C# Discussion Boards - CodeProject

How to insert text to GIF and animate the text ?

ErezRozn6-Apr-09 1:41

6-Apr-09 1:41

Hello

I have the following code which inserts user text into a GIF image:

this.DestinationImage = new Bitmap(this.SourceImage.Width, this.SourceImage.Height, PixelFormat.Format32bppArgb);

using (Graphics graphics = Graphics.FromImage(this.DestinationImage))
{
//Draw the original image.
graphics.DrawImage(this.SourceImage, 0, 0);

//Used to write smooth text.
graphics.TextRenderingHint = TextRenderingHint.AntiAlias;

//Write the title you want.
graphics.DrawString(title, titleFont, titleBrush, left, top, StringFormat.GenericTypographic);
titleFont).Height;
//graphics.DrawString(body, bodyFont, bodyBrush, left, yTop, StringFormat.GenericTypographic);

//Free the resources.
graphics.Dispose();

}

I need to know how to animate the text (ie.- flash it, change its color, etc.)

Re: How to insert text to GIF and animate the text ?

Luc Pattyn6-Apr-09 2:41

Luc Pattyn

6-Apr-09 2:41

Hi,

your code modifies the destination image, so if you save it with DestinationImage.Save() the file would contain both the original image and the text written on top of it; however your code does not show anything, so how could it flash?

if you want to see some animation effects on screen, you should make sure everything gets painted;
one way to do it would be to have a PictureBox that shows the original image, then use its Paint event to draw something on top of it. If you install a Windows.Forms.Timer to periodically invalidate the PB, your Paint handler would be called again and could paint something slightly different to get the animation effects you want.

Smile | :)

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How do i compress a large dataset

Danie de Kock6-Apr-09 1:37

Danie de Kock

6-Apr-09 1:37

Can any one please tell me how to compress a dataset and decompress it without getting a out of memory error.

Thanks in advance! Big Grin | :-D

Re: How do i compress a large dataset

SeMartens6-Apr-09 2:36

SeMartens

6-Apr-09 2:36

Did you do a little research before?

Have a look here:
Compressing Persisted DataSets[^]

It's not a bug, it's a feature!

Check out my CodeProject article Permission-by-aspect.

Me in Softwareland.

Re: How do i compress a large dataset

Danie de Kock6-Apr-09 3:06

Danie de Kock

6-Apr-09 3:06

I don't want to compress the file on the hdd it must be on in the memory

Re: How do i compress a large dataset

SeMartens6-Apr-09 3:27

SeMartens

6-Apr-09 3:27

Then you have to use a MemoryStream instead of a FileStream.

It's not a bug, it's a feature!

Check out my CodeProject article Permission-by-aspect.

Me in Softwareland.

How to catch browser close

dataminers6-Apr-09 1:03

dataminers

6-Apr-09 1:03

How to catch browser close?

I try following script but, it's accept postback events...

<script type="text/javascript">
window.onbeforeunload = function()
{
window.open('Logout.html');
}
</script>

Best Regards...

Re: How to catch browser close

Deresen6-Apr-09 3:55

Deresen

6-Apr-09 3:55

First: this is no javascript forum
Second: search on google for an anwser
Third: here you go:

<head>

<script language="javascript">
<!--
 function LoadMe()
 {
  self.close();
 }
// -->
</script>
</head>
 
<body onload="LoadMe()">
<div align="center">

<a href="javascript:window.close()">Close</a>
 
</div>
</body>

Re: How to catch browser close

dataminers6-Apr-09 4:38

dataminers

6-Apr-09 4:38

My question is "How to catch browser close ?".

It's mean how can I detect press close button on the browser.

Thanks...

Re: How to catch browser close

Deresen6-Apr-09 4:55

Deresen

6-Apr-09 4:55

If your question is 'how can I detect press close button on the browser' you should question that in stead of 'how to catch browser close'.
And maybe I've allready given you the anwser: <body onload="LoadMe()">
I even wrote an implementation for you, but you're probably not interested in that.

Re: How to catch browser close

dataminers6-Apr-09 23:17

dataminers

6-Apr-09 23:17

Thanks for care Deresen.

But I try following script but, it's accept postback events...

<script type="text/javascript">
window.onbeforeunload = function()
{
window.open('Logout.html');
}
</script>

I must be foud diffirentation between browser close and "Postback".

Thanks again...

Generic Collection in C#

Ashwani Dhiman6-Apr-09 0:42

Ashwani Dhiman

6-Apr-09 0:42

What is Generic Collection?
Why we use Generic Collection?

Re: Generic Collection in C#

tom5720076-Apr-09 1:01

tom572007

6-Apr-09 1:01

Generics are like lists.

You can store some defined typed data, and then make a lot of operations like a sort, find an item, remove / add items, extract all items, etc...

Re: Generic Collection in C#

King Julien6-Apr-09 1:03

King Julien

6-Apr-09 1:03

Are you faking some interview?????

Why dont you search it in the google...?????

Is it that hard to find????

There are million sites availing free tutorials on these topics.....

Have a Happy Coding.....

Message Removed

6-Apr-09 3:24

N_tro_P

6-Apr-09 3:24

Message Removed

Re: Generic Collection in C#

Colin Angus Mackay6-Apr-09 4:54

Colin Angus Mackay

6-Apr-09 4:54

Collin Jasnoch wrote:
Generic Collections (Array Lists) existed before non Generic (i.e. Lists).

You seem to have overloaded the word "generic"

The ArrayList is not a Generic object in the OO sense of the word. To remove the ambiguity you may like to call them "general" rather than generic.

Collin Jasnoch wrote:
However you may have a situation where you want to maintain a collection of objects that are not necessarily the same object.

Did you mean "same type of object". I've never found a situation where I would repeatedly store the same object in a list.

*Developer Day Scotland - Free community conference Delegate Registration Open

Message Removed

6-Apr-09 5:04

N_tro_P

6-Apr-09 5:04

Message Removed

Re: Generic Collection in C#

S. Senthil Kumar6-Apr-09 5:14

S. Senthil Kumar

6-Apr-09 5:14

"Generic Collections (Array Lists) existed before non Generic (i.e. Lists)"

Actually, lists (List <T>) are generic and array lists are non-generic. You either got them mixed up, Or you're using the term "generic" to mean "any type". In any case, .NET uses the term to mean parameterized types.

Regards
Senthil [MVP - Visual C#]
_____________________________
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Re: Generic Collection in C#

Colin Angus Mackay6-Apr-09 6:18

Colin Angus Mackay

6-Apr-09 6:18

Collin Jasnoch wrote:
The word generic or general is irrelevant

That is like saying "the word left or right is irrelevant". It isn't irrelevant. Generic has a very specific and well defined meaning in OO languages. If the OP used it in error then don't repeat the error. Use the correct term otherwise the OP will continue to use the word in error and cause more confusion later.

Collin Jasnoch wrote:
FYI you could have a situation where you want to store the same specific object in a list. The list does not keep copies but actual references.

Are you trying to teach me C#? I am well aware of this. I just said I've never found a situation where I would want to do this.

Collin Jasnoch wrote:
This is how you can keep ojects alive so the GC does not hit them.

Adding an object many times to the same list will not affect the way garbage collection works. Just one reference in the list is sufficient for the GC to ignore the object so long as the list itself is referenced.

*Developer Day Scotland - Free community conference Delegate Registration Open

Re: Generic Collection in C#

jschell6-Apr-09 8:24

jschell

6-Apr-09 8:24

Colin Angus Mackay wrote:
Generic has a very specific and well defined meaning in OO languages.

I doubt that. It is rather difficult even to find an authoritative definition of "object oriented language".

But if you do have an authoritative definition then I would for one would like to see it.

App Settings Confusion - Class Library

Jasmine Pomelo6-Apr-09 0:42

Jasmine Pomelo

6-Apr-09 0:42

Hi,

I'm a bit confused about how to use application settings in a C# .NET 2.0 application.

I have one project which is a console app and in that I have an App.config file with a couple of settings in it. My console app can access these settings using ConfigurationManager.AppSettings[<key name>] with no problems.

I've created a separate class library project, added a reference to it in my console application. I added a web service reference in my class library and a file, app.config has been automatically created which stores my web reference. However, in that file, there's no <appsettings> key, only an <applicationsettings> key.

I've tried using the the following syntax to allow my class library code to access the settings specific to the class library.

<setting name="MySetting" serializeAs="String">
<value>MyValue</value>
</setting>

...and...

<add key="MySetting" value="MyValue" />

Neither of these work, and I've just noticed that in my class library, there's also a Settings.settings item under the project Properties. I've tried setting the keys in there and still can't access them from my class library.

Any suggestions?

Re: App Settings Confusion - Class Library

William Ten Broek6-Apr-09 1:15

William Ten Broek

6-Apr-09 1:15

assumming that you have a guid added to your properties use the following

global::ClassLibrary1.Properties.Settings s = new ClassLibrary1.Properties.Settings();
Guid g = s.guid;

Re: App Settings Confusion - Class Library

Jasmine Pomelo6-Apr-09 5:44

Jasmine Pomelo

6-Apr-09 5:44

Thanks for your reply but I couldn't get that to work Frown | :(

I'm only using ints and strings in my config file though.

Open word document in seprate window

amit_836-Apr-09 0:40

amit_83

6-Apr-09 0:40

Hi,
i am opening Multiple word document using c#.but instead of opening
each document in seperate windows, every doc open in single window,
and by minimizing each we can look into the every document.

but i wanted to open every document in seperate document.(means in seprate word file).

Re: Open word document in seprate window

King Julien6-Apr-09 2:10

King Julien

6-Apr-09 2:10

Have a look at this...

I think this may help you....

MSDN Support for SDI [^]

MSDN support for Automation[^]

Have a Happy Coding.....

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