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How to know user has clicked “X” or the “Close” button?

...anted to perform something specific on the FormClosing event, like closing all MdiChildren before closing the MDIContainerForm, or event checking for unsaved changes. Under these circumstances, we don't need, according to me, to differentiate from either buttons. Closing by ALT+F4 will also trigger...
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How do I edit /etc/sudoers from a script?

... Old thread, but what about: echo 'foobar ALL=(ALL:ALL) ALL' | sudo EDITOR='tee -a' visudo share | improve this answer | follow ...
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Are default enum values in C the same for all compilers?

When declaring an enum as shown below, do all C compilers set the default values as x=0 , y=1 , and z=2 on both Linux and Windows systems? ...
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How to trim whitespace from a Bash variable?

... ' echo -e "length(FOO)==${#FOO}" # > length(FOO)==16 How to remove all whitespace (denoted by [:space:] in tr): FOO=' test test test ' FOO_NO_WHITESPACE="$(echo -e "${FOO}" | tr -d '[:space:]')" echo -e "FOO_NO_WHITESPACE='${FOO_NO_WHITESPACE}'" # > FOO_NO_WHITESPACE='testtesttest' echo ...
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GCC -fPIC option

...ll required one more calculation (the function address) for each function call. So performance-wise, if not needed it is better not to use it. – Roee Gavirel Apr 21 at 6:41 ad...
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Limit labels number on Chart.js line chart

I want to display all of the points on my chart from the data I get, but I don't want to display all the labels for them, because then the chart is not very readable. I was looking for it in the docs, but couldn't find any parameter that would limit this. ...
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How to convert a Git shallow clone to a full clone?

Follow-up of this so-question: if I have a shallow clone, how to fetch all older commits to make it a full clone? 6 Answe...
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Is the ternary operator faster than an “if” condition in Java [duplicate]

...one to " if-conditional syndrome " which means I tend to use if conditions all the time. I rarely ever use the ternary operator. For instance: ...
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How to clone an InputStream?

... If all you want to do is read the same information more than once, and the input data is small enough to fit into memory, you can copy the data from your InputStream to a ByteArrayOutputStream. Then you can obtain the associate...
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How can I remove all text after a character in bash?

How can I remove all text after a character, in this case a colon (":"), in bash? Can I remove the colon, too? I have no idea how to. ...