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NSIS学习笔记（持续更新） - C/C++ - 清泛网 - 专注C/C++及内核技术
...les and the stack.
void __declspec(dllexport) myFunction(HWND hwndParent, int string_size,
TCHAR *variables, stack_t **stacktop,
extra_parameters *extra)
{
g_hwndParent = hwndParent;
EXDLL_INIT();
//读取输入参数
WCHAR szComponent[256];
popstring(szComponent);
//打印...
How to create index in Entity Framework 6.2 with code first
...nnotation API. This will allow you to add the Index attribute via a fluent interface.
Here are some examples from the work item from Issues site for EF.
Create a index on a single column:
modelBuilder.Entity<MyEntity>()
.Property(e => e.MyProperty)
.HasColumnAnnotation(
I...
When to use in vs ref vs out
...
True, you cannot access the value prior to an internal assignment. I was referring to the fact that the parameter itself can be used later in the method - it is not locked. Whether this should actually be done or not is a different discussion (on design); I just wanted t...
Catch an exception thrown by an async void method
...decides to execute your method synchronously.
This explanation http://www.interact-sw.co.uk/iangblog/2010/11/01/csharp5-async-exceptions is pretty good - it discusses the steps the compiler takes to achieve this magic.
shar...
How can I resize an image using Java?
...an try:
BufferedImage createResizedCopy(Image originalImage,
int scaledWidth, int scaledHeight,
boolean preserveAlpha)
{
System.out.println("resizing...");
int imageType = preserveAlpha ? BufferedImage.TYPE_INT_RGB : BufferedImage.TYPE_INT_ARGB;
...
How do the post increment (i++) and pre increment (++i) operators work in Java?
... 7; (a=8)
a = 5;
i=a++ + ++a + ++a; =>
i=5 + 7 + 8; (a=8)
The main point is that ++a increments the value and immediately returns it.
a++ also increments the value (in the background) but returns unchanged value of the variable - what looks like it is executed later.
...
Should private helper methods be static if they can be static
...ctually run a test.
class TestBytecodeSize {
private void doSomething(int arg) { }
private static void doSomethingStatic(int arg) { }
public static void main(String[] args) {
// do it twice both ways
doSomethingStatic(0);
doSomethingStatic(0);
TestBytecod...
Can I use Class.newInstance() with constructor arguments?
...st).newInstance(args list);
Edit: according to the comments seems like pointing class and method names is not enough for some users. For more info take a look at the documentation for getting constuctor and invoking it.
sh...
How to programmatically set drawableLeft on Android button?
...tResources().getDrawable(R.drawable.smiley);
txtVw.setCompoundDrawablesWithIntrinsicBounds(img, null, null, null);
or
txtVw.setCompoundDrawablesWithIntrinsicBounds(R.drawable.smiley, 0, 0, 0);
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...
How do I get the time difference between two DateTime objects using C#?
...00);
Console.WriteLine(b.Subtract(a).TotalMinutes);
When executed this prints "30" since there is a 30 minute difference between the date/times.
The result of DateTime.Subtract(DateTime x) is a TimeSpan Object which gives other useful properties.
...