WebBrowser Control - Possible To Disable Image Loading?
Sep 6, 2007
Is it possible to disable image loading on the webBrowser control? - So that pages load faster. I just want the HTML of the page to work with in my code - I don't wish for the page to be displayed. And I know that using httpwebrequest or webclient would normally be the best option for this kind of thing but I need to browse secure https pages and I don't know if that's possible with anything other than the webBrowser control.
I have been googled for couple of hours but couldn't find a solution
I m doing a touch screen interface, to browser a page I used a webbrowser control, and in order to get ride of the ugly scrollbar, i m trying to use mousedown and mousemove event on the webbrowser to move the page around, it worked but when i m doing it, it select and highlight the content on the web too, how can i stop that?
do I need to create a extended webbrowser control by Inherits the orginal one?
How can I stop users from clicking into a webbrowser until the webpage has completely finished loading ?Until the webbrowser DocumentCompleted event has completed users should be able to see the page but not click into the control.
I have been googling for hours and trying to figure this out, and I just can't.I have 1 webbrowser control on a form, webbrowser1. Once I load a page, say google.com, if I use webbrowser1.refresh() or webbrowser1.navigate("google.com"), it's not reloading the page, it has it cached so it's just reloading the cache. This is terribly apparent especially on pages like forums or craigslist.
I want to speed up loading of pages, as i dont need my webbrowser control visible, nor in direct user i/o use, so i thought i'd disable image loading, and/or css only for that application. Obviously i came here coz i dont know how would i do it btw. does anyone know how to disable right click on webbrowser control?
I'm using the WebBrowser control to automate some things in the background of my application but I'm getting this popup. How can I disable these popups in the webbrowser?
How do you disable the Security Alert?I'm using the WebBrowser Control to open office documents and everytime I navigate to the files location and when use the right mouse button or try to open a document
I get a Security Alert Form that ask, You should only run files that come from websites that you trust.
Disable the WebBrowser control context menu visual studio 2008.somebody said: place the following code in your form load method on a form with a WebBrowser control:[code]
I am using web browser control in one of my forms for displaying html files (local files). Before I load the next file I want to clear the webbrowser control of the previous page. I am trying the following method which I found while searching the net.
private Sub ClearWebBrowser(ByVal wb As WebBrowser) Dim tempDoc As IHTMLDocument2 = CType(wb.Document.DomDocument, IHTMLDocument2) tempDoc.write("") tempDoc.close() End Sub
I have added the reference for mshtml namespace in com tab. When trying to run the program, error is thrown like "Type 'IHTMLDocument2' is not defined. (BC30002)".
WebBrowser Example.zip IntroductionBecause the WebBrowser control that we use in .NET is a COM control, not all of its uses are straightforward and some of them (even those which seem like they should be easy) require that we dip into our Interop toolbox in order to properly implement them.
A perfect example of this is loading HTML content into the WebBrowser from memory, rather than a file or a URL. Anyone who's ever used the WebBrowser control before is familiar with the Navigate2 method, which tells the control to load content from a URL (or path to a file). Loading HTML content from memory, however, is a rather elusive practice because of the many steps involved in making it work.
MSHTML.HTMLDocumentYou might notice that the WebBrowser control exposes a "document" property. The object returned by this property can be coerced to the type of "mshtml.HTMLDocument" (you must add a reference to MSHTML to your project in order to make this work) as follows:
Code:Dim clsDocument As mshtml.HTMLDocument = CType(WebBrowser.Document, mshtml.HTMLDocument)
(NOTE: You will have to add a reference to the COM library MSHTML to your project to make this compile)
Once we create an instance of HTMLDocument, a whole new world opens up to us, providing all sorts of DOM access to the content of any given Web page.
If we were to create our own HTMLDocument object from memory, we could use the "write" method to write HTML content to the document from a string variable, like this:
Code:'initialize the document object within the HTMLDocument class... clsDocument.close() clsDocument.open("about:blank")
'write the HTML to the document using the MSHTML "write" method... Dim clsHTML() As Object = {sHTML} m_clsDocument.write(clsHTML) clsHTML= Nothing
WebBrowser Control ImplementationUsing the HTMLDocument returned by the "document" property of the WebBrowser control, however, is not as straight-forward. Because of the way that this object is created and initialized in memory (by the COM WebBrowser control), the "write" method fails when called as above. In order to write content to the HTMLDocument exposed by the WebBrowser control, we must first marshal the string value to a memory space that is compatible with COM. Once the string is properly marshalled, the COM interface IPersistStreamInit (implemented by the HTMLDocument class) must be used to pass the value into the object.
Interop DeclarationsIn order to pull all of this off, we must declare several Interop pieces, including an enumeration, a function, and two interfaces. The declarations for these pieces are as follows:
Is it possible to load HTML content into the HTMLDocument object without having to use the WebBrowser control? I have an html file stored locally that I want to parse in order to find out which checkboxes are on and which are off.
All of the examples I've found use the Webrowser. It just seems convoluted to have to use the WebBrowser in order to get to a DOM object.
I have been tasked to do a project, and have been given a list of links from the client - what the Project needs to do is:1 - open google with a specific search phrase - no problem2 - look on that page for any links containing any member of the list of links, if found, invalidate the entry in the list, and auto-click the link, then go back3 - repeat for any other "finds" on that page4 - when done, auto-click on "Next" (no problem) and go back to step 2For now, I am not even attempting to auto-click the found link and go back, I am just listing all found links in a TextBox. The problem I am having is waiting for the next pages to load before looking for a match in the list of links. I tried using webBrowser.DocumentCompletedto set a Boolean - I tried testing WebBrowserReadyState in the DocumentCompleted event ar the code below gives the best results but it is inconsistent, meaning it completely misses some pages that I know have links on them that match.
I m doing a touch screen interface, to browser a page I used a webbrowser control, and in order to get ride of the ugly scrollbar, i m trying to use mousedown and mousemove event on the webbrowser to move the page around, it worked but when i m doing it, it select and highlight the content on the web too, how can i stop that?
do I need to create a extended webbrowser control by Inherits the orginal one? if so, which event should i capture and override the handler?
I made a web browser using the Visual Basic Language. I am having a problem with the WebBrowser Control.If I go to a website that runs scripts (i.e.; sports.yahoo.com), a message comes up:"An error has occured on this script page", Do you want to continue running Scripts on this page "yes, no". If you click yes or no, the same message appears for 8 more times. Is there anycode I can use to disable the "Script Error Message" from appearing in the WebBrowser Control.
1. Is there any way to disable refreshing in such a way that the button can still be used for stuff like flash on the page still? All my methods have blocked using the button in the flash which is loaded on the page....
2. Is there any way to get the new scrollbars of IE10 or metro style scrollbar or what not into the webbrowser like the desktop version of IE10 does in Windows 8 Consumer Preview?
3. Is there any way to allow the close window called from javascript to be detected & actually close the window in my program?
4. Is there any way to make it so when new window is called it will open a new window with my application in a new instance? stopping me now is it seems to want to open in the same window if I use the event NewWindow to cancel the event from happening but it gets script errors....is there any way to retrieve the link to what it needs to open so I can handle this properly? Or at least tell it what else to use? besides the default browser....I want it to open inside my own program & not IE.
Alright, so I'm still working on my slot machine, and I have it all done, for the most part, just got a quick question. I don't know how to set an image in an imagebox. Here is my lame attempt. I've been pulling my hair out and searching google for about an hour now
I am trying to use my web browser control to get retrieve date from a specific page, including all sub-page content. Problem is some of the sub-pages are on a separate domain and thus I am getting a permission deigned error when i try to access the frame [through document.windows.frames(i).document].Is there any work around to do this, even if I have to manually change security settings? I tried turning all my settings in IE to allow and still same error. I will only be running the app locally and no one will be browsing on IE so I can literally change anything needed to get this to work (even install older version of IE which may allow it but can still handle JS processing).
Note the reason I am using web browser is a great majority of data I will be accessing is JS generated, so I need to access the DOM after JS processed / generated the HTML. Because of this, simply using SOCKETS to get the HTML is really not an option. Even if I had the HTML, I still need some type of engine to process all of the DOM elements based off javascript.
Tried to look for a solution for this problem everywhere and can't seem to find it?I have found solutions related to sub-classing the document, but this method results in a Null Exception as there is no document.
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
AddHandler Me.WebBrowser1.Document.ContextMenuShowing, AddressOf WebContextMenuShowing WebBrowser1.ContextMenu.Dispose() WebBrowser1.ContextMenu.Show(WebBrowser1, pas) End Sub
I want to capture the image of my webbrowser, or actually just a part of it.I already achieved it, but it just takes a screenshot of it instead of capturing the bitmap itself. So when i use this technique and you drag another window above it, the window is also captured. (this is what I don't want.)
My code:
' 1. Get the WebBrowsers bitmap.
Dim bmp As New Bitmap(WebBrowser1.Width, WebBrowser1.Height) Dim BMPEndResult As Bitmap Dim graph As Graphics = Graphics.FromImage(bmp)
[code]....
So I need to get the image of the webbrowser:
- without the scrollbars if possible
- Even if the window is minimized or in the task bar
- Full webbrowser
- and also if possible just a part of it, where I can specify the top, left, width and height
i'm making an app which uses a webbrowser control to show some offline (not cache) html pages like a slide show. let's say pages in a folder on the desktop etc when it came to testing the whole thing, i figured out that the images in the html are not visible on the webbrowser control. instead there is a space where the image should be, corresponding the actual image dimensions.and when i right click on this empty space where images should be, and click on properties, i see the image size given as -1 byte (minus 1 byte) and there is no image type.
however given any online url's to the same webbrowser control or opening the same html pages with the real internet explorer i got no problem and see the images.i've been googling for almost 10 hours for a solution without success, so any hints are welcome. used vb 2008, .net framework 3.5, ie 7.
I'm using this control in a application to load the URL of a .jpg image. The thing is that the image is bigger than the control, so I want it to automatically resize the image, as IE does when the same thing happens there, and it even shows a little magnifier glass to restore the image to full size.How can this be achieved? What happens at default is that the image is bigger than the control, so a quarter of it shows and I have to scroll to see the rest.
I have a window application develpoed in vs 2008, framework 3.5, in which i have put a button.. Now where i click that button the other text boxes are filled up with the data from database thru web service.. what i want is while all text boxes are being filled i want to show an animated loading gif image till data loading is completed in all the text boxes.. i have tried to use image picture box but while data is loading gif image is displyes but in static mode.. cant see animation... i think this is because data loading and animation both are done thru one UI thread..
