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CALayer with transparent hole in it
I have a simple view (left side of the picture) and i need to create some kind of overlay (right side of the picture) to this view. This overlay should have some opacity, so the view bellow it is still partly visible.
Most importantly this overlay should have a circular hole in the middle of it so i...
Install a .NET windows service without InstallUtil.exe
...Type = System.ServiceProcess.ServiceStartMode.Automatic;
}
}
static void Install(bool undo, string[] args)
{
try
{
Console.WriteLine(undo ? "uninstalling" : "installing");
using (AssemblyInstaller inst = new AssemblyInstaller(typeof(Program).Assembly, args))
{
...
Can you configure log4net in code instead of using a config file?
...ION:1
For anyone who may stumble upon this in the future, here is what I did. I made the static class below:
using log4net;
using log4net.Repository.Hierarchy;
using log4net.Core;
using log4net.Appender;
using log4net.Layout;
namespace Spectrum.Logging
{
public class Logger
{
publ...
Why is it slower to iterate over a small string than a small list?
...hole thing slower! The aim is just to have a longer iteration so the time hides overhead.
>>> python3 -m timeit -s 'import random; iterable = "".join(chr(random.randint(0, 127)) for _ in range(100000))' '[x for x in iterable]'
100 loops, best of 3: 3.12 msec per loop
>>> python3 ...
Dokan虚拟磁盘开发实战 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...Reserved. Don't touch this!
DokanOptions: PDOKAN_OPTIONS;
ProcessId: ULONG; // Process id for the thread that originally requested the I/O operation
IsDirectory: Boolean; // Indicates a directory file
DeleteOnClose: Boolean; // Delete when Cleanup is called
PagingIo: Boolean...
移动前端开发之viewport的深入理解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...这个layout viewport的宽度可以通过 document.documentElement.clientWidth 来获取。
然而，layout viewport 的宽度是大于浏览器可视区域的宽度的，所以我们还需要一个viewport来代表 浏览器可视区域的大小，ppk把这个viewport叫做 visual viewport。...
Scala type programming resources
...unction. Indeed, type-level programming makes heavy use of implicits.
Consider this example (taken from metascala and apocalisp):
sealed trait Nat
sealed trait _0 extends Nat
sealed trait Succ[N <: Nat] extends Nat
Here you have a peano encoding of the natural numbers. That is, you have a typ...
C#对象序列化与反序列化 - 更多技术 - 清泛网 - 专注IT技能提升
....Name = name;
this.Sex = sex;
}
public override string ToString()
{
return "姓名：" + this.Name + "\t性别：" + (this.Sex ? "男" : "女");
}
}
[Serializable] //必须添加序列化特性
public class Programmer : ...
C#对象序列化与反序列化 - 更多技术 - 清泛网 - 专注IT技能提升
....Name = name;
this.Sex = sex;
}
public override string ToString()
{
return "姓名：" + this.Name + "\t性别：" + (this.Sex ? "男" : "女");
}
}
[Serializable] //必须添加序列化特性
public class Programmer : ...
C#对象序列化与反序列化 - 更多技术 - 清泛网 - 专注IT技能提升
....Name = name;
this.Sex = sex;
}
public override string ToString()
{
return "姓名：" + this.Name + "\t性别：" + (this.Sex ? "男" : "女");
}
}
[Serializable] //必须添加序列化特性
public class Programmer : ...