Class DynamicPalette

class DynamicPalette;

Description

Hooks to allow dynamic palette switching in 256 colour mode.

TRgb::Color256() transparently invokes hooks in this class. The behaviour of the system can be customized by replacing the implementation in palette.dll with device-specific functionality to switch the colour palette at run-time.

Members

Defined in DynamicPalette:
Color16array(), Color16inverse(), DefaultColor256Util(), EIndex0, EIndex1, EIndex2, EIndex4, EIndex5, SetColor256Util(), TIndex

static IMPORT_C const TColor256Util *DefaultColor256Util();

Description

Returns the current system palette. Depending on the implementation this value depends on the current color scheme set using SetColorScheme.

Return value

const TColor256Util * Current system palette.

static IMPORT_C void SetColor256Util(TIndex aIndex);

Description

Switches the device to use the specified colour palette.

The reference version provided does nothing, since only one palette is used in the reference implementation.

Parameters

TIndex aIndex The index number of the colour palette to use.

static IMPORT_C const TUint32 *Color16array();

Description

Return value

const TUint32 *

static IMPORT_C const TUint8 *Color16inverse();

Description

Return value

const TUint8 *

TIndex

Description

Stores the index values of the palettes defined. This enum may be as short or as long as desired - there is no requirement that the size of the enum in any given implementation be limited to the five sample values given in this example implementation.

EIndex0 A palette index number. EIndex1 A palette index number. EIndex2 A palette index number. EIndex4 A palette index number. EIndex5 A palette index number.