simple way to make your window transparent

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vbVeryBeginner

Joined: 15 Aug 2004
Posts: 884
Location: \\world\asia\malaysia

vbVeryBeginner 07 Apr 2006, 15:22

it is so easy to make your window a little bit transparent.

Code:

invoke  GetWindowLong,[hwnd],GWL_EXSTYLE
                or   eax,WS_EX_LAYERED
invoke  SetWindowLong,[hwnd],GWL_EXSTYLE,eax
invoke  SetLayeredWindowAttributes,[hwnd],0,150,LWA_ALPHA

for the third parameter for SetLayeredWindowAttributes, you could fill in the value from 0 to 255, 0 = complete trasnparent, 255 = opaque

easy right Laughing

07 Apr 2006, 15:22

vid
Verbosity in development

Joined: 05 Sep 2003
Posts: 7103
Location: Slovakia

vid 07 Apr 2006, 18:09

supported since which windows version? this is quite important thing

07 Apr 2006, 18:09

vbVeryBeginner

Joined: 15 Aug 2004
Posts: 884
Location: \\world\asia\malaysia

vbVeryBeginner 07 Apr 2006, 23:58

according to psdk,
SetLayeredWindowAttributes API requires Windows 2000 and unsupported in Windows 95/98.

no luck for win9x :p

07 Apr 2006, 23:58

RedGhost

Joined: 18 May 2005
Posts: 443
Location: BC, Canada

RedGhost 08 Apr 2006, 02:38

works for NT kernel

i've used it for some time, it's a nice feature to make the window fade in/fade out when minimizing to taskbar (atleast i think) with a loop of SetLayeredWindowAttributes

_________________
redghost.ca

08 Apr 2006, 02:38

FrozenKnight

Joined: 24 Jun 2005
Posts: 128

FrozenKnight 11 Apr 2006, 09:47

layered windows were first introduced in win 2000

11 Apr 2006, 09:47

cod3b453

Joined: 25 Aug 2004
Posts: 618

cod3b453 13 Apr 2006, 17:04

vbVeryBeginner wrote:

no luck for win9x :p

Almost, I managed to make [semi] transparent windows and menus on windows 9x for my "XTB" toolbar program. The advantage here was I could choose what was transparent, I wrote this in VB6 and I'm still trying to convert it to FASM Very Happy

13 Apr 2006, 17:04

Vasilev Vjacheslav

Joined: 11 Aug 2004
Posts: 392

Vasilev Vjacheslav 14 Apr 2006, 16:52

cod3b453, can you share vb source code?

14 Apr 2006, 16:52

cod3b453

Joined: 25 Aug 2004
Posts: 618

cod3b453 15 Apr 2006, 11:43

Which bit are you interested in, Vasilev?

15 Apr 2006, 11:43

Vasilev Vjacheslav

Joined: 11 Aug 2004
Posts: 392

Vasilev Vjacheslav 16 Apr 2006, 09:55

i'm interested in porting

16 Apr 2006, 09:55

cod3b453

Joined: 25 Aug 2004
Posts: 618

cod3b453 17 Apr 2006, 19:00

I would rather not share my VB source at this moment in time, until I have written the improved GUI on my FASM version.

17 Apr 2006, 19:00

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