Desktop Showing Through Picture Box On Second Form?
Nov 10, 2011
I'm new to .net programming, but I do have some experience programming. I've used a picture box to make a custom button. It works on the main form, but when I open a dialog form with the same image the transparent areas shows the desktop and not the dialog. Thishappened for images with an alpha channel and also images that used the transparency key. I tried it with a winform instead and the images with an alpha channel worked fine, but the transparency keyed images showed the screen. All
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Aug 20, 2011
When i close one window and open another using showdialog it shows back window or desktop for a while and then open the required one. I want to open directly without showing back window
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Oct 10, 2009
I have created a project that uses a listview associated to an imagelist (LargeImagelist, I have set the size as 100 x 75 and 32 bit depth), that displays information from a database along with an image from the image list. My listview is set to tilemode so that I can control the size of the tiles to get two columns of six. The image list is populated when the form is loaded from all the images in a specific folder, this part is working appropriately as I can get a picturebox working consistently that references an image from the imagelist.
[Code]...
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Oct 5, 2009
How to change the desktop background picture using vb.net"? ie , i want to change my desktop background through my vb.net code?
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Oct 25, 2009
I set the PictureBox1 InitialImage to a BMP image as a:System.Drawing.Bitmap, but its not showing up any ideas?
Do I need additional code to get this simple test working? I am using an embedded picture, I assume? I don't want to call the picture from a path.
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Nov 9, 2011
I am using VB.net in VS2008.I wrote a screensaver that cycles through pictures. When the screensaver exits it sets the desktop background to the last picture loaded using API call SystemParametersInfo(SPI_SETDESKWALLPAPER, 0, sFilePath, SPIF_UPDATEINIFILE Or SPIF_SENDWININICHANGE).The desktop wallpaper refreshes for WinXP and Vista but not Win7.In Win7, if I run the screensaver as an EXE then the desktop background changes when the program ends. If I run it as a screensaver I need click on the desktop and press F5 before the desktop shows the new desktop background (or click and drag with the mouse to show pieces of the new desktop background).I have tried to add delays and even force a refresh by using SHChangeNotify(SHCNE_ASSOCCHANGED, SHCNF_IDLIST, Nothing, Nothing) but with no success.
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Sep 30, 2011
I have a truly huge picture (2500 x 3500 pixels), and I need to click on portions of it and record where I clicked. As I need to be VERY accurate, I'd like to zoom in on the picture (8x or maybe 10x) so I can select the correct pixel more easily. If I put the picture in a PictureBox and expand it to 10x its normal size (25000 x 35000) this breaks. So what I need is some way to display a small part of a picture, greatly expanded (and, of course, to be able to change which part).
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Dec 5, 2011
Public Class Form1
Private Sub PictureBox7_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles PictureBox7.Click
End Sub
Private Sub ShowDigit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ShowDigit.Click
[Code] .....
How would I finish off the code in ShowDigit3 so it shows the correct picture image for any number 0-9 in TenSecs??
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Mar 20, 2010
I would like to make a image in the form representing the icon and a label below it to represent name but is there a easy way to do this.
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Nov 24, 2009
i want to make a a form when i send items in form as like as my desktop
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Oct 18, 2011
i am working on Scrollable form, when i am trying to print this form with PrintForm object its printing only the showing part not all the form this the code which am using. Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click Me.PrintForm1.Print(Me, PowerPacks.Printing.PrintForm.PrintOption.Scrollable) End Sub
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Mar 22, 2011
I have a few problems i need to solve. Firstly, I am looking for a piece of code i can use to display a picture from a bank of pictures. It will work on the basis of generating a random number and loading a picture that corresponds to that number.
i.e. Dim RandNumber As Integer
Dim RandClass As New Random
RandNumber = RandClass.next(1, 10)
If RandNumber = 1 Then
Picturebox1.image = picture1
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Secondly, can I then use subsequent picture boxes to display pictures from the same bank of images, without displaying the same image? Finally, I then need to be able to click the picture or a button beneath the picture to select it as an answer to a question and then the whole process starts again.
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Nov 9, 2010
I fear that there is something obviously wrong with my code, but I have come across a situation where the Form.Load event is not firing when I create and show my form. The form is not subclassed (as I've seen some problems with that in some searches), and I am not getting any errors thrown when I step through the code in the debugger.
I have a break point set on the IDE-created form load function (which does have the Handles MyBase.Load signature suffix) but the breakpoint is never reached and the form does display and work.The form is passed three arguments in the constructor but the IntializeComponent() function is called before anything else is done.
[Code]...
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Dec 2, 2005
I open a form using .showdialog and load some info onto it. I have code that runs on the MyBase.Load event. Basically, I have a Try, Catch, End Try block and if the Catch executes in preparing my information, I want the form to stop loading i.e. give a message and not show at all.
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Oct 31, 2011
Why is my MDIChild form not being displayed in my MDIParent form? I want to click a button on form frmStudyResultsFilter which will then display an MDIContainer form frmCalculatedResults (maximized). When frmCalculatedResults is shown I want a small dialog modal form to be in the center of frmCalculatedResults. For some reason frmCalculatedResults will not show on top. Plus I get this error"Form that is not a top-level form cannot be displayed as a modal dialog box. Remove the form from any parent form before calling ShowDialog." Here is my code:
Public Class frmStudyResultsFilter
Private Sub btnCalculated_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCalculated.Click
Dim frm As New frmCalculatedResults
[code]....
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Jan 19, 2012
am trying to figure out why my 2nd form is not displaying the value i recived in my first form.The code for the first form is:
Private Sub scannerOnCom_DataReceived(ByVal sender As Object, ByVal e As SerialDataReceivedEventArgs)
responceBack = scannerOnCom.ReadLine
[code].....
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Aug 18, 2009
I'm sure I'm doing my login process for my app in a not so perfect way, but as with lots of things, it works. The issue is to make it work I have to use the very unpopular DoEvents thing. I would like my application to show a login screen before loading my main form. Currently I have a login dialog box with a FormOpen boolean property and an authenticated boolean property. If a user logs in successfully, I hide the login form, set formopen to false, and authenticated to true. If they cancel out, then I do the same and just set the authenticated property to false. If authenticated=false then I end the app, else I show the main form via application.run(MainForm)
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Dec 8, 2009
In my application, when the main form loads, it also loads a second form.
This form has it's ShowInTaskBar property set to False, has no control box, and is not movable by the user.
This form is only used to show information about the PC, to the User.
I need a way to make the form pretty much completely inaccessible and appear beneath all windows. When the application loads, the second form loads above other windows and you can Alt+Tab to that form.
I was wondering if there was a way to get it to"set" itself on the desktop and no appear in the application list when you Alt+Tab.
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Jul 25, 2009
i have two forms one is a text editer and the secone one is a big form and i want to save a file form the text editor to the secone form just like on a desktop would.
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Oct 1, 2011
I've spent a while searching around and I can't find a solution to this:I have a transparent, borderless form that displays a clock. I can load this just fine, but I want the clock to be part of the desktop, so it cannot take focus, is behind other applications, and is not hidden with Win+D (similar to applications like RainMeter).
I need the solution to work with VB.Net (I'm using 2010)
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Oct 15, 2009
Is there anyway to "dock" a form to the desktop? I have a "child" form that will display info when the main form loads. This form is not meant for the User to interact with it. When I load the form and other windows are open, it displays over those windows until I minimize and then restore the windows. So I want to be able to dock it to the desktop.
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Feb 18, 2011
I created an app that allows the user to look up pricing and search for items, to help speed up dealing with customer asking for pricing and what not. The form stays atop all windows at the top of the desktop, and is setup, currently, to shrink down (or up in this case) by double clicking on the title bar; I've disabled the minimize and maximize buttons.
How it is setup now is okay, but not as sleek as I want it to be. Is there any way to minimize the form to just the caption bar, like what happens with a command window; it minimizes to the a title bar above the start menu, but I want it to minimize to the top of the screen, almost blending into the title bar of the other open windows. Right now, the form is out of the clients way when minimized, or shrunk up, but it looks kind of lame, with a thin strip of the gray part the form still showing.
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Dec 29, 2009
How to determine whether form is it inside the desktop?
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Jul 25, 2011
I had started a similar thread http:[url].... in May but got side tracked, tried to resurrect it by posting back to it but not getting any response so I am starting anew.I have a .net 2.0, VS2010 application. I have users that occasionaly have the following occur:
Open my application, do some work, leave it open go to another application, excel, IE, Firefox, outlook come back to my application, open a new form My application form opens but instead of it being on top with the focus some other application that was previously opened (the excel, IE, etc.) pops up the user can minimize the offending application and there is my form or go to the taskbar and select my application and there is the form
This post echos my problem: http:[url]....Although my app is a windows form app.The issue arises if I had been checking my email for example in outlook or I may have had IE open for example, so the other aplications on on the desktop not minimized. Both my app and the Outlook(the other application is not important it happens with any open application) are open on the desktop. I finish checking email, I click on my app to bring it to the foreground. I then click on a button that results in opening another form. My "I am working" form pops up. The main app now ready to display the new form closes the"I am working" form, outlook comes to the foreground and I can then see the new form in my app get displayed behind outlook.
The code flow is my app is opened, a midi child is created in the main app window.a double click on a contol causes a background worker to be started. That background worker opens a form that just shows a spinning ajax control with the words "working" in it. Meanwhile the app is busy prepping a form for display.When the form is ready to be displayed the background worker is cancelled which removes the popup form and then the newly constructed form is displayed.
At first I thought this had something to do with the background worker and a different thread being created but that is not the case.I can replace the background worker with a simple popup of a modeless dialog. Of course any work done in the background worker is not done but the modeless dialog will not block the main app. And when the main app closes the modeless dialog I get the same behavior with the last opened desktop app coming to the foreground and I can see my newly created form popup behind it.
I can of course just as soon as return from the call to close the working form give my app focus but that still results in the other desktop app coming to the foreground briefly and then my app coming to the foreground, not really a solution. With that bit of info it seems that my application is for some reason giving up focus between the time the working form is closed and the main app new form pops up.My code is way to big to post and it involves DB reads so it is just not feasible to post it.I tried recreating the scenario in a much smaller project that really did not represent much of the complexity of my application and could not get the issue reproduced.
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Aug 26, 2009
I'm new at the forums but not to .net development. I'm trying to make an application, which stays above the Dektop level but ALWAYS below any opened window. This application cannot be minimized, it has to be visible as a desktop background (just for getting you the main idea). As I was reading, I found that the way to make the form not to minimize is by using the WndProc function, and intercepting the Minimize message. My question is.. which of all the available messages is the correct for this case?.
P.D.3 (And last one I hope): See, the main reason of this application, is to make some kind of an "Active Desktop" function, which is not supported by Windows XP 64-bit. As XP64 doens't come with Active Desktop to use Web Pages as Desktop backgrounds, my idea is to make an application which loads certain web page and put's it on the desktop background.
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Jul 24, 2009
can some one so me an example of how i can make a form to a desktop that will let me save files to the form and duble click the file and it open a program to view that file in,
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Jun 11, 2012
We have a Windows Forms VB.NET application running on Windows Server 2008. Users access this app using Remote desktop.The app displays information in Excel, but Excel opens on the server.Is there a way for the .NET app to launch Excel on the users local desktop?
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Sep 5, 2011
Some of u already know I'm making a 'virtual desktop'- thing.Only one problem. When switching to a new desktop it starts a new instance of my app in that desktop (works) and on the form load event it says process.start("explorer.exe") <- here is the problem. It only shows a window not the actually bar.Also this may be important it shows the window, but when I navigate to explorer.exe 'C:Windowsexplorer.exe' and open it there. The explorer bar does show up.
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Apr 28, 2012
In my vb.net windows form application i want make a button that when a user cliked the button, the Desktop should be showed, (Show Desktop Button) .Consider a form name as form1 and it got a button like "Show desktop", when user clicked, all the application should be minimized and it should show desktop, is there any Code for VB.NET Windows Form application.
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Feb 19, 2010
Is it possible to drag an drop a desktop shortcut to the form and then launch the program from there ? Is so how would this be done ?
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