Vista Live Thumbnail Preview Dwm
Jun 30, 2009
The preview on my program doesn't show how I would like it to, sometimes it's blank or not big enough for the whole screen, and other things.
I have 3 forms, one is of controls, one is a full transparent form that is just the outside edges with a blank middle, and one of is the background. Reason for this is setting background transparency, and the transparency(opacity) of the top bar of the form, so it will be transparent like vista is normally in xp.
I want it to show always the full form live view on the preview and I am not getting it to work with my 3 form as one form type program, but it works as expected with one form only, but I don't want this because I want individually set transparencies.
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Nov 14, 2011
I am trying to get this code to re-size(by a percent) the pdf thumbnail it outputs(which needs to be initially scaled down to 15% of the size of the original pdf document size).Currently, the code only adds the two dimensions as pixels, then renders the image, and draws it into a PictureBox.The code uses Ghostscript as you can see. The problem I am having is getting the dimensions of the PDF file. How can this be done? The code will be posted below:
Imports System.IO
Imports System.Drawing.Imaging
Imports GhostscriptSharp
[code]....
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Mar 11, 2011
Im looking to embed an .exe into my form. An example of what I want to do is the preview area when selecting a screensaver in Windows. It shows a small running preview of the app in the current window. How do I do that in my VB form?
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Mar 8, 2009
I've got this code to thumbnail images
Try
' set delegate
Dim currentCallback As Image.GetThumbnailImageAbort = New Image.GetThumbnailImageAbort(AddressOf ThumbnailCallback)
' get the current image
[code]....
is there a way to do a similar thing for word documents(or any text)? I just want to have a thumbnail of the first page.
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Jan 10, 2012
Can anyone provide some details on a way to have a thumbnail image of a random file appear in a panel on a form? I'm working on a project that requires this functionality when a user clicks on a item in a checkedlistbox. This way users can auto-preview a file. All code that I found applies to actual image files, so I'm getting "Parameter is not valid" errors when attempting to create a bitmap thumbnail of a text file. Would a printpreview control work? [code]
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Aug 25, 2010
I try to create a dual video player with VB 2010.
With that I have 2 forms, 1 main form (with all the controls and it should contain a preview screen of what is being displayed on the second form.
And a second form (with a windows media player component).
Now the main form should have (as told) a preview screen of what is shown on the second screen, I want to know if it is possible to have is as the windows 7 taskbar thumbnail (when preview the mediaplayer).
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Feb 2, 2011
I know this is probably simple but I think I may be phrasing this wrong. I'm trying to make textbox text available as soon as it's entered on a label. The below code is what I used for a click event, which generates the info I want to see(I know a live preview would make a display button redundant, but our teacher requested both). If anyone can just tell me the proper terminology,
Private Sub ButtonDisplay_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ButtonDisplay.Click
'Displays entered info into LabelCardDisplay.text
[code].....
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Jun 1, 2009
I would like to add a window preview function (live or not) to my application. Something like the mouse-over on the vista/7 taskbar. the only thing I have is the hWND to the program's main window.
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Feb 13, 2012
i created this thumbnail with other programming mothod Test Thumbnail.rar but how can i register it in other windows i tried register it with RegAsm but i don't could register it
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May 30, 2009
i compile my form with the below code when i run it on vista work fine without any problem but when i try to run in on XP cant run... that happened with any XP machine.[code]when i run my exe to other Vista machines work fine... but on xp NO.
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Jun 16, 2010
I want to make a database of all the xbox live arcade arcade games on the xbox live marketplace, I need to parse an xml file and add the needed data from the xml node into a datagridview.Here is the xml file i need to use to grab links and other data about the game:
[URL]
Being the noob I am it took me about 6 hours to figure out how xml works and to write some code for what i need to do.
Here is what i came up with:
'for grabbing the name of the update
Public Sub updatename()
Dim xmldoc As New XmlDataDocument()
[code]....
That code works fine.Now when i add another column to the datagridview called "update size" i want to know how to add the grabbed data from another sub i made to the new column.What would the code be for adding the strings for the new sub into the seconds column? the first was, DataGridView1.Rows.Add(str)" . So what would the second be ?Also another question i have is how do i put an image in an imagecolumn by a web link, not a local picture.
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Mar 11, 2010
i want to take print preview of window form and after taking print preview want to take print of form
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Oct 11, 2009
I am been working on an a small app that has a Forms.Webbrowser control that navigates to a Adobe Flash program. I have developed the app on Vista 32bit platform and have had no problems. I have sent the app to a couple of people to test out and one is using Vista 64bit and is running into a problem. I know the webbrowser control just uses the underlying base framework of IE. The problem on the 64 bit machine is when the site is navigated to it says that it needs to have Flash installed. When the user goes to Adobe's site it says they need to use a 32bit browser.
As stated on Adobe site here:[URL] the Flash player need to be in a 32 bit browser. What options do I have to be able fix this problem? Is there another control that I can use that would be the same in a 32bit platform and 64bit platform? Besides navigating to the Flash program, the browser also goes to standard web pages.
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Sep 20, 2009
I have been working on an HTML editor, and I need to know how to make the "Preview" tab show a preview of the HTML code located in the TextBox in the "Code" tab.
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Nov 3, 2010
I want to use the ExtractAssociatedIcon method to get the icon of a bitmap.
But in MSDN I found the following statement:
When ExtractAssociatedIcon is used with bitmaps, a thumbnail image may be returned instead of an icon if the system that is running the application has a registry setting that causes bitmap files to be shown as thumbnail images.
Is it possible to turn off the thumbnail and get the icon back?
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Feb 24, 2011
I have a system where users can upload PDF documents. Rather than displaying the link to these PDFs as a title link, or a PDF icon link, I would like it to be a thumbnail of the first page of the PDF document.
How can I get a thumbnail image of the first (or any specified) page of a PDF document, using ASP.NET 3.5?
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Jun 27, 2011
I'm trying to create thumbnail previews within my program. These would work for any file type, not only images. So videos too. Right now I'm using IExtractImage to do this. It works perfect, but it seems to randomly crash my program when I call .Extract(). There's no error message, my program just crashes. When I run it in the debugger it doesn't break when it crashes. I have it in a try/catch block and that doesn't seem to help. It's not reproducible and doesn't crash on the same file every time. How can I get it working or just prevent it from crashing my whole program?
I'm using the code from this project:[URl]..
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Dec 16, 2011
I managed to use the class ClassWSThumb [URL] in order to get screenshoots from webpages.Here is the class file:
Imports System.Drawing
Imports System.Windows.Forms
Imports System.Threading
Imports System.IO
[code]....
Everything seems to be working perfectly, but i bumped into a situation were i dont know how to handle.If the target website has some ajax information that needs to be loaded after the ready state, i get a screenshoot of the page with no data, because the data was not loaded yet.
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Jul 27, 2009
I have a simple task in DOT NET that is we take a thumbnail an one of the website home page, when we give an URL like in one text box that time control goes to home page of the specified URL and take a picture that home page as a thumbnail and stored in an our specified local disk like we give more than one an up to 100 URLS at a time and stored orderly stored in an our specified local disk
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Sep 20, 2010
ve been exploring with IThumbnailProvider in VB10. The first attempt I made was to handle MKV file thumbnails. I made the library and everything looked OK when I tested it against MS's Thumbnail app that came in the Windows API pack. Then I attempted to implement it on my computer, and every single thumbnail in the OS broke. Not a single thumbnail was generated by the system. So, after a bunch of trying to rescue thumbnails, I reformatted, reinstalled Windows, and got everything back to normal.
Today, I tried again. This time, using BLP files which are often used in Blizzard games (Warcraft III in particular). To avoid the same issue, I threw the compiled result into a Virtual Machine and tested it there, and it looked lovely. After a bit of experimenting and tweaking, I got it exactly as I wanted, cleaned the thumbnail cache, tested it one last time, and then installed it on my actual PC. Bam, all thumbnail generation is broken again.
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Oct 13, 2011
I am in search of a way to access a files thumbnail preview and push it to a picturebox on my form. I have the code below that works for jpg files, however it does not work for say a word document's thubnail. displaying the word documents thumbnail in a picturebox would be great!
Dim myBitmap As New Bitmap("C:Doc1.doc", True)
Dim myThumbnail As Image = myBitmap.GetThumbnailImage(40, 40, myCallback, IntPtr.Zero)
PictureBox1.Image = myThumbnail
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Apr 14, 2010
Is there a way to show videofiles' thumnails in VB application? Ideal situation would be so that the application would recieve videofiles via drag and drop and then show thumbnails from them the same way as you can see a preview thumbnails in Windows file-explorer.
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Feb 20, 2010
I need to grab a thumbnail from a video file. I dont mind if i need to somehow grab it myself.... But I was doing some research and found IExtractImage which grabs the thumbnails out of the thumbs file in the directory... I haven't found any examples on how to use it in vb, only C#
how to use this or another way to get thumbnails from video files?
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Feb 9, 2009
I am writing a Windows Service to act as an internal Web image collector. I can thumbnail Web navigated to webpages using a webBrowser Control. But since a Service will not support a UI based Control like a WebBrowser control I have switched gears using the wrapper WebClient from system.net. So I am looking for a way to capture and thumbnail a Webpage.I can use the following to grab images off a web pager using webClient but cannot figure out how to thumbnail the entire page.
Dim imgBuffer() As Byte Using wclient As New WebClient() imgBuffer = wclient.DownloadData("http:// Webpage/Image") End Using
Using mem As New IO.MemoryStream(imgBuffer) Using img As Image = Image.FromStream(mem) Me.PictureBox1.Image = img.GetThumbnailImage(100, 100, Nothing, IntPtr.Zero) End Using End Using
End Sub
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Aug 20, 2009
Im looking to create a thumbnail from a jpg image. the image is stored in c: empimage.jpg all im trying to do is create a thumbnail from this and save it in c: emp humbimage.jpg. Ive found a number of C# tutorials and some vb.net ones. Apparently this is a really easy thing to do.
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Jan 25, 2008
Having searched long and hard I came up with nothing to solve this problem.It appears that no body could give me any direction on how to default an Open Dialog box to what ever view type I desired.It was after several fruitless hours that I changed my way of thinking and started to look if this had been accomplished in any other language other than VB.that is when I stumbled on some code in C# written by Robert Rohde (German I think the original code can be found at [url]I have rewritten his code to be VB2005 compliant and It works a treat, so for all those (who like me) couldnt find how to complete this very simple yet so difficult to achieve task I present the code put this first section into a class called FileDialogExtender
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Jun 4, 2009
I have a folder in which i have some files. I want to view these files in a form as thumbnails.
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Aug 6, 2009
Is it possible to set the image windows displays when viewing a file created in a VB.NET application? In my case I have files saved that store info on football plays for a play creator program. Can I use the image of that play as what the user will see when he searches through windows explorer?
Let me further explain with an analogy: photo files in windows have their images displayed as the user cycles through them; he chooses which one he wants to doubleclick based on the thumbnail image of the actual photo. I'd like to have a "photo" of the play itself shown instead of what is now just a blank generic grey icon for the play files that I save.
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Apr 16, 2010
If you drag something like a picture in explorer it displays its icon or thumbnail ,can this be achieved in vb.net? ,i have two forms ,form1 is a boarderless form with just a pic box ,now i can drag n drop this to another form with easy. but is thay away to display its thumbnail while dragging said picbox image?
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Feb 23, 2011
I'm developing a software for my community library, so I'm searching for a VisualBasic.Net code to achieve the following objectives...
1. Get a list of all top windows displayed on a computer...?
2. how would I retrieve the images of these windows...?
basically the scope of the project is to be able to monitor client activity on the library's client computer systems such as being able to tell how many windows are currently displayed on a client's computer and if possible retrieve thumbnail images of the windows...since the library is hooked up to the internet, the software intends to block use of file sharing sites, and pornography. It is easy to block unwanted sites with certain software, that is if you know what site to block, sadly the list of malicious sites is growing daily... so visual monitoring is required...
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