Web Forms :: Create Image (screen Cap) Of Specific A Tags Contents?
May 4, 2010
I am trying to get the pixel color of a mouse click event. (meaning when the user clicks on the page I need to identify what color he just clicked on.) I believe the best way to go about this is to create a screen cap of the browser contents then use image.GetPixel sending the x,y locations. The only part of this that I am having issues with is creating the screen cap at "click-time." It would be easiest for calculations if i could get a screen cap of the entire contents of the browser, but I could also work with being able to screen cap a specific div element by ID.
I have experimented with this using an actual image on the page and i can get the correct values however, the page will not be an image so i need to create the screen cap...
If you have any information about how to do this or have a better way to get the color of the pixel clicked on by a user.
im using Visual Web Developer Express2005 and language: VB
Example Image of my forum thread that im working:
i encircled in color red the part where i assign the 'content' as you can see above.here EXAMPLE of code in my repeater that populate a <td>(inserting data FROM my database) from my TableField('content')
[Code]....
the part that i encircled in the image above was the data on my tableField named--> 'content'.
The idea was to show not the whole content but to show Only some part of it. example is to show only the 1st 300chars or 100 words.
i tried this code which shows the fist 1-100 chars. [Code]....
Problem is the data i stored in the TableField('content') has other html tagsExample my Tablefield('content') has the following data.
<p class="MsoNormal" style="margin: 0in 0in 0pt"><span style="mso-ansi-language: EN-CA"><span style="font-size: x-small">All hands worked in the preparation..............
When i use the code .tostring.tosubstring(1, 100) it shows: <p class="MsoNormal" style="margin: 0in 0in 0pt"><span style="mso-ansi-language: EN-CA"><span style="font-size: x-small">All hands worked in the preparation..................
instead of starting at: All hands worked in the preparation.......Is there a way that i could extract first the html tags then use the .string.tosubstring(1, 100) to make it work.I use the code below temporarily to generate the 'content' as showed in the image above. i limit the height of the lable to 100px which does the trick. but i know its not a good method thats why im trying to look for other methods.
i'm working with the visual studio 2008 , aps.net website and i'm using masterPage , now as i creat a aspx page that bind to the masterPage and drug a contentPlaceHolder to the screen in a specific location now as i drug somthing to the content, tne content gets the shape of the button or whatever and thats it, i can drug more in there but it wont change the shape of the content i also tried to write it in the source by myself between the content tags and its the same problem,
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How can I set the table (or any other html container) so that a 1000px screen only displays what fits on the screen without displaying the scrollbar?In this case, a 1000px would display the middle 800px column, and whatever fits on the sides (half of the 200px images). But the scrollbars would not be displayed, and the images would not be altered so that they fit in the remaining space.
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My problem is that when the page renders, this tag ends up in the which is not where it needs to be. Is there a solution for this?
I had was to check the controller in the Application.spark page and write out which page specific css file is required for that particular controller, however, that solution doesn't seem to scale well and I would imagine there is some way of creating the link in the child page and having it render where it's supposed to by the browser.
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I just want to know how to capture an image using asp.net server side.
My code runs smoothly and captures the image when I'm running it in localhost, but when if I published or deployed it in our web server then access it tru its url, it doesn't work or i can't capture the image.
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