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Closed 9 years ago.
I am trying to catch all messages that receive another program. As I understand I need to use WinApi hooks, specifically WH_MSGFILTER, but I dont know how to install it properly. Can someone show me complete C# program using different WinApi hooks?
Hooks like that require a DLL that can be injected into another process. You cannot write such a DLL in C#, you cannot get the CLR injected. Only the low-level hooks can work, they don't require injection.
Check this project for an alternative. No idea how solid it is btw.
A process hook to another program requires a native dll (except for keyboard and mouse hooks). Can't be done in C#.
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Closed 9 years ago.
I have a DLL library given to me as homework. I was being told the DLL has the capability of raising events. And I will need to be able to handle those events. I am coding in C#.
Can any one please point me to any tutorials online that will serve the purpose.
Atm, all the google results I get is - how to make a DLL or how to use C++ dll in C#; they are not helping me to serve the purpose.
Can anyone help?
Yes, I know how to add a reference and can connect this to my project.
Since you know how to add a reference, all you need is to add the reference to your class with "using [Class Namespace]" and add an event to your event handler.
This link may help you with this part: http://msdn.microsoft.com/en-us/library/ms743596(v=vs.100).aspx
Add a reference to the project by right-click on the reference-folder in your project. Navigate to the dll and add it. Now you can use it like a project which is in your solution.
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Closed 10 years ago.
I am writing a silverlight application using c#. For the project I need to be able to compile and download a program to an external drive. I have the code to do this however it is written in Java.
The code is extensive and would take an excessive amount of time to translate all of it into c#. Is there an alternate way to translate the code into c# or is there a way to run java code within a c# project?
You could always compile it as an executable and run it with Process.Start.
You can use IKVM.net to convert the jar to a dll
In google you can find a online service for it or change same code witch doesn't work
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Closed 10 years ago.
I am fascinated by the program "Fences"
How can I implement something which resides on the desktop like it does?
you can move around the fences and they are persistent.
image i.i.com.com/cnwk.1d/i/tim//2009/10/05/Foreman_11108546_4825_fences_210x158.jpg http://i.i.com.com/cnwk.1d/i/tim//2009/10/05/Foreman_11108546_4825_fences_210x158.jpg
My guess is that it has been implemented using a dot net language. Can this be done in C# ?
It's possible that Fences is written in a .NET langage, but it's more likely to be written in C++. A program like this requires very tight integration with the Win32 API - which can be done from .NET, but is easier with C/C++.
Shell extensions required to be coded using a language tied to the Win32 API.
The 'appearance customization window' might be coded using .Net, but the core program is probably C++.
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Closed 11 years ago.
I want to create an application which can copy the tool tip (the tool tips which are shown on the current desktop/window) if I press hot keys. So how can I track whether the current desktop having a tool tip.
First, its not possible to use the Managed.Net API to access windows in other applications so you will have to do somthing a bit different.
I guess you could use the Win32 API to enumerate windows and find those of the class Tooltip_Class32. Then you'd have to read the text on them.
You can enum windows as described on SO here and on PInvoke.net here.
If you limit to just the Tooltip_Class32 then you will only get the tool tip windows.
I'm not sure how windows contructs a tool tip. I'm guessing you can read the text from the tool tip or from some child control window by using the SendMessage API with the WM_GETTEXT message like here.
That should get you started, I've never actually done it myself but it seems feasible.
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Closed 10 years ago.
I want to have a java app running, using a function/method (with as little delay as possible I hope!) in a c# class...
The c# function takes a string from the java app, and returns a string.. Had to do it in c# to make a OleDbConnection in windows..
I'm not sure what exactly you need.
If you need to call Java code from inside C#, you could try IKVM.
If you need to launch a standalone Java app, use whatever .NET has for spawning subprocesses.
If the only reason why you're using C# is OleDbConnection, you could see if there's a Java driver for the database you need to contact. Or an ODBC driver, and use the JDBC/ODBC bridge.
I am author of jni4net, open source interprocess bridge between JVM and CLR. It's build on top of JNI and PInvoke. No C/C++ code needed. I hope it will help you.