I have been working on a screen recorder app in Java.
I need to know ho to create a JFrame fully transparent?
Like this.
You can make a JFrame partially transparent using the frame.setOpacity(float opacity) method.
For more information, see the Java Tutorial on the subject.
Caution: If you make if the frame 100% transparent, users won't be able to see it.
Related
I am new in J2SE, I am using Java Swing to create J2SE application. The JFrame can pick and drag at any where on screen but I want to restrict frame to do not reach out from desktop screen.
How to enforce the drag restriction?
Note: The code must work for all type of O.S.(Window, Linux, Mac)
I found help from net but that code is not supportable for all type of O.S.
You will need to know size of the screen , and size of JFrame.
Toolkit.getDefaultToolkit().getScreenSize();
Use thread to scan for location of JFrame on screen. CONSTANTLY / Daemon
Find the location/Position of JFrame in the window
If user gets to corner of the screen, do some math.Set your JFrame ot latest valid location or to center of the screen.
How to set JFrame to appear centered, regardless of monitor resolution?
Bud for the love of sanity , dont do this. Just let user move it where
he wants it.If any software woud do this to me i woud consider it
borderline Malware sincei use multimonitor setup, and this is not
acceptable for me.
I am new to Java, started learning swing and have a problem with resizing a JPanel inside a JFrame. I am following this tutorial:
http://vincentramdhanie.blogspot.com/2009/11/cardlayout-with-netbeans.html
because ultimately I am learning each of the different layouts and have come to the CardLayout now. In the above, there is a JPanel being used for a status panel. That is what I want to do as well, but when I drag a JPanel onto my blank JForm it takes up all the space and I don't see any resizing handles for it like I would if I were using a .NET panel. Changing preferredSize in the properties window also does nothing. What am I missing here? I feel like a complete noob for asking such a basic question but I really can't find any way to resize this thing.. :-|
EDIT:
I forgot to mention; I am using NetBeans IDE
You can't resize the JComponent because you've select CardLayout. The CardLayout can holds/manages one or more components that share the same display space.
What you need to read documentation and good tutorials.
I already designed many JPanel's for my application in Netbeans now i want to ..
Add background images to all jpanel's in which i had some jcomponents already.
And i want it to do it for jdialog too.
I need to design a JMenu with images and menu name.
But already i saw many examples for background images in that they are adding there components through coding im doing it in Netbeans.Is it possible to set it for the main JFrame then i can leave the jpanel's.
If you use netbeans background image can be added using a simple method. I don't know whether it is a good practice, but it is really easy. See this video.
I have a fullscreen JFrame. I added a map to JPanel then added it to JFrame. Now I want to add a transparent window to JFrame. I want to see all map and I want to move transparent window.
I did it with internal frame but I couldn't it's title tranparent.
Could you help me about this?
Thanks ...
One possible way is to add a JPanel to the glasspane.
Does com.sun.awt.AWTUtilities.setWindowOpacity(this, 0.3f); work? (although it's not an officially supported API, natch). Regardless, there's an article on this here.
http://techgearup.wordpress.com/2008/09/19/transparent-jframe-background/
This might help... as a starting point, at least.
If you´r having truble finding it on google it could be because you'll have to google "Translucent"
http://java.sun.com/developer/technicalArticles/GUI/translucent_shaped_windows/
I am loading a JFrame showing the company logo and credits etc before starting the main application. I am having some problems. Fist of all, the size of my new JFrame can never be set. The JFrame looked fine when I previewed it under netBean but came out smaller every time. I tried to do it with a new constructor and setSize(), but still not working. Second, the JFrame has been loaded very slowly. No images and everything could be loaded and the JFrame stays blank for at least five seconds, really kind of annoying. Do it have anything to do with where I put the image files?
Thanks alot.
I am loading a JFrame showing the company logo and credits etc before starting the main application. I am having some problems. Fist of all, the size of my new JFrame can never be set. The JFrame looked fine when I previewed it under netBean but came out smaller every time. I tried to do it with a new constructor and setSize(), but still not working.
It is very difficult to suss out what is wrong without seeing your code, but having said that, your comment about this being a NetBeans-generated GUI suggests that the code will be very large and hard to read and interpret. It is for this and many other reasons that I am not a fan of using NetBeans to generate GUI's, especially for newbies who are just learning how to use Swing. I suggest that you write out your GUI code by hand with some user-friendly layout managers, nested by nesting JPanels if necessary. If you do it this way, you'll have some greater flexibility and control in the construction of your GUI, and you'll also have readable and debuggable code that you can post here for our assessment and help should it not work out right for you.
Second, the JFrame has been loaded very slowly. No images and everything could be loaded and the JFrame stays blank for at least five seconds, really kind of annoying. Do it have anything to do with where I put the image files? Thanks alot.
This sounds like a threading issue. I'd just load the images for the intro GUI first, then show the intro window, and then in a background thread, load any other resources that the program needs.
Having said all this, you probably want to look into using Java's own splash screen as this may do all that you're trying to cobble together on your own. The tutorials can help you with this (please click on link above or here).
Much unclear question description though I want to point some tips...
Do it have anything to do with where I put the image files?
If you mean your JFrame title image so you can use its setIconImage() method
Fist of all, the size of my new JFrame can never be set.
It is quite strange :( because you can always write code like a
JFrame aFrame=new JFrame();
aFrame.setSize(x,y);
... to control your frame scale
Second, the JFrame has been loaded very slowly. No images and
everything could be loaded and the JFrame stays blank for at least
five seconds
It may be caused by single thread overloaded but still to analyze the problem show the main class code or its exceptions stack trace
previewed it under netBean but came out smaller every time
what component do you use to paint your logo? And how do you paint it? Show the snippet
You can set the size by right click on the jFrame and
Set Default size
(netbeans design view)
I hope this is what you want
this may be useful for you?
JPanel aa = new JPanel(new GridBagLayout());
aa.setMaximumSize(new Dimension(500,500));
aa.setMinimumSize(new Dimension(490,490));
aa.setBorder(BorderFactory.createLineBorder(Color.black));
I opened the properties dialog for my JFrame and set "minimum size" field to [500,500] but that did not work.
What did work for me was selecting the "..." button at the right of the "minimum size" property. In the "JFrame Mininumsize" dialog as follows:
set dropdown (Set forms minimum size property using: ) = "Custom Code"
set code in (Form.setMinimumSize( ) ) = "new Dimensiom(500,500)"