Multithreading program!

[TaiZhong]

I would like to create a method that within the method it will handle the mouse click event and after the user has input 2 points the method will return a value back to the caller. void Test(){ /* The Drawline method should allow user to click the left mouse button 2 times to accept 2 points,after that the DrawLine method will return a true value;*/ bool isDraw = DrawLine(); } Anyone know what should I do within the DrawLine() method? All help is appreciated. Thanks.

[Ashfield]

TaiZhong wrote:

I would like to create a method that within the method it will handle the mouse click event and after the user has input 2 points the method will return a value back to the caller.

What has this to do with multi-threading? Anyway, return what value back to the caller? What caller? You need to handle the mouse button down/up events I expect. Post your code for further assistance.

Bob Ashfield Consultants Ltd

[TaiZhong]

I am sorry, I am not sure whether its something do to with multithreading or not. You can forget about the "caller" if this terms confuse you (Caller means those who call this DrawLine() method). I just want to know how to make the program to stop at the DrawLine() method and after I have accept 2 points from the mouse down button then will return a true value back from the DrawLine method and after that the program will proceed. void Test(){ /* The program should wait untill I accept 2 points from the mouse down event after that a true value will return by DrawLine() to "temp" variables */ bool temp= DrawLine(); } I don't know what should I handle within the DrawLine() method.

[leppie]

The exact way describe is not possible in .NET or most languages for that matter. To do it (exactly) like you show, your language will need to support continuations (only Ruby and Scheme does that AFAIK). The solution to your problem is to rethink the problem, and design it so it can be handled by the platform/language.

xacc.ide - now with TabsToSpaces support
IronScheme - 1.0 alpha 4a out now (29 May 2008)

[TaiZhong]

I am using a third party components and it is written by C# .NET and there is a method that works exactly like what I have described previously I wonder how they did it?

[SteveNY]

Just handle the mouse click event and have a counter var in your class, increment it each time the click event happens and call the drawline method, in the drawline method check the counter, if it's the amount you want (2 in your case) reset it back to 0 and return true.

[TaiZhong]

I have a question, if you want the program to stop at a method (drawLine() in my case), isn't it there must be a loop inside that method and loop untill the user have click the mouse button 2 times and only stop the loop and return a value?