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 and 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 and 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 int`	`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 int`	`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.nio.ByteBuffer signature, long handler, long userdata)` (Re)initializes a callback object.
`static void`	`dcbInitCallback(long pcb, java.lang.CharSequence signature, long handler, long userdata)` (Re)initializes a callback object.
`static long`	`dcbNewCallback(java.nio.ByteBuffer signature, long funcptr, long userdata)` Creates and initializes a new `Callback` object.
`static long`	`dcbNewCallback(java.lang.CharSequence signature, long funcptr, long userdata)` Creates and initializes a new `Callback` object.

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
  - 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
  - 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
  - dcbFreeCallback
```
public static void dcbFreeCallback(long pcb)
```
    Destroys and frees the callback object.
    
    Parameters:
    
    pcb - the callback object
  - 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
  - dcbArgBool
```
public static boolean dcbArgBool(long args)
```
    Returns the next bool argument.
    
    Parameters:
    
    args - the function arguments
  - dcbArgChar
```
public static byte dcbArgChar(long args)
```
    Returns the next char argument.
    
    Parameters:
    
    args - the function arguments
  - dcbArgShort
```
public static short dcbArgShort(long args)
```
    Returns the next short argument.
    
    Parameters:
    
    args - the function arguments
  - dcbArgInt
```
public static int dcbArgInt(long args)
```
    Returns the next int argument.
    
    Parameters:
    
    args - the function arguments
  - dcbArgLong
```
public static int dcbArgLong(long args)
```
    Returns the next long argument.
    
    Parameters:
    
    args - the function arguments
  - dcbArgLongLong
```
public static long dcbArgLongLong(long args)
```
    Returns the next long long argument.
    
    Parameters:
    
    args - the function arguments
  - dcbArgUChar
```
public static byte dcbArgUChar(long args)
```
    Returns the next unsigned char argument.
    
    Parameters:
    
    args - the function arguments
  - dcbArgUShort
```
public static short dcbArgUShort(long args)
```
    Returns the next unsigned short argument.
    
    Parameters:
    
    args - the function arguments
  - dcbArgUInt
```
public static int dcbArgUInt(long args)
```
    Returns the next unsigned int argument.
    
    Parameters:
    
    args - the function arguments
  - dcbArgULong
```
public static int dcbArgULong(long args)
```
    Returns the next unsigned long argument.
    
    Parameters:
    
    args - the function arguments
  - dcbArgULongLong
```
public static long dcbArgULongLong(long args)
```
    Returns the next unsigned long long argument.
    
    Parameters:
    
    args - the function arguments
  - dcbArgFloat
```
public static float dcbArgFloat(long args)
```
    Returns the next float argument.
    
    Parameters:
    
    args - the function arguments
  - dcbArgDouble
```
public static double dcbArgDouble(long args)
```
    Returns the next double argument.
    
    Parameters:
    
    args - the function arguments
  - 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

dcbNewCallback

dcbInitCallback

dcbFreeCallback

dcbGetUserData

dcbArgBool

dcbArgChar

dcbArgShort

dcbArgInt

dcbArgLong

dcbArgLongLong

dcbArgUChar

dcbArgUShort

dcbArgUInt

dcbArgULong

dcbArgULongLong

dcbArgFloat

dcbArgDouble

dcbArgPointer