Hello all,
When I was trying to learn how to use threads with Win32::Gui, I got help
from a lot of people on this list. I wrote this code as a way to test it.
Basically without the thread when the sleep command runs the window become
unresponsive, with threads you can keep doing things to the window.
use Win32::GUI;
use threads;
use vars qw( $MainWin );
$howlong = 180;
$MainWin = new Win32::GUI::Window(
-name => "MainWin",
-text => "Fork Test",
-width => 500,
-height => 700,
-left => 100,
-top => 100,
-menu => $Menu,
-font => $Font,
);
$MainWin->AddButton(
-name => "Button1",
-text => "TEST",
-align => center,
-valign => center,
-left => 350,
-top => 10,
);
$RTF = $MainWin->AddRichEdit(
-name => "RTF",
-left => 10,
-top => 50,
-width => $MainWin->ScaleWidth-20,
-height => $MainWin->ScaleHeight-70,
-multiline => 1,
-addstyle => ES_READONLY,
);
$MainWin->Show();
Win32::GUI::Dialog();
sub MainWin_Terminate {
return -1;
}
sub Button1_Click {
$MainWin->Button1->Disable();
$info = "I can send stuff";
threads->create(\&do_stuff, $info)->detach;
}
sub do_stuff {
$RTF->ReplaceSel("Hello I am the child process and like any child I'm
going to sleep while my parent keeps working.\r\n");
$RTF->ReplaceSel("So go ahead an minimize the window, move it, go to
other windows and then back to this one.\r\n");
$RTF->ReplaceSel("My parent will do all the work.\r\n");
$RTF->ReplaceSel("$_[0].\r\n");
$MainWin->Update();
$MainWin->DoEvents();
sleep($howlong);
$RTF->ReplaceSel("Finished sleeping\r\n");
$MainWin->Button1->Enable();
}
|---------+------------------------------------------------>
| | "Jez White" |
| | <[EMAIL PROTECTED]> |
| | Sent by: |
| | [EMAIL PROTECTED]|
| | ceforge.net |
| | |
| | |
| | 11/28/2004 07:09 AM |
| | |
|---------+------------------------------------------------>
>----------------------------------------------------------------------------------------------------------|
|
|
| To: "Harlan Carvey" <[EMAIL PROTECTED]>, "Alex Lee" <[EMAIL
PROTECTED]>, "Win32-GUI List" |
| <perl-win32-gui-users@lists.sourceforge.net>
|
| cc: (bcc: Joseph Vieira/DMR/CA)
|
| Subject: Re: FW: [perl-win32-gui-users] Website - Code snippets
gallery |
>----------------------------------------------------------------------------------------------------------|
Hi,
> I can put together GUIs...been doing it in Java, Tk,
> and using Win32::GUI. One thing I'd be interested in
> would be how to write a Windows app that has a GUI
> that responds when you click buttons, but the
> underlying activities/background processes continue to
> run.
This is doable by using threads - you will probably better of using the
latest version of Perl (5.8.4?) as you can, since threading is generally
weak in early versions. Win32::gui seems fine with threads since I've been
able to create C threads (via an xs module) which were able to fire events
in the GUI via windows SendMessages.
Cheers,
jez.
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