4D v13.4
READ PICTURE FILE
- 4D Language Reference
-
- Pictures
-
- Pictures
- BLOB TO PICTURE
- COMBINE PICTURES
- CONVERT PICTURE
- CREATE THUMBNAIL
- Equal picturesNew
- Get picture file nameNew
- GET PICTURE FROM LIBRARY
- GET PICTURE KEYWORDSNew
- GET PICTURE METADATA
- Is picture file
- PICTURE CODEC LIST
- PICTURE LIBRARY LIST
- PICTURE PROPERTIES
- Picture size
- PICTURE TO BLOB
- PICTURE TO GIF
- PICTURE TYPE LIST
- QT COMPRESS PICTURE
- QT COMPRESS PICTURE FILE
- QT LOAD COMPRESS PICTURE FROM FILE
- READ PICTURE FILE
- REMOVE PICTURE FROM LIBRARY
- SAVE PICTURE TO FILE
- SET PICTURE FILE NAMENew
- SET PICTURE METADATA
- SET PICTURE TO LIBRARY
- TRANSFORM PICTURE
- WRITE PICTURE FILE
READ PICTURE FILE
| READ PICTURE FILE ( fileName ; picture {; *} ) | ||||||||
| Parameter | Type | Description | ||||||
| fileName | String |
|
Name or full pathname of the file to read, or empty string | |||||
| picture | Picture |
|
Field or variable receiving picture | |||||
| * | Operator |
|
If passed = accept any type of file | |||||
The READ PICTURE FILE command opens the picture saved in the fileName disk file and loads it in the picture 4D field or variable.
You can pass in fileName the full pathname of the file to read, or a file name only. If you pass only the file name, it should be located next to the database structure file. Under Windows, the file extension must be indicated.
If an empty string ("") is passed in fileName, the standard Open file dialog box appears and the user selects the file to be read, as well as the available formats.
You can get the list of available formats using the PICTURE CODEC LIST command.
You pass in picture the picture variable or field which will receive the picture read.
Note: The internal picture format is stored within the 4D variable or field. In the case of custom formats using QuickTime, it is necessary to have QuickTime in order to read the picture within 4D.
If you pass the optional * parameter, the command will accept any type of file. This means that you can work with pictures without necessarily having the suitable codecs (see the description of the BLOB TO PICTURE command).
If the command is executed successfully, the system variable Document contains the full pathname to the open file and the system variable OK is set to 1. Otherwise, OK is set to 0.
Product: 4D
Theme: Pictures
Number:
678
Modified: 4D v11 SQL Release 2
BLOB TO PICTURE
PICTURE CODEC LIST
PICTURE TYPE LIST
Pictures
WRITE PICTURE FILE
