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How do I handle the window close event in Tkinter?
...ol handlers. Here, the term protocol refers to the interaction between the application and the window manager. The most commonly used protocol is called WM_DELETE_WINDOW, and is used to define what happens when the user explicitly closes a window using the window manager.
You can use the protocol m...
How do I capture the output into a variable from an external process in PowerShell?
...d of piping to Out-String:
$cmdOutput = <command> 2>&1 | % { $_.ToString() };
in PS v3+ you can simplify to:
$cmdOutput = <command> 2>&1 | % ToString
(As a bonus, if the output isn't captured, this produces properly interleaved output even when printing to the console.)
Al...
What's the difference between SoftReference and WeakReference in Java?
...mation" somewere, like cached
reflection information about a class, or a wrapper for an object, etc.
Anything that makes no sense to keep after the object it is associated
with is GC-ed. When the weak reference gets cleared, it gets enqueued in a
reference queue that your code polls somewhere, and i...
How to set background color of an Activity to white programmatically?
... agreed. this changes the colour of the window before the root layout is applied, the accepted answer changes the colour of the root element in the activity's layout
– LairdPleng
Oct 2 '13 at 1:46
...
What happens if you static_cast invalid value to enum class?
... to the enumeration type, no value in data[0] can lead to UB for the static_cast.
After CWG 1766 (C++17)
See CWG defect 1766.
The [expr.static.cast]p10 paragraph has been strengthened, so you now can invoke UB if you cast a value that is outside the representable range of an enum to the enum type. ...
Unable to resolve host “” No address associated with hostname
...
My bet is that you forgot to give your app the permission to use the internet. Try adding this to your android manifest:
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE...
How do you mock out the file system in C# for unit testing?
...ers like that:
public class ManageFile {
private readonly IFileSystem _fileSystem;
public ManageFile(IFileSystem fileSystem){
_fileSystem = fileSystem;
}
public bool FileExists(string filePath){}
if(_fileSystem.File.Exists(filePath){
return true;
}
...
You have not concluded your merge (MERGE_HEAD exists)
... I tried and gave me conflict in files(when pull) Auto-merging app/views/layouts/application.html.erb Auto-merging log/development.log CONFLICT (content): Merge conflict in log/development.log Auto-merging log/restclient.log CONFLICT (content): Merge conflict in log/restclient.log Automa...
Spring ApplicationContext - Resource leak: 'context' is never closed
In a spring MVC application, I initialize a variable in one of the service classes using the following approach:
16 Answers...
How to remove a TFS Workspace Mapping?
...n messing with the database, take backups, etc.
The database is called Tfs_<<your_TFS_collection_name>>. Ignore the Tfs_Configuration MSSQL database. I'm not sure but if you don't have a Tfs_<<your_TFS_collection_name>> database, settings might be in the Tfs_DefaultCollectio...