Hi, hello everyone.
I am having troubles modulating these dtmf codes in visual studio 2008 in C.
After going to Properties and selecting compile as C code, i complied it( F7) and then debuged it(F5) and then i was stopeed by this error window saying:
Unable to start program
'C:\Users\Trinetra\Documents\nltvc\dtmf\Debug\dtmf.exe.'
The system cannot find the file specified.

Help me what do I do?

Trinetra.

The compiler did not create the dtmf.exe file for some reason. To compile the program as C all you have to do is rename the file dtmf.c instead of dtmf.cpp