c-vt-modes/src/main.c

Pack DEC and ANSI mode numbers into a GhosttyMode and encode a DECRPM report.

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

void modes_example() {
  // Create a mode for DEC mode 25 (cursor visible)
  GhosttyMode tag = ghostty_mode_new(25, false);
  printf("value=%u ansi=%d packed=0x%04x\n",
      ghostty_mode_value(tag),
      ghostty_mode_ansi(tag),
      tag);
 
  // Create a mode for ANSI mode 4 (insert mode)
  GhosttyMode ansi_tag = ghostty_mode_new(4, true);
  printf("value=%u ansi=%d packed=0x%04x\n",
      ghostty_mode_value(ansi_tag),
      ghostty_mode_ansi(ansi_tag),
      ansi_tag);
}

void decrpm_example() {
  uint8_t buf[32];
  size_t written = 0;
 
  // Encode a report that DEC mode 25 (cursor visible) is set
  GhosttyResult result = ghostty_mode_report_encode(
      GHOSTTY_MODE_CURSOR_VISIBLE,
      GHOSTTY_MODE_REPORT_SET,
      buf, sizeof(buf), &written);
 
  if (result == GHOSTTY_SUCCESS) {
    printf("Encoded %zu bytes: ", written);
    fwrite(buf, 1, written, stdout);
    printf("\n");  // prints: ESC[?25;1$y
  }
}
 
int main() {
  modes_example();
  decrpm_example();
  return 0;
}