c-vt-encode-focus/src/main.c

Encode a focus gained event as CSI I, for programs that turn on focus reporting (mode 1004).

#include <stdio.h>
#include <ghostty/vt.h>

int main() {
  uint8_t buf[8];
  size_t written = 0;
 
  GhosttyResult result = ghostty_focus_encode(
      GHOSTTY_FOCUS_GAINED, buf, sizeof(buf), &written);
 
  if (result == GHOSTTY_SUCCESS) {
    printf("Encoded %zu bytes: ", written);
    fwrite(buf, 1, written, stdout);
    printf("\n");
  }
 
  return 0;
}