java.lang.Object
- org.lwjgl.system.Pointer.Default
- - org.lwjgl.system.Struct
  - - org.lwjgl.opengl.GPU_DEVICE

All Implemented Interfaces:

java.lang.AutoCloseable, org.lwjgl.system.NativeResource, org.lwjgl.system.Pointer
```
public class GPU_DEVICE
extends org.lwjgl.system.Struct
implements org.lwjgl.system.NativeResource
```
Receives information about the display device specified by the deviceIndex parameter of the EnumGpuDevicesNV function.
Member documentation
- cb – the size of the GPU_DEVICE structure. Before calling EnumGpuDevicesNV, set cb to the size, in bytes, of GPU_DEVICE.
- DeviceName[32] – a string identifying the display device name. This will be the same string as stored in the DeviceName field of the DISPLAY_DEVICE structure, which is filled in by EnumDisplayDevices.
- DeviceString[128] – a string describing the GPU for this display device. It is the same string as stored in the DeviceString field in the DISPLAY_DEVICE structure that is filled in by EnumDisplayDevices when it describes a display adapter (and not a monitor).
- Flags – indicates the state of the display device
- rcVirtualScreen – specifies the display device rectangle, in virtual screen coordinates. The value of rcVirtualScreen is undefined if the device is not part of the desktop, i.e. DISPLAY_DEVICE_ATTACHED_TO_DESKTOP is not set in the Flags field.
Layout
```
 struct GPU_DEVICE {
     DWORD cb;
     CHAR DeviceName[32];
     CHAR DeviceString[128];
     DWORD Flags;
     RECT rcVirtualScreen;
 }
```

Nested Class Summary

Nested Classes
Modifier and Type Class Description

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

Field Summary

Fields
Modifier and Type	Field	Description
`static int`	`ALIGNOF`	The struct alignment in bytes.
`static int`	`CB DEVICENAME DEVICESTRING FLAGS RCVIRTUALSCREEN`	The struct member offsets.
`static int`	`SIZEOF`	The struct size in bytes.

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

Constructor Summary

Constructors
Constructor Description

GPU_DEVICE(java.nio.ByteBuffer container)
Creates a GPU_DEVICE 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 GPU_DEVICE`	`calloc()`	Returns a new `GPU_DEVICE` instance allocated with `memCalloc`.
`static GPU_DEVICE.Buffer`	`calloc(int capacity)`	Returns a new `GPU_DEVICE.Buffer` instance allocated with `memCalloc`.
`static GPU_DEVICE`	`callocStack()`	Returns a new `GPU_DEVICE` instance allocated on the thread-local `MemoryStack` and initializes all its bits to zero.
`static GPU_DEVICE.Buffer`	`callocStack(int capacity)`	Returns a new `GPU_DEVICE.Buffer` instance allocated on the thread-local `MemoryStack` and initializes all its bits to zero.
`static GPU_DEVICE.Buffer`	`callocStack(int capacity, org.lwjgl.system.MemoryStack stack)`	Returns a new `GPU_DEVICE.Buffer` instance allocated on the specified `MemoryStack` and initializes all its bits to zero.
`static GPU_DEVICE`	`callocStack(org.lwjgl.system.MemoryStack stack)`	Returns a new `GPU_DEVICE` instance allocated on the specified `MemoryStack` and initializes all its bits to zero.
`int`	`cb()`	Returns the value of the `cb` field.
`static GPU_DEVICE`	`create()`	Returns a new `GPU_DEVICE` instance allocated with `BufferUtils`.
`static GPU_DEVICE.Buffer`	`create(int capacity)`	Returns a new `GPU_DEVICE.Buffer` instance allocated with `BufferUtils`.
`static GPU_DEVICE`	`create(long address)`	Returns a new `GPU_DEVICE` instance for the specified memory address.
`static GPU_DEVICE.Buffer`	`create(long address, int capacity)`	Create a `GPU_DEVICE.Buffer` instance at the specified memory.
`static GPU_DEVICE`	`createSafe(long address)`	Like `create`, but returns `null` if `address` is `NULL`.
`static GPU_DEVICE.Buffer`	`createSafe(long address, int capacity)`	Like `create`, but returns `null` if `address` is `NULL`.
`java.nio.ByteBuffer`	`DeviceName()`	Returns a `ByteBuffer` view of the `DeviceName` field.
`java.lang.String`	`DeviceNameString()`	Decodes the null-terminated string stored in the `DeviceName` field.
`java.nio.ByteBuffer`	`DeviceString()`	Returns a `ByteBuffer` view of the `DeviceString` field.
`java.lang.String`	`DeviceStringString()`	Decodes the null-terminated string stored in the `DeviceString` field.
`int`	`Flags()`	Returns the value of the `Flags` field.
`static GPU_DEVICE`	`malloc()`	Returns a new `GPU_DEVICE` instance allocated with `memAlloc`.
`static GPU_DEVICE.Buffer`	`malloc(int capacity)`	Returns a new `GPU_DEVICE.Buffer` instance allocated with `memAlloc`.
`static GPU_DEVICE`	`mallocStack()`	Returns a new `GPU_DEVICE` instance allocated on the thread-local `MemoryStack`.
`static GPU_DEVICE.Buffer`	`mallocStack(int capacity)`	Returns a new `GPU_DEVICE.Buffer` instance allocated on the thread-local `MemoryStack`.
`static GPU_DEVICE.Buffer`	`mallocStack(int capacity, org.lwjgl.system.MemoryStack stack)`	Returns a new `GPU_DEVICE.Buffer` instance allocated on the specified `MemoryStack`.
`static GPU_DEVICE`	`mallocStack(org.lwjgl.system.MemoryStack stack)`	Returns a new `GPU_DEVICE` instance allocated on the specified `MemoryStack`.
`static int`	`ncb(long struct)`	Unsafe version of `cb()`.
`static java.nio.ByteBuffer`	`nDeviceName(long struct)`	Unsafe version of `DeviceName()`.
`static java.lang.String`	`nDeviceNameString(long struct)`	Unsafe version of `DeviceNameString()`.
`static java.nio.ByteBuffer`	`nDeviceString(long struct)`	Unsafe version of `DeviceString()`.
`static java.lang.String`	`nDeviceStringString(long struct)`	Unsafe version of `DeviceStringString()`.
`static int`	`nFlags(long struct)`	Unsafe version of `Flags()`.
`static org.lwjgl.system.windows.RECT`	`nrcVirtualScreen(long struct)`	Unsafe version of `rcVirtualScreen()`.
`org.lwjgl.system.windows.RECT`	`rcVirtualScreen()`	Returns a `RECT` view of the `rcVirtualScreen` field.
`int`	`sizeof()`

Methods inherited from interface org.lwjgl.system.NativeResource
close, free

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.
  - CB, DEVICENAME, DEVICESTRING, FLAGS, RCVIRTUALSCREEN
    
    The struct member offsets.
- Constructor Detail
  - GPU_DEVICE
```
public GPU_DEVICE(java.nio.ByteBuffer container)
```
    Creates a GPU_DEVICE 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()
```
    Specified by:
    
    sizeof in class org.lwjgl.system.Struct
  - cb
```
public int cb()
```
    Returns the value of the cb field.
  - DeviceName
```
public java.nio.ByteBuffer DeviceName()
```
    Returns a ByteBuffer view of the DeviceName field.
  - DeviceNameString
```
public java.lang.String DeviceNameString()
```
    Decodes the null-terminated string stored in the DeviceName field.
  - DeviceString
```
public java.nio.ByteBuffer DeviceString()
```
    Returns a ByteBuffer view of the DeviceString field.
  - DeviceStringString
```
public java.lang.String DeviceStringString()
```
    Decodes the null-terminated string stored in the DeviceString field.
  - Flags
```
public int Flags()
```
    Returns the value of the Flags field.
  - rcVirtualScreen
```
public org.lwjgl.system.windows.RECT rcVirtualScreen()
```
    Returns a RECT view of the rcVirtualScreen field.
  - malloc
```
public static GPU_DEVICE malloc()
```
    Returns a new GPU_DEVICE instance allocated with memAlloc. The instance must be explicitly freed.
  - calloc
```
public static GPU_DEVICE calloc()
```
    Returns a new GPU_DEVICE instance allocated with memCalloc. The instance must be explicitly freed.
  - create
```
public static GPU_DEVICE create()
```
    Returns a new GPU_DEVICE instance allocated with BufferUtils.
  - create
```
public static GPU_DEVICE create(long address)
```
    Returns a new GPU_DEVICE instance for the specified memory address.
  - createSafe
```
@Nullable
public static GPU_DEVICE createSafe(long address)
```
    Like create, but returns null if address is NULL.
  - malloc
```
public static GPU_DEVICE.Buffer malloc(int capacity)
```
    Returns a new GPU_DEVICE.Buffer instance allocated with memAlloc. The instance must be explicitly freed.
    
    Parameters:
    
    capacity - the buffer capacity
  - calloc
```
public static GPU_DEVICE.Buffer calloc(int capacity)
```
    Returns a new GPU_DEVICE.Buffer instance allocated with memCalloc. The instance must be explicitly freed.
    
    Parameters:
    
    capacity - the buffer capacity
  - create
```
public static GPU_DEVICE.Buffer create(int capacity)
```
    Returns a new GPU_DEVICE.Buffer instance allocated with BufferUtils.
    
    Parameters:
    
    capacity - the buffer capacity
  - create
```
public static GPU_DEVICE.Buffer create(long address,
                                       int capacity)
```
    Create a GPU_DEVICE.Buffer instance at the specified memory.
    
    Parameters:
    
    address - the memory address
    
    capacity - the buffer capacity
  - createSafe
```
@Nullable
public static GPU_DEVICE.Buffer createSafe(long address,
                                           int capacity)
```
    Like create, but returns null if address is NULL.
  - mallocStack
```
public static GPU_DEVICE mallocStack()
```
    Returns a new GPU_DEVICE instance allocated on the thread-local MemoryStack.
  - callocStack
```
public static GPU_DEVICE callocStack()
```
    Returns a new GPU_DEVICE instance allocated on the thread-local MemoryStack and initializes all its bits to zero.
  - mallocStack
```
public static GPU_DEVICE mallocStack(org.lwjgl.system.MemoryStack stack)
```
    Returns a new GPU_DEVICE instance allocated on the specified MemoryStack.
    
    Parameters:
    
    stack - the stack from which to allocate
  - callocStack
```
public static GPU_DEVICE callocStack(org.lwjgl.system.MemoryStack stack)
```
    Returns a new GPU_DEVICE instance allocated on the specified MemoryStack and initializes all its bits to zero.
    
    Parameters:
    
    stack - the stack from which to allocate
  - mallocStack
```
public static GPU_DEVICE.Buffer mallocStack(int capacity)
```
    Returns a new GPU_DEVICE.Buffer instance allocated on the thread-local MemoryStack.
    
    Parameters:
    
    capacity - the buffer capacity
  - callocStack
```
public static GPU_DEVICE.Buffer callocStack(int capacity)
```
    Returns a new GPU_DEVICE.Buffer instance allocated on the thread-local MemoryStack and initializes all its bits to zero.
    
    Parameters:
    
    capacity - the buffer capacity
  - mallocStack
```
public static GPU_DEVICE.Buffer mallocStack(int capacity,
                                            org.lwjgl.system.MemoryStack stack)
```
    Returns a new GPU_DEVICE.Buffer instance allocated on the specified MemoryStack.
    
    Parameters:
    
    stack - the stack from which to allocate
    
    capacity - the buffer capacity
  - callocStack
```
public static GPU_DEVICE.Buffer callocStack(int capacity,
                                            org.lwjgl.system.MemoryStack stack)
```
    Returns a new GPU_DEVICE.Buffer instance allocated on the specified MemoryStack and initializes all its bits to zero.
    
    Parameters:
    
    stack - the stack from which to allocate
    
    capacity - the buffer capacity
  - ncb
```
public static int ncb(long struct)
```
    Unsafe version of cb().
  - nDeviceName
```
public static java.nio.ByteBuffer nDeviceName(long struct)
```
    Unsafe version of DeviceName().
  - nDeviceNameString
```
public static java.lang.String nDeviceNameString(long struct)
```
    Unsafe version of DeviceNameString().
  - nDeviceString
```
public static java.nio.ByteBuffer nDeviceString(long struct)
```
    Unsafe version of DeviceString().
  - nDeviceStringString
```
public static java.lang.String nDeviceStringString(long struct)
```
    Unsafe version of DeviceStringString().
  - nFlags
```
public static int nFlags(long struct)
```
    Unsafe version of Flags().
  - nrcVirtualScreen
```
public static org.lwjgl.system.windows.RECT nrcVirtualScreen(long struct)
```
    Unsafe version of rcVirtualScreen().

Class GPU_DEVICE

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 interface org.lwjgl.system.NativeResource

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

CB, DEVICENAME, DEVICESTRING, FLAGS, RCVIRTUALSCREEN

Constructor Detail

GPU_DEVICE

Method Detail

sizeof

cb

DeviceName

DeviceNameString

DeviceString

DeviceStringString

Flags

rcVirtualScreen

malloc

calloc

create

create

createSafe

malloc

calloc

create

create

createSafe

mallocStack

callocStack

mallocStack

callocStack

mallocStack

callocStack

mallocStack

callocStack

ncb

nDeviceName

nDeviceNameString

nDeviceString

nDeviceStringString

nFlags

nrcVirtualScreen