Platform Package reference: Function EwGetUtf8StringLength()

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Platform Package reference

Function EwAlloc()

Function EwAddHeapMemoryPool()

Function EwAllocUserColor()

Function EwAnyPendingSignals()

Function EwBeginUpdate()

Function EwBeginUpdateArea()

Function EwColorToIndex()

Function EwCompString()

Function EwConfigViewport()

Function EwCreateBitmap()

Function EwDoneGraphicsEngine()

Function EwDoneHeap()

Function EwDoneViewport()

Function EwDumpHeap()

Function EwEnableGfxTaskTracing()

Function EwEndUpdate()

Function EwFindUserColor()

Function EwFree()

Function EwFreeBitmap()

Function EwFreeUserColor()

Function EwGetAutoObject()

Function EwGetHeapInfo()

Function EwGetLanguage()

Function EwGetStringLength()

Function EwGetUtf8StringLength()

Function EwGetStyles()

Function EwIndexToColor()

Function EwInitGraphicsEngine()

Function EwInitHeap()

Function EwInitViewport()

Function EwLockBitmap()

Function EwLockObject()

Function EwModifyBitmapPalette()

Function EwNewColor()

Function EwNewObject()

Function EwNewObjectIndirect()

Function EwNewPoint()

Function EwNewRect()

Function EwNewString()

Function EwNewStringAnsi()

Function EwNewStringChar()

Function EwNewStringUtf8()

Function EwNextTimerExpiration()

Function EwPrintPerfCounters()

Function EwPrintProfilerStatistic()

Function EwProcessSignals()

Function EwProcessTimers()

Function EwReclaimMemory()

Function EwResetPerfCounters()

Function EwSetLanguage()

Function EwSetStackBaseAddress()

Function EwSetStyles()

Function EwSetUserColor()

Function EwStringToAnsi()

Function EwStringToUtf8()

Function EwUnlockBitmap()

Function EwUnlockObject()

Function EwVerifyHeap()

Basic Data Type Definitions

Type XBitmapLock

Type XViewportProc

Error and Warning Codes

Platform Package reference: Function EwGetUtf8StringLength()

Description of the function EwGetUtf8StringLength() available in all Platform Packages for C compatible target systems. This function is intended to be used when integrating the Embedded Wizard created GUI application with the underlying graphics subsystem, graphics hardware or other external GUI applications coexisting on the same system.

Declaration

XInt32 EwGetUtf8StringLength( XString aString )

Parameters

aString

Pointer to the wide-character (16-bit per character) string to determinate its UTF-8 length (the number of bytes in UTF-8 format).

Discussion

The function EwGetUtf8StringLength() analyzes the characters in the given 16-bit wide-character string aString and estimates the length in bytes for a corresponding UTF-8 string without the zero terminator sign. This value can be used to reserve memory before using the function EwStringToUtf8(). If the string is empty, the function returns 0 (zero).