I have a project where I want to place a png on the form like a "Rubber Stamp". I have the transparent *.png but I need it to be transparent on TOP of all the textboxes, labels, etc. Every time that I use a label or picturebox to hold the image, you still see the form background. It's not being brought transparent on top.
Any assistance is appreciated.
Assuming I understood your question right, let's say you have a PictureBox called PictureBox1, and a Label called Label1, and you've placed PictureBox1 in front of Label1, and the PictureBox has a transparent background. In the form's load event:
PictureBox1.Parent = Label1
If this doesn't work, try adding
PictureBox1.BringToFront()
Related
I want to add a .gif image to a picturebox.
I want user to choose image from a variety of images of different pixels.
if I use
picturebox1.image = image.fromfile("E:\ship1")
then there is no option available of imagelayout unlike backgroundimage.
because of different images pixel only half of image is displayed in my picturebox size.
I don't want to change my picturebox size because in the game that i am working on, it can cause problems.
If i use
picturebox.backgroundimage = image.fromfile("E:\ship1")
but then .gif would not show its animation.
Any suggestion for solution apart from changing size of picturebox cause that would be the last thing to do
Maybe I am missing something, but is it the case that when you set a pictureboxes background to transparent, all it really does is set it to the same color as the forms background?
What I am trying to do is draw an animation for the benefit of this, a bouncing ball - which I paint on the form, then overlay that with a picture frame. End result should be a bouncing ball in a picture frame, I should mention that the picture frame does not have a straight edge, so it is not possible to arrange 4 picture boxes in a frame. The ball needs to vanish behind the frame to change color and then magically bounce back out.
I have tried:
1.Setting the picture box background to pink and then key out the same pink, this basically cuts away everything, including that which is behind the picture box
2.Setting the picture box to transparent, this just displays the picture box background as the same color as the forms background.
3.I have tried painting the image in a rectangle, this had the same effect as drawing it in a picture box.
I am not sure what I am doing wrong, I am wondering if there is any other ways I could try or if someone has made a custom control or library that supports transparency?
Try using a Panel with the background image set. This is because; as you said: the transparent option only takes the backcolour of the parent.
After doing some more in depth research I solved this by drawing both the images to the form using PaintEventArgs and me.paint
Making each image transparent using:
Dim TestImage as Bitmap
TestImage.MakeTransparent(<Transparency Color>)
Thank you to both of you for your replies though.
Hmm... If You want to use Picturebox and get a transparent image,
Try to set picturebox's background as your 'Ball' (probably you need an image editor).
and set picturebox transparent. It worked for me (VS Express 2010) once.
I have a panel with the BackgroundImage set that I'm using as a button. The panel also contains a PictureBox with a png image loaded so that parts of the image are transparent and the panel image shows through. On MouseDown I change the panels BackgroundImage, then on MouseUp I change it back again. The problem is that when the panel image changes, the PictureBox flickers badly when redrawing its transparent areas.
I've tried using the DoubleBuffered property of the form its on; no luck there. I've also tried SuspendLayout just before changing the image, refreshing the PictureBox, then ResumeLayout. Still no luck.
Thanks in advance for any ideas.
It's the bad part of VS in graphic. Try using Form BackgroundImage property, or overrides OnPaint event and use Graphics class to draw the image manually (draw on the Form).
Sometimes, I have a picturebox lets say 100x100. But the image it will display is actually 100x400.
I don't want to increase the size of the picturebox itself. Instead, I would like to create a vertical scrollbar (or horizontal if needed).
I could not find a scrollbar in the toolbox, so I guess I have to code it. But, how?
And I still wonder if I didn't make a mistake and didn't see the scrollbar in the toolbox. My apologies then :(
I suppose you could add separate scrollbar controls and sync their Scroll events up with the offset at which the picture in the PictureBox is drawn, but that sounds like actual work. There's a better way.
Add a Panel control to your form, and set its AutoScroll property to "True". This will cause the control to automatically show scrollbars when it contains content that lies outside of its currently visible bounds. The .NET Framework will take care of everything for you under the covers, without you having to write a single line of code.
Drag and drop your PictureBox control inside of the Panel control that you just added. The Panel control will then detect that one of its child controls is larger than its visible area and show scrollbars, thanks to the AutoScroll property. When the user moves the scrollbars, the portion of the image in your PictureBox that is visible will be automatically adjusted. Magic.
(The reason you have to use a Panel control as a container is because PictureBox does not inherit directly from the ScrollableControl base class, which is what provides the AutoScroll property.)
I tried this and it worked well. But I noted that if the picturebox is docked in the panel, the picturebox is automatically set to the size of the parent panel, and can't be set larger (at least not in any way I could find). This defeats the purpose of the technique. So -- put the picturebox on the panel, but don't dock it, and it will work perfectly.
There are no automatic scroll bars on a picture box, but you can add the VScrollBar (and HScrollBar) control to the form and handle the image scrolling manually by redrawing it at a different offset each time the Scroll event is fired.
I have a picture box on my form, which I add a picture to. This picture has a transparent background, but unfortunately, it seems lost in the picture box... I'm guessing that's because the picture box's background colour property is set to grey (the default). I can't see any option for "transparent" though.
Any idea how I can do it?
Depending on what you are trying to accomplish there's several different ways to go about it.
Some examples are -
Make bitmap transparent
Dim bmp As Bitmap = Bitmap.FromFile("test.bmp")
bmp.MakeTransparent(Color.Magenta) ' magenta in bitmap will be transparent
PictureBox1.Image = bmp
Make the picture box transparent
PictureBox1.BackColor = Color.Transparent
If you really need a transparent image I would suggest not using the picturebox and just render a transparent bitmap directly.
If you want the controls behind the PictureBox to show, ie. you want your image displayed with a transparent background, try drawing straight on the form itself.
Back in the days of VB6 we could do this by hooking onto the Form's "Redraw" event or something...
On most controls in VB, in the Backcolor property of the object, there is an option for transparency. This works fine in VB2008, but in VB2005, you must then set it's .parent property to the object behind (well, in my experience anyways.)
Hope this helps,
I know this is an old topic, but I figured I'd post the solution I came up with for anyone looking for a simple solution for Windows Forms. Say you have PictureBox1 and PictureBox2. You want PictureBox2 to overlay on PictureBox1. Make sure your PictureBox1 background is set to transparent. Then, you can programmatically set:
PictureBox2.Parent = PictureBox1
Magic
Transparent an Image, You can also used Adobe Photoshop to Remove White/Black Background (Watch Tutorial How to Create Transparent Background)
or Use this code below,
PictureBox1.BackColor = Color.Transparent
SetStyle(ControlStyles.SupportsTransparentBackColor, True)