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?

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?

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.

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.

I have an application that calls win32 Dlls in c# with P/Invoke. The application works fine in the 32-bit window XP. When I migrate it to the 64-bit window XP( virtual machine ), the application fail to load win32 DLLs and with an error message of {"An attempt was made to load a program with an incorrect format. (Exception from HRESULT: 0x8007000B)"}. Anyone know whats the problem and how to solve this problem. Any help is appreciated. Thanks.

I call the "GetOpenFileName" (Win32 API function) to creates and Open a dialog box. The dialog box is popped up but it is a modeless dialog. What I want is a modal dialog box. Anyone know how to solve this problem? Thanks. -- modified at 5:35 Wednesday 29th August, 2007 I have to customise the OpenFileDialog so that it support the picture preview in the OpenFileDialog box. So I can't use the normal OpenFileDialog class.

I'd like to change the way the value displayed in the grid. So I create a class which derived from UITypeEditor and I have overriden the GetPaintValueSupported and PaintValue methods. Unfortunately there is a small rectangle display in the grid. Is there a way to remove this rectangle? So that I can draw whatever I want. Thanks in advance....