Screenflick has some support for AppleScript through the use of GUI scripting. See the example below.
-- Screenflick AppleScript Example
-- This example demonstrates how to set several critical properties of a recording, and how to stop and start a recording, with or without using Screenflick's built-in timer. Pick the pieces you need to build the solution appropriate for you.
-- Requires that "access for assistive devices" be turned on in System Preferences.
-- In 10.6 and 10.7 this is in the "Universal Access" preference pane.
-- In 10.8 it is in the "Accessibility" preference pane
-- In 10.9 it is in the "Security & Privacy" preference pane in the "Accessibility" tab
-- Bring Screenflick to the front
tell application "Screenflick" to activate
-- Start a recording
tell application "System Events"
tell process "Screenflick"
-- Open the Recording view
click menu item "Recording" of menu "Window" of menu bar 1
-- Set the recording timer
tell window "Screenflick"
-- Turn the timer off
tell checkbox "Set Timer"
if (its value as boolean) then click it
end tell
-- Turn the timer on
click checkbox "Set Timer"
tell sheet 1
set value of text field 1 to "0" -- hours
set value of text field 2 to "0" -- minutes
set value of text field 3 to "15" -- seconds
keystroke return
end tell
end tell
-- Start Recording (Open the Screen Selection view)
click menu item "Start Recording" of menu "Record" of menu bar 1
delay 1
-- Set the screen area to record
tell window "Selection Window"
perform action "AXRaise" -- makes the window frontmost
tell pop up button "Selection Type"
click -- Show the menu
click menu item "Fixed Size" of menu 1
end tell
-- Set the left / bottom of the selected area in global screen points
-- Must set the values to strings, not integers
set value of text field "Left" to "100"
set value of text field "Bottom" to "100"
-- Triggers Screenflick to use those values
-- (only confirming one of the fields is fine)
perform action "AXConfirm" of text field "Left"
-- Set width and height of the recording area
set value of text field "Width" to "800"
set value of text field "Height" to "600"
perform action "AXConfirm" of text field "Width"
end tell
-- Now start recording
click button "Record" of window "Selection Window"
end tell
end tell
delay 10
-- Stop a recording manually (If the timer is used, you shouldn't normally stop it manually)
tell application "System Events"
tell process "Screenflick"
click menu item "Stop Recording" of menu "Record" of menu bar 1
end tell
end tell