473,545 Members | 2,627 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

Double Buffering in ListBox with OwnerDraw doesn't work?

Dear all,

This is the situation:
I have a custom subclass of ListBox
- OnDrawItem overriden
- OnSelectedIndex Changed overriden
- DrawMode.OwnerD rawFixed (same issue with OwnerDrawVariab le)
However, when I activate double buffering with
SetStyle(COntro lStyles.AllPain tingInWmPaint|C ontrolStyles.Us erPaint|Control Styles.DoubleBu ffer,true)
The items are not drawn on the screen, but they seem to be there. If I click on them
the Item is displayed correctly.

Any hints on double buffering in ListBox components?

kind regards,
SrTnxALt
Nov 17 '05 #1
0 1457

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

Similar topics

1
4446
by: David | last post by:
Hello I'm writting an apllication and i like to display and offscreen image. However my code doesn't seem to work. It compiles and runs properly but What i want is to associate the button of the menu to switch an image (actually to add rectangels offscreen and bring it to the front). The following codes runs properly. You just need to create...
5
2412
by: DraguVaso | last post by:
Hi, I have my custom Inherited DataGrid. I override the OnPaint-event to speed up things and avoid flikkering using Double Buffering. To draw the normal things of the DataGrid I have to call the MyBase.OnPain(pe). But in my opinion it doesn't seem to be painted on the buffer. Everything works fine, but I think it should work better if my...
2
3448
by: Jason | last post by:
I have created a 2d isometric game map using tiles and now I'm trying to move around my map..when i go near the edge of the map I want to redraw the map to show new parts of the map however the screen flicker a good bit while this happens. I'm using GDI+ and it say in MSDN that double buffering will fix this but it didnt work for me. ...
2
5597
by: Dan Neely | last post by:
My dialog has groupboxes with slow to redraw controls, to improve the appearance I want to doublebuffer it. While I can use SetStyle() in the Dailogs constructor the setting change doesn't get propagated to the groupbox, and since it's a protected method I can't call groupbox.SetStyle(). I've tried deriving a custom class from...
4
8604
by: Robin Tucker | last post by:
I wanted to enable double buffering for my list view control to avoid flicker when adding or removing new records, so I subclassed it. However, I just plain don't get ANYTHING displayed after enabling double buffering. Is there more to this functionality than meets the eye? Public Class ListViewDblBuffer Inherits ListView
2
1424
by: Rlrcstr | last post by:
I'm rolling my own with a listbox. The items in the list box are of varying sizes and I'm hit checking when the litbox is checked to see what portion of an item the user has clicked on. Mostly it works fine. The only issue I'm running into is when the item that th users clicks is at the bottom of the listbox and is not completely...
7
6505
by: Rain | last post by:
Hello Gurus! I really need this one to finish a module in my thesis. PLease please help me. I need a double buffer class so i can call it and use it anytime i want, the problem is everything ive tried as a class doesnt work.. please please help. I only need the double buffering of controls, graphics... as a class. Can anyone help me with...
1
1821
by: TyBreaker | last post by:
I notice in VB 2005 that I can set a form to be double-buffered just by setting that option to true in the Form properties. I have a panel on that form but there doesn't appear to be a double-buffered property for the panel control. My first question: is the double buffering set on the form inherited by the panel control or do I have to do...
3
4366
by: Leanne | last post by:
Hello, I am trying to increase the itemheight in listbox so that it is easier for user to touch the item. Is it possible to do that while I set DrawMode=Normal? Do I have to set DrawMode to OwnerDraw in order to do any change? Any one got an idea? Thanks Leanne
0
7496
marktang
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, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main...
0
7428
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 effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it. First, let's disable language...
0
7685
Oralloy
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, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed. This is as boiled down as I can make it. ...
0
7941
jinu1996
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 tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that...
1
7452
by: Hystou | last post by:
Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For...
0
6014
agi2029
by: agi2029 | last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then...
0
5071
by: conductexam | last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one. At the time of converting from word file to html my equations which are in the word document file was convert...
1
1916
by: 6302768590 | last post by:
Hai team i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
1
1039
muto222
by: muto222 | last post by:
How can i add a mobile payment intergratation into php mysql website.

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.