How To Get Transparency Working In Labels
Jan 6, 2009
I search for a grand total of about four hours online for a method of how to get transparency working in labels in VB.NET 2008. After finding nothing but some example that I have no idea how to implement into my project, I have almost given up. Yes, I've heard about setting the parent properties, but in my case it is imperative that I have labels on top of a PictureBox. (Apparently it's not possible through normal means to have transparent labels over PictureBoxes.)I'm losing my patience with VB.NET, even considering switching back to VB6. How could Microsoft make such a stupid decision? Today I decided to use a stupendous workaround and instead of labels, use transparent PNGs of bitmap text. And guess what? It has the exact same problem as the labels when placed in front of controls! The transparent background has been set to the colour of the form's background!
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May 4, 2011
I'm trying to make a label transparent. When I set the BackColor to transparent, all it does it take the color of the form it's sitting on, i.e. It's not truly transparent. I've googled it and found this in another thread (from a MSFT MVP)".NET controls do not support true transparency. You can set their BackColor to Transparent (in some but not all cases) and the parent control will show through, but only the parent control. If there is some other control behind that is not the parent it will not show through. That's because the control is not truly transparent. It basically copies its parent in the area behind it and uses that as its background, but that doesn't include sibling controls that may be behind it as well." To me, this is completely unacceptable. Why even include the transparency option when all it does is set the control's backcolor to the form color? I'm trying to add a label over a progress bar to give my user some feedback (because the Visual Studio progress bar doesn't support text, which is also a horrible design shortfall by the way), and have yet to find a way around this.
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Jul 20, 2009
The member of this comunity, Keymaf, help-me to do a DLL with PNG files and with any other type of file. But now, there is another problem. The transparency of PNG are not enabled when loaded in my project.
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Aug 24, 2009
my team is working on an application where we have to have one image which is acting as the base of all the elements on the screen.. and this same image has a transparency in the center. now this centre transparency is supposed to display a picture which will be captured from a web cam.currently everything working fine but the only problem which we are facing is that the picture is not proportionate to what is the actual resolution that it was shot at. it has been stretched from the top and bottom. the reason is that the imagebox which has been used to call this webcam display is a aquare.now it seems that the team is not being able to use the exact proportions of the image to call it in the picturebox for a reason that the final image needs to be cropped to fit in a circle.in simple words, i have a rectangular image and i want to draw a circle over this image. whatever is within the circle should be visible, whatever is outside the circle should be transparent. (a mask needs to be created...)but the only thing is that this circle will first display the image/video from the web camera and only once the picture is clicked, it should show the same picture within this circular area.
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Jan 6, 2009
I used a background with dark gray regions as transparent regions for my splash screenOn my development computer, it shows transparent regions, but on all other computers it's opaqueI even tried installing Windows XP in VMware on the development computer, and still it didn't work!
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Oct 2, 2009
My Form closing
[code]...
Note: I tried this with a textbox and it worked. The Textbox text was the labels closing, but when I used this with label, it didnt work.
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Dec 6, 2009
I am making a hangman clone for boredom and I can't seem to make the labels show up properly. Maybe I'm doing this wrong entirely and should just limit what's visible instead.
vb.net
Imports System.IO
Imports System.Text
Public Class Form1
[code]....
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Jul 30, 2009
I have a simple poker game that deals out 9 cards into pictureboxes and shows another 3 pictureboxes that hold cards for the dealer. The code itself does what I want it to...even though I'm at a dead end with writing the code further to evaluate the poker hands. I would simply like to add a few labels and a combobox to my form, but everytime I add something, or try to add it I get cast error?
Public Class Form1
Dim ListOfCards As New List(Of String)
Dim dealtCards As New List(Of String)
[code].....
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Oct 21, 2008
I created a program that has serval labels on a form and a listview object. It has a button that when clicked reads a textfile and loads up values in the listview object. I then can click and drag text from the listview box to any label on the form and then the program removes the value from the listview box. Now, my question is how can I instruct VB to save these values in the text property of the labels so that the next time the program is loaded the labels will contain the values loaded during the last run time session?
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Jun 1, 2012
Well im currently developing an application for public use, I have a login screen in which the user enter's their registered credential's and the progressbar loads by increments of 3, now i placed 6 labels ontop of eachother and where the progressbar coding is i put:
If Progressbar.Value >= 1 Then
Label3.Show()
If Progressbar.Value >= 20 Then
Label3.Hide()
Label4.show()
And so on up until Label8 Show at 100%,
Now the problem is... As i have placed the labels ontop of eachother i need them hidden until they are called to show, i have tried adding a background worker to do this but have had no luck, all i see is the labels overlapping eachother when i run my application when i want them hidden untill Label3.Show() is called, and then to display them as they are called and hide them when another one is called to show...
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Feb 5, 2009
With VB, but I've got the few basics down, file naming, adding objects, naming objetcs, etc. But the reason I'm on here is because I cannot complete even the first step. Our form is 640 X 480, and we need to have two labels, both have vertical scrolls. I know how to add and resize the labels to meet my needs, but I do not know how to create scrolling labels. Or are they text boxes? On our bubble chart (Do you know what that means?) it says lblInformation. We are going to have clickable radio buttons which will update the lblInformation with info about each of the radio buttons.
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Apr 19, 2012
I'm trying to make a program that allows the user to click on labels which have a number in it and then that value has to be stored into a different label.
For example the user click on label1 and the values goes into label12, then it click on label3 and the values goes to label13 and so on.
At the moment I can only code on the respective label underneath (1->12,2->13...) but it has to be in any order (5->12,7->13...)
Here a picture and below my code:
'defining the click order....
Private Sub Label1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Label1.Click
[Code]...
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Feb 18, 2012
When i run my code, the picture box has a background colour, even though I have set the background colour to transparent in the properties window.
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Mar 9, 2010
how can i control swf background transparency in vb.net either with flash.ocx or if there is any other way.so that if i have a swf animation block with red in background and some text written with yellow. now how can i remove that red background in vb.net.actually i want to make a system so that i can choose any color as transparency key for swf like in tv channels logos.
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Jul 20, 2009
how you can get image transparency to come through in Visual Basic? Because if you try to put an image with some transparent sections on it on a form, the transparency turns into the form background colour (Though you could change the background image to whatever you want displayed under the image, but that's not the point) and basically I can't find any way to do irregular transparencies.
Alright, that's not very simple. I'll try to give an example:
You have an animated GIF of...say...fireworks. And it has a transparent background. Now say you have a few labels with text in them. When you draw the picturebox over the labels, the text in the labels is covered by the background of the fireworks, even though it's transparent. You can't see the labels. You want to see the fireworks exploding over the text
I can't see any way of getting around this, other than doing it in another program and putting the text and fireworks into one PictureBox. but it would be so convenient if it could work in Visual Basic, because you can control the text the in the labels and keep the animated "fireworks" exploding at the same time without using multiple animated images.
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Feb 7, 2009
Is it possible to have transparency on a form but not on a button on the form?I know transparency can be controlled for the form in properties (VB 2005), but how can we isolate the button from being affected?
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Jun 29, 2010
Right now I currently have an array of pictureboxes, and over them I want another large picturebox that has a sort of transparent fog effect. I created a png with this and made sure to save the alpha transparency, however when the picturebox shows up, you are not able to see underneath it. Is there anyway to fix this without using the GDI instead of pictureboxes? Because of the way the program is set up, I think GDI would be too slow for my purposes.
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Oct 1, 2010
The 1st problem: I set the transparency key to a color and then set the forms background color to that color, and then set the background image to an image with rounded edges to give my form rounded edged. But the corners look VERY jagged.
The 2nd problem: Is there a way to make a form appear in the lower right corner above the task bar? Kind of like Avasts virus database definition update window.
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Feb 7, 2010
Ive been on the same thing for the past seven hours now. Im trying to ether get the MDI child form title-bar-less in maximized mode, or now, get the transparency working to where the MDI child has transparency. ) This is for a home automation system im working on. major alpha stages. Hardware control works ;) but this stupid GUI is kicking my butt. So three options i have. In maximize mode on the MDI child remove the title bar, or remove the parents scroll bar so i can make the MDI child the size of the parents MDI window, or make the MDI child transparency work. Im posting a screen shot to show you what im talking about.
[Code]...
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Apr 3, 2012
I have a 8 bit Gif, that is transparent, with controls sitting on top of it, all in a custom control. This part works fine. However, This control is a menu ring (appears around another control with a few options). The transparent part is over a Picbox, that is in a panel. The transparent part of the image seems to skip the picbox and go right through to the panel. I set the panel to a back color of RED. The custom control when its placed instead of showing the image in the pic box that it is on top of, it shows the RED panel I have made sure all my Z orders are right.
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Jun 29, 2011
I've been trying to figure out how to create transparency in a sprite, i.e. with the use of a mask. Problem is, every tutorial I could find was either completely irrelevant or for freaking Visual Basic 1858.
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Jun 16, 2010
My problem is when I develop my own applications in Visual Basic 2008/2010 with the Aero interface, I cannot see the text both on the form and in components. After researching on the internet, I have come to a dead end. Is there a way of fixing
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Nov 17, 2011
I'm trying to create a program using Visual Basic .NET 2010 that alters the use of my media keys - Volume up, Volume down, Play, etc. All of the example I have found don't seem to compile quite correctly in 2010. Don't get me wrong they run fine and look exactly as specified but the problem is that the form cannot be edited because it claims the designer code is ill-formatted or something along the lines of that.
Can anybody possibly spare a project or form that has perpixel alpha transperancy?The only thing i want to do is show an overlayed png that has an alpha channel, on the desktop. The form border style will most certainly be "NoBorder"
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Aug 15, 2011
i got a large picture box sent to the back with a default image.i got a few picture boxes set to transparent and they are placed in front of that large picture box. these picture boxes have no images, just set to transparent in the properties.
I use the mousehover event on those picture boxes so when one is hovered over, it will change the image of the large picture box which is behind it.the problem is that even though those picture boxes in front have been set to transparent, when the large picture box behind them loaps a new image due to an event, it doesnt show through those picture boxes which are in front of it!
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May 9, 2011
I have a windows form application where there are several circles that need to be moved around the form at random. I have tried doing this with pictureboxes, as well as ovalshapes.
When I use a picturebox, the corners of the image (which should be transparent) show as the same color of the form, when they should show what is underneath (which could be another circle).
I do not have this problem when I use an ovalshape. However, two of my circles need to have a star on them and I can't seem to figure out a way to do that because I can't get a transparent background. I've tried a transparent background image and a transparent background label and nothing seems to work.
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Jul 20, 2011
I am making an image modifying program and would like to know how (after I have located the .png, .gif, .bmp etc) I can identify the properties of a certain pixel (RGB and the amount of transparency), how to change the colour of a pixel (similar to first part) and how to tell the program to "move along to the next pixel, unless you are at the end of the image, in which case; move down a row and continue" please help. Also, it is a program which converts a greyscale image (black, white and grey) to black, semi-transparent black and transparency). Just in case that helps.
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Jun 16, 2012
i know there is an option for the whole form to be transparent but each control?
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Feb 3, 2011
I have created a toolbar on my form and added icons (.ico or .png) such as New, Open, Save, etc. I can't seem to find out how to make my icons transparent so I don't have the white background displayed on the icons.
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Jun 11, 2011
i need to set the transparency of a bitmap using a trackbar. how can i do this? if i change the value of the trackbar, the image's transparency will change.
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May 2, 2010
I would like to drop a few buttons onto a picture box or a container control that has a background image set.
I would like to have the button's image be an alpha PNG file.
I can manage the mouse over and click such that the button behaves exactly as one does on a web page.
I struggled with it in vb.net 2005 with no luck. If you take a PictureBox and lay it on top of another PictureBox, and set its images to alpha PNG's, and its background to transparent, then the form shows up in the alpha blend, not the other picture box.
And if i accept that i am limited to the background of the form, then it's performance then becomes unacceptable.Since i can Graphics.DrawImage onto a PictureBox's image fast, i assume that the folks at Microsoft must have decided to use the form's background (and slow painting, and not the other controls and the z-order), by design. I cannot for the life of me figure out why they have made that choice.
So my question is this:Does vb.net 2010 support the layering of controls that supports alpha transparency, and can we now create a custom-control with a transparent background?
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