Re: How can I make one Form show another? - C# Discussion Boards

jesus4u14-Jul-03 10:18

14-Jul-03 10:18

I am trying to get the ClassName of the Opera browser and then read the url from the address bar but I can't seem to get the name of the address bar. What is it? I am using Spy++ and no luck. Other browsers' address bars are typically called "Edit" but not in Opera.

[code]
Declare Function GetClassName Lib "user32" Alias "GetClassNameA" (ByVal hwnd As Long, ByVal lpClassName As String, ByVal nMaxCount As Long) As Long

[/code]

Re: Opera Browser - GetClassName!

dynamic14-Jul-03 11:04

dynamic

14-Jul-03 11:04

i think you got my answer to your question on the dotnet forum , but here it is anyway Smile | :)

btw it's vb.net ( this is a C# section ) Wink | ;)

VB:

<font color="blue">Private</font> <font color="blue">Declare</font> <font color="blue">Function</font> FindWindow <font color="blue">Lib</font> "user32.dll" <font color="blue">Alias</font> "FindWindowA" (<font color="blue">ByVal</font> lpClassName <font color="blue">As String</font>, <font color="blue">ByVal</font> lpWindowName <font color="blue">As String</font>) <font color="blue">As Integer</font>
    <font color="blue">Private</font> <font color="blue">Declare</font> <font color="blue">Function</font> GetClassName <font color="blue">Lib</font> "user32.dll" <font color="blue">Alias</font> "GetClassNameA" (<font color="blue">ByVal</font> hwnd <font color="blue">As Integer</font>, <font color="blue">ByVal</font> lpClassName <font color="blue">As</font> System.Text.StringBuilder, <font color="blue">ByVal</font> nMaxCount <font color="blue">As Integer</font>) <font color="blue">As Integer</font>


    <font color="blue">Private</font> <font color="blue">Sub</font> Button1_Click(<font color="blue">ByVal</font> sender <font color="blue">As</font> System.Object, <font color="blue">ByVal</font> e <font color="blue">As</font> System.EventArgs) <font color="blue">Handles</font> Button1.Click
        <font color="blue">Dim</font> x <font color="blue">As Integer</font> = FindWindow("OpWindow", vbNullString)
        <font color="blue">Dim</font> s <font color="blue">As</font> System.Text.StringBuilder = <font color="blue">New</font> System.Text.StringBuilder(255)
        GetClassName(x, s, s.Capacity)
        MessageBox.Show("the opera browser's hwnd is: " & x & Chr(13) _
        & "the window name is: " & s.ToString)
    <font color="blue">End</font> <font color="blue">Sub</font>

Vb:

<font color="blue">Public Function</font> TwinsOnWay(<font color="blue">ByVal</font> twins <font color="blue">As String</font>) <font color="blue">As String <br>     Select Case</font> twins<br>         <font color="blue">Case</font> "Gender" <br>             <font color="blue">Return</font> "Two Girls" <br>     <font color="blue">End Select <br> End Function</font> <br>

xml comment tags

stonee7414-Jul-03 9:06

stonee74

14-Jul-03 9:06

Hi there,
I am havin an enormous amount of c++ comments

/**
blabla
**/

to be translated into xml tags

///<summary>
/// blabla
///</summary>

is there a way to automate this in vs .net 2003

thaks,
stonee

Re: xml comment tags

Daniel Turini14-Jul-03 9:36

Daniel Turini

14-Jul-03 9:36

stonee74 wrote:
is there a way to automate this in vs .net 2003
Macros.

ORACLE One Real A$#h%le Called Lary Ellison

Re: xml comment tags

Eric Gunnerson (msft)14-Jul-03 11:27

Eric Gunnerson (msft)

14-Jul-03 11:27

You could do it with macros, but I don't think I would. I'd be more likely to write a C# program that opened the file and used regex to do the replacements. I'd use a regex something like:

Regex regex = new Regex(@"
/\*\* # start of comment
\s+
(?<comment> # capture to named Comment
.+?\s+ # comment text
) # end of capture
\s+
\*\*/ # end of comment.",
RegexOptions.Singleline |
RegexOptions.IgnorePatternWhitespace);

and then use a MatchEvaluator function like:

static public string Evaluator(Match match) {
string[] lines = match.Groups["Comment"].Value.Split('\n');
for (int i = 0; i < lines.Count; i++)
lines[i] = "///" + lines[i];
return String.Join("\n", lines);
}

WebBrowser bug- application won't die.

Bog14-Jul-03 8:59

Bog

14-Jul-03 8:59

If you put a WebBrowser control in a Form, and then put that Form inside another Form (set it's Parent to the other form and set TopLevel to false, which is perfectly legal according to the docs), then when you quit your application (close the outer Form), it will stay resident in memory and eat up 100% of CPU time. (You can see it doing this in the Task Manager). This is probably caused by that OLEinPlace stuff somehow but I don't know OLE so that's totally a guess.

This is a HUGE problem for me. MASSIVE!!

Dead | X|

"Outside of a dog, a book is Man’s best friend. And inside of a dog, it’s too dark to read."
-Groucho Marx

How can I make one Form show another?

Anonymous14-Jul-03 8:26

Anonymous

14-Jul-03 8:26

Hello all,

Here's my problem. I have a Windows Form with some controls on it. When the user clicks a button, I want a second form to appear, and the first one to be hidden. I've drawn up both forms, so how can I make Form1 display Form2?

Thanks!

Re: How can I make one Form show another?

J. Dunlap14-Jul-03 8:34

J. Dunlap

14-Jul-03 8:34

Form2 frm=new Form2();
frm.Show();
this.Hide(); //or this.Close();

Anonymous? Frown | :(

"Blessed are the peacemakers, for they shall be called sons of God." - Jesus

"You must be the change you wish to see in the world." - Mahatma Gandhi

Re: How can I make one Form show another?

Anonymous14-Jul-03 8:36

Anonymous

14-Jul-03 8:36

Thanks. Sorry for posting Anon. I forgot my password and I'm on a coding spree, so don't want to hunt it down. Smile | :)

Re: How can I make one Form show another?

J. Dunlap14-Jul-03 8:44

J. Dunlap

14-Jul-03 8:44

Ok.

"Blessed are the peacemakers, for they shall be called sons of God." - Jesus

"You must be the change you wish to see in the world." - Mahatma Gandhi

Actually I do have one more question

Anonymous14-Jul-03 8:46

Anonymous

14-Jul-03 8:46

I have one other detail I hope you won't mind answering. When the second form is closed via the close button (next to the minimize and maximize buttons in the upper right) the second form is disposed. However, Form1 remains, albeit hidden. So the program doesn't terminate.

I've tried calling Form1.Dispose() after Form2 is shown but that just quits the program. Any thoughts on how I can make the program quit when the user clicks the X?

Re: Actually I do have one more question

J. Dunlap14-Jul-03 8:48

J. Dunlap

14-Jul-03 8:48

You'll want to do this.Close(), not this.Hide. But that will release the ref to Form2, which may make it close, too. How about

Application.Run(new Form2());
this.Close();

"Blessed are the peacemakers, for they shall be called sons of God." - Jesus

"You must be the change you wish to see in the world." - Mahatma Gandhi

Nope, no love.

Anonymous14-Jul-03 8:53

Anonymous

14-Jul-03 8:53

I get this error:

An unhandled exception of type 'System.InvalidOperationException' occurred in system.windows.forms.dll

Additional information: It is invalid to start a second message loop on a single thread. Use Application.RunDialog or Form.ShowDialog instead.

Trying Application.RunDialog gives me this error:

C:\Documents and Settings\...\Form1.cs(402): 'System.Windows.Forms.Application.RunDialog(System.Windows.Forms.Form)' is inaccessible due to its protection level

Not sure exactly what that means, but any other thoughts? (Oh, and this.Close() on Form1 does quit the app.)

Fixed it, kinda

frogb0x14-Jul-03 8:57

frogb0x

14-Jul-03 8:57

I went into the Closed event for Form2 and just put in this line, which works:

Application.Exit();

Still, I'd like to know if there's a way to do it without having to add that.

PS: Since I'm posting so much, I thought I should hunt down my p/w and login! Wink | ;)

Re: Fixed it, kinda

J. Dunlap14-Jul-03 8:59

J. Dunlap

14-Jul-03 8:59

That's the way I was going to suggest doing it. Smile | :)

frogb0x wrote:
Since I'm posting so much, I thought I should hunt down my p/w and login!

Big Grin | :-D

"Blessed are the peacemakers, for they shall be called sons of God." - Jesus

"You must be the change you wish to see in the world." - Mahatma Gandhi

Re: Fixed it, kinda

frogb0x14-Jul-03 9:00

frogb0x

14-Jul-03 9:00

So it seems that's the only way to do it, eh? Cool. Thanks for all your help! Smile | :)

DirectShow .NET HELP!!!

Brian JR14-Jul-03 8:17

Brian JR

14-Jul-03 8:17

God, I'm hoping some of you can help me here. I need DIRECTION.

I want to create a .NET application. I want to use C# language since it seems good for rapid application development.
I want to create the user interface (GUI) using the Visual Studio IDE form design.

Tell me if the following is possible:

I want to use DirectShow AND the Microsoft Speech .NET SDK in the SAME application. How can I do this? All the DirectShow examples are written in C++. All the .NET speech examples are written in C#.

Can I write the bulk of my application in C# and use C++ only for the DirectShow portion of it? Is this possible too?

Also, I'd like to "skin" my application, or in the very least give it some "personality" with rounded buttons and some custom controls that I create myself. Can I still use the Win32 API and "layered" windows to skin a GUI created with the "forms" wizard in Visual Studio? Is there any other way of creating that "custom" look?

I'm new to this stuff and I'm really confused. What's worse, is that I read all kinds of stuff about "managed code" and how DirectShow does not use managed code... DirectShow is built upon COM objects.... .NET allows one to mix managed and unmanaged code in the same application.... blah blah blah.... HELP!!!

All I want is some direction and advice on what to do 1st, 2nd, 3rd... I just don't know where to start... I don't want to read a 400 page book on ATL and COM if I'll be using C# which hides the COM internals... you know what I mean? HELP!!!

Re: DirectShow .NET HELP!!!

Mazdak14-Jul-03 9:30

Mazdak

14-Jul-03 9:30

Brian JR wrote:
All the DirectShow examples are written in C++.

http://www.codeproject.com/useritems/DirectDraw.asp[^]

http://www.codeproject.com/useritems/Direct_Show_-_Playa.asp[^]

Mazy

No sig. available now.

Navigating to a new page and Communicating with C++

pdunn14-Jul-03 7:48

pdunn

14-Jul-03 7:48

Hello, I am new to C# and ASP.NET, I have previously used ASP.
Inside my C# codebehind file, I open a database and get out
information. Now depending on that information I would either go to
the start page or show a text box and button for more information.
How do I move to another page without the action="page.aspx"
attribute? How do I pass information from C# like the user name to
C++ inwhich is using a HtmlView?

Re: Navigating to a new page and Communicating with C++

Mazdak14-Jul-03 9:35

Mazdak

14-Jul-03 9:35

pdunn wrote:
How do I move to another page without the action="page.aspx"

If you want to do it in code behind you have to use this:

Response.Redirect("yourpage.aspx");

Mazy

No sig. available now.

Updating IE automatically

Meysam Mahfouzi14-Jul-03 6:50

Meysam Mahfouzi

14-Jul-03 6:50

Is there any way to automatically upgrade IE to a appropriate version (>5.01) before installing .Net Framework if needed ?

Don't forget, that's

Persian Gulf

not Arabian gulf!

Re: Updating IE automatically

Not Active14-Jul-03 7:03

Not Active

14-Jul-03 7:03

I thought the framework installer took care of that. Confused | :confused:

Re: Updating IE automatically

Meysam Mahfouzi14-Jul-03 18:36

Meysam Mahfouzi

14-Jul-03 18:36

Unfortunately you are wrong! Frown | :(

Don't forget, that's

Persian Gulf

not Arabian gulf!

ReceiveFailure problem

viperxp14-Jul-03 6:49

viperxp

14-Jul-03 6:49

Hi,

I am doing a proxy-based ad blocker with C# as my degree project.

I am using mainly the HttpWebRequest & HttpWebResponse classes to perform HTTP redirection.

i wonder why i am getting ReceiveFailure errors quite often nowadays whenever i execute the GetResponse() method of HttpWebRequest, when dealing with images. consequently, the page is displayed with some missing images...

.. but when i test loading the page with a direct connection, everything is fine, and the page looks perfect.

previously, i was testing the same code with a dialup connection, and this problem rarely happens. but now, with my adsl connection, i am beginning to face this weird prob. i dun think adsl is the cause, nor dialup will fix the prob.

can anyone give me an idea on wut's happening, and how to solve this prob.

thanks.

Stopping a service - programmatically

Anonymous14-Jul-03 6:16

Anonymous

14-Jul-03 6:16

I have written a fairly complex service that pulls data from a database, merges this into Word documents and then emails the result to specified addresses

The problem I have is that the COM code I am using to handle the connectivity between the C# service and word is a little 'shakey' so when my application throws an exception I want the service to shut itself down.

The only code/tutorial I have come across is located here :

http://support.microsoft.com/default.aspx?scid=KB;en-us;q245230[^]

But as I am by no means a C++ expert this may aswell be written in Chinese.

Does anybody have any ideas on how I can get this service to shut itself down?

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.