5
Answers

using WinAPI functions in C#

sakyildiz

sakyildiz

21y
2k
1
I want to get messages posted by a button control using a thread while the program continue the execution of another process.This process should be ended while the user clicks the button.This process is a file reading process.At least process should read the file which is started to be read,but shouldn't read any more files when the button is clicked. I import the user32.dll and I used WinAPI GetMessage function but it didn't work.Can anyone help me? Thanks in advance...
Answers (5)
0
Vulpes

Vulpes

NA 98.3k 1.5m 12y
It depends to what extent the C# 3.0 application made use of features that were introduced in that version of the language. 

If the application made heavy use of these features (notably LINQ), then it will probably be impractical to translate it to C# 2.0 and the only sensible option would be to start again.

Apart from that, a translation should be feasible as C# 3.0 is backwards compatible with C# 2.0.

For a list of the stuff that was introduced in C# 3.0, see here:

http://msdn.microsoft.com/en-us/library/bb308966.aspx 





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0
Vulpes

Vulpes

NA 98.3k 1.5m 12y
You should be able to reuse a lot of it with some simple modifications.

For example:

Implicitly typed variables - just replace 'var' with the actual type.

Lambda expressions - replace with anonymous methods which were introduced in C# 2.0.

Object and collection initializers  - should be simple to rewrite.

However, anything to do with LINQ (to objects, XML or SQL) will need to be rewritten using 'traditional' code  - there's no other way.
0
sean li

sean li

NA 3 2.6k 12y
Hi Vulpes: Thanks for your info. The application (I believe it was coded in 3.0)made use of Implicitly local variables, Lambda expressions, delegate Type, et. It didn't work properly in .NET 2.0 run time. Should we modify or start the scrach in C#2.0?