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How to call a parent class function from derived class function?
...disambiguate it by adding the base class's name followed by two colons base_class::foo(...). You should note that unlike Java and C#, C++ does not have a keyword for "the base class" (super or base) since C++ supports multiple inheritance which may lead to ambiguity.
class left {
public:
void f...
How to handle dependency injection in a WPF/MVVM application
...needed:
public static class IocKernel
{
private static StandardKernel _kernel;
public static T Get<T>()
{
return _kernel.Get<T>();
}
public static void Initialize(params INinjectModule[] modules)
{
if (_kernel == null)
{
_ker...
Is using a lot of static methods a bad thing?
...:
public static class ResourceLoader
{
public static void Init(string _rootPath) { ... etc. }
public static void GetResource(string _resourceName) { ... etc. }
public static void Quit() { ... etc. }
}
public static class TextureManager
{
private static Dictionary<string, Textur...
trying to animate a constraint in swift
...t tapGesture = UITapGestureRecognizer(target: self, action: #selector(doIt(_:)))
textView.addGestureRecognizer(tapGesture)
}
@objc func doIt(_ sender: UITapGestureRecognizer) {
heightConstraint.constant = heightConstraint.constant == 50 ? 150 : 50
UIView.animate(with...
Wrapping a C library in Python: C, Cython or ctypes?
...gist of it):
from ctypes import *
d2xx = WinDLL('ftd2xx')
OK = 0
INVALID_HANDLE = 1
DEVICE_NOT_FOUND = 2
DEVICE_NOT_OPENED = 3
...
def openEx(serial):
serial = create_string_buffer(serial)
handle = c_int()
if d2xx.FT_OpenEx(serial, OPEN_BY_SERIAL_NUMBER, byref(handle)) == OK:
...
Create a dictionary on a list with grouping
...vert it to a dictionary, as follows:
Dim qry = (From acs In ActualSales _
Group By acs.ProductID Into Group _
Select ProductID, Months = Group.ToDictionary(Function(c) c.Period) _
).ToDictionary(Function(c) c.ProductID)
The resulting query can be used as fo...
Verify version of rabbitmq
...n Windows this is very similar. "C:\Program Files\RabbitMQ Server\rabbitmq_server-3.6.5\sbin\rabbitmqctl status" Folder name may vary with your version of Rabbit.
– dylanT
Nov 10 '16 at 23:58
...
NoClassDefFoundError: android.support.v7.internal.view.menu.MenuBuilder
... those conditions and change the app flow:
public static boolean isSamsung_4_2_2() {
String deviceMan = Build.MANUFACTURER;
String deviceRel = Build.VERSION.RELEASE;
return "samsung".equalsIgnoreCase(deviceMan) && deviceRel.startsWith("4.2.2");
}
Then in the activity's onCreat...
Mongoose subdocuments vs nested schema
...g to the docs, it's exactly the same.
However, using a Schema would add an _id field as well (as long as you don't have that disabled), and presumably uses some more resources for tracking subdocs.
Alternate declaration syntax
New in v3 If you don't need access to the sub-document schema instance,...
“Failed to load platform plugin ”xcb“ ” while launching qt5 app on linux without qt installed
... place as your binary or shared library file. If that works, you may set LD_LIBRARY_PATH (hacky) or, as mentioned in the answer by @bossbarber, QT_QPA_PLATFORM_PLUGIN_PATH.
– csl
Oct 6 '16 at 7:06
...