Help with strcmp!

I am making a simple .wav file player, and I have a file system-like thing in a listbox. I want to detect if the selected file contains .wav:

I tried:

char wav is declared as ".wav";

if(!strcmp(szFile, wav))
{
PlaySound(szBuffer, NULL, SND_FILENAME | SND_ASYNC);
}
else
{
MessageBox(hwnd, "Must be valid .wav format!", "Error", MB_OK + MB_ICONINFORMATION);
}

but I get the error message under the "else" statement. How do I use strcmp to check the string?

I think you need to use strstr() instead.

if(strstr(szFile, wav) != NULL)
{
PlaySound(szBuffer, NULL, SND_FILENAME | SND_ASYNC);
}
else
{
MessageBox(hwnd, "Must be valid .wav format!", "Error", MB_OK + MB_ICONINFORMATION);
}

Thanks for the help!