Programmatically Setting Emacs Window as Input Focus

Question

How do I programmaticaly force my Emacs X Window to get current user input focus?

I want to use this in the following Bash script

# Debug in Emacs using GDB
function emacs-gdb()
{
    if [ -z $1 ]; then
        echo -e "Usage: $FUNCNAME EXE EXE_ARGS...";
    else
        if (($# >= 2)); then
            local ARGS="--args ${@:1:100}";
        else
            local ARGS="$1";
        fi
    emacsclient --eval "(gdb \"gdb -i=mi $ARGS\")"
    fi
}

to make the Emacs window automatically get window focus.

Answer 1

I've had this copied from somewhere related to org-protocol. It should help you as well:

(defadvice raise-frame (after make-it-work (&optional frame) activate)
    "Work around some bug? in raise-frame/Emacs/GTK/Metacity/something.
     Katsumi Yamaoka posted this in
     http://article.gmane.org/gmane.emacs.devel:39702"
     (call-process
     "wmctrl" nil nil nil "-s" "1")
     (call-process
     "wmctrl" nil nil nil "-i" "-R"
     (frame-parameter (or frame (selected-frame)) 'outer-window-id)))

This is in addition to @tungd's advice of calling raise-frame of course.

Answer 2

You can do this by adding the call to raise-frame in your eval code.

For example:

emacsclient --eval "(progn (raise-frame) (gdb \"gdb -i=mi $ARGS\"))"