qr code generator api c#

zxing qr code generator sample c#

qr code windows phone 8.1 c#

qr code c# library open source

qrcode.net c# example

zxing qr code writer example c#,
generate qr code with c#,
qr code c# mvc,
create a qr code using c# and asp.net,
qr code c# library open source,
qr code library c#,
com.google.zxing.qrcode c#,
qr code c# codeproject,
qr code generator for c#,
c# qr code library open source,
com.google.zxing.qrcode c#,
qr code c# mvc,
how to create qr code generator in c#,
generate qr code in c#.net,
qr code generator c# codeproject,
create qr code c# asp.net,
qr code generator for c#,
c# qr code generator library,
c# qr code with logo,
qr code c# asp.net,
zxing qr code generator c#,

create qr code in c#,
generate qr code with c#,
qr code asp.net c#,
qr code c# sample,
c# qr code generator with logo,
qrcode.net c# example,
qr code generator api c#,
qr code generator c# mvc,
qr code c# asp.net,
how to generate qr code in asp.net using c#,
qrcode dll c#,
zxing c# qr code example,
zxing create qr code c#,
qr code c# open source,
generate qr code c# .net,
c# qr code generator free,
create qr code using c#,
zxing qr code generator c#,
qr code generator c# open source,
c# create qr code with logo,
qr code in c#,
c# print qr code,
how to create qr code generator in c#,
qr code generator in c# windows application,
qrcode.net c# example,
how to generate qr code in asp net using c#,
zxing.qrcode.qrcodewriter c#,
generate qr code using c#,
qr code generator in c# asp.net,
qr code using c#,
zxing qr code c# example,
qr code generator c# asp.net,
c# qr code generator open source,
zxing qr code generator c#,
qrcoder c# example,
zxing create qr code c#,
qr code zxing c#,
qrcoder c#,
generate qr code c# free,
generate qr code c# mvc,
qr code generator api c#,
qrcoder c# example,
qr code with logo c#,
qr code generator in c# windows application,
qr code generator c# codeproject,
create qr code c#,
generate qr code using asp.net c#,
generate qr code in asp net c#,

As you saw in 3, you can use F# for pure functional programming. However, some issues, most notably I/O, are almost impossible to address without some kind of state change. F# does not require that you program in a stateless fashion. It allows you to use mutable identifiers whose values can change over time. F# also has other constructs that support imperative programming. You ve already seen some in 3. Any example that wrote to the console included a few lines of imperative code alongside functional code. In this chapter, you ll explore these constructs and many others in much more detail. First, you ll look at F# s unit type, a special type that means no value, which enables some aspects of imperative programming. Second, you ll look at some of the ways F# can handle mutable state, or types whose values can change over time. These include mutable identifiers, the ref type, mutable record types, and arrays. Finally, you ll look at using .NET libraries. The topics will include calling static methods, creating objects and working with their members, using special members such as indexers and events, and using the F# |> operator, which is handy when dealing with .NET libraries.

Figure 9-4. A rotation about the z axis When working with 3D rotation, I find it helpful to visualize an axis for my head, where (0, 0, 0) is in my brain somewhere. The x axis points out of my right ear, the y axis points out the top of my head, and the z axis points out of my nose. If I were to rotate my head around the x axis, I would nod my head up and down. Rotating around the y axis would make me turn my head left or right. A rotation around the z axis would make me tilt my head quizzically from side to side. Alternatively, you can use your thumb and first two fingers to point along the positive direction of each axis and physically rotate your hand when you are thinking about rotations.

Any function that does not accept or return values is of type unit, which is similar to the type void in C# and SystemVoid in the CLR To a functional programmer, a function that doesn t accept or return a value might not seem interesting because a function that doesn t accept or return a value doesn t do anything In the imperative paradigm, you know that side effects exist, so even if a function accepts or returns nothing, you know it can still have its uses The unit type is represented as a literal value, or a pair of parentheses (()) This means that whenever you want a function that doesn t take or return a value, you put () in the code: let aFunction() = () In this example, aFunction is a function because you placed parentheses after the identifier, where its parameters would go.

As much as possible, we try to follow the coding conventions that the Visual Studio tool uses when autogenerating code We do this so that we will not be fighting with the tool But, as you may have already discovered, Visual Studio is not always consistent The suggestions in this appendix should help you with a starting point for your XP team s coding conventions Feel free to tailor your conventions to your team s preferences Coding conventions can turn into holy wars if you let them Don t go there Remember that working software is what is important to a customer, not which line has a brace If your team is having a hard time deciding on the coding convention, the coach should have the final word Coding conventions are not of any value if you don t use them Make sure everyone understands the conventions and uses them.

Often in a game you will need to do several transformations to a 3D object. For a tank game you would likely want to translate it to a position in the world and then rotate it to face the direction it is heading. You could transform the tank with both matrices, but it is possible to create a single matrix that has the combined effect by using matrix multiplication. When you multiply a matrix by another, you get a single matrix that does both transformations. Let s test that by multiplying two translation matrices together: >>> translate1 = Matrix44.translation(5, 10, 2) >>> translate2 = Matrix44.translation(-7, 2, 4) >>> print translate1 * translate2