Thanks to Tim Hastings for the Base64 functions.
VB6 STRING FUNCTIONS HOW TO
There are two types of functions in VB6, the built-in functions (or internal functions) and the functions created by the programmers. Re: How to convert String to Integer in VB6 Dim str As String. (): String Operations in C using vs2005 :was looking for vb.net and and vb6 kind string function like texttbox string length ,using substring,search string in main string. Ive given up on the VB string functions, mostly due to their 1-based. Hi QM, It is largely a matter of style and it would be a mistake for me to try to promote style.Some text processing routines (e.g., when working with a database. The first time I started trying to understand the VB6 string functions I was somewhat confused. In VB6, the phrase 'normalizing spaces' does not refer to fixing abnormal spaces it refers to removing excess spaces in a string.
VB6 STRING FUNCTIONS WINDOWS
'note we can't add any 0 padding to the test binary stringīinOut = byte2Bin(decodeBase64(encodeBase64(bin2Byte(bin)))) A function is similar to a procedure but the main purpose of the function is to accept a certain input from the user and return a value which is passed on to the main program to finish the execution. in VB6 we can use String Function for repeating character string of the length specified, what can be used in windows mobile or visual studio The functions that return strings can be coded with or without the dollar sign () at the end, although it is more efficient to use the version with the dollar sign. Private Function decodeBase64(ByVal strData As String) As Byte()įunction bin2Byte(ByVal s As String) As Byte()īytes(byteCount) = bytes(byteCount) + CLng(Mid$(sByte, 8 - i, 1)) * 2 ^ iįunction byte2Bin(ByRef bytes() As Byte) As Stringīyte2Bin = Replace(byte2Bin, " ", "0", 1, -1, vbBinar圜ompare) Set objNode = objXML.createElement("b64") Private Function encodeBase64(ByRef arrData() As Byte) As String We found out that Len and LenB are the fastest functions. The test was run on a typical Pentium 4 processor (2.8 GHz). exe, which called each function 100 million times. Tell us what the general format of the possible strings is (with widths where known) and we can try to help further. Here are some functions to convert a binary string, to a byte array, to a Base64 string and then back to a byte array and binary string. We are now going to measure how fast the various built-in string functions of VB6 really are. Use the InStr(.) and InstrRev(.) functions to find the positions of the numeric part of the string if you have specific strings that delimit the number in the string, and then use Mid().
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