Panels, Background Images And Transparency GUI?
Jan 2, 2011
Has anyone else had this problem in VB.Net (I'm using VS 2008)?Basically I have several panels in a form, and the form has one background image (a gradient) while the panels have a different background image for themselves. Now, when I place a couple of labels and a button in the panels, and set the background of the labels to transparent (so that the background image of the panel is shown as the background of the labels in question) while running the application the form and panels kind of "flash" (a very short and fast white flash, like from a camera) the whole window for a couple of seconds (continuously), after which they do several refreshes of their text and background.
The problem only happens in Vista and Windows 7, XP seems to be not affected. Is this fixable? I thought it may be a problem with my display drivers (as it's not happening in my XP installation), but I saw the same problem happen on a video review of my application at CNET, so I'm guessing I'm doing something wrong with the GUI?
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Feb 28, 2009
My app has scrolling images in the background and a picturebox on top. The image in the picturebox has transparent parts. How can It so that the transparent parts show whatever is belo the picture box, not the form background? I have tried taking screenshots and positioning them as background but this just freezes the app.
Dim ScreenSize As Size = New Size(154, 83)
Dim screenGrab As New Bitmap(154, 83)
Dim blank As New Bitmap(100, 300)
[CODE]...
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Oct 11, 2010
I need transparent panels. I simply set that background color of controls to Transparent - this does not solve the problem, as the transparency simply shows the background color of the form, but does NOT show any controls placed on the form, which is the crux of my problem.Why? Because I'm trying to use this skinning example, which does the skin by creating a user control, and make the panels show the skin's background:[URL] It seems I'm going to have to override the panel and paint it's background manually, but I don't understand how it all works; I've created a new class and overridden the panel, but the painting stuff is way above my head.
In the form's class:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
'Panel1.BackColor = Color.FromArgb(0, 0, 0, 0)
'supposedly a trick to make a gradient background on the form
[code]....
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Oct 29, 2009
How can I make a graphic saved in jpeg format turn into a different jpeg? Also, How can I set an invisible background colour?
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Mar 7, 2012
I've been playing around with Windows 7 taskbar thumbnail previews. I've noticed that some Microsoft applications are able to set thumbnail images which have transparency in background. I've been trying all out and not been able to achieve this.
I've set a picturebox control having PNG with transparency as thumbnail preview, doesnt work. I tried creating a new bitmap and loading from Icon file having transparency and setting it as preview but still doesn't work. It keeps showing the background color of the form window.
This is what Microsoft apps are able to acheive:
[URL]
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Sep 2, 2009
I want to do is blend two images together with a varying amount of transparency using a scroll bar/trackbar. In software I can do it by drawing an image into a picture box and blending another image on top with a varying amount of transparency but it is using gdi which of course is very slow. I would have thought that it should be very easy with fairly basic modern graphics cards but I am so bogged down with examples of how to draw fancy rotating rectangles etc with direct x that I can't see through it all. Should I look at directdraw, direct3d, opengl?
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Jan 20, 2011
can we use images in the resource folder as background images by setting the background image during run-time by coding?
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Jun 6, 2011
I know the propertys transparency key and opacity. It isnt what I am looking for. I need to have my form to have the same Glass Effect the as win7 does while runing under win7 plataform. Like, if i have glass effect in the top I should have it in the background.
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May 8, 2012
I'm trying to make custom ListBox with some graphics. Base is ItemCollection - each item contains Panel, 2x label and 2x picturebox. What each panel have to do:
- Change backcolor on MouseEnter and set color back when MouseLeave occurs.
- On MouseDown(LMB) - Panel stays "selected" - different color.
Problem: I can't access multiple panels at a time(and I need to), just one via sender as in function. Of course, I can do it hacky way, but I want to do it effective and regular. Is ItemCollection the right solution or should I do it just like an array of panels? Also I want them in one "box", ItemCollection is good for it.
Second "problem": I need to make labels "merged" in panels, when i MouseEnter them(labels), background color on that panel sets to my default color. when i MouseClick them(labels), nothing happens (need to "select" parent panel). It can be again fixed with hacky way, just disable labels - but then the colors of labels are unchangeable.
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Apr 27, 2012
How can I create a gradient background for my form and text without using any images and how can I add multiple images in same form background in VB.NET?
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Feb 1, 2009
based on the code that jmcilhinney made this show all images found in the My Pictures Folder..Now, can someone give code on how could this applied with fade effect when changing the images from one to another..
Public Class Form1
Private imageFiles As String() = IO.Directory.GetFiles(My.Computer.FileSystem.SpecialDirectories.MyPictures)
[code].....
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Jul 25, 2010
Im trying to place 63 squire images on my forms background with a keystroke. I need to be able to set the location of each image i have( they are all in my resources) Is there any easy way to do this? Or any way to do this at all? I need them placed on my forms background because i would like to add a second layer of simi-transparent images over top using pictureboxes.
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Jun 4, 2011
When I set the button background image in properties, it looks great. When the button is clicked, the image needs to change. I tried to use an image list like this: btnSample.BackgroundImage = ImlStimuli.Images.Item(0)and I tried loading them from a file. I can get them to read, but the image always turns out blurry or distorted. I've tried all variations of alignment, BackgroundImageLayout like stretch/zoom/centered, and I changed flat style, but nothing has worked. Is there a setting or something that I'm missing in properties?
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Mar 20, 2010
I am using several instances of a panel object I am creating.I would like to be able to draw a diagonal line from the upper right to the lower left corner of some of the instances.I have been able to create the panel with a background image that has a white line on a transparent background, and I can switch it on and off, but I would like the line to have the active text color.How can I make an image object that uses the system palette?
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Jun 28, 2011
I do have the User Control from a previous Visual Basic 6.0 project that allows certain colors to become transparent. But what I'd like to find out is, how can I make a certain color combination transparent using a User Control in Visual Basic 2008 Express?
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Aug 5, 2011
I have a form that scales a background image. The form is painted 30 times a second (using Invalidate so it redraws the whole background image). When the window size is less than half my screen (1366x768), Task Manager reports that the program's CPU usage is 00. If I increase this a few pixels in width, all of a sudden the CPU usage jumps up to 50+. I can get up to about 606000 pixels in the client rectangle before it starts exhibiting this behavior
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Sep 4, 2011
What would be the best and easiest way to change background image in a VB application from images that are preselected by user from any given folder on the hard disk.
So say "Mike" selects some images in D:ImagesNature in the Nature folder we have lets say "20" images. Now the VB app reads this and saves path so next time its open its fetching images from that folder once more. And every few sec lets say 45 sec a new image is loaded for background.
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Jan 4, 2012
is it possible to cycle through background images from my resources for a button by pressing it the button, what's the simplest code to do this?
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Oct 7, 2009
My app allows the user to set a new button on a tabpage, move it and resize it. They will do this over a background image so the buttons line up with images in the background.Without the background image, the buttons move smoothly and quickly. With the image turned on, the buttons want to move sloooowly and they drag. I made up this code just to show the basic function of what I am trying to accomplish.
Code:
Public Class Form1
Public finalshape As Region
[code].....
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Dec 15, 2010
All my paint calls are under OnPaint event of the form. my game is getting laggy so i was wondering if theres a way to paint images asynchronously using a background worker.
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Aug 1, 2008
I'm developing a VB.Net 2008 application which uses background images (in jpg format) in some forms and controls, but this makes the application to use a lot of ram. My question is how to make it to use the less possible.
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Aug 25, 2010
I'm making a program and in which the user can select a background image from their computer, but I have not found a way to save the picture to my.settings or my.resources
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Oct 27, 2010
Don't know how to copy images to resources file on VB and create background change button. I am trying to add my graphics folder to the resources folder in my project but I get some kind of error. That's the easy question. Now, I have a panel container in which I want to show an image that will be change about 5 times when I click on my background change button. What codes do I need to use for this?
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Sep 10, 2010
how can i get custom menu bar like this (office 2010) example:I need to have custom background and custom hover images. I work in Visual Basic 2010?
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Feb 18, 2011
Background of form: black
background of char, bombs and shrooms: transparent
picbox behind char, bombs and shrooms is regular (marioland)
How can i fix it so the transparent parts dont see form as background but marioland as background?
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May 3, 2012
I am using query from a SQLite database as the AutocompleteCustomSource for a ComboBox. Also, I want to load data in separate thread. My LoadData method works fine when called directly, but it fails when it is called from the BackgroundWorker thread. When it is called from the background thread, it throws a Specified cast is not valid exception on the csearch.AutoCompleteCustomSource.Add(hh("Taj")) line. Below is my code:
Sub LoadData()
Dim connetionString As String
Dim cnn As SQLiteConnection
[Code].....
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Jun 4, 2011
The idea is to scan a folder of images and then let the user navigate back and forth through the images using a couple of buttons.The problem is, I can only get it to return a single image, and not the whole lot. It's looks to me as though the images are getting assigned to the same index in the array. [code]
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Oct 3, 2010
What type of connector do i need to actually save the Map data like point of the images (x,y coordinate) into the database . and then retrieve it to show on the page in asp.net and how do i go about doing it.
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Feb 11, 2009
The app i am working on is for creating theme for the iPod touch... It has to deal with LOTS of images (100's potentially) There will be the set of default images, and then the user created replacement images. I started loading all the defaults into a resx file... thinking then I could just pull them out. now that I started setting the default, this sucks! lol the app will do this, on load it will set all the images (variables) to the resx images then when a theme is loaded, it will replace the default with the user image (if the user img exists) otherwise, the default stays. Then the "screen" is drawn to show the user. so, here is just the images to build the wallpaper, dock, and status bar...
[Code]...
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Aug 12, 2010
I was thinking to make an app to save images [or download images] to local hard disk. But to keep it easy, I want this app to create a small picturebox on form to show the thumbnail of downloaded image. Lets say a 5 pictureboxes has to be added with the thumbnails to show the recent downloads. A user can save the location where he wants to save the files on hard disk. A listbox or a dropdown menu will help in categorizing the images, like image1 in friends section, image2 in family section, image3 in others, etc... When the program restarts all the latest 5 thumbnails has to be loaded in pictureboxes and the directory that was chosen. Finally, a button that shows the downloaded images into original image file size one by one or a slide show. Is it possible to make such program?
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