function on_error_query(prg_name: String): void {
    // Gjs wrapper for g_on_error_query()

Prompts the user with `[E]xit, [H]alt, show [S]tack trace or [P]roceed`. This function is intended to be used for debugging use only. The following example shows how it can be used together with the GLib.log functions.

|[<!-- language="C" --> #include <glib.h>

static void log_handler (const gchar *log_domain, GLogLevelFlags log_level, const gchar *message, gpointer user_data) { g_log_default_handler (log_domain, log_level, message, user_data);

g_on_error_query (MY_PROGRAM_NAME); }

int main (int argc, char *argv[]) { g_log_set_handler (MY_LOG_DOMAIN, G_LOG_LEVEL_WARNING | G_LOG_LEVEL_ERROR | G_LOG_LEVEL_CRITICAL, log_handler, NULL); ... ]|

If "[E]xit" is selected, the application terminates with a call to _exit(0).

If "[S]tack" trace is selected, GLib.on_error_stack_trace is called. This invokes gdb, which attaches to the current process and shows a stack trace. The prompt is then shown again.

If "[P]roceed" is selected, the function returns.

This function may cause different actions on non-UNIX platforms.


the program name, needed by gdb for the "[S]tack trace" option. If prg_name is null, GLib.get_prgname is called to get the program name (which will work correctly if gdk_init() or gtk_init() has been called)