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How to check if a process is running via a batch script
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this worked for me nicely (windows XP SP3). IMHO this is the most elegant way of all proposed here, using just the tools shipped with windows
– hello_earth
Jul 8 '10 at 15:30
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How do you run your own code alongside Tkinter's event loop?
...roperly and cleanly close when the [X] button was clicked, this along with win32gui.FindWindow(None, 'window title') did the trick! I'm such a noob ;-)
– JxAxMxIxN
Oct 16 '16 at 14:48
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Why does Math.round(0.49999999999999994) return 1?
...void print(double d) {
System.out.printf("%016x\n", Double.doubleToLongBits(d));
}
public static void main(String args[]) {
double a = 0.5;
double b = 0.49999999999999994;
print(a); // 3fe0000000000000
print(b); // 3fdfffffffffffff
print(a+b); // 3ff00000000000...
PHP random string generator
...itive integer");
}
$pieces = [];
$max = mb_strlen($keyspace, '8bit') - 1;
for ($i = 0; $i < $length; ++$i) {
$pieces []= $keyspace[random_int(0, $max)];
}
return implode('', $pieces);
}
Usage:
$a = random_str(32);
$b = random_str(8, 'abcdefghijklmnopqrstuvwxyz')...
How can I use PowerShell with the Visual Studio Command Prompt?
...\vc\vcvarsall.bat"
Invokes the vcvarsall.bat file to set up a 32-bit dev environment. All
environment variable changes it makes will be propagated to the current
PowerShell session.
.EXAMPLE
C:\PS> Invoke-BatchFile "$env:VS90COMNTOOLS\..\..\vc\vcvarsall.bat" amd64
I...
What is the difference between user and kernel modes in operating systems?
...T instructions.
cannot do IO instructions like in and out, and thus have arbitrary hardware accesses.
Otherwise, for example, file permissions would be useless if any program could directly read from disk.
More precisely thanks to Michael Petch: it is actually possible for the OS to allow IO instr...
“:” (colon) in C struct - what does it mean? [duplicate]
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Those are bit fields. Basically, the number after the colon describes how many bits that field uses. Here is a quote from MSDN describing bit fields:
The constant-expression specifies the width of the field in bits. The
type-spec...
What does “dereferencing” a pointer mean?
...example, if the string literal happened to be at address 0x1000 and p a 32-bit pointer at 0x2000, the memory content would be:
Memory Address (hex) Variable name Contents
1000 'a' == 97 (ASCII)
1001 'b' == 98
1002 ...
ssh “permissions are too open” error
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Using Cygwin in Windows 8.1, there is a command need to be run:
chgrp Users ~/.ssh/id_rsa
Then the solution posted here can be applied, 400 or 600 is OK.
chmod 600 ~/.ssh/id_rsa
Ref: http://vineetgupta.com/blog/cygwin-perm...
Render HTML to PDF in Django site
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Man, reportlab is pita to install on windows 7 64bit, python2.7 64bit. Still trying...
– Andriy Drozdyuk
Jul 14 '11 at 18:33
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