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By using this code, you agree to the following terms...
1) You may use
this code in your own programs (and may compile it into a program and distribute it in compiled format for langauges that allow it) freely and with no charge.
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//**************************************
//
// Name: Make a Transparent Area (Any Si
// ze) in your Form
// Description:This function create a tr
// ansparent area of dirrent shape (such as
// rectangle, Circle)
in your form, you specify where and how big the hole is. Unlike most other trnsparant
routine, this one not only let you see trough it, but also allow you total access
access the things in the hole!!! Of course, You can make the entire form transparent
or make you form C - shaped!
Fully tested in VB5 and VB6.
// By: Dalin Nie
//
//This code is copyrighted and has // limited warranties.Please see http://
// www.Planet-Source-Code.com/xq/ASP/txtCod
// eId.1617/lngWId.-10/qx/vb/scripts/ShowCo
// de.htm //for details. //**************************************
//
'1, Declararion
' This should be in the form's General Declaration Area. If you declare in a Modeule,
' you need to omit the word "private"
Private Declare Function CreateRoundRectRgn Lib "gdi32" (ByVal X1 As Long, ByVal Y1 As Long, ByVal X2 As Long, ByVal Y2 As Long, ByVal X3 As Long, ByVal Y3 As Long) As Long
Private Declare Function CreateRectRgn Lib "gdi32" (ByVal X1 As Long, ByVal Y1 As Long, ByVal X2 As Long, ByVal Y2 As Long) As Long
Private Declare Function CreateEllipticRgn Lib "gdi32" (ByVal X1 As Long, ByVal Y1 As Long, ByVal X2 As Long, ByVal Y2 As Long) As Long
Private Declare Function CombineRgn Lib "gdi32" (ByVal hDestRgn As Long, ByVal hSrcRgn1 As Long, ByVal hSrcRgn2 As Long, ByVal nCombineMode As Long) As Long
Private Declare Function SetWindowRgn Lib "user32" (ByVal hWnd As Long, ByVal hRgn As Long, ByVal bRedraw As Long) As Long
'2 The Function
' This should be in the form's code.
Private Function fMakeATranspArea(AreaType As String, pCordinate() As Long) As Boolean
'Name: fMakeATranpArea
'Author: Dalin Nie
'Date: 5/18/98
'Purpose: Create a Transprarent Area in a form so that you can see through
'Input: Areatype : a String indicate what kind of hole shape it would like to make
' PCordinate : the cordinate area needed for create the shape:
' Example: X1, Y1, X2, Y2 for Rectangle
'OutPut: A boolean
Const RGN_DIFF = 4
Dim lOriginalForm As Long
Dim ltheHole As Long
Dim lNewForm As Long
Dim lFwidth As Single
Dim lFHeight As Single
Dim lborder_width As Single
Dim ltitle_height As Single
On Error GoTo Trap
lFwidth = ScaleX(Width, vbTwips, vbPixels)
lFHeight = ScaleY(Height, vbTwips, vbPixels)
lOriginalForm = CreateRectRgn(0, 0, lFwidth, lFHeight)
lborder_width = (lFHeight - ScaleWidth) / 2
ltitle_height = lFHeight - lborder_width - ScaleHeight
Select Case AreaType
Case "Elliptic"
ltheHole = CreateEllipticRgn(pCordinate(1), pCordinate(2), pCordinate(3), pCordinate(4))
Case "RectAngle"
ltheHole = CreateRectRgn(pCordinate(1), pCordinate(2), pCordinate(3), pCordinate(4))
Case "RoundRect"
ltheHole = CreateRoundRectRgn(pCordinate(1), pCordinate(2), pCordinate(3), pCordinate(4), pCordinate(5), pCordinate(6))
Case "Circle"
ltheHole = CreateRoundRectRgn(pCordinate(1), pCordinate(2), pCordinate(3), pCordinate(4), pCordinate(3), pCordinate(4))
Case Else
MsgBox "Unknown Shape!!"
Exit Function
End Select
lNewForm = CreateRectRgn(0, 0, 0, 0)
CombineRgn lNewForm, lOriginalForm, _
ltheHole, RGN_DIFF
SetWindowRgn hWnd, lNewForm, True
Me.Refresh
fMakeATranspArea = True
Exit Function
Trap:
MsgBox "error Occurred. Error # " & Err.Number & ", " & Err.Description
End Function
' 3 How To Call
Dim lParam(1 To 6) As Long
lParam(1) = 100
lParam(2) = 100
lParam(3) = 250
lParam(4) = 250
lParam(5) = 50
lParam(6) = 50
Call fMakeATranspArea("RoundRect", lParam())
'Call fMakeATranspArea("RectAngle", lParam())
'Call fMakeATranspArea("Circle", lParam())
'Call fMakeATranspArea("Elliptic", lParam())
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Other 2 submission(s) by this author
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| Other User Comments |
4/19/1999 8:27:00 AM:anti
I'm making a project in VB 3.o [I
normally use 5.o tho], and this code is
unfortunatly for 32 bit programming
only. If anyone has a similar code for
16 bit basic, please email me with it;
elite_83@hotmail.com.
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4/21/1999 7:22:00 PM:skafia
I cant seem to get this code working,
it keeps giving me errors with the
source, im using vb5, email me if you
can help.
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4/22/1999 5:09:00 AM:Dalin
I just tested it again, and it works
fine.
Did you declare in a module?
What is the error
message?
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4/22/1999 9:33:00 AM:DJLawlor
This one is so cooooooooooooooool!!!
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4/23/1999 6:24:00 PM:John Barden
I have not yet used this, but will it
allow me have a maximized transparent
form and run other applications within
it?
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4/24/1999 4:05:00 AM:Dalin
To John Barden: Yes!!!
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5/1/1999 7:57:00 AM:Ian Ippolito
This code worked for me on the first
try. This is really cool!
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5/1/1999 11:46:00 AM:Eric M
Im unclear about the positioning you
have in this..I cant seem to figure it
out.. What is lparam 1-6 like lparam 1
in the example is that the topright ?
anyways im familiar with x1 and y1 but
thats only 4 numbers you have 6
numbers..
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5/2/1999 6:52:00 PM:Jay
Can someone direct me trought the
proccess of this source code please i
follwed the instruction and exceute he
code but nothig happens i only see the
regular form no hols or any thing in it
so please help me with this .
thanks
in advance.
jay...
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5/2/1999 10:48:00 PM:Terrance Henry Shaw
I don't really get how you use this
code. It is so confusing. Where do I
enter the code?
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5/3/1999 8:29:00 AM:Doug Bumbalough
Great code! Worked on first try!
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5/3/1999 9:27:00 PM:ZeRoFrEEzE
Kool stuff, im 16 years old, and got it
on the first try. Anyone interested on
testing out software, please e-mail me
and ill send you some stuff i created...
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5/4/1999 7:43:00 AM:DOROSMAN
Super!
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5/4/1999 5:23:00 PM:Asim
This is so wicked. The only thing is
that it doesn't support curne shapes.
if know how please email me. thnaks
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5/5/1999 7:47:00 AM:dave shields
superb!
worked first time
to all
those having problems....
have you
followed the instructions and applied
the calling code to an action (a button
for instance)?
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5/5/1999 2:55:00 PM:SoPa
Great Code!!!
Worked on the first
try!
Thanxs a lot man!
But can u
perhaps make a note of each step
of
the code??
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5/5/1999 5:19:00 PM:Flip
really really coool.
Not sure what
I'll use this for, but I'm sure to
think of something!
for those having
probs...don't skip step three and
assign this event to Form_Load if
nothing else.
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5/6/1999 5:02:00 AM:Marcus
Excellent piece of work, its a bit iffy
when you move the form, but thats about
it. I'm not sure what I'm going to use
it for though.
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5/6/1999 5:28:00 AM:Marcus
Add the following code to a timer and
watch the zany efects:
Private Sub
Timer1_Timer()
Dim lParam(1 To 6) As
Long
lParam(1) = Int(Rnd() *
Me.Width / 15)
lParam(2) = Int(Rnd() *
Me.Height / 15)
lParam(3) = Int(Rnd()
* Me.Width / 15)
lParam(4) = Int(Rnd()
* Me.Height / 15)
lParam(5) =
50
lParam(6) = 50
Select Case
Int(Rnd() * 4)
Case 0
Call
fMakeATranspArea("RoundRect",
lParam())
Case 1
Call
fMakeATranspArea("RectAngle",
lParam())
Case 2
Call
fMakeATranspArea("Circle",
lParam())
Case 3
Call
fMakeATranspArea("Elliptic",
lParam())
End Select
End Sub
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5/6/1999 10:03:00 AM:eric chastain
Cool function
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5/6/1999 11:20:00 AM:Russ
Very nicely done! Worked first time!
With a slight tweak here and there, I
now have the function working in a .Bas
module where I can pass any form name
to the function. Also, using a Type
declaration and an Enumerated data type
made it a little tidier.
Anyone
interested in seeing my changes, feel
free to e-mail me.
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5/6/1999 5:43:00 PM:Gyuri van de Bilt
Hi there,
Indeed really cool piece of
coding-art.
BUT:
On resizing a window
that was made transparant (for a small
part) you won't see more of the window
than when the 'fMakeATranspArea'
function was called.
The solution to
this problem (test it and see) is to
call the function (with the same param)
again when resizing the window
(Form1_Resize()).
It will now work
perfectly!
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5/12/1999 5:55:00 AM:Roche Moore
really really excellent
works a
treat
now, any ideas (good) where to
use it?!
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5/12/1999 8:10:00 AM:Joel León Malpartida
it's great code
I'm a peruvian systems
programmner.
greetings.
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5/12/1999 10:37:00 PM:Nikhil Acharya
Good Code , Thanks , I have created
a
Telephone shape form using above
code
for a dialup application.
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5/14/1999 8:55:00 AM:Jaw-Breaker
I haven't test it yet. I'm working on a
hackers control station, I want
everthing for hacking in one program. I
think I can really use this to shape up
the program.
Jaw-Breaker from
Noth-Side hackers
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5/18/1999 11:30:00 AM:dj277
My teacher makes usdo this vb crap, and
I know just about jack about it.
Oh,
Well.
Help!!
I think he's coming!!!
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5/18/1999 12:09:00 PM:t30od
I cant seem to get it to work, can
someone please send me their
source?
Thanks
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5/19/1999 2:57:00 AM:Human
COOOL !!!
try it, it works ...
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5/19/1999 2:14:00 PM:LOGIX
Wow this is some cool code, if any one
is confused email me and i will explain
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5/20/1999 6:26:00 AM:js
CCCCCCCCCCCCCCOOOOOOOOOOOOOLLLLLLLLLLLLL
LLL
CCCCCCCCCCOOOOOOOOOOOODDDDDDDDDDEEEEEEEE
E
Check this
site:
http://browse.to/nm
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5/21/1999 1:05:00 PM:kinema
Code is wicked ... how can I bitblt
stuff from invisible picture boxes into
that transparent area? That way you
eliminate the need for screen
capturing.
Oh, and I'm looking for
kewl graphics effects.
thanks.
listen.to/kinema
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5/23/1999 9:46:00 AM:ah Boon
transparent part in form
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5/23/1999 9:18:00 PM:cryptic
How do u make it so objects are visible
if u
on top of the transparent area?
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5/24/1999 8:26:00 AM:Eric Gaulin
Would it be possible to exclude the
specified region, so the border of the
form will be transparent instead?
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5/24/1999 9:21:00 AM:DAVID PALCZEWSKI -----------
I cant get this to work! It seems it
will be awesome, but can someone send a
example to me. I am using VB 4.0.
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5/24/1999 11:54:00 PM:Alistair Crawford
Excellent code, worked like a
charm.
Is there anyway to make the
transparent area, just transparent and
not be able to click other applications
through the hole. I want to make a
screen capture, draggable cropping
frame, so users must not be able to
click the applications inside the
frame. Please HELP!!!! Anybody.
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5/25/1999 10:21:00 PM:DarkNemesis
Code Works Great..
Heres my
situation..
I want to make my entire
form transparent, but still show an
image on top ( the image dont go
transparent ).
Can anyone help me
with this?
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5/25/1999 11:40:00 PM:David Ulloa P.
Excellent stuff!!!!
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5/26/1999 7:39:00 AM:aluminumblue
nice code.. worked 1st time.. new toy
for my mind, thanks.
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5/26/1999 9:41:00 AM:Solomon
Great code! You must have gotten the
idea from PeepShow (prog that uses this
feature)...nice translation into VB.
Thanks!!!
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5/26/1999 3:22:00 PM:Sharkero
Great, it work the first time!.. I copy
the code for step 3 to a command
button
Command 1 event. Added a button
to the
form and double clicked it.
Then I copy
the code and then REMed
it out from the
form. It worked when
I clicked the button
you have to
enlarged the form a little
bit to see
the hole and then move the form
around and you will see your code
or other windows behind it. It is
cool!
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5/31/1999 12:48:00 AM:Filip
Superb code, but I cannot run the
function multiple times for one form,
because you don't start from the form's
current region, but from a square
region with the size of the form.
I
tried to use the API function
GetWindowRgn, but I always got 0 for
the rgn.
I also tried the API
function CreatePolygonalRgn but could
not make it work.
Could you try
it?
PS: Does anyone know how to add
a menu to the Windows Explorer
File/Folder right-click dropdown
menu?
To do something like
WinZip.
Thanks anyway,
Filip
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5/31/1999 3:48:00 AM:Kenny
Great site!!!
I wonder about gettig a
combobox that
looks like the
comboboxes for load/save in office97,
with both drives and folders in the
same combobox.
Please help me
someone!!!!!
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6/5/1999 8:42:00 PM:-
This code is good.
Anyone know of a
place where I can get my fat fingers
something that'll show me ani-gifs.
I
wanna create a proggie that is like one
of those message ones....
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6/10/1999 4:14:00 PM:HewDude
Cool Script, it should be pointed
outCool Script, it should be pointed
out that the last ten or so lines
should be between "Private Sub
Form_Load()" and "End Sub" Has anyone
modified this script to show images or
buttons infront of the Transparent area
?
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6/12/1999 6:09:00 PM:Michael
I got the code to work on the second
try, but that's ok. I just don't get
how to make my own shapes, like the one
guy who make a phone shape. Can someone
explain to me how to make the different
shapes?
Email me if you can tell me
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6/21/1999 10:38:00 PM:hey
im having trouble with the first word
in the following part: "SetWindowRgn"
hWnd, lNewForm,
True
Me.Refresh
fMakeATranspArea =
True
Exit Function
Trap:
MsgBox
"error Occurred. Error # " & Err.Number
& ", " & Err.Description
End Function
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7/1/1999 10:28:00 AM:DaZZlock
Nåja den är väl ganska bra men jag har
inte testat den än
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7/16/1999 6:11:00 PM:schneider
Be careful when changing region
while
resizing: the code may run, but
the compiled may not! -bug I solved a
few months ago...........
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7/17/1999 9:52:00 AM:Jason Petralia
For those of you who can't get this to
work, here's what you do. Near the end
of the code, it says "'3 How to call"
Put everything above that line in the
declarations area of your form. Put
everything below that line where you
want the transparency to be activated,
such as a command button.
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8/5/1999 12:59:00 PM:mew
this makes the whole thing
transparent,
even the controls in the
form..
how can i prevent the controls
from being transparent 2...;(
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8/14/1999 7:49:00 PM:Chris
Very Nice Code, now how can I make an
image or control show up in front of
the transparent area?
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8/25/1999 9:23:00 AM:jaQx
Fun, but cant have other controls
within transparent area without those
turning transparent also...
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9/7/1999 12:14:00 PM:Sure it works... whatever
Could someone just put a plain example
for usage? something like:
Private
Sub
Form_Load()
fMakeATranspArea("RectAngle
", lParam(5, 10, 10, 10))
End
Sub
that's what I have but it just
says 'expected ='
I'm not an |diot but
people really need more documentation
included with their coding
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9/7/1999 4:42:00 PM:Homer
Sure it works... whatever, ill call him
that or: that guy up there ^. you are
an |diot(i realize u need the | because
|diot is innapropriat language?), and
dont let any one tell you otherwise,
because thats a horrible HORRIBLE lie.
u should learn Visual Basics before
looking up other peoples source code,
because u wouldnt need extra
documentation if you knew VB. IM me on
AOL: homer3685 for help u need with VB,
in case you want to LEARN it. :)
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9/8/1999 4:01:00 PM:Lorenz
Hi! I'm from philippines, and I'd like
to say nice code! First try it
works.... but I have a question what is
lparam(5) and lparam(6) for?..
But
anyway keep up the good work... thanx..
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9/9/1999 3:25:00 PM:AnDroiD
For those who can't run the code here
is how...
1. Paste all the code in
general declaration.
2. Create a
command button.
3. Rename "' 3 How To
Call" to "Private Sub
Command1_Click()"
4. Don't forget to
put an "End Sub" at the last part of
the code.
There ya go it should work
now... :)
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9/10/1999 10:22:00 PM:Rob Volk
This Code is SO easy to use... Don't
know why every1's haveing such a
problem... BUT, How do I
place
objects on top of the transparent part?
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9/18/1999 9:33:00 PM:Grant
Nice code, and easy! But is there a way
to make a picture box stay on top? If
so please email me
-thanks-
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10/5/1999 6:04:00 PM:Roger Taylor
This code worked fine using VB 6.0.
The first time I tried it.
Great code
no problems.
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10/6/1999 11:48:00 PM:bugsmalli
Hey there Dalin,
great code. May I
suggest a simple modification. in the
declarations section just declare one
more api call:
Private Declare
Function SetWindowPos Lib "user32"
(ByVal hwnd As Long, ByVal
hWndInsertAfter As Long, ByVal X As
Long, ByVal Y As Long, ByVal cx As
Long, ByVal cy As Long, ByVal wFlags As
Long) As Long
Const HWND_TOPMOST =
-1
Const HWND_NOTOPMOST = -2
And
anywhere in the form jus declare this
sub:
Public Sub FormOnTop(handle As
Long, ontop As Boolean)
Dim wFlags As
Long, posflag As Long
wFlags =
SWP_NOMOVE Or SWP_NOACTIVATE Or
SWP_NOSIZE Or SWP_SHOWWINDOW
Select
Case ontop
Case True
posflag =
HWND_TOPMOST
Case False
posflag =
HWND_NOTOPMOST
End
Select
SetWindowPos handle, posflag,
0, 0, 0, 0, wFlags
End Sub
And add
this piece of line AFTER the call to
fMakeATranspArea:
formonTop
me.hwnd, true
and see the fun.
have
fun all,
bugsmalli.
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10/11/1999 11:31:00 PM:Irman Jamil
You got the target! Nice code. worked
great.
I think every body should also
try
sugestion from bugsmalli
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7/5/2000 2:04:42 PM:Tommy
Hi, thanks for the great code! It
worked fine creating a hole in my form,
but I can't figure out what each of the
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7/5/2000 2:10:29 PM:Tommy
Hi, this code worked fine creating a
hole in my form, but I can't figure out
what each of the "lParam()"s do. I
can't figure out which one controls the
top, bottom, left, and right. If
anybody could explain what each of the
1-6 does, I'd greatly eppreciate it.
Thanks!
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6/16/2002 3:31:52 AM:Richard
Astounding! Great job! I'm going to
study this code... you've given me much
to think about.
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