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How to handle AccessViolationException
...dd thing is that I have wrapped my call in a try catch, which has handlers for AccessViolationException, COMException and everything else, but when Visual Studio (2010) intercepts the AccessViolationException, the debugger breaks on the method call (doc.OCR), and if I step through, it continues to t...
Elegant ways to support equivalence (“equality”) in Python classes
... == n2 # False -- oops
So, Python by default uses the object identifiers for comparison operations:
id(n1) # 140400634555856
id(n2) # 140400634555920
Overriding the __eq__ function seems to solve the problem:
def __eq__(self, other):
"""Overrides the default implementation"""
if isinst...
'ssh-keygen' is not recognized as an internal or external command
..., you will have ssh-keygen.
Update 2015:
ssh-keygen.exe is part of Git For Windows, whose releases include PortableGit-2.4.3.1-2nd-release-candidate-64-bit.7z
c:\path\to\PortableGit-2.4.3.1-2nd-release-candidate-64-bit\usr\bin\ssh-keygen.exe
That means the %PATH% must include c:\path\to\Porta...
How to check 'undefined' value in jQuery
How we can add a check for an undefined variable, like:
11 Answers
11
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What is the difference between up-casting and down-casting with respect to class variable
...se animal's runtime type is Animal, and so when you tell the runtime to perform the cast it sees that animal isn't really a Dog and so throws a ClassCastException.
To call a superclass's method you can do super.method() or by performing the upcast.
To call a subclass's method you have to do a down...
How to use ADB Shell when Multiple Devices are connected? Fails with “error: more than one device an
...
Use the -s option BEFORE the command to specify the device, for example:
adb -s 7f1c864e shell
See also http://developer.android.com/tools/help/adb.html#directingcommands
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How to access maven.build.timestamp for resource filtering
...4 and would like to make the build timestamp accessible to my application. For this, I'm putting a placeholder in a .properties file and let maven filter on build. While this is working fine for ${project.version} , ${maven.build.timestamp} is not substituted on filtering.
...
Git diff says subproject is dirty
I have just run a git diff, and I am getting the following output for all of my approx 10 submodules
9 Answers
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Get value of dynamically chosen class constant in PHP
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$id = constant("ThingIDs::$thing");
http://php.net/manual/en/function.constant.php
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Values of disabled inputs will not be submitted
...sers should not submit the disabled inputs, as they are read-only.
More information (section 17.12.1)
Attribute definitions
disabled [CI] When set for a form control, this Boolean attribute
disables the control for user input. When set, the disabled attribute
has the following effects ...