I was wondering if I could draw the background of a tabpage in C# transparent like so I can see behind the window itself. I though it would give a cool effect but I don't know if or how I can do it.
You can set the Appearance property of TabControl to Buttons Instead of using BackColor property. That would bring transparent tab page look and cool effect.
VB & C# syntax
TabPage1.BackColor = Color.Transparent
this will show the tabpage1 color as the form color.
Related
I use User Control in panel. When I use white as BackColor of something it becomes transparent automatically even all kind of operation can be done over my app.
What if you try to set BackColor to 'Grey'? does it work?
And could you add screenshoot from User Control properties?
I have an application in which I have used radio button over an image so it seems very bad with white background in radio button.
So is there a way I can remove that white background ?
Only setting the BackColor to Color.Transparent is not enough to get rid of the little border that is around the RadioButton.
What you will need to also do is call the following code for each radio button to ensure that the background does actually go transparent
rbnTest.BackColor = Color.Transparent;
Point pos = this.PointToScreen(rbnTest.Location);
rbnTest.Parent = pibPicture;
rbnTest.Location = pibPicture.PointToClient(pos);
Source (Not a true duplicate, but similar, hence not flaggin as duplicate)
I would recommend refactoring that code into a reusable method so that you do not scatter the code all over your project.
Locate the constructor for your control class. The constructor appears in the control's code file. In C#, the constructor is the method with the same name as the control and with no return value.
Call the SetStyle method of your form in the constructor.
SetStyle(ControlStyles.SupportsTransparentBackColor, true);
add the following line. This will set your control's BackColor to Transparent.
this.BackColor = Color.Transparent;
Note
Windows Forms controls do not support true transparency. The background of a transparent Windows Forms control is painted by its parent.
You can use the RadioButton.BackgroundImage or the RadioButton.BackColor property. Choose the one that suits you best
I have a label named label1. When the user clicks button1, my label becomes invisible:
label1.Visible = false;
What can I do to animate this property (for WinForms)?
You can modify the text colour of the label gradually between your Form's background colour (or transparent if it works) and the final colour.
Actually, WinForms does not support animations like WPF does.
You will have to use a custom solution. For example you can look into using GDI+.
Make a 'image' of the label (Example)
Set the visibility of the label to false.
Use GDI to draw the bitmap using less opacity to simulate the opacity fade.
Question:
How do I scrape what a transparent panel shows into a bitmap?
Background:
I need to make a form that sits on top of everything and blurs part of the screen but doesn't stop the user from interacting with it. Odd... I know.
I created a form and added a panel to it. I then set the set background color of the panel to red. Then set the form's TransparentKey property to red and topmost = True.
So now I have a transparent panel. Cool. I can interact with the app below it. Cool. Now I just need to add the blur. I would like to take what is showing on panel1 and blur it then display on panel2 that sits over the top of panel1. Or at least that is the idea.
Important detail:
DrawToBitmap() just shows the red background.
This is running on XP.
Yes, DrawToBitmap(). But not on the transparent panel, on the one that's underneath it. If that 'panel' isn't actually yours then you have to use Graphics.CopyFromScreen().
Not sure what you intend to do with it, but drawing the blurred image in the transparent panel will make it non-transparent and you cannot interact with the underlying window anymore. Also, don't use Red, you'll get unintended transparency if the underlying window contains any red. Color.Fuchsia is a good choice, it is a fuchsed-up color.
I would like to put a LinkLabel with a transparent background over a TabControl. The tab control has NO tabpage.
As it's not possible to add controls other than TabPages to a TabControl, what I do it add the LinkLabel to the control that contains the TabCOntrol, and then use BringToFront on the LinkLabel. This displays it over the TabControl.
Problem: The LinkLabel displays as transparent (BackColor Property), but instead of showing the TabControl's colour as background, it shows the background colour of it's parent, the control that also contains the TabControl.
From what I understand, this is normal behaviour as a Transparent BackColor means that it'll just take the parent's colour.
Question: Is there any solution to display my LinkLabel with the TabControl's background colour?
Thanks
I may be wrong about this, but I think that if you change the LinkLabel's BackColor property in code (e.g. in your form's Load event, as opposed to just setting it in the designer) to match the color of your TabControl, it will work the way you want it to.
Thanks for your answers. I'm now get what you meant.
Using the tab Control's BackColor won't work, because this property always returns the ColorSystemColors.Control, which is greyish. However, when using visual styles (e.g. XP's default theme), the TabControl's back colour is kind of white. I cannot use white either as the tab control is not pure white, but gradient white...