Converts a value stored in a specified position in a buffer to an Alpha string.
Syntax:
BufGetAlpha(variable reference, position, storage, length, value as pointer)
Parameters:
variable reference – The reference to the BLOB variable containing the buffer. For example, 'A'VAR
position – The numeric value defining the starting position of the conversion method.
storage – A numeric value representing a valid storage type in Magic xpa. For a list of storage types, see Magic xpa Storage Types.
length – A numeric value representing the storage length.
value as pointer – A logical value indicating if the Alpha value should be written directly to the buffer or as a pointer to the data. If you enter True, Magic xpa writes the Alpha value as a pointer.
Returns:
An Alpha string when the conversion succeeds. An empty string when the conversion fails.
The function fails when the:
Position parameter has a negative value.
Position and length parameters are not part of the BLOB's content.
Storage parameter does not contain a valid number.
