On Friday 23 June 2006 10:45, Rory Walsh wrote:

> I am sending k-rate values to a host app from Csound using the software 
> bus. Is there a way to format the values first before they are sent? For 
> example I would like to format the float values to one decimal place 
> before they are sent.

What do you mean by formatting the float value to one decimal place ?
If you want to send it as a string, you can use sprintf:

Stmp sprintf "%.1f", ivalue
     chnset Stmp, "ChannelName"

Or, if you just want to send a float but with rounding (note that this
will not be accurate):

     chnset round(ivalue * 10) / 10, "ChannelName"

> Actually I have another question, I've been using csoundGetChannelPtr()
> to communicate with the software bus. This stores a pointer to the
> specified channel, but the pointer is to type MYFLT, so how can I send
> and receive strings this way?

By casting the MYFLT* pointer to char* (if you are using C or C++; in
Python or Java, the csnd.CsoundMYFLTArray class is used). The string
channels are a buffer of characters with a size that can be queried
with the csoundGetStrVarMaxLen() function which should be called after
csoundCompile(). Note that you also need space for the NUL character
that terminates the string, so if csoundGetStrVarMaxLen() returns 256,
you can store 255 characters and a '\0'.

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