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Hi to everyone, i've a window form project in visual c++.
I want to put a while loop in a button click method(to see in a picture box some images taken from a memory buffer and every loop i refresh the picturebox) but this is the problem when i execute the project:
when i click on the button and enter the loop i can't do anything with the other controls of the form. Any suggestions how to resolve my problem?
Thanks for answers in advance, regards.
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I don't know what the command is in c++ but in .net it is Application.DoEvents(); So there must be something similar, but I am not sure what it is.
Ben
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Thank yuo very much. I try and works.
this is msdn for c++
Application.DoEvents Method
Processes all Windows messages currently in the message queue.
Namespace: System.Windows.Forms
Assembly: System.Windows.Forms (in system.windows.forms.dll)
SyntaxSyntax
C++
public:
static void DoEvents ()
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I wud suggest you to put it on different thread itself
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Win XP Pro, VS 2005 SP1
Just had a strange Data Execution Prevention error after upgrading my ClickOnce app. Then Explorer crashed with a memory corruption error and non-killable dialog box. I eventually killed it on the Process tab in Task Manager. Task bar and icons all went. Logged off and on and everything was back to normal. Ran the ClickOnce app. and it worked. Has anyone else experienced this? Or was it just coincidence.
Previous ClickOnce upgrades had been OK. The only difference is that with this one Visual Studio had not auto-incremented the version number initially. So I had to manually increment it before publishing.
Kevin
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I need to write a debugger which will execute an process and I need to get notification when that process will write or modify any thing on the hard disk. Can we keep watch on any process for getting info when that process will write to hard disk? I have read something about "Win32 Debug API". Can any one guide me or give me any demo code for this?
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I have created a Serializable class named "Student".
[Serializable]
public class Student
{
}
Also created a custom user control.
then i used the list<student> in the custom user control.
public class myControl : UserControl
{
List<student> students;
public List<student> Students
{
set
{
students = value;
}
get
{
return students;
}
}
}
the controls is performing exact and there is no any compilation error.
but if i use this control on any form then designer view of that form vanished out and display this error.
Object of type 'System.Collections.Generic.List`1[WindowsControlLibrary1.Student]' cannot be converted to type 'System.Collections.Generic.List`1[WindowsControlLibrary1.Student]'.
Kindly help that why the designer view of this form vanished out.
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I have a example.htm page I would like to be visible after windows XP have been locked, using Cttl-Alt-Del. There seem to be limitations on the file type that can be used, mainly pictures.
My htm document allows the display of live information from a server as a front end only, with no interactive access, which is what is required. But when the screen is locked or times-out after 5 mins and locks out I loose the display. The screen reverts back to the last know picture used or shows a blank page
I'm struggling as to where to look next for ideas, any help would be much appreciated.
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It is just my opinion, but I don't think it can be done. When the computer is locked, pretty much most things get locked down. I would think your best bet would be to create a screen saver and display the info you want with the screen saver.
Ben
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I've been looking at screensavers, but need an application that only looks at local computer files and links set by admin rights only. The application can not have any option to connect to the internet or intranet as this causes security issues.
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Hai
I am new to WinForms how to close Form1 when I moved to Form2 in a button click...
try until u succeed
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at the buttin click event create an instance of current form and the form u want open..try sumthing like this
At button click event:
currentform form1=new currentform();
formToOpen form2=new formToOpen();
form1.hide();
form2.show();
bye
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Rahul83 wrote: currentform form1=new currentform();
I'm sorry, but that plain will not work. It creates a new Form1, which will have no bearing on the one that is visible.
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )
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You can call Hide() to hide the visible form, and then show form2 using ShowDialog() if you want a modal form ( I presume you do, why would you want a modeless form attached to an invisible form ? )
A better approach is to define both forms as user controls and put them on the one form, and just swap which one is visible.
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )
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I'm always nervous about the new technology becoming the next VB6. So what is the future for a new app being developed with Winforms and C#? I can see a long upgrade path for this product and I have no interest in making a radical UI change anytime soon. Sure, I know about WPF, but the timing isn't right for my use of that platform.
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Well, VB6 was around for a fair while, and so has Winforms now been.
If you don't want to use WPF then WinForms is the only real option apart from C++/MFC ( which is kind of dead ). WPF is what will replace WinForms.
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )
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Thanks Christian. I'm already a C++/MFC guy and the choice is pretty confusing right now! I guess I'll follow my new found interest.
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Well, your best bet is to have good separation between business logic and presentation. Then if GUI technology evolves hopefully you'll have minimal work.
Kevin
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Windows Forms will be around for a long time, since it is an integral part of the .NET Framework. That being said, there are no new innovations planned for the WinForms technology as the new, preferred UI platform is WPF. The drawback to WPF right now is that the tools aren't available yet to make development as easy as it is for WinForms. The other concern for WPF is that it isn't yet applicable to every application. There are some things that are just better done in WinForms right now.
The best approach is to separate the business logic and the UI as much as possible. This will allow you to gradually migrate to WPF from WinForms when it makes sense. Also, you can combine WinForms and WPF in the same application, with a few technical limitations on the interop.
-----------------------------
In just two days, tomorrow will be yesterday.
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hello every body,
after i purchased a component for .net 2005, i used the clickonce technologie for making my project setup.when i am trying to install my project in the client side i can't the error message is: some dll are missed in the global assembly cache GAC .
can any body help me to install the project in the client side without installing these components.
10x regards
etretyertyery
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Hi tantoun.
To me it now looks like You want to install your application to your clients without having to install this component that you've bought.
My question to you is: Will your clients be able to run your application without this component?
If not I think that you just have to figure a way to install this component (a dll I guess) in your clients gac.
Cheers
Harry.
HarryS - Norway
Developer/Referee
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Hi!
Is there any possibility to use WPF-like spell-checking with Windows.Forms-Controls for example when .NET 3.0 is installed? 
Any info on this is warmly appreciated! 
Thank's in advance!
Greetings,
Stephan Eberle
se@deltacity.org
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Error Install Visual Studio 6 ? please help me
window Show Message
Erroe Signature
AppName: vs60wiz.exe AppVer: 6.0.0.8167 ModName: ntdll.dll
ModVer: 5.1.2600.2180 Offset: 00017a8c
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Can i use(apply) in Asp.net2.0 window Application "Themes and Skin" Property .
If yes then how to use ?
Ashish
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