I think i have the same problem. I want to copy the a font file by using my program, but the only thing i managed until now is to register the font file vie AddFontResoucre so openoffice can use it until my pc reboots. I tried to get write permissions by using FileIoPermission for the font-Directory but when my program actually copies the file to the directory it says i dont have the permission to do so. My code looks like this: FileIOPermission f2 = new FileIOPermission(FileIOPermissionAccess.Write, "C:\\Windows\\Fonts\\"); f2.AddPathList(FileIOPermissionAccess.Read, fontPath); try { f2.Demand(); System.IO.File.Copy(fontPath, destination); } catch (SecurityException se) { MessageBox.Show(se.ToString()); } catch (UnauthorizedAccessException ex) { MessageBox.Show(ex.ToString()); }

None of the above answers will work for me. I found out that I can use SoapExtension to get the data I need. Just in case someone ever has the same question.

Why the soapbox if you're not thinking of using Oracle ?

Thanks for suggesting ReaderWriterLock, I already looked into it before and it seemed what I wanted, but using lock was just easier. I also knew about iteration problem, but I do not worry about that as I only need to insert and get data back.

I see. thanks. Do you know if there are any restrictions on types you can use within .net COM client? I have my C# class do: new SqlConnection(connectionstring) and it throws access violation exception: Error Msg: System.TypeInitializationException: The type initializer for 'System. Data.SqlClient.SqlConnectionFactory' threw an exception. ---> System.TypeInitial izationException: The type initializer for 'System.Data.SqlClient.SqlPerformance Counters' threw an exception. ---> System.AccessViolationException: Attempted to read or write protected memory. This is often an indication that other memory h as been corrupted. at System.Data.ProviderBase.DbConnectionPoolCounters.GetInstanceName() at System.Data.ProviderBase.DbConnectionPoolCounters.InitCounters(String cate goryName, String categoryHelp) at System.Data.SqlClient.SqlPerformanceCounters..ctor() at System.Data.SqlClient.SqlPerformanceCounters..cctor() --- End of inner exception stack trace --- at System.Data.SqlClient.SqlConnectionFactory..ctor() at System.Data.SqlClient.SqlConnectionFactory..cctor() --- End of inner exception stack trace --- at System.Data.SqlClient.SqlConnection..ctor() at System.Data.SqlClient.SqlConnection..ctor(String connectionString) When I use my client thru C#, it's all fine. My C++ COM clinet is very simple for the test case, it just creates COM object and calls one method with no parameters and no return values (I did that to see if it was some memory problem in C++ client).

I am not sure i understood you, you want to import the class or class static functions? Could you elaborate a little more? - Shailesh

still looking for a good (and fast) solution for the same problem... please someone help :)

See the BitConverter class documentation in the .NET Framework SDK. Microsoft MVP, Visual C# My Articles

I recall reading a trick that mite work (not sure if it on works for 8 bit colors), but i forgot now :doh: (has to do with an XOR with -1 or just using the complement of an int, a color is just an int). But be inventive, try this: A2 = 256 - A1;//now this would be dumb R2 = 255 - R1; G2 = 255 - G1; B2 = 255 - B1; Mite work, let me know, im interested in what works :) [edit] this works pretty good [edit] top secret

Well, this all depends on the functionality you're using. I think Heath's just about right, you'd have to use PInvoke to load up and determine the starting proc address, but my gut is telling me that you'd probably also need to monkey around with some dynamic method invocation (dig through the System.Reflection namespace). Are you using a COM/ActiveX component located in this DLL? Then definately the Reflection stuff: you'd need to get a dynamic Type reference, then call "InvokeMember" on it. Is it just a chunk of procedural code within the DLL? Your only recourse may be to do the entire thing using PInvoke'd API calls: LoadLibrary, GetProcAddress, and more likely than not, CallProcEx32W. Have fun :) Jeremy Kimball

MeasureCharacterRanges makes things even worse. What i'm doing is drawing text on a curve, so I need to draw each character seperately, because each character is at different x, y position and different rotation angle. The way measurestring (or measurecharacterranges) work is that it looks like it's done using fixed width font.

Thanks. That's what I thought. I got it to work on drawing on ellipse by using some math. It was a pain. Had to brush up on my trig.

I was already looking at the first method of doing it. I just thought that maybe there is some .net method somewhere that would give me that. Thanks.