the list of screen modes. These are the combinations of screen rotation and screen size supported by the device. One of them is selected as the current screen mode. The possible screen modes are initialised in wsini.ini.

CFbsScreenDevice

Inherits from

CWsScreenDevice
- CBitmapDevice
  - CGraphicsDevice
    - CBase

Public Member Functions
	CWsScreenDevice()
	CWsScreenDevice(RWsSession &)
	~CWsScreenDevice()
IMPORT_C TInt	AddFile(const TDesC &, TInt &)
IMPORT_C TInt	Construct()
IMPORT_C TInt	Construct(TInt)
IMPORT_C TInt	CopyScreenToBitmap(const CFbsBitmap *)
IMPORT_C TInt	CopyScreenToBitmap(const CFbsBitmap *, const TRect &)
IMPORT_C TInt	CreateContext(CGraphicsContext *&)
TInt	CreateContext(CWindowGc *&)
IMPORT_C TInt	CurrentScreenMode()
IMPORT_C TDisplayMode	DisplayMode()
IMPORT_C TInt	FontHeightInPixels(TInt, TInt)
IMPORT_C TInt	FontHeightInTwips(TInt, TInt)
IMPORT_C TSizeMode	GetCurrentScreenModeAttributes()
IMPORT_C TSize	GetCurrentScreenModeScale()
IMPORT_C TPoint	GetCurrentScreenModeScaledOrigin()
IMPORT_C TPoint	GetDefaultScreenModeOrigin()
IMPORT_C void	GetDefaultScreenSizeAndRotation(TPixelsTwipsAndRotation &)
IMPORT_C void	GetDefaultScreenSizeAndRotation(TPixelsAndRotation &)
IMPORT_C TInt	GetFontById(CFont *&, TUid, const TAlgStyle &)
IMPORT_C TAny *	GetInterface(TUint)
const TAny *	GetInterface(TUint)
IMPORT_C TInt	GetNearestFontInPixels(CFont *&, const TFontSpec &)
IMPORT_C TInt	GetNearestFontInTwips(CFont *&, const TFontSpec &)
IMPORT_C TInt	GetNearestFontToDesignHeightInPixels(CFont *&, const TFontSpec &)
IMPORT_C TInt	GetNearestFontToDesignHeightInTwips(CFont *&, const TFontSpec &)
IMPORT_C TInt	GetNearestFontToMaxHeightInPixels(CFont *&, const TFontSpec &, TInt)
IMPORT_C TInt	GetNearestFontToMaxHeightInTwips(CFont *&, const TFontSpec &, TInt)
IMPORT_C TInt	GetPalette(CPalette *&)
IMPORT_C void	GetPixel(TRgb &, const TPoint &)
IMPORT_C TInt	GetRotationsList(TInt, CArrayFixFlat< TInt > *)
IMPORT_C void	GetScanLine(TDes8 &, const TPoint &, TInt, TDisplayMode)
IMPORT_C TDisplayMode	GetScreenModeDisplayMode(const TInt &)
IMPORT_C TPoint	GetScreenModeOrigin(TInt)
IMPORT_C TSize	GetScreenModeScale(TInt)
IMPORT_C TPoint	GetScreenModeScaledOrigin(TInt)
IMPORT_C void	GetScreenModeSizeAndRotation(TInt, TPixelsTwipsAndRotation &)
IMPORT_C void	GetScreenModeSizeAndRotation(TInt, TPixelsAndRotation &)
IMPORT_C TInt	GetScreenNumber()
IMPORT_C TInt	GetScreenSizeModeList(RArray< TInt > *)
IMPORT_C TInt	HorizontalPixelsToTwips(TInt)
IMPORT_C TInt	HorizontalTwipsToPixels(TInt)
IMPORT_C TBool	IsCurrentModeDynamic()
IMPORT_C TBool	IsModeDynamic(TInt)
IMPORT_C TInt	NumScreenModes()
IMPORT_C TInt	NumTypefaces()
IMPORT_C void	PaletteAttributes(TBool &, TInt &)
IMPORT_C TRect	PointerRect()
IMPORT_C TBool	RectCompare(const TRect &, const TRect &)
IMPORT_C TBool	RectCompare(const TRect &, const TRect &, TUint)
IMPORT_C void	ReleaseFont(CFont *)
IMPORT_C void	RemoveFile(TInt)
IMPORT_C TScreenModeEnforcement	ScreenModeEnforcement()
IMPORT_C void	SetAppScreenMode(TInt)
IMPORT_C TInt	SetBackLight(TBool)
IMPORT_C void	SetCurrentRotations(TInt, CFbsBitGc::TGraphicsOrientation)
IMPORT_C void	SetCurrentScreenModeAttributes(const TSizeMode &)
IMPORT_C TInt	SetCustomPalette(const CPalette *)
IMPORT_C void	SetPalette(CPalette *)
IMPORT_C void	SetScreenMode(TInt)
IMPORT_C void	SetScreenModeEnforcement(TScreenModeEnforcement)
IMPORT_C void	SetScreenSizeAndRotation(const TPixelsTwipsAndRotation &)
IMPORT_C void	SetScreenSizeAndRotation(const TPixelsAndRotation &)
IMPORT_C TSize	SizeInPixels()
IMPORT_C TSize	SizeInTwips()
IMPORT_C void	TypefaceSupport(TTypefaceSupport &, TInt)
IMPORT_C TInt	VerticalPixelsToTwips(TInt)
IMPORT_C TInt	VerticalTwipsToPixels(TInt)

Private Member Functions
TSize	DisplaySizeInPixels()
TSize	PhysicalScreenSizeInTwips()
CFbsTypefaceStore *	TypeFaceStore()

Inherited Functions
	CBase::CBase()
	CBase::Delete(CBase *)
	CBase::Extension_(TUint,TAny &,TAny )
	CBase::operator new(TUint)
	CBase::operator new(TUint,TAny *)
	CBase::operator new(TUint,TLeave)
	CBase::operator new(TUint,TLeave,TUint)
	CBase::operator new(TUint,TUint)
	CBase::~CBase()
	CBitmapDevice::CreateBitmapContext(CBitmapContext *&)

Public Member Enumerations
enum	TSpriteInCompare { ERemoveSprite = 0, EIncludeSprite = 1, EIncludeTextCursor = 2 }

Private Attributes
TSize	iDisplaySizeInPixels
CScrDevExtension *	iExtension
TSize	iPhysicalScreenSizeInTwips

Constructor & Destructor Documentation

CWsScreenDevice()

IMPORT_C

CWsScreenDevice

(

)

CWsScreenDevice(RWsSession &)

IMPORT_C

CWsScreenDevice

(

RWsSession &

aWs

)

Parameters

RWsSession & aWs

~CWsScreenDevice()

IMPORT_C

~CWsScreenDevice

(

)

Member Functions Documentation

AddFile(const TDesC &, TInt &)

IMPORT_C TInt	AddFile	(	const TDesC &	aName,
			TInt &	aId
		)	[virtual]

Adds a font file to the device's typeface store. The specified font file must be accessible to any process, i.e. not located inside an application's private directory.

This pure virtual function is implemented in derived classes.

KErrNone, if successful; otherwise, another of the system-wide error codes.

Parameters

const TDesC & aName	The name of the font file.
TInt & aId	On return, contains an ID for the font file.

Construct()

IMPORT_C TInt

Construct

(

)

Construct(TInt)

IMPORT_C TInt

Construct

(

TInt

aDefaultScreenNumber

)

Parameters

TInt aDefaultScreenNumber

CopyScreenToBitmap(const CFbsBitmap *)

IMPORT_C TInt

CopyScreenToBitmap

(

const CFbsBitmap *

aBitmap

)

const

Parameters

const CFbsBitmap * aBitmap

CopyScreenToBitmap(const CFbsBitmap *, const TRect &)

IMPORT_C TInt	CopyScreenToBitmap	(	const CFbsBitmap *	aBitmap,
			const TRect &	aRect
		)	const

Parameters

const CFbsBitmap * aBitmap
const TRect & aRect

CreateContext(CGraphicsContext *&)

IMPORT_C TInt

CreateContext

(

CGraphicsContext *&

aGC

)

[virtual]

Creates a graphics context for the device.

KErrNone, if successful; otherwise, another of the system-wide error codes.

Parameters

CGraphicsContext *& aGC

On return, contains a pointer to the created graphics context.

CreateContext(CWindowGc *&)

TInt

CreateContext

(

CWindowGc *&

aGc

)

[inline]

Creates a graphics context for this device.

This function always causes a flush of the window server buffer.

KErrNone if successful, otherwise one of the system-wide error codes.

CGraphicsDevice::CreateContext()

Parameters

CWindowGc *& aGc

On successful return, contains a new graphics context referring to this screen device.

CurrentScreenMode()

IMPORT_C TInt

CurrentScreenMode

(

)

const

DisplayMode()

IMPORT_C TDisplayMode

DisplayMode

(

)

const [virtual]

Gets the display mode of the device.

The display mode of the device.

DisplaySizeInPixels()

TSize

DisplaySizeInPixels

(

)

const [private]

FontHeightInPixels(TInt, TInt)

IMPORT_C TInt	FontHeightInPixels	(	TInt	aTypefaceIndex,
			TInt	aHeightIndex
		)	const [virtual]

Gets the height, in pixels, of the specified typeface at one of its defined heights.

The typeface is identified by by an index. For a given typeface, there are a discrete number of heights; the specific height is also identified by an index.

The value returned is rounded up or down to the nearest font height in pixels.

This pure virtual function is implemented in derived classes.

The height of the font, in pixels.

TTypefaceSupport

CGraphicsDevice::NumTypefaces()

CGraphicsDevice::TypefaceSupport()

Parameters

TInt aTypefaceIndex	A typeface index number, in the range: 0 to (NumTypefaces() - 1).
TInt aHeightIndex	A font height index number, in the range: 0 to (iNumHeights - 1) where iNumHeights is a public data member of the TTypefaceSupport object returned by TypefaceSupport().

FontHeightInTwips(TInt, TInt)

IMPORT_C TInt	FontHeightInTwips	(	TInt	aTypefaceIndex,
			TInt	aHeightIndex
		)	const [virtual]

Get the height of a font in twips.

The font is identified by typeface and height.

The value returned is rounded up or down to the nearest font height in twips.

The height of the font, in twips.

Parameters

TInt aTypefaceIndex	An index identifying the typeface, in the range: 0 to (NumTypefaces() - 1).
TInt aHeightIndex	An index identifying the font height, in the range: 0 to (iNumHeights - 1). Note that iNumHeights is in the TTypefaceSupport object returned by TypefaceSupport().

GetCurrentScreenModeAttributes()

IMPORT_C TSizeMode

GetCurrentScreenModeAttributes

(

)

const

GetCurrentScreenModeScale()

IMPORT_C TSize

GetCurrentScreenModeScale

(

)

const

GetCurrentScreenModeScaledOrigin()

IMPORT_C TPoint

GetCurrentScreenModeScaledOrigin

(

)

const

GetDefaultScreenModeOrigin()

IMPORT_C TPoint

GetDefaultScreenModeOrigin

(

)

const

GetDefaultScreenSizeAndRotation(TPixelsTwipsAndRotation &)

IMPORT_C void

GetDefaultScreenSizeAndRotation

(

TPixelsTwipsAndRotation &

aSizeAndRotation

)

const

Parameters

TPixelsTwipsAndRotation & aSizeAndRotation

GetDefaultScreenSizeAndRotation(TPixelsAndRotation &)

IMPORT_C void

GetDefaultScreenSizeAndRotation

(

TPixelsAndRotation &

aSizeAndRotation

)

const

Parameters

TPixelsAndRotation & aSizeAndRotation

GetFontById(CFont *&, TUid, const TAlgStyle &)

IMPORT_C TInt	GetFontById	(	CFont *&	aFont,
			TUid	aUid,
			const TAlgStyle &	aAlgStyle
		)

Parameters

CFont *& aFont
TUid aUid
const TAlgStyle & aAlgStyle

GetInterface(TUint)

IMPORT_C TAny *

GetInterface

(

TUint

aInterfaceId

)

Parameters

TUint aInterfaceId

GetInterface(TUint)

const TAny *

GetInterface

(

TUint

aInterfaceId

)

const [inline]

Parameters

TUint aInterfaceId

GetNearestFontInPixels(CFont *&, const TFontSpec &)

IMPORT_C TInt	GetNearestFontInPixels	(	CFont *&	aFont,
			const TFontSpec &	aFontSpec
		)	[virtual]

Gets the font which is the nearest to the given font specification.

When the font is no longer needed, call ReleaseFont().

Note that this deprecated function is replaced by the new GetNearestFontToDesignHeightInPixels() yielding (virtually) the same result. However clients are strongly encouraged to use the new GetNearestFontToMaxHeightInPixels() function instead. This will guarantee that every character within any given text string will fit within the given amount of pixels, whereas the design height is an aesthetic unit decided by the font designer without strict physical meaning, which may result in cropped characters.

KErrNone if successful; a system-wide error code otherwise.

Use GetNearestFontToDesignHeightInPixels

Parameters

CFont *& aFont	On return, contains a pointer to the nearest font.
const TFontSpec & aFontSpec	The specification of the font to be matched.

GetNearestFontInTwips(CFont *&, const TFontSpec &)

IMPORT_C TInt	GetNearestFontInTwips	(	CFont *&	aFont,
			const TFontSpec &	aFontSpec
		)	[virtual]

Parameters

CFont *& aFont
const TFontSpec & aFontSpec

GetNearestFontToDesignHeightInPixels(CFont *&, const TFontSpec &)

IMPORT_C TInt	GetNearestFontToDesignHeightInPixels	(	CFont *&	,
			const TFontSpec &
		)	[virtual]

Gets the font which is the nearest to the given font specification.

When the font is no longer needed, call ReleaseFont().

This new function replaces the deprecated GetNearestFontInPixels() yielding (virtually) the same result. However clients are strongly encouraged to use the new GetNearestFontToMaxHeightInPixels() function instead. This will guarantee that every character within any given text string will fit within the given amount of pixels, whereas the design height is an aesthetic unit decided by the font designer without strict physical meaning, which may result in cropped characters.

KErrNone if successful; a system-wide error code otherwise.

Parameters

CFont *&
const TFontSpec &

GetNearestFontToDesignHeightInTwips(CFont *&, const TFontSpec &)

IMPORT_C TInt	GetNearestFontToDesignHeightInTwips	(	CFont *&	aFont,
			const TFontSpec &	aFontSpec
		)	[virtual]

Parameters

CFont *& aFont
const TFontSpec & aFontSpec

GetNearestFontToMaxHeightInPixels(CFont *&, const TFontSpec &, TInt)

IMPORT_C TInt	GetNearestFontToMaxHeightInPixels	(	CFont *&	,
			const TFontSpec &	,
			TInt
		)	[virtual]

Gets the font which is the nearest to the given font specification.

When the font is no longer needed, call ReleaseFont().

The font and bitmap server returns a pointer to the nearest matching font from those available. Matches to max height of font - this does its best to return a font that will fit within the maximum height specified (but note that variations due to hinting algorithms may rarely result in this height being exceeded by up to one pixel). Problems can also be encountered with bitmap fonts where the typeface exists but doesn't have a font small enough.

KErrNone if successful; a system-wide error code otherwise.

Parameters

CFont *&
const TFontSpec &
TInt

GetNearestFontToMaxHeightInTwips(CFont *&, const TFontSpec &, TInt)

IMPORT_C TInt	GetNearestFontToMaxHeightInTwips	(	CFont *&	aFont,
			const TFontSpec &	aFontSpec,
			TInt	aMaxHeight
		)	[virtual]

Parameters

CFont *& aFont
const TFontSpec & aFontSpec
TInt aMaxHeight

GetPalette(CPalette *&)

IMPORT_C TInt

GetPalette

(

CPalette *&

aPalette

)

const [virtual]

Gets the device's current palette.

This function is only supported if the device has a modifiable palette, which can be determined by calling PaletteAttributes().

KErrNone, if successful; otherwise, another of the system-wide error codes.

Parameters

CPalette *& aPalette

On return, holds the device's current palette.

GetPixel(TRgb &, const TPoint &)

IMPORT_C void	GetPixel	(	TRgb &	aColor,
			const TPoint &	aPixel
		)	const [virtual]

Gets the RGB colour of an individual pixel on a bitmapped graphics device.

This pure virtual function is implemented in derived classes.

Parameters

TRgb & aColor	On return, should contain the RGB colour of the pixel.
const TPoint & aPixel	The (x,y) co-ordinates of the pixel. The top left pixel is (0,0).

GetRotationsList(TInt, CArrayFixFlat< TInt > *)

IMPORT_C TInt	GetRotationsList	(	TInt	aMode,
			CArrayFixFlat< TInt > *	aRotationList
		)	const

Parameters

TInt aMode
CArrayFixFlat< TInt > * aRotationList

GetScanLine(TDes8 &, const TPoint &, TInt, TDisplayMode)

IMPORT_C void	GetScanLine	(	TDes8 &	aBuf,
			const TPoint &	aStartPixel,
			TInt	aLength,
			TDisplayMode	aDispMode
		)	const [virtual]

Copies a scanline into a buffer.

The pixels are converted from the display mode format on the bitmapped graphics device to the format of the specified device display mode.

By specifying the start pixel and the number of pixels, either the whole or a portion of a bitmapped graphics device pixel row may be copied.

This pure virtual function is implemented in derived classes.

Parameters

TDes8 & aBuf	An 8 bit modifiable descriptor buffer into which pixels are copied; it must be sufficiently large to store all the scanline pixels.
const TPoint & aStartPixel	The (x,y) co-ordinates of the first pixel of the bitmap scanline to be put into the buffer.
TInt aLength	The number of pixels to put into the buffer.
TDisplayMode aDispMode	The display mode into which to convert the pixels.

GetScreenModeDisplayMode(const TInt &)

IMPORT_C TDisplayMode

GetScreenModeDisplayMode

(

const TInt &

aMode

)

const

Parameters

const TInt & aMode

GetScreenModeOrigin(TInt)

IMPORT_C TPoint

GetScreenModeOrigin

(

TInt

aMode

)

const

Parameters

TInt aMode

GetScreenModeScale(TInt)

IMPORT_C TSize

GetScreenModeScale

(

TInt

aMode

)

const

Parameters

TInt aMode

GetScreenModeScaledOrigin(TInt)

IMPORT_C TPoint

GetScreenModeScaledOrigin

(

TInt

aMode

)

const

Parameters

TInt aMode

GetScreenModeSizeAndRotation(TInt, TPixelsTwipsAndRotation &)

IMPORT_C void	GetScreenModeSizeAndRotation	(	TInt	aMode,
			TPixelsTwipsAndRotation &	aSizeAndRotation
		)	const

Parameters

TInt aMode
TPixelsTwipsAndRotation & aSizeAndRotation

GetScreenModeSizeAndRotation(TInt, TPixelsAndRotation &)

IMPORT_C void	GetScreenModeSizeAndRotation	(	TInt	aMode,
			TPixelsAndRotation &	aSizeAndRotation
		)	const

Parameters

TInt aMode
TPixelsAndRotation & aSizeAndRotation

GetScreenNumber()

IMPORT_C TInt

GetScreenNumber

(

)

const

GetScreenSizeModeList(RArray< TInt > *)

IMPORT_C TInt

GetScreenSizeModeList

(

RArray< TInt > *

aModeList

)

const

Parameters

RArray< TInt > * aModeList

HorizontalPixelsToTwips(TInt)

IMPORT_C TInt

HorizontalPixelsToTwips

(

TInt

aPixels

)

const

Parameters

TInt aPixels

HorizontalTwipsToPixels(TInt)

IMPORT_C TInt

HorizontalTwipsToPixels

(

TInt

aTwips

)

const

Parameters

TInt aTwips

IsCurrentModeDynamic()

IMPORT_C TBool

IsCurrentModeDynamic

(

)

const

IsModeDynamic(TInt)

IMPORT_C TBool

IsModeDynamic

(

TInt

aSizeMode

)

const

Parameters

TInt aSizeMode

NumScreenModes()

IMPORT_C TInt

NumScreenModes

(

)

const

NumTypefaces()

IMPORT_C TInt

NumTypefaces

(

)

const [virtual]

Gets the number of typefaces supported by the graphics device.

The number of typefaces supported.

PaletteAttributes(TBool &, TInt &)

IMPORT_C void	PaletteAttributes	(	TBool &	aModifiable,
			TInt &	aNumEntries
		)	const [virtual]

Gets the palette attributes of the device.

Parameters

TBool & aModifiable	On return, holds information on whether or not the device's palette is modifiable (ETrue) or fixed (EFalse).
TInt & aNumEntries	On return, holds the number of entries in the device's palette.

PhysicalScreenSizeInTwips()

TSize

PhysicalScreenSizeInTwips

(

)

const [private]

PointerRect()

IMPORT_C TRect

PointerRect

(

)

const

RectCompare(const TRect &, const TRect &)

IMPORT_C TBool	RectCompare	(	const TRect &	aRect1,
			const TRect &	aRect2
		)	const

Parameters

const TRect & aRect1
const TRect & aRect2

RectCompare(const TRect &, const TRect &, TUint)

IMPORT_C TBool	RectCompare	(	const TRect &	aRect1,
			const TRect &	aRect2,
			TUint	aFlags
		)	const

Parameters

const TRect & aRect1
const TRect & aRect2
TUint aFlags

ReleaseFont(CFont *)

IMPORT_C void

ReleaseFont

(

CFont *

aFont

)

Parameters

CFont * aFont

RemoveFile(TInt)

IMPORT_C void

RemoveFile

(

TInt

aId = 0

)

[virtual]

Removes a font file from the font store.

This pure virtual function is implemented in derived classes.

Parameters

TInt aId = 0

The ID of the font file to be removed. The default is 0.

ScreenModeEnforcement()

IMPORT_C TScreenModeEnforcement

ScreenModeEnforcement

(

)

const

SetAppScreenMode(TInt)

IMPORT_C void

SetAppScreenMode

(

TInt

aMode

)

Parameters

TInt aMode

SetBackLight(TBool)

IMPORT_C TInt

SetBackLight

(

TBool

aBackLight

)

Parameters

TBool aBackLight

SetCurrentRotations(TInt, CFbsBitGc::TGraphicsOrientation)

IMPORT_C void	SetCurrentRotations	(	TInt	aMode,
			CFbsBitGc::TGraphicsOrientation	aRotation
		)	const

Parameters

TInt aMode
CFbsBitGc::TGraphicsOrientation aRotation

SetCurrentScreenModeAttributes(const TSizeMode &)

IMPORT_C void

SetCurrentScreenModeAttributes

(

const TSizeMode &

aModeAtt

)

Parameters

const TSizeMode & aModeAtt

SetCustomPalette(const CPalette *)

IMPORT_C TInt

SetCustomPalette

(

const CPalette *

aPalette

)

Parameters

const CPalette * aPalette

SetPalette(CPalette *)

IMPORT_C void

SetPalette

(

CPalette *

aPalette

)

[virtual]

Sets the device's palette.

Setting the palette is only possible if the device has a modifiable palette, which can be determined by calling PaletteAttributes().

Parameters

CPalette * aPalette

The new palette for the device.

SetScreenMode(TInt)

IMPORT_C void

SetScreenMode

(

TInt

aMode

)

Parameters

TInt aMode

SetScreenModeEnforcement(TScreenModeEnforcement)

IMPORT_C void

SetScreenModeEnforcement

(

TScreenModeEnforcement

aMode

)

const

Parameters

TScreenModeEnforcement aMode

SetScreenSizeAndRotation(const TPixelsTwipsAndRotation &)

IMPORT_C void

SetScreenSizeAndRotation

(

const TPixelsTwipsAndRotation &

aSizeAndRotation

)

Parameters

const TPixelsTwipsAndRotation & aSizeAndRotation

SetScreenSizeAndRotation(const TPixelsAndRotation &)

IMPORT_C void

SetScreenSizeAndRotation

(

const TPixelsAndRotation &

aSizeAndRotation

)

Parameters

const TPixelsAndRotation & aSizeAndRotation

SizeInPixels()

IMPORT_C TSize

SizeInPixels

(

)

const [virtual]

Gets the size of the device area in pixels.

The width and height of the device area, in pixels

SizeInTwips()

IMPORT_C TSize

SizeInTwips

(

)

const [virtual]

Gets the size of the device area in twips.

The width and height of the device area, in twips

TypeFaceStore()

CFbsTypefaceStore *

TypeFaceStore

(

)

const [private]

TypefaceSupport(TTypefaceSupport &, TInt)

IMPORT_C void	TypefaceSupport	(	TTypefaceSupport &	aTypefaceSupport,
			TInt	aTypefaceIndex
		)	const [virtual]

Gets typeface information for a specified typeface.

This information is returned in aTypefaceSupport, and includes:

the typeface name and typeface attributes

the number of font heights

the maximum and minimum font heights

whether it is a scalable typeface

NumTypefaces()

Parameters

TTypefaceSupport & aTypefaceSupport	On return, contains the typeface information.
TInt aTypefaceIndex	A typeface index number, in the range: zero to (NumTypefaces() - 1).

VerticalPixelsToTwips(TInt)

IMPORT_C TInt

VerticalPixelsToTwips

(

TInt

aPixels

)

const

Parameters

TInt aPixels

VerticalTwipsToPixels(TInt)

IMPORT_C TInt

VerticalTwipsToPixels

(

TInt

aTwips

)

const

Parameters

TInt aTwips

Member Enumerations Documentation

Enum TSpriteInCompare

Whether or not to include sprites when comparing areas of the screen

Enumerators

ERemoveSprite = 0	This enum can be specified as the 3rd parameter to CWsScreenDevice::RectCompare(const TRect &aRect1, const TRect &aRect2,TUint aFlags). When called with the value ERemoveSprite if there are any sprites visible in the areas of the screen being compared then these will not be included in the comparison. The function CWsScreenDevice::RectCompare(const TRect &aRect1,const TRect &aRect2) will not include sprites in the comparison.
EIncludeSprite = 1	This enum can be specified as the 3rd parameter to CWsScreenDevice::RectCompare(const TRect &aRect1, const TRect &aRect2,TUint aFlags). When called with the value EIncludeSprite if there are any sprites visible in the areas of the screen being compared then these will be included in the comparison.
EIncludeTextCursor = 2	This enum can be specified as the 3rd parameter to CWsScreenDevice::RectCompare(const TRect &aRect1, const TRect &aRect2,TUint aFlags). When called with the value EIncludeTextCursor if there are any text cursors visible in the areas of the screen being compared then these will be included in the comparison.

Member Data Documentation

TSize iDisplaySizeInPixels

TSize

iDisplaySizeInPixels

[private]

CScrDevExtension * iExtension

CScrDevExtension *

iExtension

[private]

TSize iPhysicalScreenSizeInTwips

TSize

iPhysicalScreenSizeInTwips

[private]