Re: [PerlChina] Gtk在root窗口画图，不会取expose信号。

On 09/05/2011 02:08 PM, eexpress wrote:

#!/usr/bin/perl

use  Gtk2 "-init";

$file="$ENV{HOME}/tt.png";

Gtk2->init;
$screen=Gtk2::Gdk::Screen->get_default;
$window=$screen->get_root_window;
#$screen->broadcast_client_message(Gtk2::Gdk::Event->new("expose"));
#$window->signal_connect('expose_event', \&expose, $window);

$gc = Gtk2::Gdk::GC->new ($window, undef);
($real_drawable,$x_offset,$y_offset)=$window->get_internal_paint_info;
expose();
#Gtk2->main_iteration while Gtk2->events_pending;
Gtk2->main();
#Gtk2->main_iteration;

sub expose {
$pixbuf=Gtk2::Gdk::Pixbuf->new_from_file($file);
($format,$width,$height)=$pixbuf->get_file_info($file);
$pixbuf->render_to_drawable($real_drawable,$gc,0,0,100,100,$width,$height,'normal',0,0);
}

请人帮忙测试下，搞定啊。
画的图，都被擦除了。

要直接画图到桌面上 参考这个吧
http://gtk2-perl.sourceforge.net/doc/gtk2-perl-study-guide/x2176.html

你不 use strict不怕出事吗... >_<