I have a problem with making forms with transparent background. when I set a color for the BackColor and assign that color to the TransparencyKey property, that back ground will be transparent but my edges will be sharp and the back color around the pictures will not hide and looks like a sharp ugly border. what should I do? How can I fix this?
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I would like to know if it is possible to make the Form transparent without the Border (where the minimize button is and all that) being transparent too? If it is, how can I do it?
Or Without losing transparency for some controls like buttons on form.
First Off, I found this extremely useful page on theme brushes:
http://metro.excastle.com/xaml-system-brushes
So Roughly, on startup for WinRT/XAML I am setting my theme brush for a textbox in a stylesheet:
Foreground = TextBoxDisabledForegroundThemeBrush
Background = TextBoxDisabledBackgroundThemeBrush
Which at run time makes the textbox appear as: white border, transparent background and grey text. Which I was hoping it would make it transparent, white border and white text.
On my Tapped event, I change the textbox to:
Foreground = TextBoxButtonPressedForegroundThemeBrush
Background = TextBoxButtonPressedForegroundThemeBrush
Which is supposed to be black background, white text and white border. Which seems right, but the cursor is back and you cannot see it.
First question is, am I doing this right to change my text color? I want to change the textbox so once it is selected it stays a changed color. I think this is correct. But I am not sure if I should be setting Foreground or maybe a Font Style instead?
Unfortunately you can't change caret color so if you want your TextBox editable - you should keep the background white or otherwise light. Otherwise, controlling the look of your control in its various states is best done using VisualStateManager and that is easiest to manipulate using Blend.
is it possible to set a background color to a transparent image in QML, so that the image will take the theme color as it's baclground color.
thanks...
Put your transparent Image over a coloured Item (like a Rectangle).
You just need to set z property of the Image greater than the Rectangle's one.
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.
Trying to start a game that involve in a lot of .png and animation.
All these .png are already transparent and set to an individual picture box when i overlay one over the other. There "transparency" actually gets the form background color. and not i'm not able to see through the image behind it.
i set the forecolor to transparent in the attribute am i missing something?
*side question... should i make my game in vb.net if it using a lot of images and animations files? (working solo might get my friend to help later)
Example pictures
well, this is a bit old, but check my answer here :
Make Picturebox transparent over other picturebox?