CONTROL
- Introduction to CTRL
- CONTROL Classes
- Types of Control Functions
- Control graphics
- CONTROL Functions
  - Funtions A
  - Funtions B
    - base64Decode()
      Decodes base64 encoded data.
    - base64Encode()
      Encodes data in the base64 encoding.
    - baseName()
      The function returns the last part of a file path.
    - beep()
      Issues a beep.
    - bitmapEditor() - obsolete
      This function opens the bitmap editor. To be able to use the function, the PVSSBitmapEditor.dll has to exist in the directory <version_path>/bin (obsolete from version 3.5 up).
    - blobAppendValue()
      Works like blobSetValue(), but the value is appended to the blob.
    - blobGetValue()
      Reads "value" from byte offset "offset" with "len" bytes from blob.
    - bloblen()
      The function returns the length of a blob in bytes.
    - blobRead()
      The function blobRead() reads the content of a file into a blob variable.
    - blobSetValue()
      Writes "value" from byte position "offset" with "len" bytes to the blob.
    - blobWrite()
      The function blobWrite writes the content of a blob variable into a file.
    - blobZero()
      Sets blob length to len bytes and initialize the blob with "0".
    - byteSizeToString()
      Converts a filesize in bytes to a string (for example, with getFileSize()).
  - Funtions C
  - Funtions D
  - Functions E
  - Functions F
  - Functions G
  - Functions H
  - Functions I
  - Functions J
  - Functions K
  - Functions L
  - Functions M
  - Functions N
  - Functions O
  - Functions P
  - Functions Q
  - Functions R
  - Functions S
  - Functions T
  - Functions U
  - Functions V
  - Functions W
  - Functions X
  - Functions Y
  - Functions Z
- CTRL Debugger
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- CtrlExtension, basics
- CTRLPPCheck
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base64Decode()

Decodes base64 encoded data.

Synopsis

int base64Decode(string encoded, string|blob &decoded);

Parameter


Parameter	Description
encoded	The data that should be decoded.
decoded	The decoded data that is returned.

Return Value

Returns 0 on success or -1 if the given data is invalid (not conform to base64 encoding rules)

Description

The function decodes base 64 encoded data and returns it either as string or blob.

If the encoded data contains a 0-byte the data type for the decoded information must not be a string but a blob as a string cannot handle 0-bytes. In this case the return value of the function is -1.

Assignment

Miscellaneous functions

Availability

UI, CTRL