ADODB. Stream is a stream object of ADO. It provides access to binary data or text streams to implement stream read, write, and management operations.

ADODB. Stream is a stream object of ADO. It provides access to binary data or text streams to implement stream read, write, and management operations.

There are the following methods:
Cancel Method
The usage is as follows:
Object. Cancel
Description: cancels the call of an asynchronous execute or open method suspended for execution.
Close Method
The usage is as follows:
Object. Close
: Close the object
Copyto Method
The usage is as follows:
Object. copyto (deststream, [charnumber])
Note: copy the data of the image. deststream points to the image to be copied. charnumber is an optional parameter, indicating the number of bytes to be copied. If not, it is all copied.
Flush Method
The usage is as follows:
Object. Flush
Note:
Loadfromfile Method
The usage is as follows:
Object. loadfromfile (filename)
Note: mount the file specified by filename into the object. The filename parameter is the specified user name.
Open Method
The usage is as follows:
Object. Open (source, [mode], [Options], [username], [Password])
Note: Open the object,
Parameter description: sourece object source, not specified
Mode specifies the open mode. Optional parameters are as follows:
Admoderead = 1
Admodereadwrite = 3
Admoderecursive = 4194304
Admodesharedenynone = 16
Admodesharedenyread = 4
Admodesharedenywrite = 8
Admodemo-exclusive = 12
Admodeunknown = 0
Admodewrite = 2
Options:
Adopenstreamasync = 1
Adopenstreamfromrecord = 4
Adopenstreamunspecified =-1
Username: Specifies the user name. Do not specify it.
Password specifies the password of the user name
Read Method
The usage is as follows:
Object. Read (numbytes)
Description: reads the binary content of the specified length.
Parameter description: numbytes specifies the degree to be read. If not specified, all data is read.

Readtext Method
The usage is as follows:
Object. readtext (numchars)
Description: reads the text of a specified length.
Parameter description: numchars specifies the degree to be read. If it is not specified, all data is read.

Savetofile Method
The usage is as follows:
Object. savetofile (filename, [Options])
Description: writes the object content to the file specified by filename.
Parameter description: file specified by filename
The options access option is not specified. The optional parameters are as follows:
Adsavecreatenotexist = 1
Adsavecreateoverwrite = 2

Seteos Method
The usage is as follows:
Object. seteos ()
Note:
Skipline Method
The usage is as follows:
Object. skipline ()
Note:
Write Method
The usage is as follows:
Object. Write (buffer)
Description: loads the specified data into the object.
Parameter description: buffer is the specified content to be written.
Writetext Method
The usage is as follows:
Object. Write (data, [Options])
Description: loads the specified text data into the object.
Parameter description: data is the specified content to be written.
The options write option is not specified. The optional parameters are as follows:
Adwritechar = 0
Adwriteline = 1

 

Has the following attributes:
Charset
Whether the data in the object is null is returned by EOS.

Lineseparator specifies the line feed format. Optional parameters include
Adcr = 13
Adcrlf =-1
Adlf = 10
 
Mode or return mode.
 
Position specifies or returns the current pointer to the data in the image.
 
Size returns the size of the data in the object.
 
Whether the status of the State add-back object is enabled.
 
Data type specified or returned. The optional parameter is:
Adtypebinary = 1
Adtypetext = 2