Screenshot after WebBrowser Navigates - C# Discussion Boards

Dave Kreskowiak30-Jul-09 9:35

Dave Kreskowiak

30-Jul-09 9:35

It won't work because none of the Deployment classes are supported by the .NET Compact Framework used by devices.

You're only recourse is to either find a 3rd party library that offer equivilient functionality (I don't know of any) or make your own from scratch.

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2006, 2007, 2008
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Abhishek Sur30-Jul-09 10:15

Abhishek Sur

30-Jul-09 10:15

why not you use Reflection to load the assembly ?? Confused | :confused:

Also mind that, you can only call Deployment dlls from Compact framework.

Abhishek Sur

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Vivek Vijayan30-Jul-09 22:20

Vivek Vijayan

30-Jul-09 22:20

reefleciton??
what is taht
pls explain

This code was posted by me...

Screenshot after WebBrowser Navigates

Abhishek Sur30-Jul-09 23:09

Abhishek Sur

30-Jul-09 23:09

you dont know about Reflection classes ? Confused | :confused:

Even .NET itself reads everything using Reflection, when you take reference to a dll.

System.Reflection.Assembly asm = System.Reflection.Assembly.LoadFile("Path");

Read basics of System.Reflection classes to get the idea. Its very simple. Rose | [Rose]

Abhishek Sur

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VengefulSakhmet30-Jul-09 8:30

VengefulSakhmet

30-Jul-09 8:30

I'm trying to make my program take a screenshot of a webbrowser after it finishes navigating and all I seem to be able to do is take a screenshot of it before it finishes navigating (a white rectangle). It's probably something very simple that I just keep missing, but am getting too annoyed to see it.

I stepped through it and apparently it takes the screenshot when the webBrowserForScreenShot is called after Navigate has been called, but no image is present. However the url is set for the webbrowser to the address it was sent by navigate. I also tried a while loop until webBrowser.ReadyState = complete, but ended up in an infinite loop. I tried adding Application.DoEvents(); as the action in the loop and then end up with a black rectangle. Btw, it does load the page after all is said and done, just too late to be a part of the screenshot. Any help would be great!

public ScreenShotWin()
{
InitializeComponent();
openWebBrowser();
}

public void openWebBrowser()
{
webBrowser1.Navigate("http://google.com");
}

private void webBrowserForScreenShot(object sender, WebBrowserDocumentCompletedEventArgs e)
{
IntPtr htmlWindow = webBrowser1.Handle;
CaptureWindowToFile(htmlWindow, "C:\\Interbank.bmp", ImageFormat.Bmp);
}

this.webBrowser1.DocumentCompleted += new System.Windows.Forms.WebBrowserDocumentCompletedEventHandler(this.webBrowserForScreenShot);

Re: Screenshot after WebBrowser Navigates

0x3c030-Jul-09 9:12

0x3c0

30-Jul-09 9:12

This is because a DocumentComplete event fires once for every frame in the WebBrowser. However, the second event argument has a Url property. If e.Url == webBrowser1.Url, then the control has finished loading the top-level frame; this is usually the browser window.

I got some of this from MSDN forums, here. If the == operator doesn't work, you could also try the Equals method

Between the idea
And the reality
Between the motion
And the act
Falls the Shadow

Re: Screenshot after WebBrowser Navigates

VengefulSakhmet4-Aug-09 5:22

VengefulSakhmet

4-Aug-09 5:22

Actually, the URLs matching is another one of fun parts. When it finishes navigating, the URLs match, the page is still not loaded.

It turned out to be a threading issue. I created a timer after my webbrowser navigated and checked per every 1000 ticks if the readystate was equal to complete. Very annoying, but it works now. A lesson well learned about trusting documentation.

Thank you for your help.

Creating a updater that will download and update installation files

steve_rm30-Jul-09 7:54

steve_rm

30-Jul-09 7:54

Hello,

VS 2008 SP1

I have created a application that I have installed on the user computer. However, I want the application to be self-updating. But I am not sure if this would really update the application.

The application will download all the files from the web server, and replace the files in the directory where the program as been installed to. The user will restart the application.

I am just want to be sure, because I can't replace the installed files with the updated ones. As the application will be running. So really the application cannot delete/replace itself.

So, I was thinking that I could download into another directory, if the program is installed in this directory 'program files/application/1.0.0' then I could download the files to 'program files/application/1.0.1'.

However, when the program restarts, how can it know that it has to execute from the 1.0.1 directory?

I can't use clickonce or the updater block for this.

Many thanks for any advice,

Re: Creating a updater that will download and update installation files

Henry Minute30-Jul-09 8:20

Henry Minute

30-Jul-09 8:20

The first thing to spring to mind is the terrible practice of downloading the new files to a temp folder, then creating a run once on startup shortcut to a small app that copies the new files over the old ones and if necessary deleting the temp folder. Then prompting the user to reboot and doing it for them if they say OK.

But as I said it is a terrible practice, so I hope someone else has a better solution for you.

Henry Minute

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Re: Creating a updater that will download and update installation files

Giorgi Dalakishvili30-Jul-09 8:49

Giorgi Dalakishvili

30-Jul-09 8:49

Here you are: .NET Client Applications: .NET Application Updater Component[^]

Giorgi Dalakishvili

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Adding a Win32 resource file into VC#.NET

alleyes30-Jul-09 7:13

alleyes

30-Jul-09 7:13

I use the following in a console app:

/* Not Visual Studio Resource File **********************************************************/
#ifdef APSTUDIO_INVOKED
#error This file is not editable by Microsoft Visual C++, use a text editor.
#endif

/* Header Files *****************************************************************************/
#include "Interface.h"
#include "Resources.h"

/* Icon Files *******************************************************************************/
IDI_C14_App ICON "Wrench.ico"

/* Version Resource *************************************************************************/
#define VER_FILEVERSION C14ROM_Major, C14ROM_Minor, C14ROM_Ver, C14ROM_Build
#define VER_FILEVERSION_STR C14ROM_Version
#define VER_FILETYPE VFT_APP
#define VER_FILESUBTYPE VFT2_UNKNOWN

#define VER_FILEDESCRIPTION_STR "ROM Initialization Program"
#define VER_INTERNALNAME_STR "C14ROM"
#define VER_ORIGINALFILENAME_STR "C14ROM.exe"
#define VER_PARTNUMBER D5502
#define VER_PARTNUMBER_REV C14ROM_Build

#include "Version.rc"

Is there a way I can incorporate this into a VC# project without having to learn to do this from scratch? I can do small adjustments to the original file, but don't want to start from nothing.

Jer 29:11

Re: Adding a Win32 resource file into VC#.NET

Dave Kreskowiak30-Jul-09 9:30

Dave Kreskowiak

30-Jul-09 9:30

Al_S wrote:
Is there a way I can incorporate this into a VC# project without having to learn to do this from scratch?

Nope. It's not usable in it's current form. This file just sets up macros for the compiler. Whenever the compiler finds "VER_FILEVERSION" in the code, it gets replaced with "C14ROM_Major, C14ROM_Minor, C14ROM_Ver, C14ROM_Build". And so on down the line for each #define. You'd have to write equivilent C# code to do something similar. C# doesn't support macros like C/C++ does.

Oh, there's also an icon resource defined, which is easy enough to add to your project as long as you have the .ico file. You do have the .ico file, correct?

A guide to posting questions on CodeProject[^]

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007, 2008
But no longer in 2009...

Re: Adding a Win32 resource file into VC#.NET

alleyes30-Jul-09 9:43

alleyes

30-Jul-09 9:43

How do I translate this then? Is there a link to a tutorial that shows how to do this in C#? I've never had to do this in C#.NET and Win32 resources were usually done from scratch because they were small enough as shown.

I do have the icon file. That's the least of it

Jer 29:11

Initialize a protocol in a BBS

bigjoe11a30-Jul-09 7:05

bigjoe11a

30-Jul-09 7:05

I just completed a file section on a BBS I just setup and I wanted to add an option to download files from it. From what I have read I need to find out how to Initialize a protocol in a BBS.

I'm trying to use FDSZ and GSZ and I get the same problem, 'No port Detected'

Both programs require a Fossel. x00 or bnu I have tried to use.

After researching this for the last 30 days. I find a lot if note on
the protocols them self's. Just nothing related to Initializing the bbs

Does any one now how to do this.

loading machine names from a txt file...

partialdata30-Jul-09 6:25

30-Jul-09 6:25

I am trying to write a small application for my domain that will delete files on the clients machine.

i have the delete code already also i have wrapped this around impersonation code so i can have admin creds

i am able to open file dialog and choose the txt file i want etc.. but after that im lost. I want to load the machine names i have listed in the machines.txt file and then hit search and it will go out and delete the file i have chosen.

for feed back i have a listview that is setup with grid lines and detail view with 2 columns machine and status

so once i load the machines.txt and i hit search button it will go through each machine name in the txt file go out to that pc remotely delete the file then will populate the listview with machine name and status saying deleted or file not found.

Thank you for your time!

-summey

Abhijit Jana30-Jul-09 8:21

Abhijit Jana

30-Jul-09 8:21

ryan.summey wrote:

i am able to open file dialog and choose the txt file i want etc.. but after that im lost. I want to load the machine names i have listed in the machines.txt file and then hit search and it will go out and delete the file i have chosen.

I didn't get this line. You want to read machine name or you have stored machine name in machines.txt file? Confused | :confused:

Can you please give me some clarification on this Big Grin | :-D

Hope to help you !

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partialdata30-Jul-09 9:00

30-Jul-09 9:00

sorry for the confusion. In my program i have a menu and in that menu is file > open

click open and you can navigate to your machine.txt file or whatever as long as its .txt

once you click it hit ok i want it to load each machine name with in that .txt file

the reason for this is my applicatation deletes a file i have specified in the code. i dont want to do this manually entering in the machine names etc... I would like them to be all loaded then i hit search and it will go out and check each machine remotely delete the file if so show in the listview under status file deleted or file not found then move on to the next machine from the text file.

www.summeylabs.com/images/authplay.jpg

click that link and you can see what im talking about thank for your help.

CoderForEver30-Jul-09 9:08

CoderForEver

30-Jul-09 9:08

Hey dude I think it will be easy if u try a database with 1 table ......... just my suggestion

partialdata30-Jul-09 9:12

30-Jul-09 9:12

I am on a domain is it possible to pull the machine names from Active directory? but my goal is to do this all at once i dont want to have to keep hitting search i want to load the names and hit search and it goes out if it dosnt find it keep moving it it does delete the file then keep moving till the end of the list.

CoderForEver30-Jul-09 9:32

CoderForEver

30-Jul-09 9:32

What if u use the process to get the name of the machine ................... like

<br />
using System.Diagnostics;<br />
Process p=new Process();<br />
String name=p.MachineName;<br />
<br />

then use a database to write to it

partialdata30-Jul-09 9:41

30-Jul-09 9:41

I already know my machine names, i have them all in a machine.txt like this

lap-0101
lap-0102
ash-production

thats just 3 machines i have for testing ill have like 80. Think of it like this its like loading a password file into a password cracking prog.

it reads it line by line so for instance you would click open choose machine.txt then after it loads them all maybe a message box says all names loaded start search ok or cancle then click ok then it gos out to each machine deletes the file i have specified in my code and reports back in the listview all this works now if i manually type in the machine name into the text box if you look at this link you will see my application

www.summeylabs.com/images/authplay.jpg

but i am trying to automate the tast by supplying a file with all the names in it already.
i just dont know how to load each name one line at a time make do somthing else then once its done do it all over again untill end of file.