I have just installed the community edition of Visual Studio and the latest beta version of Visual Micro.

I loaded up my project from the basic .ino file as I was previously using Atmel Studio and wanted a clean start and got a red wiggly error line under the function name (doSomething in loop code below). In the Arduino IDE and Atmel Studio there is no error. The code does compile correctly though in my new install, there is just the red error warning.

Below is a minimum stripped version of the code that triggers the error:

String numbers[] = {"one","two","three"};

void setup()
{

}

void loop()
{
     doSomething(numbers);
}

void doSomething(String dataArray[])
{

}

The error says:

More than one instance of the overloaded function doSomething matches the argument list:
Function "doSomething(<error-type> *dataArray)"
Function "doSomething(String *dataArray)"

There is only one instance of the doSomething function though.

When you first type the code it sometimes appears without the line but when Visual Studio is restarted and the project reloaded it shows the error.

It looks like vs2013 is confused by the prototypes that Visual Micro adds to the vsarduino.h

The next release during the next week excludes the prototypes from 2013 and it seems to fix the intellisense issue. (The change does not affect compilation which remains unchanged)

Thanks for the report.

Yes the prototypes are used during the compile and not required in vs2012 and vs2013. Without them vs2010 and v2008 do not give intellisense from other .ino files in the same project.

It was a small change and quite important so the latest pre-release has been updated

If you go to the downloads page you will see a link that says "download the latest visual micro beta" (in small text). Close your ide and then click the link to download and run it. 

http://www.visualmicro.com/page/Arduino-Visual-Studio-Downloads.aspx

You will have to click the "more info>run anyway" on the security warning because not many people have downloaded the file yet 

It's not really a beta because it is due for official release next week.

Thanks

Good to hear. Ongoing I think you will find a few things that the vs intellisense does not understand. The Microsoft C++ is slightly different to Arduino C++ but is should be a 99% fit in most cases.

Thanks for the advise on strings.

I found an example (Arrays of strings) at the bottom of the following Arduino page:

http://arduino.cc/en/Reference/PROGMEM

Is this what you mean?