|
Hi,
if PixelData is a class representing one pixel, are you aware of the fact that this will lead to:
- a huge waste of memory: an object typically has 32 bytes of overhead, so say you are holding 4 bytes of useful information, it will take 36 bytes of memory
- a very slow execution: just enumerating the pixels will take forever, due to a number of indirections in your setup.
IMO the normal approach to this would be:
- either store image information in arrays, say red[], green[], blue[] for the color components of all pixels in the image, or at least in the scanline;
- or use existing classes, such as Bitmap (which internally stores pixel data in an array of structs, each struct holding one byte or red, green, blue, alpha). An array of struct seems most appropriate, since now you can use pointers and don't use unnecessary extra indirections.
Luc Pattyn [Forum Guidelines] [My Articles]
- before you ask a question here, search CodeProject, then Google
- the quality and detail of your question reflects on the effectiveness of the help you are likely to get
- use the code block button (PRE tags) to preserve formatting when showing multi-line code snippets
modified on Sunday, June 12, 2011 9:09 AM
|
|
|
|
|
Hi,
iam developing windows application using c#..
iam Exporting Datagridview data to Excel file it's working properly..
but in one system exporting function is working only one time,if i restart the
system and again it's working for one time..
what's the problem,can anybody please help me ..
but iam running the sample application in another system,there exporting function working N no:of times..(continuously working..)
Thanks in Advance...
murali krishna
|
|
|
|
|
On what basis did you post this ? You surely don't expect help based on this ? How about seeing some code ? How about telling us what's different about that machine that fails ? How about telling us the error message ?
Christian Graus
Driven to the arms of OSX by Vista.
|
|
|
|
|
As Chris said, there are no adequate information in your post.
A little more info would be more helpful.
However check these things.
1. Are you connecting to any shared drives or subst drives which is required by your application. If so are those drives getting mapped once again when the system is restarted.
2. Are you trying to update the same file. If so are you handing this in your code to delete and create the file again or some sort of this.
If these are not feasible to you, we are expecting more info from you regarding the problem.
|
|
|
|
|
Hi all, I need help
I have a IE toolbar menu button: Generate
My flow is
After i click the Generate button, the link on my current website will appear in a:
Form1 > textBoxWebPageURL
Form the Form1.Designer.cs
this.textBoxWebPageURL.Location = new System.Drawing.Point(238, 13);
this.textBoxWebPageURL.Name = "textBoxWebPageURL";
this.textBoxWebPageURL.Size = new System.Drawing.Size(328, 20);
this.textBoxWebPageURL.TabIndex = 5;
this.textBoxWebPageURL.Text = "http://www.codeproject.com"; <-- Whereby i have to hardcode it
How do i make it auto capture the current website that i am browsing and the textbox will display the current website ?
Thank You
|
|
|
|
|
Notsure what you mean by 'the current website I am browsing' - does your form have a WebBrowser control on it? Or are you talking about an independent browser?
If the former, does not the Url property hold the Url of the current page?
___________________________________________
.\\axxx
(That's an 'M')
|
|
|
|
|
The flow is like this
i click on a button <<Generate>> , the last website that i am browsing will appear in my textbox
<< for example i am visiting http://www.codeproject.com >>
I want it to be appear in the textbox after i click << Generate >>
So how can i do it?
Thank you
|
|
|
|
|
You didn't answer his question. I assumed you meant that your code is running inside IE, and you want te currently visible page. Either way, you need to answer if you want help.
Christian Graus
Driven to the arms of OSX by Vista.
|
|
|
|
|
yes
is like read current active IE window's html content
and it will appear into a textbox
Thank You
|
|
|
|
|
I'm almost certain it's not impossible.
I am certain it is complex (especially if you take into account it could not be IE, there could be multiple IE windows or tabs, it could be firefox, chrome etc.)
You could try this page[^]
___________________________________________
.\\axxx
(That's an 'M')
|
|
|
|
|
Thank You
Cause i am doing about
encrypt of html - pdf
So i need to know how to capture the current website to a textbox
thank You
|
|
|
|
|
Hi,
n00b style question time... In my form's CancelButton property, I've set it to btnCancel, which is a button on my form, of course.
In the implementation, if I detect changes, I prompt the user if they're sure about discarding changes, and if they say no, the idea is to leave the form open.
Even though I'm not calling Close(), the form still closes anyway, probably as a result of it being associated w/ the CancelButton property. How can I cancel this behavior so that the screen remains open if they don't want to discard changes?
my btnCancel_Click(..) func is implemented like so:
private void btnCancel_Click(object sender, EventArgs e)
{
if( HasChanges() )
{
if( Yes == MgBox: "You sure 'bout that?") )
this.Close();
else
return;
}
else
this.Close();
}
Thanks!
|
|
|
|
|
CancelButton is for Escape Key, mean whenever you press Escape key that button's click event will called. Even you have focus on other control. Same like AcceptButton property that works on Enter key
for your problem, you should use FormClosing event. Set e.Cancel = true; if you want to form keep open.
TVMU^P[[IGIOQHG^JSH`A#@`RFJ\c^JPL>;"[,*/|+&WLEZGc`AFXc!L
%^]*IRXD#@GKCQ`R\^SF_WcHbORY87֦ʻ6ϣN8ȤBcRAV\Z^&SU~%CSWQ@#2
W_AD`EPABIKRDFVS)EVLQK)JKSQXUFYK[M`UKs*$GwU#(QDXBER@CBN%
Rs0~53%eYrd8mt^7Z6]iTF+(EWfJ9zaK-iTV.C\y<pjxsg-b$f4ia>
--------------------------------------------------------
128 bit encrypted signature, crack if you can
modified on Thursday, March 5, 2009 9:13 PM
|
|
|
|
|
|
Put the checking as part of the form's FormClosing event handler, and change the 'this.close' to e.Cancel = true;
the e.Cancel=true prevents the form's closing.
As well as getting round your problem, it's better put there than in the onclick event of a button, as this would cause issues if, for example, you allow the user to close via a menu option, keyboard short cut etc. in the future.
Also it would generally be better not to put the actual code inside the event handler, but rather put it in a method which is called by teh event handler.
e.g. have a method
private bool OkToClose()
{
if (whateveryourcriteriaare)
{
return true;
}
else
{
return false;
}
}
and in the FormClosing event, use
e.Cancel= OkToClose();
___________________________________________
.\\axxx
(That's an 'M')
|
|
|
|
|
I'll do as you guys suggest.
For the benefit of any who'll read after me, I'll mention to pay attn to the (save/cancel btn).DialogResult property at design time, and to check this.DialogResult in your OkToClose() func, for modal dialogs anyway.
Thanks for the answers!
|
|
|
|
|
how can i change file summery Info such as
Title:-
Author:-
Comments:-
KeyWords:-
etc....
using c#??? any example.....or sample codes 
A S E L A
|
|
|
|
|
hay, how many time do you have to post the same question. Get a clue!
Yusuf
|
|
|
|
|
bcz otherwise no bady get attention to previous quistion once put new every body take a look if they know anything regarding to my QS they will answer....hehehe that y....
by the way....do u know anything about this??
A S E L A
|
|
|
|
|
look, this is free forum. No body is obliged to answer your question. The best way for you to get help is by respecting the rules, otherwise your demise will be near. You will reach a point where no one will even look at your post and you will get no help at all.
Yusuf
|
|
|
|
|
Seems like you want to do some unusual things to safety...
I Love KongFu~
|
|
|
|
|
ahh no its not like that...im doing a project....
i don't know how to use Ednome and DSOFile things....thats y i post this question....but looks like no one help....ahh...nvm ill do this too and post codes to here as usual.....then any body can copy....hehehe....only own hand shadow for own head....that talk realy ture.....hehe....ill post codes soon......
A S E L A
|
|
|
|
|
Well, this is not a common question. In fact, we use version information to store the file's abstract, such as version, company, name, etc.
So far as I know, it is possible to obtain the abstract info, rather than modify it via C#. Maybe you need to look for windows native api to tackle this issue.
I Love KongFu~
|
|
|
|
|
HI. actualy i managed to do that by self..i usind DSOFile.....using summaryProperty.....thats pretty cool way....
A S E L A
|
|
|
|
|
OK, good luck.
I Love KongFu~
|
|
|
|
General 
News 
Suggestion 
Question 
Bug 
Answer 
Joke 
Praise 
Rant 
Admin 
Submit an article or tip
