Dynamically allocated memory - Visual Basic 4 / 5 / 6

Ralph Krausse

How can I dynamically allocate memory in VB? I wish to do this....

Dim szData as String * 250

I can't allocate memory like this cause I am not sure how much to alloate.

I want to do something like this..

dim iLen as Integer
dim szData as String

iLen = CalcSize()
Now allocate szData to the length of iLen....

Please help

Thanks
Ralph Krausse
www.consiliumsoft.com
Use the START button? Then you need CSFastRunII...
A new kind of application launcher integrated in the taskbar!
ScreenShot - http://www.consiliumsoft.com/ScreenShot.jpg

Jul 17 '05 #1

Subscribe Post Reply

2658

Raoul Watson

"Ralph Krausse" <go*******@consiliumsoft.com> wrote in message
news:49**************************@posting.google.c om...

iLen = CalcSize()
Now allocate szData to the length of iLen....

REDIM szData(iLen)

Jul 17 '05 #2

Randy Birch

Dim szData as String
iLen = CalcSize()
szData = space$(iLen)

.... or, of for APIs, you can also use:

szData= string(iLen, vbnullchar)

--

Randy Birch
MVP Visual Basic
http://vbnet.mvps.org/
Please respond only to the newsgroups so all can benefit.
"Ralph Krausse" <go*******@consiliumsoft.com> wrote in message
news:49**************************@posting.google.c om...
: How can I dynamically allocate memory in VB? I wish to do this....
:
: Dim szData as String * 250
:
: I can't allocate memory like this cause I am not sure how much to alloate.
:
: I want to do something like this..
:
: dim iLen as Integer
: dim szData as String
:
: iLen = CalcSize()
: Now allocate szData to the length of iLen....
:
: Please help
:
: Thanks
: Ralph Krausse
: www.consiliumsoft.com
: Use the START button? Then you need CSFastRunII...
: A new kind of application launcher integrated in the taskbar!
: ScreenShot - http://www.consiliumsoft.com/ScreenShot.jpg

Jul 17 '05 #3

Similar topics

Dynamically created structures ???

by: Peter Olcott | last post by:

I want to be able to efficiently build data structures at run-time. These data structures need to be accessed with minimal time. The only a few ways that come immediately to mind would be some...

C / C++

What scope have dynamically allocated memory

by: Tony Johansson | last post by:

Hello Experts!! When you instansiate varaibles(object) you can do so in four different scops which are. Within a block which is called Local or block scope . Within a function which is called...

C / C++

How to find the size of dynamically allocated struct-type variable?

by: nmtoan | last post by:

Hi, I could not find any answer to this simple question of mine. Suppose I have to write a program, the main parts of it are as follows: #include <blahblah.h> struct {

C / C++

making sure that the deallocated dynamically memory returns to the heap?

by: yogpjosh | last post by:

Hello All, I was asked a question in an interview.. Its related to dynamically allocated and deallocated memory. eg. //start char * p = new char; ...

C / C++

What's the benefit to dynamically allocate memory?

by: Michael | last post by:

Hi, What's the benefit to dynamically allocate memory? using namespace std; int main() { char* ptr; ptr="abc";

C / C++

delete dynamically allocated memory in a list?

by: akywy | last post by:

Two questions about the following code sample: --- code begins --- //class IPv4 is defined elsewhere list<IPv4> ip_list; for (int i=1; i<=9; i++) { char addr; ...

C / C++

General method for dynamically allocating memory for a string

by: smnoff | last post by:

I have searched the internet for malloc and dynamic malloc; however, I still don't know or readily see what is general way to allocate memory to char * variable that I want to assign the substring...

C / C++

Dynamically Allocated Multi-Dimensional Arrays

by: bwaichu | last post by:

Is my understanding of the allocation of these correct? I used fixed sized allocations for the example below, so I realize there is some optimization that can be done to those. I would like to...

C / C++

Dynamically Allocated Memory

by: Jinkuzo | last post by:

Have been working on this project for a week, unfortunately missed the lesson on it and have been struggling to figure it out. These are the instructions and the point at which I'm up to. ...

C / C++

delete the dynamically allocated memory twice causes error

by: tom | last post by:

why delete the dynamically allocated memory twice causes an error, see the code below: int _tmain(int argc, _TCHAR* argv) { int *pi = new int(12); cout<<*pi; delete pi; delete pi; }

C / C++

Basic Javascript concepts

by: aa123db | last post by:

Variable and constants Use var or let for variables and const fror constants. Var foo ='bar'; Let foo ='bar';const baz ='bar'; Functions function $name$ ($parameters$) { } ...

Javascript

Batch import of multiple excel files into the database

by: ryjfgjl | last post by:

If we have dozens or hundreds of excel to import into the database, if we use the excel import function provided by database editors such as navicat, it will be extremely tedious and time-consuming...

Data Management

Navigating the Data Structures and Algorithms (DSA)

by: BarryA | last post by:

What are the essential steps and strategies outlined in the Data Structures and Algorithms (DSA) roadmap for aspiring data scientists? How can individuals effectively utilize this roadmap to progress...

Algorithms / Advanced Math

Is that possible of reading the .csv file in column wise and the column have different lengths ?

by: Sonnysonu | last post by:

This is the data of csv file 1 2 3 1 2 3 1 2 3 1 2 3 2 3 2 3 3 the lengths should be different i have to store the data by column-wise with in the specific length. suppose the i have to...

C / C++

How to build RAID in BIOS?

by: Hystou | last post by:

There are some requirements for setting up RAID: 1. The motherboard and BIOS support RAID configuration. 2. The motherboard has 2 or more available SATA protocol SSD/HDD slots (including MSATA, M.2...

Computer Hardware

What is ONU?

by: marktang | last post by:

ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However,...

General

Changing the language in Windows 10

by: Hystou | last post by:

Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can...

Windows Server

Problem With Comparison Operator <=> in G++

by: Oralloy | last post by:

Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers,...

C / C++

Maximizing Business Potential: The Nexus of Website Design and Digital Marketing

by: jinu1996 | last post by:

In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven...

Online Marketing