4D v12.4
SEND HTML BLOB
- 4D Language Reference
-
- Web Server
-
- Web Server, Overview
- Web server configuration and connection management
- Connection Security
- On Web Authentication Database Method
- On Web Connection Database Method
- Binding 4D objects with HTML objects
- URLs and Form Actions
- 4D HTML Tags
- Web Server Settings
- Information about the Web Site
- Using SSL Protocol
- XML and WML Support
- Using CGIs
- GET HTTP BODY
- GET HTTP HEADER
- GET WEB FORM VARIABLES
- PROCESS HTML TAGSUpd
- Secured Web connection
- SEND HTML BLOB
- SEND HTML FILEUpd
- SEND HTML TEXT
- SEND HTTP RAW DATA
- SEND HTTP REDIRECT
- SET CGI EXECUTABLE
- SET HOME PAGE
- SET HTML ROOT
- SET HTTP HEADER
- SET WEB DISPLAY LIMITS
- SET WEB TIMEOUT
- START WEB SERVER
- STOP WEB SERVER
- Validate Digest Web Password
- WEB CACHE STATISTICS
- Web Context
SEND HTML BLOB
| SEND HTML BLOB ( blob ; type {; noContext} ) | ||||||||
| Parameter | Type | Description | ||||||
| blob | BLOB |
|
BLOB to send to the browser | |||||
| type | String |
|
Data type of the BLOB | |||||
| noContext | Boolean |
|
True = Switch to non contextual mode False = Keep current mode | |||||
The SEND HTML BLOB command allows you to send blob to the browser.
The type of data contained in the BLOB is indicated by type. This parameter can be one of the following types:
- type = Empty String (""): In this case, you don’t need to supply any more information in the BLOB. The browser will try to interpret the contents of the BLOB.
- type = File extension (example: ".HTM", ".GIF", ".JPEG", etc.): In this case, you specify the MIME type of the data contained in the BLOB by indicating its extension. The BLOB will then be interpreted according to its extension. However, the extension must be a standard one so that the browser can correctly interpret it.
- type = Mime/Type (example: “text/html”, “image/tiff”, etc.): In this case, you directly specify the MIME type of data contained in the BLOB. This solution offers you more freedom. Besides the standard types, you can pass a custom MIME type to send proprietary documents via Intranet. To do so, you only need to configure the browsers so that they recognize the type sent and so that they can open the appropriate application. The value you pass to type is, in this case, “application/x-[TypeName]”. In the client workstations’s browser, you reference this type and associate it to the “Launch the application” action. The SEND HTML BLOB command allows you to therefore send all types of documents, the Intranet clients automatically open the associated application.
Here is a list of the most common MIME types:
| Extension | Mime/Type |
| .htm | text/html |
| .html | text/html |
| .shtml | text/html |
| .shtm | text/html |
| .css | text/css |
| application/pdf | |
| .rtf | application/rtf |
| .ps | application/postscript |
| .eps | application/postscript |
| .hqx | application/mac-binhex40 |
| .js | application/javascript |
| .json | application/json |
| .txt | text/plain |
| .text | text/plain |
| .gif | image/gif |
| .jpg | image/jpeg |
| .jpeg | image/jpeg |
| .jpe | image/jpeg |
| .jfif | image/jpeg |
| .pic | image/pict |
| .pict | image/pict |
| .tif | image/tiff |
| .tiff | image/tiff |
| .mpeg | video/mpeg |
| .mpg | video/mpeg |
| .mov | video/quicktime |
| .moov | video/quicktime |
| .aif | audio/aiff |
| .aiff | audio/aiff |
| .wav | audio/wav |
| .ram | audio/x-pn-realaudio |
| .sit | application/x-stuffit |
| .bin | application/x-stuffit |
| .xml | application/xml |
| .z | application/x-zip |
| .zip | application/x-zip |
| .gz | application/x-gzip |
| .tar | application/x-tar |
Note: For more information, go to http://www.iana.org and look for “Protocol Numbers and Assignment Services” topics.
The noContext parameter is obsolete beginning with version 12 of 4D. It is only kept for compatibility.
The references to 4D variables and 4DSCRIPT type tags in the page are always parsed.
Refer to the example of the routine PICTURE TO GIF.
Product: 4D
Theme: Web Server
Number:
654
Created: 4D v6.5
