This function returns the Mime type of data contained in an IMAGE variable. NB: it is not a function completely validating the content of the variable.
In Windows, this function only detects a limited number of Mime types supported as standard.
Context
Windows client
Windows server
Java server
- Java client
Adelia Web Client
Adelia Cloud client
Event Adelia client
Parameters
IMAGE |
Image |
Image variable containing binary data. |
| ALPHA(n) | MimeType |
Variable which must contain the Mime type. |
| NUM_BIN_4 | MimeTypeLg | Length of the MimeType variable. If the Mime type length is over MimeTypeLg, the function fails and returns a -2 error code and the required length in MimeTypeLg. |
NUM_BIN_2 |
ReturnCode |
Return code for the operation: 0 Operation completed successfully. -1 An error occurred. -2 The MimeType variable is not long enough. |
Example
IMAGE Image
ALPHA(250) MimeType
NUM_BIN_4 MimeTypeLg
NUM_BIN_2 ReturnCode
...
CALL_DLL 'VATOOLBX.DLL' 'VaToolBxFileToImage' 'c:\temp\document.docx' Image ReturnCode
LgTypeMime = 250
CALL_DLL 'VATOOLBX.DLL' 'VaToolBxGuessMimeTypeData' Image MimeType MimeTypeLg ReturnCode
* => The value of MimeType is "application/vnd.openxmlformats-officedocument.wordprocessingml.document"
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List of VaToolBx DLL functions by topic