473,225 Members | 1,402 Online
Bytes | Software Development & Data Engineering Community
Post Job

Home Posts Topics Members FAQ

Join Bytes to post your question to a community of 473,225 software developers and data experts.

Undo-/Redo-System?

I'm trying to implement an undo-/redo-system for my graphics
application. Currently I have a collection where each step of the
document is stored. But that way uses very much memory. Is there a
more performant way?
Jul 21 '05 #1
0 776

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

3
by: Patrick S | last post by:
I am using IE 6.0. On a page, I have placed a contenteditable div which I want to use as a Rich Text Area. I am using the execCommand method of the document to control bold, italics,...
2
by: Lyn | last post by:
Hi, I have a text control on a form which is bound to table field StartDate which is in Date format. When updating the table record via the form, any data entered into the StartDate control is...
5
by: Lyn | last post by:
Hi, In the BeforeUpdate event of a textbox control I have the following simplified code:- Private Sub StartDate_BeforeUpdate(Cancel As Integer) MsgBox "StartDate Error -- Please Check and...
2
by: Leslie | last post by:
On a form, I create a record and save, and am ready to enter another. I decide to Quit the form which executes an "Undo" in case there is data entered. This then tries to "delete" my just saved...
0
by: Wiktor Zychla | last post by:
I am still trying to get the Undo function work on Internet Explorer editor hosted as activex in my c# application. Some time ago I've found a note at msdn that says "undo is not supported". I...
10
by: John Richardson | last post by:
General question about how WinForms handles undoing a change during a control's validation, if it does at all. After a change to a control's value, if the data is determined to be invalid, then in...
4
by: lesperancer | last post by:
I've got a comboBox with 2 choices and based on the choice, I make button A or button B visible if choose choice 1, button A is visible now, I undo the choice so that the comboBox is null, but...
3
by: GoogleEyeJoe | last post by:
Dear ladies and gents, I'm trying to determine whether the .NET Framework implements a means of transactional processing without the need for a database. Essentially, I'd like to enlist...
4
by: =?Utf-8?B?UmljaA==?= | last post by:
Hello, Does vb2005 have a built-in UnDo feature / object for applications so that I can undo actions like other windows apps? Or do I have to write my own UnDo routine? If vb2005 does have a...
1
by: Jeremy | last post by:
I'm working on an application that does some DOM manipulation. I want to add a mechanism for "Undo" so that the user can revert to the previous state after performing a mistaken action. Simple...
0
by: veera ravala | last post by:
ServiceNow is a powerful cloud-based platform that offers a wide range of services to help organizations manage their workflows, operations, and IT services more efficiently. At its core, ServiceNow...
0
by: VivesProcSPL | last post by:
Obviously, one of the original purposes of SQL is to make data query processing easy. The language uses many English-like terms and syntax in an effort to make it easy to learn, particularly for...
3
isladogs
by: isladogs | last post by:
The next Access Europe meeting will be on Wednesday 3 Jan 2024 starting at 18:00 UK time (6PM UTC) and finishing at about 19:15 (7.15PM). For other local times, please check World Time Buddy In...
0
by: mar23 | last post by:
Here's the situation. I have a form called frmDiceInventory with subform called subfrmDice. The subform's control source is linked to a query called qryDiceInventory. I've been trying to pick up the...
2
by: jimatqsi | last post by:
The boss wants the word "CONFIDENTIAL" overlaying certain reports. He wants it large, slanted across the page, on every page, very light gray, outlined letters, not block letters. I thought Word Art...
2
isladogs
by: isladogs | last post by:
The next Access Europe meeting will be on Wednesday 7 Feb 2024 starting at 18:00 UK time (6PM UTC) and finishing at about 19:30 (7.30PM). In this month's session, the creator of the excellent VBE...
0
Git
by: egorbl4 | last post by:
Скачал я git, хотел начать настройку, а там вылезло вот это Что это? Что мне с этим делать? ...
1
by: davi5007 | last post by:
Hi, Basically, I am trying to automate a field named TraceabilityNo into a web page from an access form. I've got the serial held in the variable strSearchString. How can I get this into the...
0
by: MeoLessi9 | last post by:
I have VirtualBox installed on Windows 11 and now I would like to install Kali on a virtual machine. However, on the official website, I see two options: "Installer images" and "Virtual machines"....

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.