P:\test>type 275606.pl
#! perl -slw
use strict;
use Win32::GuiTest qw[ GetComboText GetComboContents ];

eval{ GetComboText() } or print $@;
eval{ GetComboContents() } or print $@;

P:\test>275606
Usage: Win32::GuiTest::GetComboText(hwnd, index) at P:\test\275606.pl line 5.

Usage: Win32::GuiTest::GetComboContents(hWnd) at P:\test\275606.pl line 6.