2.2.20. ADO Stream object

Stream object (ADO version 2.5) ¶

ADO Stream object is used to read and write and to process binary data or text streams.

Stream objects can be obtained in three ways:

By pointing to the URL of an object (usually a file) containing binary or textual data. This object can be a simple document, a Record object representing a structured document, or a folder.
By setting the Stream object is instantiated. These. Stream objectcan be used to store data for an application. Associated with the URL Stream or Record default of Stream different, instantiated Stream by default, it is not associated with the base source.
By opening the connection with Record the default associated with the object Stream object. open Record can get the same informationas the Record gets or sets the default stream associated with the Simply open the stream to delete a round trip.

Grammar ¶

objectname.property
objectname.method

Attribute ¶

Attribute

Description

CharSet

Specifies the character set used to store the Stream.

EOS

Returns whether the current position is at the end of the stream.

LineSeparator

Sets or returns the line break used in the text Stream object.

Mode

Sets or returns the available permissions for modifying data.

Position

Sets or returns the current position, in bytes, starting from the Stream object.

Size

Returns the size of an open Stream object.

State

Returns a value that describes whether Stream is on or off.

Type

Sets or returns the type of data in the Stream object.

Method ¶

Method	Description
`Cancel`	Cancel the right `Stream` object’s `Open` the execution of the call.
`Close`	Close `Stream` object.
`CopyTo`	Converts a specified number of characters / bits from a `Stream` object to another `Stream` object.
`Flush`	Send the contents of the `Stream` buffer to the associated lower level object.
`LoadFromFile`	Load the contents of the file `Stream` object.
`Open`	Open `Stream` object.
`Read`	From a binary `Stream` object reads the entire stream or the specified number of bytes.
`ReadText`	From a text `Stream` all streams, rows, or the specified number of bytes are read in the.
`SaveToFile`	Put one `Stream` saves the binary contents of the object to a file.
`SetEOS`	Sets the current position to the end of the stream (EOS)
`SkipLine`	Skip a line when reading a text stream.
`Write`	Write binary data to a binary `Stream` object.
`WriteText`	Write character data to a text `Stream` object. 文章链接： 2.2.20. ADO Stream object Principles and Applications of WebGIS 37 Geographical Information Systems in the World Wide Web Era 4 Basic technology of WebGIS 4 Geographic Web Services 5 aggregation of geographical information 4 mobile GIS 5 Geographic information portal 3 New generation national spatial data infrastructure and GIS 4 Application of WebGIS in E-Commerce 3 Application of WebGIS in E-government 3 Hotspots and frontiers of WebGIS 2 IT Tools 337 1. Memcached 19 更多 2. ADO tutorial 18 2.2.6. ADO query 2.2.13. ADO Connection object 2.2.22. You have learned ADO, what’s the next step? 2.2.9. ADO updates the record 2.2.16. ADO Parameter object 2.2.15. ADO Field object 2.2.14. ADO Error object 2.2.10. ADO delete record 2.2.3. ADO database connection 2.2.1. ADO tutorial 更多 3. Android 16 更多 4. Appml 12 更多 5. Data-structures 30 更多 6. Design-pattern 34 更多 7. Django 19 更多 8. Foundation 39 更多 9. Ios 43 更多 10. Markdown 9 11. Maven 19 更多 12. RDF tutorial 11 更多 13. Regex 6 14. Regexp 7 15. XML Schema tutorial 55 更多 Web Frameworks 49 1. Angularjs2 8 2. Vue3 18 更多 3. React 23 更多 Principles, Technologies, and Methods of Geographic Information Systems 102 In recent years, Geographic Information Systems (GIS) have undergone rapid development in both theoretical and practical dimensions. GIS has been widely applied for modeling and decision-making support across various fields such as urban management, regional planning, and environmental remediation, establishing geographic information as a vital component of the information era. The introduction of the “Digital Earth” concept has further accelerated the advancement of GIS, which serves as its technical foundation. Concurrently, scholars have been dedicated to theoretical research in areas like spatial cognition, spatial data uncertainty, and the formalization of spatial relationships. This reflects the dual nature of GIS as both an applied technology and an academic discipline, with the two aspects forming a mutually reinforcing cycle of progress. Introduction to Geographic Information Systems 6 From the Real World to the Bit World 3 Spatial Data Model 7 Spatial Reference Systems and Map Projections 5 Data in GIS 4 Spatial data acquisition 2 Spatial Data Management 6 Spatial analysis 8 Digital Terrain Model (DTM) and Terrain Analysis 5 Spatial modeling and spatial decision support 6 Spatial data representation and map making 6 3S Integration Technology 5 Network Geographic Information System 4 Examples of Geographic Information System Application 8 Organization and Management of Geographic Information System Application Projects 10 Geographic Information system Software Engineering Technology 7 Geographic Information System Standards 3 Geographic Information System and Society 3 Earth Information Science and Digital Earth 4 WEB Technology 258 1. SVG tutorial 20 更多 2. Servlet 21 更多 3. SOAP tutorial 9 4. W3C tutorial 16 更多 web 15 更多 5. Web Services tutorial 6 6. WSDL tutorial 7 7. Bootstrap5 35 更多 8. Css3 25 更多 9. Echarts 12 更多 10. Font-awesome 16 更多 11. HTML tutorial-(HTML5 Standard) 55 更多 12. Http 7 13. Sass 14 更多 Systems 232 1. Sqlite 50 更多 2. Docker 60 更多 3. Mongodb 44 更多 4. MySQL tutorial 36 更多 5. Postgresql 42 更多 Programming Language 353 1. C# tutorial 62 更多 2. Go 43 更多 3. Kotlin 18 更多 4. Lua 31 更多 5. Perl 47 更多 6. Ruby 44 更多 7. Rust 22 更多 8. Scala 42 更多 9. Swift 44 更多 Powered by Django & PostgreSQL (with PostGIS)