Package com.sun.jna.ptr
Class ByReference
java.lang.Object
com.sun.jna.PointerType
com.sun.jna.ptr.ByReference
- All Implemented Interfaces:
NativeMapped
- Direct Known Subclasses:
BaseTSD.ULONG_PTRByReference,ByteByReference,DoubleByReference,FloatByReference,HighLevelMonitorConfigurationAPI.MC_COLOR_TEMPERATURE.ByReference,HighLevelMonitorConfigurationAPI.MC_DISPLAY_TECHNOLOGY_TYPE.ByReference,IntByReference,LibCAPI.size_t.ByReference,LongByReference,LowLevelMonitorConfigurationAPI.MC_VCP_CODE_TYPE.ByReference,NativeLongByReference,OaIdl._VARIANT_BOOLByReference,OaIdl.DISPIDByReference,OaIdl.MEMBERIDByReference,OaIdl.VARIANT_BOOLByReference,PointerByReference,ShortByReference,WinDef.BOOLByReference,WinDef.CHARByReference,WinDef.DWORDByReference,WinDef.LONGByReference,WinDef.LONGLONGByReference,WinDef.SCODEByReference,WinDef.UINTByReference,WinDef.ULONGByReference,WinDef.ULONGLONGByReference,WinDef.USHORTByReference,WinDef.WORDByReference,WinNT.HANDLEByReference,WinNT.PACLByReference,WinNT.PSIDByReference,WinReg.HKEYByReference,WTypes.BSTRByReference,WTypes.VARTYPEByReference,X11.AtomByReference,X11.WindowByReference
Provides generic "pointer to type" functionality, often used in C code to
return values to the caller in addition to a function result.
Derived classes must define setValue(<T>) and
<T> getValue() methods which write to/read from the
allocated memory.
This class derives from PointerType instead of Memory in order to restrict
the API to only getValue/setValue.
NOTE: this class would ideally be replaced by a generic.
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Constructor Summary
ConstructorsModifierConstructorDescriptionprotectedByReference(int dataSize) Allocates memory at this pointer, to contain the pointed-to value. -
Method Summary
Methods inherited from class com.sun.jna.PointerType
equals, fromNative, getPointer, hashCode, nativeType, setPointer, toNative
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Constructor Details
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ByReference
protected ByReference(int dataSize) Allocates memory at this pointer, to contain the pointed-to value.- Parameters:
dataSize- The number of bytes to allocate. Must match the byte size ofTin the derived classsetValue(<T>)and<T> getValue()methods.
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Method Details
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toString
- Overrides:
toStringin classPointerType
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