Patchable Constants

From version 9.3 of Symbian OS, DLLs can export certain constants. These are referred to as patchable constants, and you can change their values when the DLLs from which they are exported are incorporated into a ROM image.

This gives you the ability to create a variety of ROM images with constants of different values without the need to change any source code nor to rebuild the DLLs.

You change the value of a constant when you build your ROM image by adding the patchdata keyword into your .oby file.

See : Symbian^3 Tools Guide > Building.

• Patchable Constants: KHeapMinCellSize
  
• Patchable Constants: KHeapShrinkHysRatio
  
• Patchable Constants: KApaLoadDataRecognizersOnDemand
  
• Patchable Constants: KApaDrivesToMonitor
  
• Patchable Constants: KApaUnloadRecognizersTimeout
  
• Patchable Constants: KApaLoadMbmIconsOnDemand
  
• Patchable Constants: KListImplBufferSize
  
• Patchable Constants: KCafLoadPostProductionAgents
  
• Patchable Constants: KCustomResolverCacheSize
  
• Patchable Constants: KCustomResolverCacheTimeout
  
• Patchable Constants: KEikAlarmDefaultSnoozeInMinutes
  
• Patchable Constants: KFbServLargeChunkGrowByShifter
  
• Patchable Constants: KFbServLargeChunkMaxVirtualSize
  
• Patchable Constants: KFbServLargeChunkMinPhysicalSize
  
• Patchable Constants: KFbServLargeChunkMinVirtualSize
  
• Patchable Constants: KFbServLargeChunkSizeShifter
  
• Patchable Constants: KFbServSharedHeapMaxSize
  
• Patchable Constants: KMBufCacheLineSize
  
• Patchable Constants: KMinApplicationStackSize
  
• Patchable Constants: KDiscoveryDisabledDriveList
  
• Patchable Constants: KNumberOfContactsToReadPerMerge
  
• Patchable Constants: KContactsModelSqliteDbCacheSize
  
• Patchable Constants: KShtdwnTimeoutBase
  
• Patchable Constants: KShtdwnTimeoutClient