java.lang.Object
- org.lwjgl.system.dyncall.DynCallback

```
public class DynCallback
extends java.lang.Object
```
Native bindings to \"dyncall_callback.h\".
The dyncallback dyncall library has an interface to create callback objects, that can be passed to functions as callback arguments. In other words, a pointer to the callback object can be "called", directly. The callback handler then allows iterating dynamically over the arguments once called back.

Field Summary

Fields
Modifier and Type	Field	Description
`static char`	`DCB_SIGCHAR_CC_ELLIPSIS DCB_SIGCHAR_CC_FASTCALL_GNU DCB_SIGCHAR_CC_FASTCALL_MS DCB_SIGCHAR_CC_PREFIX DCB_SIGCHAR_CC_STDCALL DCB_SIGCHAR_CC_THISCALL_MS`	Callback signatures.

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static boolean`	`dcbArgBool(long args)`	Returns the next `bool` argument.
`static byte`	`dcbArgChar(long args)`	Returns the next `char` argument.
`static double`	`dcbArgDouble(long args)`	Returns the next `double` argument.
`static float`	`dcbArgFloat(long args)`	Returns the next `float` argument.
`static int`	`dcbArgInt(long args)`	Returns the next `int` argument.
`static long`	`dcbArgLong(long args)`	Returns the next `long` argument.
`static long`	`dcbArgLongLong(long args)`	Returns the next `long long` argument.
`static long`	`dcbArgPointer(long args)`	Returns the next `pointer` argument.
`static short`	`dcbArgShort(long args)`	Returns the next `short` argument.
`static byte`	`dcbArgUChar(long args)`	Returns the next `unsigned char` argument.
`static int`	`dcbArgUInt(long args)`	Returns the next `unsigned int` argument.
`static long`	`dcbArgULong(long args)`	Returns the next `unsigned long` argument.
`static long`	`dcbArgULongLong(long args)`	Returns the next `unsigned long long` argument.
`static short`	`dcbArgUShort(long args)`	Returns the next `unsigned short` argument.
`static void`	`dcbFreeCallback(long pcb)`	Destroys and frees the callback object.
`static long`	`dcbGetUserData(long pcb)`	Returns a pointer to the `userdata` passed to the callback object on creation or initialization.
`static void`	`dcbInitCallback(long pcb, java.lang.CharSequence signature, long handler, long userdata)`	(Re)initializes a callback object.
`static void`	`dcbInitCallback(long pcb, java.nio.ByteBuffer signature, long handler, long userdata)`	(Re)initializes a callback object.
`static long`	`dcbNewCallback(java.lang.CharSequence signature, long funcptr, long userdata)`	Creates and initializes a new `Callback` object.
`static long`	`dcbNewCallback(java.nio.ByteBuffer signature, long funcptr, long userdata)`	Creates and initializes a new `Callback` object.
`static int`	`ndcbArgBool(long args)`	Unsafe version of: `ArgBool`
`static byte`	`ndcbArgChar(long args)`	Unsafe version of: `ArgChar`
`static double`	`ndcbArgDouble(long args)`	Unsafe version of: `ArgDouble`
`static float`	`ndcbArgFloat(long args)`	Unsafe version of: `ArgFloat`
`static int`	`ndcbArgInt(long args)`	Unsafe version of: `ArgInt`
`static long`	`ndcbArgLong(long args)`	Unsafe version of: `ArgLong`
`static long`	`ndcbArgLongLong(long args)`	Unsafe version of: `ArgLongLong`
`static long`	`ndcbArgPointer(long args)`	Unsafe version of: `ArgPointer`
`static short`	`ndcbArgShort(long args)`	Unsafe version of: `ArgShort`
`static byte`	`ndcbArgUChar(long args)`	Unsafe version of: `ArgUChar`
`static int`	`ndcbArgUInt(long args)`	Unsafe version of: `ArgUInt`
`static long`	`ndcbArgULong(long args)`	Unsafe version of: `ArgULong`
`static long`	`ndcbArgULongLong(long args)`	Unsafe version of: `ArgULongLong`
`static short`	`ndcbArgUShort(long args)`	Unsafe version of: `ArgUShort`
`static void`	`ndcbFreeCallback(long pcb)`	Unsafe version of: `FreeCallback`
`static long`	`ndcbGetUserData(long pcb)`	Unsafe version of: `GetUserData`
`static void`	`ndcbInitCallback(long pcb, long signature, long handler, long userdata)`	Unsafe version of: `InitCallback`
`static long`	`ndcbNewCallback(long signature, long funcptr, long userdata)`	Unsafe version of: `NewCallback`

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - DCB_SIGCHAR_CC_PREFIX, DCB_SIGCHAR_CC_ELLIPSIS, DCB_SIGCHAR_CC_STDCALL, DCB_SIGCHAR_CC_FASTCALL_GNU, DCB_SIGCHAR_CC_FASTCALL_MS, DCB_SIGCHAR_CC_THISCALL_MS
    
    Callback signatures.
- Method Detail
  - ndcbNewCallback
```
public static long ndcbNewCallback(long signature,
                                   long funcptr,
                                   long userdata)
```
    Unsafe version of: NewCallback
  - dcbNewCallback
```
public static long dcbNewCallback(java.nio.ByteBuffer signature,
                                  long funcptr,
                                  long userdata)

public static long dcbNewCallback(java.lang.CharSequence signature,
                                  long funcptr,
                                  long userdata)
```
    Creates and initializes a new Callback object.
    Use FreeCallback to destroy the Callback object.
    
    Parameters:
    
    signature - the function signature of the function to mimic
    
    funcptr - a pointer to a callback handler
    
    userdata - a pointer to custom data that might be useful in the handler
  - ndcbInitCallback
```
public static void ndcbInitCallback(long pcb,
                                    long signature,
                                    long handler,
                                    long userdata)
```
    Unsafe version of: InitCallback
  - dcbInitCallback
```
public static void dcbInitCallback(long pcb,
                                   java.nio.ByteBuffer signature,
                                   long handler,
                                   long userdata)

public static void dcbInitCallback(long pcb,
                                   java.lang.CharSequence signature,
                                   long handler,
                                   long userdata)
```
    (Re)initializes a callback object.
    
    Parameters:
    
    pcb - the callback object
    
    signature - the function signature of the function to mimic
    
    handler - a pointer to a callback handler
    
    userdata - a pointer to custom data that might be useful in the handler
  - ndcbFreeCallback
```
public static void ndcbFreeCallback(long pcb)
```
    Unsafe version of: FreeCallback
  - dcbFreeCallback
```
public static void dcbFreeCallback(long pcb)
```
    Destroys and frees the callback object.
    
    Parameters:
    
    pcb - the callback object
  - ndcbGetUserData
```
public static long ndcbGetUserData(long pcb)
```
    Unsafe version of: GetUserData
  - dcbGetUserData
```
public static long dcbGetUserData(long pcb)
```
    Returns a pointer to the userdata passed to the callback object on creation or initialization.
    
    Parameters:
    
    pcb - the callback object
  - ndcbArgBool
```
public static int ndcbArgBool(long args)
```
    Unsafe version of: ArgBool
  - dcbArgBool
```
public static boolean dcbArgBool(long args)
```
    Returns the next bool argument.
    
    Parameters:
    
    args - the function arguments
  - ndcbArgChar
```
public static byte ndcbArgChar(long args)
```
    Unsafe version of: ArgChar
  - dcbArgChar
```
public static byte dcbArgChar(long args)
```
    Returns the next char argument.
    
    Parameters:
    
    args - the function arguments
  - ndcbArgShort
```
public static short ndcbArgShort(long args)
```
    Unsafe version of: ArgShort
  - dcbArgShort
```
public static short dcbArgShort(long args)
```
    Returns the next short argument.
    
    Parameters:
    
    args - the function arguments
  - ndcbArgInt
```
public static int ndcbArgInt(long args)
```
    Unsafe version of: ArgInt
  - dcbArgInt
```
public static int dcbArgInt(long args)
```
    Returns the next int argument.
    
    Parameters:
    
    args - the function arguments
  - ndcbArgLong
```
public static long ndcbArgLong(long args)
```
    Unsafe version of: ArgLong
  - dcbArgLong
```
public static long dcbArgLong(long args)
```
    Returns the next long argument.
    
    Parameters:
    
    args - the function arguments
  - ndcbArgLongLong
```
public static long ndcbArgLongLong(long args)
```
    Unsafe version of: ArgLongLong
  - dcbArgLongLong
```
public static long dcbArgLongLong(long args)
```
    Returns the next long long argument.
    
    Parameters:
    
    args - the function arguments
  - ndcbArgUChar
```
public static byte ndcbArgUChar(long args)
```
    Unsafe version of: ArgUChar
  - dcbArgUChar
```
public static byte dcbArgUChar(long args)
```
    Returns the next unsigned char argument.
    
    Parameters:
    
    args - the function arguments
  - ndcbArgUShort
```
public static short ndcbArgUShort(long args)
```
    Unsafe version of: ArgUShort
  - dcbArgUShort
```
public static short dcbArgUShort(long args)
```
    Returns the next unsigned short argument.
    
    Parameters:
    
    args - the function arguments
  - ndcbArgUInt
```
public static int ndcbArgUInt(long args)
```
    Unsafe version of: ArgUInt
  - dcbArgUInt
```
public static int dcbArgUInt(long args)
```
    Returns the next unsigned int argument.
    
    Parameters:
    
    args - the function arguments
  - ndcbArgULong
```
public static long ndcbArgULong(long args)
```
    Unsafe version of: ArgULong
  - dcbArgULong
```
public static long dcbArgULong(long args)
```
    Returns the next unsigned long argument.
    
    Parameters:
    
    args - the function arguments
  - ndcbArgULongLong
```
public static long ndcbArgULongLong(long args)
```
    Unsafe version of: ArgULongLong
  - dcbArgULongLong
```
public static long dcbArgULongLong(long args)
```
    Returns the next unsigned long long argument.
    
    Parameters:
    
    args - the function arguments
  - ndcbArgFloat
```
public static float ndcbArgFloat(long args)
```
    Unsafe version of: ArgFloat
  - dcbArgFloat
```
public static float dcbArgFloat(long args)
```
    Returns the next float argument.
    
    Parameters:
    
    args - the function arguments
  - ndcbArgDouble
```
public static double ndcbArgDouble(long args)
```
    Unsafe version of: ArgDouble
  - dcbArgDouble
```
public static double dcbArgDouble(long args)
```
    Returns the next double argument.
    
    Parameters:
    
    args - the function arguments
  - ndcbArgPointer
```
public static long ndcbArgPointer(long args)
```
    Unsafe version of: ArgPointer
  - dcbArgPointer
```
public static long dcbArgPointer(long args)
```
    Returns the next pointer argument.
    
    Parameters:
    
    args - the function arguments

Class DynCallback

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

DCB_SIGCHAR_CC_PREFIX, DCB_SIGCHAR_CC_ELLIPSIS, DCB_SIGCHAR_CC_STDCALL, DCB_SIGCHAR_CC_FASTCALL_GNU, DCB_SIGCHAR_CC_FASTCALL_MS, DCB_SIGCHAR_CC_THISCALL_MS

Method Detail

ndcbNewCallback

dcbNewCallback

ndcbInitCallback

dcbInitCallback

ndcbFreeCallback

dcbFreeCallback

ndcbGetUserData

dcbGetUserData

ndcbArgBool

dcbArgBool

ndcbArgChar

dcbArgChar

ndcbArgShort

dcbArgShort

ndcbArgInt

dcbArgInt

ndcbArgLong

dcbArgLong

ndcbArgLongLong

dcbArgLongLong

ndcbArgUChar

dcbArgUChar

ndcbArgUShort

dcbArgUShort

ndcbArgUInt

dcbArgUInt

ndcbArgULong

dcbArgULong

ndcbArgULongLong

dcbArgULongLong

ndcbArgFloat

dcbArgFloat

ndcbArgDouble

dcbArgDouble

ndcbArgPointer

dcbArgPointer