how to activate ScreenSaver?

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HarryTuttle

Joined: 26 Sep 2003
Posts: 211
Location: Poland

HarryTuttle 04 Feb 2004, 09:59

I do like this:

Code:

include '%fasminc%/win32ax.inc'
WM_SYSCOMMAND = 112h
SC_SCREENSAVE = 0f140h
.code
start:
invoke GetDesktopWindow
invoke PostMessage,eax,WM_SYSCOMMAND,SC_SCREENSAVE,0
invoke ExitProcess,0
.end start

end it doesn't work...
What's wrong with my code?

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04 Feb 2004, 09:59

Dryobates

Joined: 13 Jul 2003
Posts: 46
Location: Poland

Dryobates 04 Feb 2004, 11:31

Code:

format PE console

include '%include%\win32a.inc'

WM_SYSCOMMAND = 112h
SC_SCREENSAVE = 0f140h

section '.code' readable executable

  entry start

start:
        invoke GetDesktopWindow
        invoke PostMessage,eax,WM_SYSCOMMAND,SC_SCREENSAVE,0
        invoke ExitProcess,0

section '.idata' import data readable writeable

  library kernel, 'kernel32.dll', \
          user, 'user32.dll'
  import kernel, \
         ExitProcess, 'ExitProcess'
  import user,\
         PostMessage,'PostMessageA',\
         GetDesktopWindow, 'GetDesktopWindow'

That's works Smile

04 Feb 2004, 11:31

HarryTuttle

Joined: 26 Sep 2003
Posts: 211
Location: Poland

HarryTuttle 04 Feb 2004, 12:08

I know ,what I'll say can be little strange but your code dryobates dosn't work a well as mine.

THX any way!
is it possible that windows or any programm lock the messages?

btw : let you upgrade your FASM version to latest 1.51

_________________
Microsoft: brings power of yesterday to computers of today.

04 Feb 2004, 12:08

Dryobates

Joined: 13 Jul 2003
Posts: 46
Location: Poland

Dryobates 04 Feb 2004, 14:00

Quote:

I know ,what I'll say can be little strange but your code dryobates dosn't work a well as mine.

It is working on my comp. Maybe you haven't set screensaver?

Quote:

is it possible that windows or any programm lock the messages?

It is possible. E.g. some CD-burners do that.

Quote:

btw : let you upgrade your FASM version to latest 1.51

I use FASM 1.51 beta 4, WinXP and have set screensaver (but there's now information about it in system.ini)

04 Feb 2004, 14:00

HarryTuttle

Joined: 26 Sep 2003
Posts: 211
Location: Poland

HarryTuttle 04 Feb 2004, 14:45

so I think you changed %fasminc% to %include% to support older fasm's sources.(right?)

I have no Idea what happend but on another computer everything: as yours as my code works well, so maybe something blocked the screen saver.
I checked settings and screensaver was turn on but worked only when click preview.

How to block screensaver or how to check the screensaver is blocked?

very thank You Dryobates!

regards,

_________________
Microsoft: brings power of yesterday to computers of today.

04 Feb 2004, 14:45

Dryobates

Joined: 13 Jul 2003
Posts: 46
Location: Poland

Dryobates 04 Feb 2004, 16:30

Quote:

so I think you changed %fasminc% to %include% to support older fasm's sources.(right?)

I've just add another alias Smile

How to block screensaver or how to check the screensaver is blocked?
[/quote]
In Plantform SDK you can read:

Quote:

Windows does not start the screen saver if any of the following conditions exist:

- The active application is not a Windows-based application.
- A computer-based training (CBT) window is present.
- The active application receives the WM_SYSCOMMAND message with the wParam parameter set to the SC_SCREENSAVE value, but it does not pass the message to the DefWindowProc function.

So check them.

04 Feb 2004, 16:30

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