Class DynamicPalette

class DynamicPalette;

Description

Hooks to allow dynamic palette switching in 256 colour mode.

TRgb::Color256(TInt) 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()Returns the current system palette. Depending on the implementation this value d...
• EIndex0A palette index number.
• EIndex1A palette index number.
• EIndex2A palette index number.
• EIndex4A palette index number.
• EIndex5A palette index number.
• SetColor256Util(TIndex)Switches the device to use the specified colour palette.
• TIndexStores the index values of the palettes defined. This enum may be as short or as...

IMPORT_C static 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.

IMPORT_C static 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

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

IMPORT_C static const TUint32* Color16array();

Description

Return value

const TUint32 *

IMPORT_C static 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.