|
1 - If a PC does not have .NET, I believe it will just crash, you need to provide an installer that also installs it.
2 - If you have permission, you can write to any file on the PC. Which means, if it's Vista, you won't have permission 
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 )
|
|
|
|
|
In Visual Studio, right-click your solution and select Add New Project. For the project type, find the Setup Project (it should be under Other Project Types-> Setup and Deployment)
One of the things you can do in such a project is specify prerequisites. One such prerequisite will be the .NET framework. You can tell it to download the prerequisite from the vendor's website - in this case, it will automatically know where to download the .NET framework from.
If this isn't enough detail, there are several very good articles on this website describing how to do this in extreme detail.
*****
For the hosts file, you may want to consider not making that edit. While (on XP) nothing stops you from doing so, it is considered by some antivirus and anti-malware programs to be virus or malware-like behavior and it will be immediately stripped out.
Unless you can guarantee that the end user's system won't do that, you shouldn't rely on it.
Unless there's some convincing reason you actually MUST use a hostname, it might just work better for you to use the IP address.
But yes, this can be done programatically. The hosts file is just a file on the computer like any other and edits to it take effect immediately. It is located at %SYSTEM%\drivers\etc\hosts, and the best thing to do is probably just append a line at the end so as not to alter any existing custom hosts (for example, I put some in there sometimes when websites I'm working on haven't resolved through DNS yet).
|
|
|
|
|
Thanks for your detailed reply.Its working fine.
But I have one more doubt regarding memory usage.When I run the application the memory is 170 000K, when I minimise the app, it drops drastically.
Is it ok?I heard the task manager does not show accurate memory usage.
Do I need to take any action?
Or in the start of the program, do I programmatically minimise the form and maximise again?
Please clarify my doubts.
Thanks
|
|
|
|
|
Krypton 2.5.1 Released
For those not familiar with Krypton, it contains the FREE (as in beer)
Krypton Toolkit that allows Windows.Forms developers to create Office 2007 style applications both quickly and easily. You can use a single line of code to alter the global palette and so the entire look and feel of your application.
It includes the following...
Extensive samples in C#
Full integrated documentation
Visual Studio templates for quick start
Support via forums
Visiblity of changes via blog
Download it using the following link...
http://www.componentfactory.com/downloads/KryptonToolkit251.msi
Regards
Component Factory
|
|
|
|
|
The way I see it, you have two options
1 - post an article on this site ( that would rock )
2 - pay for advertising ( really, you'd only choose this if your code was not 100% and unencumbered ).
Either way, thanks for supporting the site, and not spamming it again.
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 )
|
|
|
|
|
I would love to write some articles that show how to use the free Krypton Toolkit. I didn't think that was allowed; because although I can provide the install for the Toolkit, and the Toolkit is free even for commerical use, I cannot provide the actual source code. Would it be ok to provide just the build?
|
|
|
|
|
OK, I'm not sure about that, I'd suggest writing to Chris and asking him.
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 )
|
|
|
|
|
well just want to say hiya to start with.
i need a bit of healp on C# GUI programming.
the problem i have is this.
i need to vreate a C# forms appliction that access data from the registry.say the CPU speed for example.
then it need to display it on the forums.how do i do this.
thanks guys!
Ashley
|
|
|
|
|
If you're wanting the CPU speed, you should be looking at WMI since the CPU speed is not kept in the registry. Look in your help files for "Registry Class". The examples there are quite good for basic information. If you have questions beyound that information, by all means please ask.
Phil
|
|
|
|
|
hi phil thanks for replying.
all i need to do is access the reg or WMI and display the info on a GUI win app project.
i dont suppose you have any example code at all do you.
thanks!
|
|
|
|
|
There are many examples of that on this web site. Do a search for "Registry" or WMI and you will get a number of hits. Be sure to limit your search to C# and you will get mostly C# articles. You should download the examples and go through them.
Phil
|
|
|
|
|
do you have a link to just one of them.
the only ones i can find are console and does not help me at all.
i cant seem to find anything on forms programming.
thanks!
x
|
|
|
|
|
Ok, now I understand the problem you are having. I believe it is this:
You have a control on your form such as a text box in which you want to place a value. The value might be the current CPU usage or other value. But you can't seem to display it on the form.
Try doing the following:
Add a button to your form
Add a textbox to your form
Double click on the button which will generate the _Click(...) stub. In this stub do the following:
Pseudo code
int myValue = 110; // Replace this line with a query to WMI or the Registry
TextBox.Text = myValue.ToString();
End Pseudo code
The second line in the pseudo code block I believe is the information you seem to be missing.
Phil
|
|
|
|
|
hi,
I originally wrote an object as a struct, and now I am changing it to a class.
In one of my member methods I want to pass "this" by reference to a method in another class and I get teh below error when I try to build? Is this common? Anyone know why it works with a struct and not a class?
Cannot pass '<this>' as a ref or out argument because it is read-only
thanks
cb
|
|
|
|
|
Hi,
for structs, ints and other simple data types, "this" is the value itself
(hence the name "value types"); you may add the "ref" keyword to obtain a
reference to it (similar to a pointer in C/C++).
for class instances, "this" is a reference (hence "reference types"),
so it behaves as a pointer would in C/C++; hence you should drop the "ref"
all together when switching from struct to class.
|
|
|
|
|
Hi,
as Luc already suggested, you can just drop the 'ref' from your method's parameter and everything should work. I will just add some explanation why you must not pass 'this' as a ref parameter.
If you have a value object (a struct) and you pass it by value (no 'ref' parameter) to the method, the method gets its own copy and the original will not be affected by any changes made in the method. If the value object is passed by reference, all changes do affect the original.
If you have a reference object (a class) and you pass it by value, the reference itself is copied. Thus you have two references to the same object. If the method changes the referenced object, the changes will affect the original. However, if the method changes the reference itself (e.g. set it to 'null'), this will not affect the original reference. If you pass the reference object as a reference parameter, you are able not only to manipulate the referenced object but also the reference itself. Sometimes this is the desired behaviour, but you definitely don't want enable any method to set your 'this' reference to 'null'. Therefore 'this' is read-only and must not be passed by reference.
Hope this helps.
Regards,
Tim
|
|
|
|
|
Hi,
I need help in reading an edit box from one application (java) to a C# application.
Currently (using Spy++ / Winspector as reference) I have been able to locate the parent handle of the java application using FindWindow like so:
IntPtr hWndParent = FindWindow(null, "Application Name");
I then find the correct child handle by looping through all the child handles until I get to the actual edit box on the java application using FindWindowEx like so:
IntPtr hWndChild = FindWindowEx(hWndParent, IntPtr.Zero, null, null);
Now that I have the address of the edit box, I am wanting to pull the actual data stored in the edit box and save it into the C# application.
jn
|
|
|
|
|
You need to use p/invoke to call GetWindowText on that text box via it's handle.
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 )
|
|
|
|
|
I have read that GetWindowText will not work if I am reading any control outside of the application that is outside of the calling application.
|
|
|
|
|
True! You can also send the WM_GETTEXT message to the window handle without running into that restriction.
But, of course, it gets worse! There nothing that say that the target edit box has to respond to either request! You could go through all this junk and find out that the edit box doesn't care about that message and won't respond to it.
Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007
|
|
|
|
|
I have a database application that uses a DataGridView to display all records and textboxes, comboboxes, checkboxes, etc., to display each individual record. The user edits the individual record controls to update (or add) records. The comboboxes text field is bound to the appropriate data item in the datatable. Unfortunately, though I can select a new item from the combobox, that item does not get updated to the datasource when I save any updates. The textboxes and such do get updated. Can anyone explain to me why this is the case? Thanks.
|
|
|
|
|
Hello! Sorry for my million annoying questions, but i have another one.
So:
I have i RichTextBox, and i click in the center of some word.
How can i get a full word ?
(is there some methods, or i have to move left and right to spaces?)
Thanks!
One nation - underground
|
|
|
|
|
With the System.Windows.Forms.RichTextBox, yes, you have to do your own code to figure out the word given a location.
If you use the Windows Presentation Foundation (WPF) RichTextBox, there's some built-in things to help you get the run/word/paragraph at a particular point, IIRC.
|
|
|
|
|
Hi guys, I am not sure why everyone is moving on C# besides it microsoft technlogy, provide drag and drop functionality and easy to do programming and coloured syntax. If C++ is powerfull why there wasn't any work get done on it. Infact Windows is also written in C/C++. How come there wasn't any VS2005 kind of editor for C/C++ programmers that could have the "." style object lists . Wouldn't it better if we could have more developement in C++ Apis,syntaxs, memory managements, plug and play controls and component based control progrmaming so we can get more control over what we want to achieve rather than calling C/C++ API functions in C# programming.
Thanks
|
|
|
|
|
netJP12L wrote: How come there wasn't any VS2005 kind of editor for C/C++ programmers that could have the "." style object lists .
VS2005 does C++, and does it pretty well.
C# is easier to use, and easier to write most types of Windows apps. I write some pretty complex and non standard code in C#, it works just fine. If Microsoft were to go under, C# is subject to an external standard, but, either way, I'd lose my platform as well. I know C++, I have been a C++ MVP, as it happens ( I am now a C# MVP, should change my sig ). But, C# is a better tool for a lot of jobs, in my experience. Why would a client pay me double to have the same functionality, have it take twice as long, so they can say it's written in C++ ?
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 )
|
|
|
|
General 
News 
Suggestion 
Question 
Bug 
Answer 
Joke 
Praise 
Rant 
Admin 
Submit an article or tip
