RasterMemoryFlags Enumeration

Summary

Indicates the type of memory to allocate.

Syntax

Objective-C

C++/CLI

Java

Python

[FlagsAttribute()] 
public enum RasterMemoryFlags

typedef NS_OPTIONS(NSUInteger, LTRasterMemoryFlags)

public final class RasterMemoryFlags 
    extends java.lang.Enum<RasterMemoryFlags>

[FlagsAttribute()] 
public enum class RasterMemoryFlags

class RasterMemoryFlags(Enum): 
   None = 0 
   Conventional = 1 
   User = 2 
   Tiled = 4 
   NoTiled = 8 
   Disk = 128 
   NoDisk = 256 
   Compressed = 512 
   SuperCompressed = 1024 
   WriteableBitmap = 2048

Members

Value	Member	Description
0x00000000	None	No flags.
0x00000001	Conventional	Use conventional memory.
0x00000002	User	Creates an image where the user maintains the data pointer. Some image processing commands, such as RotateCommand and ColorResolutionCommand, need to re-allocate the image data. If you create a bitmap with RasterMemoryFlags.User, and pass it to these command, they will change the bitmap to RasterMemoryFlags.Conventional and re-allocate memory. Your original memory will no longer be used.
0x00000004	Tiled	Creates an image where the data pointers are maintained in tiles, useful for very large images.
0x00000008	NoTiled	Do not allow tiled images.
0x00000080	Disk	Do not use managed memory. Swap to disk only. If the image is allocated as Disk, then the image cannot be accessed by multiple threads at the same time.
0x00000100	NoDisk	Do not swap to disk using LEAD virtual memory. Windows virtual memory is not affected.
0x00000200	Compressed	(Document/Medical only) Allocate an RLE-compressed image. You can use this flag with None or NoDisk. For more information, refer to Speeding Up 1-Bit Documents.
0x00000400	SuperCompressed	(Document/Medical only) Allocate a CMP-compressed image. You can use this flag with None or NoDisk. The compression used for 24-bit and 8-bit images is lossy, which means multiple changes to the image can produce some visual loss.
0x00000800	WriteableBitmap	No longer supported.

Remarks

For more information, refer to Memory Storage Types for Images. Use only RasterMemoryFlags.Conventional or RasterMemoryFlags.Disk when setting defaults.

Requirements

Target Platforms

Reference

Leadtools Namespace

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Help Version 22.0.2023.5.16

Leadtools Assembly

Introduction

Getting Started

Namespaces

Leadtools Namespace

Leadtools.ImageProcessing Namespace

Assemblies