How do I check if the ctrl key is pressed from within a mouseReleased actio

How do I check if the ctrl key is pressed from within a mouseReleased action?
      addMouseListener( new MouseAdapter() {
         public void mouseReleased( final MouseEvent e ) {
           // If ctrl button is held down and mouse is clicked, do something
         }};

Found it, I think
e.isControlDown()

Similar Messages

How do I know if the CTRL button is pressed or not?

I want to let the user hold down CTRL or not, on the keyboard, when they click on a button, how do I detect this?
I don't want to add a listener to it, I only need to check,if it is down or not, when the mouse is clicked on a specific button.
Surely I should be able to check this, like I could a JButton, but just can't find how.

Try this
regards
Stas
import java.awt.event.*;
import java.awt.*;
import javax.swing.*;
public class Test extends JFrame {
public Test() {
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setBounds(50,50,200,200);
this.getContentPane().setLayout(new FlowLayout());
JButton b=new JButton("test");
this.getContentPane().add(b);
b.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
if ((e.getModifiers()&e.CTRL_MASK)==0) {
System.out.println("CTRL isn't pressed");
}//if
else {
System.out.println("CTRL is pressed");
this.show();
public static void main(String[] args) {
new Test();

Help: How Can I turn off a sound bound to the CTRL key?

Hi, I made a small Unity3D game using the CTRL key as the fire button. There I added a sound to the CTRL key. Now all of a sudden that key always makes that sound "on mouse release". No help even after deleting the sound file, clearing the PR Ram, making restarts. OS X Yosemite on my iMac 5k will always make that sound initially only active during the game. Any help appreciated. Thanks Rolf

Problem found - there was a hidden web page open with a similar game that accepted the CTRL key. :-)

Is there a hidden screw or latch under the ctrl key to release the keyboard on the HP ENVY dv6-7250?

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Maybe this will help:
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Kind Regards,
Dragon-Fur

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Reset the page zoom on pages that cause problems: <b>View > Zoom > Reset</b> (Ctrl+0 (zero); Cmd+0 on Mac)
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* http://kb.mozillazine.org/Zoom_text_of_web_pages

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That's the best answer. Yeah usually if you press "fn" or "option" you can get it to work for awhile.
Yeah I have considered some kind of external keyboard also. It will make a laptop less laptopish. But it could do the job for awhile.
It's sad because I don't even care about the "fn" or "option" keys.
But anyway it's not catastrophic at least.
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Anyway thanks for the reply.

How do I change the color of font in a fillable form in Adobe Reader? How can I check if the writer of the document has given permission to edit color and not just add text?

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I had bought a Mac PRE 13 in, in 7th Sep in the online Apple Store,
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There is nothing anyone can do for you on a message board! We are all end users just like yourself.

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Using PL/SQL Block how do you check if the character string value is aA-zZ

I have a pl/sql block that I prompt the user for password and I load the string into an array and interrogate each index(entry) to see if it is "aA-zZ".
How can I check if the value entered is Alpha.
I need to do the same for number and Special character. Please advise. Thanks

Thanks to All of you. The desired solution to verify complex password that enforces desired security policies. An example that I am using is the following:
IF NOT (regexp_like(sz_complex_pw,'[[:digit:]]') AND regexp_like(sz_complex_pw,'[[:alpha:]]') AND regexp_like(sz_complex_pw,'[[:punct:]]') AND regexp_like(sz_complex_pw,'[[:upper:]]'))
THEN
--dbms_output.put_line('Password is not complex...');
RAISE sz_err_pw_complex; -- Complex Password is not compliant
END IF;
DBMS_OUTPUT.PUT_LINE('Complex Password is in Compliance...');
EXCEPTION
This was helpful to me and I trust others will find helpful.
Edited by: yakub21 on Oct 16, 2010 9:05 PM

How do I check if the associated PageItem is there/exists from a XMLElement ?

Hi,
I have the following structure:
Extension Builder 1.5;
InDesign 5.0;
Image (Rectangule Frame);
XML tag associated with the Image.
The following scenario:
I do have an application that checks if this strucuture is available and intact, that is, the user has not deleted the tag (XMLElement) and/or the Rectangule Frame(PageItem);
I do not want loop through allPageItems (the page should have many of them - more than 1000) and get the XMLElement;
So, I loop over the XMLElements and get the associated PageItem through xmlElement.xmlContent property;
The document images properties (image, epss, etc) never are populated (document.epss.length = 0);
I can validate if the tag was deleted or untaged easy.
The problem:
User deletes the Image/Rectangule Frame (PageItem) and keep the xml tag (untag the XMLElement);
The isValid property (xmlElement.isValid = true) is true;
The associated PageItem becomes a Text and is valid as well;
The question:
How do I check if the associated PageItem is there/exists from a XMLElement ?
Regards
Marcos

Found it, I think
e.isControlDown()

How do you check if the input is empty?

Hello,
I am asked to write a program which gets as input in the command line a number of strings, and is to print out the first of these string.
but if the input is empty it must print our an error message.
how do i check if the input is empty?
i guessed
public static void main (String[] args){
if (args == null)
........but thats wrong.
Thanks,
iris

If no arguments were passed, it means that there are zero arguments entered. So the args array will have a length of zero.

How to do CHECK IN the files for the document?

Hi ,
By using BAPI_DOCUMENT_CHECKIN2 Function module I am uploading the Files for the Document number.
My problem is - After uploading the files to the document number the files are not in check in status.
I want the files to be checked in after uploading the from the FM.
Can anyone tell me what I am missing ? How to do check in the files.
I am passing the following values to FM.
      ls_files-SOURCEDATACARRIER = ls_file-DATA_CARRIER.
      ls_files-WSAPPLICATION     = ls_file-application.
      ls_files-DESCRIPTION       = ls_file-file_desc.
      ls_files-STORAGECATEGORY   = ls_file-category.
      ls_files-DOCFILE           = ls_file-doc_path.
      ls_files-CHECKEDIN         = 'X'.
    CALL FUNCTION 'BAPI_DOCUMENT_CHECKIN2'
      EXPORTING
        DOCUMENTTYPE            = ls_file_data-dokar
        DOCUMENTNUMBER          = ls_file_data-doknr
        DOCUMENTPART            = ls_file_data-doktl
        DOCUMENTVERSION         = ls_file_data-dokvr
      IMPORTING
        RETURN                  = ls_return
      TABLES
        DOCUMENTFILES           = lt_files
    COMPONENTS              =
    DOCUMENTSTRUCTURE       =
I appriciate you response on this.
Thanks in advance.

Hi,
Check the values you are passing into ls_files .
you dont need to pass checkedin = 'X'.
and check the storagecategory field - this should not be blnak.
files-SOURCEDATACARRIER = lsfile-DATA_CARRIER.
ls_files-WSAPPLICATION = ls_file-application.
ls_files-DESCRIPTION = ls_file-file_desc.
ls_files-STORAGECATEGORY = ls_file-category.
ls_files-DOCFILE = ls_file-doc_path.
ls_files-CHECKEDIN = 'X'.
This FM will work. No issues just check the values you are psssing into this LS_FILES structure.
Rest of the fields are corect.
Thanks,
Murali.

How to do Check in the files for the document number?

Hi ,
By using BAPI_DOCUMENT_CHECKIN2 Function module I am uploading the Files for the Document number.
My problem is - After uploading the files to the document number the files are not in check in status.
I want the files to be checked in after uploading the from the FM.
Can anyone tell me what I am missing ? How to do check in the files.
I am passing the following values to FM.
      ls_files-SOURCEDATACARRIER = ls_file-DATA_CARRIER.
      ls_files-WSAPPLICATION     = ls_file-application.
      ls_files-DESCRIPTION       = ls_file-file_desc.
      ls_files-STORAGECATEGORY   = ls_file-category.
      ls_files-DOCFILE           = ls_file-doc_path.
      ls_files-CHECKEDIN         = 'X'.
    CALL FUNCTION 'BAPI_DOCUMENT_CHECKIN2'
      EXPORTING
        DOCUMENTTYPE            = ls_file_data-dokar
        DOCUMENTNUMBER          = ls_file_data-doknr
        DOCUMENTPART            = ls_file_data-doktl
        DOCUMENTVERSION         = ls_file_data-dokvr
      IMPORTING
        RETURN                  = ls_return
      TABLES
        DOCUMENTFILES           = lt_files
    COMPONENTS              =
    DOCUMENTSTRUCTURE       =
I appriciate you response on this.
Thanks in advance.

Any answers for this?
Thanks.

How do I check if the ctrl key is pressed from within a mouseReleased actio

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