Expand the contents of the specified string or byte array.
object.ExpandBuffer( InputBuffer, OutputBuffer )
- A string or byte array that contains the data to be expanded.
- A string or byte array that is passed by reference and will
contain the expanded data when the method returns.
This method returns the number of bytes of expanded data that was copied
into the output buffer. If the input buffer is a zero-length string or
an empty array, the method will return zero. If an error occurs, the
method will return -1. Check the value of the LastError
property to determine the specific error that has occurred.
The ExpandBuffer method expands data that compressed with a
previous call to the CompressBuffer method. If the input buffer
is a string of base64 encoded data, it will automatically be decoded
prior to being expanded. If the expanded (uncompressed) data is
textual, then the output buffer can be a string or variant type. If
the expanded data is binary, the output buffer should always be a byte
array. Binary data that is expanded into a string buffer may be
corrupted because the data will be automatically be converted to
Unicode by this method. This conversion is not performed if the output
buffer is a byte array. If the caller specifies a
fixed-size byte array as the output buffer, the array must be large
enough to contain all of the expanded data, otherwise the method
The return value from this method should always be checked to
ensure that the data was successfully expanded. An application
should never assume that the output buffer contains valid data unless the return value is greater than zero.