IndexBuffer.Lock Method (Int32, Type, LockFlags, Int32)

Article
10/15/2009

[This documentation is for preview only, and is subject to change in later releases. Blank topics are included as placeholders.]

Locks a range of index data and obtains a pointer to the index buffer memory.

Namespace: Microsoft.WindowsMobile.DirectX.Direct3D
Assembly: Microsoft.WindowsMobile.DirectX (in Microsoft.WindowsMobile.DirectX.dll)

Syntax

'Declaration
Public Function Lock ( _
    offsetToLock As Integer, _
    typeLock As Type, _
    flags As LockFlags, _
    length As Integer _
) As Array
'Usage
Dim instance As IndexBuffer
Dim offsetToLock As Integer
Dim typeLock As Type
Dim flags As LockFlags
Dim length As Integer
Dim returnValue As Array

returnValue = instance.Lock(offsetToLock, _
    typeLock, flags, length)

public Array Lock(
    int offsetToLock,
    Type typeLock,
    LockFlags flags,
    int length
)

public:
Array^ Lock(
    int offsetToLock, 
    Type^ typeLock, 
    LockFlags flags, 
    int length
)

member Lock : 
        offsetToLock:int * 
        typeLock:Type * 
        flags:LockFlags * 
        length:int -> Array

Parameters

offsetToLock
Type: System.Int32
Offset into the index data to lock, in bytes.

typeLock
Type: System.Type
A Type that indicates the type of array data to return. This can be a value type or any type that contains only value types.

flags
Type: Microsoft.WindowsMobile.DirectX.Direct3D.LockFlags
Zero or more LockFlags that describe the type of lock to perform. For this method, the valid flags are:
- Discard field
- NoDirtyUpdate field
- NoOverwrite field
- ReadOnly field

length
Type: System.Int32
The size of the array to create.

Return Value

Type: System.Array
An Array that represents the locked index buffer.

Exceptions

Exception	Condition
InvalidCallException	The method call is invalid. For example, a method's parameter might contain an invalid value.

Remarks

Note that the .NET Compact Framework does not support multiple lock calls.

The Discard and NoOverwrite fields for a LockFlags are valid only with buffers created with the Dynamic member of the Usage enumeration.

.NET Framework Security

Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.

Platforms

Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Version Information

.NET Compact Framework

Supported in: 3.5, 2.0

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