How do applications get permission to create keys hkey_classes_root? - C# Discussion Boards

mehrdadc4819-Jul-07 11:05

19-Jul-07 11:05

Hi.
I saved a wav file in a resource file in VS in binary.
Now how can I play it with media player object (ax)?
media player only give url to play.

Best wishes

Re: Resource

Christian Graus19-Jul-07 15:35

Christian Graus

19-Jul-07 15:35

I don't think you can, without making a local copy.

Christian Graus - Microsoft MVP - C++

"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 )

Adding EventHandler

mmfranke19-Jul-07 10:24

mmfranke

19-Jul-07 10:24

Hi.

When adding eventhandlers to events, what's the difference between:

foo.SomeEvent += Bar.OnSomeEvent;

...and...

foo.SomeEvent += new EventHandler ( Bar.OnSomeEvent );

?

Thanks.

Re: Adding EventHandler

MidwestLimey19-Jul-07 11:08

MidwestLimey

19-Jul-07 11:08

In the first case the compiler type checks that Bar.OnSomeEvent has the same delegate type as SomeEvent and inserts the Delegate.Combine call with the inferred delegate type.
In the second, you're doing part of the compilers work yourself by explicitly telling it the delegate type.
The msil code for both will be identical.

I'm largely language agnostic  
     After a while they all bug me  

Re: Adding EventHandler

mmfranke19-Jul-07 11:15

mmfranke

19-Jul-07 11:15

OK, thanks. So why are most of the samples I see written the second way? The first way is leaner. Is this some sort of leftover from older coding practices or something? Maybe .NET 1.x?

Thanks again.

Mike

Re: Adding EventHandler

MidwestLimey19-Jul-07 11:16

MidwestLimey

19-Jul-07 11:16

It's a left over from 1.0 or 1.1, can't remember when they changed it.

I'm largely language agnostic  
     After a while they all bug me  

Re: Adding EventHandler

Luc Pattyn19-Jul-07 11:38

Luc Pattyn

19-Jul-07 11:38

It is only C# 2.0 (hence .NET versions >= 2.0) that support the shorthand notation.

Smile | :)

Luc Pattyn

try { [Search CP Articles] [Search CP Forums] [Forum Guidelines] [My Articles] }
catch { [Google] }

How do applications get permission to create keys hkey_classes_root?

Sepharo19-Jul-07 9:58

Sepharo

19-Jul-07 9:58

How do applications get permission to create keys hkey_classes_root?

Using Registry.ClassesRoot.CreateSubKey(...) I am able to add registry keys, however I wasn't able to until I messed around with the permissions in the registry. But I've installed other applications from the very same account before without changing permissions and those applications were able to add their owns keys to classes_root.

So the question is how do they do that? What code do I need to add to be able to let my program write to classes_root without the user who installs the program having full access?

Creating Tools > Options window

student_rhr19-Jul-07 9:47

student_rhr

19-Jul-07 9:47

I am strugling with creating an Options Window (like how you go to Tools > Options and a window pops up with options in it).

Does any one know of a way to create this type of windows? Any Ideas, link to an article / white paper etc will be highly appreciated.

Thanks.

Re: Creating Tools > Options window

Paul Conrad19-Jul-07 10:41

Paul Conrad

19-Jul-07 10:41

Just create a new form with the options, and from your main form button/menu item click/whatever, call it up. Nothing much really to it.

"Any sort of work in VB6 is bound to provide several WTF moments." - Christian Graus

Re: Creating Tools > Options window

BoneSoft19-Jul-07 10:45

BoneSoft

19-Jul-07 10:45

The window's not hard, you do that like any other window. What you need to decide is what all you will show, how you will store choices, and how the rest of you app reads and responds to those choices. I assume that's what you're talking about.

I don't know of an article specificly dealing with that, though many may have something like that built into articles about other topics.

Personally, I'd use XML serialization: decide what options to offer, build an XML structure to house them, make your options form address those options, read your config, and write to it. Then I'd probably have the host form show it as a dialog [optwin.ShowDialog()], and make it expose your XML serializable config object as a property so that the host can get the options directly from the options form. And make your host form look for the config on load to initially respond to saved options. But there are a number of things to consider and work out with this. Clear as mud?

Try code model generation tools at BoneSoft.com.

Re: Creating Tools > Options window

student_rhr20-Jul-07 3:16

student_rhr

20-Jul-07 3:16

The window's not hard, you do that like any other window. What you need to decide is what
all you will show, how you will store choices, and how the rest of you app reads and responds to
those choices. I assume that's what you're talking about.

Yes I am.

Clear as mud?

pretty much!!

I have the settings for my applications stored in the MyApp.settings file. Would that be a bad idea?

Also, when the settings are changed i.e. user has changed some stuff in the options window, the parent form doesn't autmatically apply the changes. For it to apply changes does it have to be "refreshed" or "reloaded"?

Re: Creating Tools > Options window

BoneSoft20-Jul-07 3:42

BoneSoft

20-Jul-07 3:42

There's nothing wrong with using app.settings.

For the app to take advantage of setting changes, you can have the host form get the settings from the options form before it is disposed, or read them from your app.settings file after the options form is closed.

private void ChangeSettings() {
    MyOptionsForm mof = new MyOptionsForm();
    // show your settings form as a dialog
    // this line will show the form, and get the result when it closes
    // but you still have the mof reference to it, and can access it's
    // public properties.
    if (mof.ShowDialog() == DialogResult.OK) {
        // Make Setting Changes Here
        // Expose setting properties from MyOptionsForm
        // or re-read your settings file here.
    }
}

That help?

Try code model generation tools at BoneSoft.com.

How Search Engine Works

monafr8119-Jul-07 9:14

monafr81

19-Jul-07 9:14

I Need to books and resources about how search engines Work and also resources about text recognition , speech recognition and artificial Intelligent if it possible Smile | :)

Thanks
Mona

LA ELAH ELA ALLAH MOHAMED RASOL ALLAH

Re: How Search Engine Works

BoneSoft19-Jul-07 9:17

BoneSoft

19-Jul-07 9:17

And I need another 20k per year. At least you have Google to help you out. Wink | ;)

Try code model generation tools at BoneSoft.com.

Re: How Search Engine Works

Paul Conrad19-Jul-07 9:21

Paul Conrad

19-Jul-07 9:21

BoneSoft wrote:
And I need another 20k per year.

Is that all?

"Any sort of work in VB6 is bound to provide several WTF moments." - Christian Graus

Re: How Search Engine Works

BoneSoft19-Jul-07 10:35

BoneSoft

19-Jul-07 10:35

It'd keep me happy for a while.

Try code model generation tools at BoneSoft.com.

Re: How Search Engine Works

Paul Conrad19-Jul-07 10:39

Paul Conrad

19-Jul-07 10:39

BoneSoft wrote:
It'd keep me happy for a while.

Same here.

BoneSoft wrote:
Try code model generation tools at BoneSoft.com

I will go and take a look Big Grin | :-D

"Any sort of work in VB6 is bound to provide several WTF moments." - Christian Graus

Re: How Search Engine Works

BoneSoft19-Jul-07 10:51

BoneSoft

19-Jul-07 10:51

Lemme know what you think. Basically an entity code generator that builds from sample XML, XSD, my little language, or database.

Try code model generation tools at BoneSoft.com.

Re: How Search Engine Works

Luc Pattyn19-Jul-07 9:22

Luc Pattyn

19-Jul-07 9:22

Dont worry, you will make 20k before he has read half of what Google will throw at him...

Luc Pattyn

try { [Search CP Articles] [Search CP Forums] [Forum Guidelines] [My Articles] }
catch { [Google] }

Re: How Search Engine Works

monafr8119-Jul-07 9:26

monafr81

19-Jul-07 9:26

Sorry If I asked a bout a lot of things but i realy need a lot of information about these topics Hmmm | :|

thanks any way
Mona

LA ELAH ELA ALLAH MOHAMED RASOL ALLAH

Re: How Search Engine Works

Larantz19-Jul-07 9:32

Larantz

19-Jul-07 9:32

Hi Mona.

The things you ask for are so specific that you'd be guarantieed to get hits if you search for your topics on google.

Try searching for words like 'tutorial' or 'guide' combined with 'speech recognition', 'artificial intelligence', 'neural networks' etc.

Though 'artificial intelligence' spells ph.d to me Wink | ;)

Best of luck and happy hunting!

-Larantz-

for those about to code, we salute you
http://www.tellus-software.com

Re: How Search Engine Works

monafr8119-Jul-07 9:36

monafr81

19-Jul-07 9:36

Thanks Larantz Smile | :)

LA ELAH ELA ALLAH MOHAMED RASOL ALLAH

Re: How Search Engine Works

BoneSoft19-Jul-07 10:37

BoneSoft

19-Jul-07 10:37

They are all very large, broad, complicated topics. I'd start with google. And Goooooooood luck.

Try code model generation tools at BoneSoft.com.

Re: How Search Engine Works

Vasudevan Deepak Kumar19-Jul-07 18:41

Vasudevan Deepak Kumar

19-Jul-07 18:41

BoneSoft wrote:
20k per year

Looks like that you are giving the service as some promotional offer or a lucrative market-capture campaign.

Anyway, good if the joker understands the need of doing his preliminary homework prior to throwing open the question at a messageboard. Smile | :)

Vasudevan Deepak Kumar
Personal Homepage
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