I have never used sed to search and replace on a pattern that is over multiple lines and am a little confused on how I tell sed to look at the next line, if I can. For example, I am searching for this:

static void c0000_ietexit(void)
{

When that is found I want to add this line.

int processReturnCode = 0;

I just am not sure how to tell the search to look at the next line and then inturn pass that back to the replace.