java.lang.Object
- org.lwjgl.system.Pointer.Default
- - org.lwjgl.system.Struct
  - - org.lwjgl.system.jawt.JAWTDrawingSurface

All Implemented Interfaces:

Pointer
```
public class JAWTDrawingSurface
extends Struct
```
Structure for containing the underlying drawing information of a component.
All operations on a JAWT_DrawingSurface MUST be performed from the same thread as the call to GetDrawingSurface.

Member documentation
- env – Cached reference to the Java environment of the calling thread.
  If Lock(), Unlock(), GetDrawingSurfaceInfo() or FreeDrawingSurfaceInfo() are called from a different thread, this data member should be set before calling those functions.
- target – Cached reference to the target object.
Layout
```
 struct JAWT_DrawingSurface {
     JNIEnv * env;
     jobject target;
     void * Lock;
     void * GetDrawingSurfaceInfo;
     void * FreeDrawingSurfaceInfo;
     void * Unlock;
 }
```

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static class JAWTDrawingSurface.Buffer
An array of JAWTDrawingSurface structs.
- Nested classes/interfaces inherited from interface org.lwjgl.system.Pointer
  Pointer.Default

Field Summary

Fields
Modifier and Type	Field	Description
`static int`	`ALIGNOF`	The struct alignment in bytes.
`static int`	`ENV FREEDRAWINGSURFACEINFO GETDRAWINGSURFACEINFO LOCK`	The struct member offsets.
`static int`	`SIZEOF`	The struct size in bytes.
`static int`	`TARGET UNLOCK`	The struct member offsets.

Fields inherited from interface org.lwjgl.system.Pointer
BITS32, BITS64, CLONG_SHIFT, CLONG_SIZE, POINTER_SHIFT, POINTER_SIZE

Constructor Summary

Constructors
Constructor	Description
`JAWTDrawingSurface(java.nio.ByteBuffer container)`	Creates a `JAWTDrawingSurface` instance at the current position of the specified `ByteBuffer` container.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static JAWTDrawingSurface`	`create(long address)`	Returns a new `JAWTDrawingSurface` instance for the specified memory address.
`static JAWTDrawingSurface.Buffer`	`create(long address, int capacity)`	Create a `JAWTDrawingSurface.Buffer` instance at the specified memory.
`static JAWTDrawingSurface`	`createSafe(long address)`	Like `create`, but returns `null` if `address` is `NULL`.
`static JAWTDrawingSurface.Buffer`	`createSafe(long address, int capacity)`	Like `create`, but returns `null` if `address` is `NULL`.
`long`	`env()`	Returns the value of the `env` field.
`long`	`FreeDrawingSurfaceInfo()`	Returns the value of the `FreeDrawingSurfaceInfo` field.
`long`	`GetDrawingSurfaceInfo()`	Returns the value of the `GetDrawingSurfaceInfo` field.
`long`	`Lock()`	Returns the value of the `Lock` field.
`static long`	`nenv(long struct)`	Unsafe version of `env()`.
`static long`	`nFreeDrawingSurfaceInfo(long struct)`	Unsafe version of `FreeDrawingSurfaceInfo()`.
`static long`	`nGetDrawingSurfaceInfo(long struct)`	Unsafe version of `GetDrawingSurfaceInfo()`.
`static long`	`nLock(long struct)`	Unsafe version of `Lock()`.
`static long`	`ntarget(long struct)`	Unsafe version of `target()`.
`static long`	`nUnlock(long struct)`	Unsafe version of `Unlock()`.
`int`	`sizeof()`	Returns `sizeof(struct)`.
`long`	`target()`	Returns the value of the `target` field.
`long`	`Unlock()`	Returns the value of the `Unlock` field.

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

Methods inherited from class org.lwjgl.system.Pointer.Default
address, equals, hashCode, toString

Methods inherited from class org.lwjgl.system.Struct
clear, free, isNull

- Field Detail
  - SIZEOF
    
    The struct size in bytes.
  - ALIGNOF
    
    The struct alignment in bytes.
  - ENV, TARGET, LOCK, GETDRAWINGSURFACEINFO, FREEDRAWINGSURFACEINFO, UNLOCK
    
    The struct member offsets.
- Constructor Detail
  - JAWTDrawingSurface
```
public JAWTDrawingSurface(java.nio.ByteBuffer container)
```
    Creates a JAWTDrawingSurface instance at the current position of the specified ByteBuffer container. Changes to the buffer's content will be visible to the struct instance and vice versa.
    The created instance holds a strong reference to the container object.
- Method Detail
  - sizeof
```
public int sizeof()
```
    Description copied from class: Struct
    
    Returns sizeof(struct).
    
    Specified by:
    
    sizeof in class Struct
  - env
```
public long env()
```
    Returns the value of the env field.
  - target
```
public long target()
```
    Returns the value of the target field.
  - Lock
```
public long Lock()
```
    Returns the value of the Lock field.
  - GetDrawingSurfaceInfo
```
public long GetDrawingSurfaceInfo()
```
    Returns the value of the GetDrawingSurfaceInfo field.
  - FreeDrawingSurfaceInfo
```
public long FreeDrawingSurfaceInfo()
```
    Returns the value of the FreeDrawingSurfaceInfo field.
  - Unlock
```
public long Unlock()
```
    Returns the value of the Unlock field.
  - create
```
public static JAWTDrawingSurface create(long address)
```
    Returns a new JAWTDrawingSurface instance for the specified memory address.
  - createSafe
```
@Nullable
public static JAWTDrawingSurface createSafe(long address)
```
    Like create, but returns null if address is NULL.
  - create
```
public static JAWTDrawingSurface.Buffer create(long address,
                                               int capacity)
```
    Create a JAWTDrawingSurface.Buffer instance at the specified memory.
    
    Parameters:
    
    address - the memory address
    
    capacity - the buffer capacity
  - createSafe
```
@Nullable
public static JAWTDrawingSurface.Buffer createSafe(long address,
                                                   int capacity)
```
    Like create, but returns null if address is NULL.
  - nenv
```
public static long nenv(long struct)
```
    Unsafe version of env().
  - ntarget
```
public static long ntarget(long struct)
```
    Unsafe version of target().
  - nLock
```
public static long nLock(long struct)
```
    Unsafe version of Lock().
  - nGetDrawingSurfaceInfo
```
public static long nGetDrawingSurfaceInfo(long struct)
```
    Unsafe version of GetDrawingSurfaceInfo().
  - nFreeDrawingSurfaceInfo
```
public static long nFreeDrawingSurfaceInfo(long struct)
```
    Unsafe version of FreeDrawingSurfaceInfo().
  - nUnlock
```
public static long nUnlock(long struct)
```
    Unsafe version of Unlock().

Class JAWTDrawingSurface

Member documentation

Layout

Nested Class Summary

Nested classes/interfaces inherited from interface org.lwjgl.system.Pointer

Field Summary

Fields inherited from interface org.lwjgl.system.Pointer

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from class org.lwjgl.system.Pointer.Default

Methods inherited from class org.lwjgl.system.Struct

Field Detail

SIZEOF

ALIGNOF

ENV, TARGET, LOCK, GETDRAWINGSURFACEINFO, FREEDRAWINGSURFACEINFO, UNLOCK

Constructor Detail

JAWTDrawingSurface

Method Detail

sizeof

env

target

Lock

GetDrawingSurfaceInfo

FreeDrawingSurfaceInfo

Unlock

create

createSafe

create

createSafe

nenv

ntarget

nLock

nGetDrawingSurfaceInfo

nFreeDrawingSurfaceInfo

nUnlock