微软emf文件格式详解资源-CSDN文库

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文件格式 EMF (Enhanced MetaFile) ——是在印刷工业中应用与Windows操作系统的文件格式。实际上EMF是原始WMF（Windows metafile）格式的32位版本。EMF格式的产生是为了解决WMF在印刷行业中的不足。EMF是设备独立性的一种格式，也就是说EMF可以始终保持着图形的精度，而无论用打印机打印出何种分辨率（dot/inch）的硬拷贝 ### 微软EMF文件格式详解 #### 一、引言 EMF（Enhanced MetaFile）是一种在Windows操作系统中广泛使用的高级元文件格式。它作为WMF（Windows Metafile）格式的32位增强版，旨在解决WMF在印刷行业中的一些限制。EMF格式的一个显著特点是其设备独立性，这意味着不论输出设备的分辨率如何变化，EMF文件都能够保持图形的精确度不变。 #### 二、EMF格式背景与特点 EMF格式的出现主要是为了满足日益增长的高质量图形处理需求。传统的WMF格式虽然也能够存储矢量图形信息，但在处理高分辨率输出时存在一定的局限性，尤其是在不同分辨率下无法保证图像质量的一致性。EMF格式克服了这些缺点，成为了一种更为优秀的图形文件格式。 - **设备独立性**：EMF格式能够适应各种不同的输出设备，如显示器、打印机等，并且能够在任何分辨率下保持图形的一致性和清晰度。 - **32位兼容性**：作为WMF的32位版本，EMF能够更好地支持现代操作系统和软件应用程序。 - **可扩展性**：EMF格式的设计考虑到了未来可能的需求，具有良好的扩展能力，能够容纳更多的图形信息和特性。 - **高效性**：EMF文件通过优化的数据结构来减少文件大小，提高传输和处理效率。 #### 三、EMF格式的技术细节 EMF文件本质上是由一系列命令组成的指令集，这些命令用于描述构成图像的各种元素，如线条、形状、颜色填充等。每个命令都包含了执行特定图形操作所需的参数。EMF文件格式的内部结构非常复杂，包括多个层次的数据结构，如记录头、记录体、对象表等。 1. **记录头**：定义了EMF文件的基本属性，如文件类型、版本号等。 2. **记录体**：包含了实际的绘图指令，这些指令按照顺序执行，以重现图像。 3. **对象表**：记录了所有使用的绘图对象，如笔、刷子等，以及它们的属性设置。 #### 四、EMF格式的应用场景由于EMF格式的优良特性，它在多个领域得到了广泛应用： - **桌面出版系统**：EMF格式非常适合用于桌面出版系统中的图形处理，因为它可以确保在不同分辨率下的输出质量一致。 - **Web开发**：在Web开发中，EMF格式可以用来创建高质量的矢量图形资源，这些资源可以在各种设备上保持清晰。 - **软件开发**：许多软件开发工具都支持EMF格式，使得开发者能够轻松地将高质量的图形嵌入到他们的应用程序中。 - **CAD系统**：计算机辅助设计(CAD)系统也经常使用EMF格式来保存复杂的图形设计，因为它的高保真度有助于保持设计的准确性。 #### 五、EMF格式的知识产权声明根据微软发布的[MS-EMF]文档（EnhancedMetafile Format），该文档涵盖了EMF格式的技术规范、版权信息和其他重要细节。文档指出，虽然该文档受微软的版权保护，但允许用户出于实施EMF技术的目的复制和分发文档中的部分内容。此外，还提到了有关专利许可的信息，以及对商标和虚构名称使用的说明。 #### 六、结论 EMF格式作为一种先进的矢量图形文件格式，在多个领域都有着广泛的应用。它不仅解决了WMF格式在处理高分辨率输出时的问题，而且还提供了更好的兼容性和扩展性。随着技术的发展，EMF格式将继续发挥重要作用，并在未来的图形处理领域中占据一席之地。

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[MS-EMF] — v20101112

Enhanced Metafile Format

Release: Friday, November 12, 2010

[MS-EMF]:

Enhanced Metafile Format

Intellectual Property Rights Notice for Open Specifications Documentation

 Technical Documentation. Microsoft publishes Open Specifications documentation for

protocols, file formats, languages, standards as well as overviews of the interaction among each

of these technologies.

 Copyrights. This documentation is covered by Microsoft copyrights. Regardless of any other

terms that are contained in the terms of use for the Microsoft website that hosts this

documentation, you may make copies of it in order to develop implementations of the

technologies described in the Open Specifications and may distribute portions of it in your

implementations using these technologies or your documentation as necessary to properly

document the implementation. You may also distribute in your implementation, with or without

modification, any schema, IDL’s, or code samples that are included in the documentation. This

permission also applies to any documents that are referenced in the Open Specifications.

 No Trade Secrets. Microsoft does not claim any trade secret rights in this documentation.

 Patents. Microsoft has patents that may cover your implementations of the technologies

described in the Open Specifications. Neither this notice nor Microsoft's delivery of the

documentation grants any licenses under those or any other Microsoft patents. However, a given

Open Specification may be covered by Microsoft's Open Specification Promise (available here:

http://www.microsoft.com/interop/osp) or the Community Promise (available here:

http://www.microsoft.com/interop/cp/default.mspx). If you would prefer a written license, or if

the technologies described in the Open Specifications are not covered by the Open Specifications

Promise or Community Promise, as applicable, patent licenses are available by contacting

iplg@microsoft.com.

 Trademarks. The names of companies and products contained in this documentation may be

covered by trademarks or similar intellectual property rights. This notice does not grant any

licenses under those rights.

 Fictitious Names. The example companies, organizations, products, domain names, e-mail

addresses, logos, people, places, and events depicted in this documentation are fictitious. No

association with any real company, organization, product, domain name, email address, logo,

person, place, or event is intended or should be inferred.

Reservation of Rights. All other rights are reserved, and this notice does not grant any rights

other than specifically described above, whether by implication, estoppel, or otherwise.

Tools. The Open Specifications do not require the use of Microsoft programming tools or

programming environments in order for you to develop an implementation. If you have access to

Microsoft programming tools and environments you are free to take advantage of them. Certain

Open Specifications are intended for use in conjunction with publicly available standard

specifications and network programming art, and assumes that the reader either is familiar with the

aforementioned material or has immediate access to it.

4 / 306

[MS-EMF] — v20101112

Enhanced Metafile Format

Release: Friday, November 12, 2010

Contents

1 Introduction ............................................................................................................. 9

1.1 Glossary ............................................................................................................... 9

1.2 References .......................................................................................................... 16

1.2.1 Normative References ..................................................................................... 16

1.2.2 Informative References ................................................................................... 16

1.3 Overview ............................................................................................................ 16

1.3.1 Metafile Structure ........................................................................................... 16

1.3.2 Graphics Objects ............................................................................................ 18

1.3.3 Byte Ordering ................................................................................................ 19

1.4 Relationship to Protocols and Other Structures ........................................................ 19

1.5 Applicability Statement ......................................................................................... 19

1.6 Versioning and Localization ................................................................................... 19

1.7 Vendor-Extensible Fields ....................................................................................... 20

2 Structures .............................................................................................................. 21

2.1 EMF Enumerations ............................................................................................... 21

2.1.1 RecordType Enumeration ................................................................................ 21

2.1.2 ArcDirection Enumeration ................................................................................ 29

2.1.3 ArmStyle Enumeration .................................................................................... 30

2.1.4 BackgroundMode Enumeration ......................................................................... 31

2.1.5 ColorAdjustment Enumeration ......................................................................... 31

2.1.6 ColorMatchToTarget Enumeration ..................................................................... 31

2.1.7 ColorSpace Enumeration ................................................................................. 32

2.1.8 Contrast Enumeration ..................................................................................... 32

2.1.9 DIBColors Enumeration ................................................................................... 33

2.1.10 EmrComment Enumeration ............................................................................ 33

2.1.11 ExtTextOutOptions Enumeration ..................................................................... 34

2.1.12 FamilyType Enumeration ............................................................................... 35

2.1.13 FloodFill Enumeration .................................................................................... 35

2.1.14 FormatSignature Enumeration ........................................................................ 35

2.1.15 GradientFill Enumeration ............................................................................... 36

2.1.16 GraphicsMode Enumeration............................................................................ 36

2.1.17 HatchStyle Enumeration ................................................................................ 37

2.1.18 ICMMode Enumeration .................................................................................. 38

2.1.19 Illuminant Enumeration ................................................................................. 38

2.1.20 Letterform Enumeration ................................................................................ 39

2.1.21 MapMode Enumeration .................................................................................. 40

2.1.22 MetafileVersion Enumeration .......................................................................... 41

2.1.23 MidLine Enumeration..................................................................................... 41

2.1.24 ModifyWorldTransformMode Enumeration ........................................................ 42

2.1.25 PenStyle Enumeration ................................................................................... 42

2.1.26 Point Enumeration ........................................................................................ 44

2.1.27 PolygonFillMode Enumeration ......................................................................... 44

2.1.28 Proportion Enumeration ................................................................................. 44

2.1.29 RegionMode Enumeration .............................................................................. 45

2.1.30 SerifType Enumeration .................................................................................. 46

2.1.31 StockObject Enumeration .............................................................................. 47

2.1.32 StretchMode Enumeration.............................................................................. 49

2.1.33 StrokeVariation Enumeration ......................................................................... 50

2.1.34 Weight Enumeration ..................................................................................... 50

5 / 306

[MS-EMF] — v20101112

Enhanced Metafile Format

Release: Friday, November 12, 2010

2.1.35 XHeight Enumeration .................................................................................... 51

2.2 EMF Objects ........................................................................................................ 52

2.2.1 BitFIX28_4 Object .......................................................................................... 52

2.2.2 ColorAdjustment Object .................................................................................. 52

2.2.3 DesignVector Object ....................................................................................... 54

2.2.4 EmrFormat Object .......................................................................................... 54

2.2.5 EmrText Object .............................................................................................. 55

2.2.6 EpsData Object .............................................................................................. 57

2.2.7 GradientRectangle Object ................................................................................ 58

2.2.8 GradientTriangle Object .................................................................................. 58

2.2.9 Header Object ................................................................................................ 59

2.2.10 HeaderExtension1 Object .............................................................................. 61

2.2.11 HeaderExtension2 Object .............................................................................. 61

2.2.12 LogBrushEx Object ....................................................................................... 62

2.2.13 LogFont Object ............................................................................................. 62

2.2.14 LogFontEx Object ......................................................................................... 65

2.2.15 LogFontExDv Object ..................................................................................... 67

2.2.16 LogFontPanose Object ................................................................................... 68

2.2.17 LogPalette Object ......................................................................................... 70

2.2.18 LogPaletteEntry Object .................................................................................. 70

2.2.19 LogPen Object .............................................................................................. 71

2.2.20 LogPenEx Object .......................................................................................... 71

2.2.21 Panose Object .............................................................................................. 73

2.2.22 PixelFormatDescriptor Object ......................................................................... 74

2.2.23 Point28_4 Object .......................................................................................... 77

2.2.24 RegionData Object ........................................................................................ 77

2.2.25 RegionDataHeader Object .............................................................................. 78

2.2.26 TriVertex Object ........................................................................................... 79

2.2.27 UniversalFontId Object .................................................................................. 79

2.2.28 XForm Object ............................................................................................... 80

2.3 EMF Records ....................................................................................................... 81

2.3.1 Bitmap Record Types ...................................................................................... 82

2.3.1.1 EMR_ALPHABLEND Record ......................................................................... 84

2.3.1.2 EMR_BITBLT Record .................................................................................. 89

2.3.1.3 EMR_MASKBLT Record .............................................................................. 92

2.3.1.4 EMR_PLGBLT Record ................................................................................. 97

2.3.1.5 EMR_SETDIBITSTODEVICE Record ............................................................. 101

2.3.1.6 EMR_STRETCHBLT Record ........................................................................ 103

2.3.1.7 EMR_STRETCHDIBITS Record ................................................................... 107

2.3.1.8 EMR_TRANSPARENTBLT Record ................................................................. 109

2.3.2 Clipping Record Types .................................................................................... 112

2.3.2.1 EMR_EXCLUDECLIPRECT Record ................................................................ 114

2.3.2.2 EMR_EXTSELECTCLIPRGN Record .............................................................. 115

2.3.2.3 EMR_INTERSECTCLIPRECT Record ............................................................. 115

2.3.2.4 EMR_OFFSETCLIPRGN Record ................................................................... 116

2.3.2.5 EMR_SELECTCLIPPATH Record .................................................................. 117

2.3.3 Comment Record Types ................................................................................. 117

2.3.3.1 EMR_COMMENT Record ............................................................................ 119

2.3.3.2 EMR_COMMENT_EMFPLUS Record .............................................................. 119

2.3.3.3 EMR_COMMENT_EMFSPOOL Record ........................................................... 120

2.3.3.4 EMR_COMMENT_PUBLIC Record Types ....................................................... 120

2.3.3.4.1 EMR_COMMENT_BEGINGROUP Record .................................................. 122

2.3.3.4.2 EMR_COMMENT_ENDGROUP Record ..................................................... 123

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ydtime

2015-12-23

标题党，还以为是中文的
thanmail

2012-08-09

英文版的，看起来费劲，不过资料倒是很全。
秋风之刀

2012-04-26

英文版的，还以为是中文的
GoldenDragon

2012-08-07

E文的，读起来有些困难
lovednisgood

2013-08-16

我的英文水平不高,读起来很吃力.但是看了以下内容.貌似很全.

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