How Do I Stop Flickering In Moving Graphics?
I haven't dealt with graphics in vb before, but I know of a common graphics method to reduce/eliminate flicker in animations called double-buffering.
The flicker is caused from clearing the old frame before drawing the new one. To counter this problem you actually would have 2 picture boxes (or whatever you're using) the first one is the visible one that will display the animation. On the second buffer, you do the calculations for the next frame and place all the objects there, then once the frame is ready for display you change the image on the visible buffer to that of the second buffer.
Since I haven't done this in vb before I'm not to helpful in the code department, but hopefully you'll find this method usefull.
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How Do I Stop Flickering Graphics?
I've got two Image Boxes on top of each other. One is a person, the other is the person's clothing. I have the person blink, his facial expressions change, etc, but whenever it does it makes the image flicker as it changes it. I wanted to do the images like this because that way the person can wear all sorts of different clothes without me having to remake every facial expression and body movement for each different clothing. But the flickering is bad and I don't know how to get rid of it.
Any suggestions? If there's a better way to do this too, please tell me. Thanks ahead of time.
Oh, quick note, the top image box, where the clothing image goes, has a transparent background so it doesn't block all the image beneath it.
Flickering Graphics
I am using timers to animate simple graphics ie. have them move across the screen.
The problem is that the graphics (in image boxes) flicker white. Is there anything I can do about this?
My form has ended up with quite a lot of timers doing different things at the same time; could this be the problem?
thanks
Graphics Flickering
I am writing a game using VB that has a bunch of images moving around. Currently there is a lot of flickering. Is there any easier way to solve the flickering problem besides using ActiveX or directX?
How To Stop The Flickering...
Greetings every1,
consider this code,,
Private Sub Timer1_Timer()
Label1.ForeColor=RGB(Rnd*256, Rnd*256, Rnd*256)
End Sub
Timer1.Interval is set to 1.
Now, the label as u can see flickers a lot and sucks. Anyway to improve this stuff.
How To Stop The Flickering.
Greetings every1,
consider this code,,
Private Sub Timer1_Timer()
Label1.ForeColor=RGB(Rnd*256, Rnd*256, Rnd*256)
End Sub
Timer1.Interval is set to 1.
Now, the label as u can see flickers a lot and sucks. Anyway to improve this stuff.
Please Help Me Stop Flickering!
Hi,
I have four imageboxes which update every second. The only problem is, after about three or four updates, the images flicker. Then it will be okay for three or four more, then it will flicker again..
This becomes rather annoying after a prolonged period of time.
Please help!
TIA!
Stop Flickering
I am doing a real basic Screen Saver using a label to display system time. The label of course, bounces all over the screen. The problem is that is flickers so bad. There has to be a way to stop it from flickering? I'm just using a constant while loop, and incrementing the top and left properties of the label by one each iteration.
Thanks,
Shane
How Do I Stop The Flickering
hey ppl,
i have a problem with the text flickering when i run the mouse over the form.. any ideas?
Edited by - Ahmz_055 on 12/6/2004 3:57:08 PM
Flickering - Anyway To Stop It ?
Hi,
I'm using the forms circle method to make a ball bounce around on my form. This effect is simple enough and easy to code, but to make it one circle instead of many circles I need to use .cls
The Code:
Code:If C = 5 then Form1.Cls: C = 0
Form1.Circle (A,B),Radius
C = C + 1
The timer interval is 10, I realised at that speed there is going to be some major flickering (thus adding in the If function above to soften the effects). However, flickering is still a major problem. Is there any way to stop the form from redrawing anything but my circle? Or can anyone suggest any other way to have a circle bouncing around (preferably without having to use a picturebox or another control)?
API To Stop Control Flickering?
I know there is one avaible to do this... but I need to apply it to a listview...
my listview has some icons that update every 50 miliseconds... this causes flickering...
I just need the api and how to apply it to my listview
Stop Listview Flickering?
Hi folks,
I am having trouble in preventing flickering while adding items to a listview.
Please help!
How Can You Stop Form Flickering?
im using a manifest file to have a xp style for my app, but it keeps flickering whenever i move over a control that has been "styled"
how can i stop this?
Picture Flickering Must Stop!!!
I plan to have a picture box move up and down creating a fading up and down color effect. I need to get the picture box the stop flickering but yet still have a timer move the picture box.
How can i get the flickering to stop...?
Help! Stop Flickering Images
I have an image control that contains an .ICO in the corner of a picture box, but when the picturebox refreshes (which is every few seconds) it makes the image in the image control flicker - Anyway to stop this??
The image control contains an icon with the letters "X Y" in it. It is to help visually ID the XY grid drawn with the LINE command.
If you know how to stop the flicker or have a better way to do this PLEASE LET ME KNOW!! All suggestions (good or bad) accepted. I am at the far end of frustration now!
Thanks for 'da help!
How To Stop Label Controls From Flickering?
I'm working on a little app that involves a loop statement that updates a label control very frequently (around 3000 times). Everything works, except for the fact that it flickers. I was wondering if there was any way to stop it.
EXAMPLE:
Code:
For X = 1 to 3000
lblLabel.caption = X & "files found"
Next X
Stop Flickering On Form Load
I have a listview on one form, and when the user clicks on one of the listitems, it loads that persons details into a second form, which has a listbox and approx 20 textboxes on it.
I have tried hiding the second form until it's loaded and I have tried using the LockWindowUpdate on both forms, but I still get a terrible flicker of the second forms textboxes etc.
Any comments will be most welcome.
Here is my code. Please bear with me as it may be a bit rough
This is the code for the listview click event.
Below is the sub for loading the second form (LoadDetails)
Code:
Private Sub lvwIns_Click()
On Error GoTo ErrTrap
'stop error if no records to show
If blnRecords = False Then Exit Sub
'stop if user not clicked on any item - empty white space
If TypeName(lvwIns.HitTest(sglX, sglY)) = "Nothing" Then
lvwIns.SelectedItem = Nothing
Exit Sub
End If
Dim lvwItem As ListItem
Dim RecNum As Long
'get the memb_ID number from the listview
RecNum = lvwIns.SelectedItem.SubItems(4)
'set boolean to stop error re-loading the form
FromLoadDetails = True
frmMembershipDetails.Visible = False
LockWindowUpdate frmInsuranceRenewals.hWnd
LoadDetails RecNum
'add the name of the selected members name to the text box (txtSearch)
Set rs = New ADODB.Recordset
Set cn = New ADODB.Connection
cn.ConnectionString = strConnection & App.Path & "Membership.mdb"
cn.Open
strSQL = "SELECT Memb_ID, First_Name, Middle_Name, Surname FROM tbl_Membership"
strSQL = strSQL & " WHERE Memb_ID = " & RecNum
rs.Open strSQL, cn, adOpenForwardOnly, adLockReadOnly, adCmdText
Dim strTemp As String
If rs!Middle_Name.Value = "" Or IsNull(rs!Middle_Name.Value) Then
strTemp = rs!First_Name.Value & " " & rs!Surname.Value
Else
strTemp = rs!First_Name.Value & " " & rs!Middle_Name.Value & " " & rs!Surname.Value
End If
rs.Close
cn.Close
Set cn = Nothing
Set rs = Nothing
FromLoadDetails = False
'add name and highlight
If lngSearch = 1 Then
frmMembershipDetails.txtSearch.Text = strTemp
frmMembershipDetails.txtSearch.SelStart = 1
frmMembershipDetails.txtSearch.SelLength = Len(frmMembershipDetails.txtSearch.Text) - 1
End If
'open new form
frmMembershipDetails.Visible = True
LockWindowUpdate 0&
Exit Sub
LoadDetails sub:
Code:
Public Sub LoadDetails(MembersID As Long)
On Error GoTo ErrTrap
LockWindowUpdate frmMembershipDetails.hWnd
'load form to stop rs, cn error of being closed
frmMembershipDetails.Visible = False
Set rs = New ADODB.Recordset
Set cn = New ADODB.Connection
cn.ConnectionString = strConnection & App.Path & "Membership.mdb"
cn.Open
strSQL = "SELECT * FROM tbl_Membership"
strSQL = strSQL & " WHERE Memb_ID = " & MembersID
rs.Open strSQL, cn, adOpenForwardOnly, adLockPessimistic, adCmdText
frmMembershipDetails.txtMembership(0).Text = rs!First_Name & ""
frmMembershipDetails.txtMembership(1).Text = rs!Middle_Name & ""
frmMembershipDetails.txtMembership(2).Text = rs!Surname & ""
frmMembershipDetails.txtMembership(3).Text = rs!Street & ""
frmMembershipDetails.txtMembership(4).Text = rs!Town & ""
frmMembershipDetails.txtMembership(5).Text = rs!City & ""
frmMembershipDetails.txtMembership(6).Text = rs!County & ""
frmMembershipDetails.txtMembership(7).Text = rs!Post_Code & ""
frmMembershipDetails.txtMembership(8).Text = rs!Home_Tel & ""
frmMembershipDetails.txtMembership(9).Text = rs!Mobile_Tel & ""
frmMembershipDetails.txtMembership(10).Text = rs!Email & ""
frmMembershipDetails.txtMembership(11).Text = rs!DOB & ""
frmMembershipDetails.txtMembership(12).Text = rs!Date_Joined & ""
frmMembershipDetails.txtMembership(13).Text = rs!Insurance_Due & ""
frmMembershipDetails.txtMembership(14).Text = rs!Grade & ""
frmMembershipDetails.txtMembership(15).Text = rs!Last_Graded & ""
frmMembershipDetails.txtMembership(16).Text = rs!Membership_Number & ""
frmMembershipDetails.txtMembership(17).Text = rs!Occupation & ""
frmMembershipDetails.txtMembership(18).Text = rs!Notes & ""
'reset boolean for txt changed
blnUpdate = False
rs.Close
Set rs = Nothing
cn.Close
Set cn = Nothing
frmMembershipDetails.cmdClear.Enabled = True
frmMembershipDetails.cmdPrint.Enabled = True
frmMembershipDetails.cmdUpdate.Enabled = True
'frmMembershipDetails.Visible = True
LockWindowUpdate 0&
Exit Sub
Stop TextBox Flickering Form Resize
Hi
can anyone suguest any idea or may have some example code on how I can stop Flickering of a textbox when resizeing a form.
Any help whould be greatfull.
Simple Moving Of A Picturebox Without Flickering
Here is what i want:
i have a form and a picturebox when the users holds down the mouse on the picturebox the picturebox must move allong with the mouse without flickering, so this is what i have:
Code:
Dim OrX As Single 'original x
Dim OrY As Single 'original y
Dim MsD As Boolean 'check wether mousebutton is pressed
Private Sub Picture1_MouseDown(Button As Integer, Shift As Integer, X As Single, Y As Single)
MsD = True
OrX = X
OrY = Y
End Sub
Private Sub Picture1_MouseMove(Button As Integer, Shift As Integer, X As Single, Y As Single)
If MsD = True Then
Picture1.Left = Picture1.Left + (X - OrX)
Picture1.Top = Picture1.Top + (Y - OrY)
OrX = X
OrY = Y
Refresh
End If
End Sub
Private Sub Picture1_MouseUp(Button As Integer, Shift As Integer, X As Single, Y As Single)
MsD = False
End Sub
i can move it now (well a little bit anyway) but it flickers like hell,
PS: picture1.move flickers just as much
Solution To Non Flickering Resizing/moving Of All Types Of Controls
Hi.
Some time ago i posted a question about the following subject:
"how can i make a control appear to slide in the screen without seeing it flickering like hell or making it look stupid"
well, not needed to slide in, but just an animation would be fine.
I bumped the subject a couple of times but no reaction at all. After a lot of trying i found a solution that worked quite well. Any reactions?
Hope it works fine,
Greets, Dee.
In this example i explain how to resize a form, and make it look like it is
animated. It starts to change dimensions fast and then slowing down after some time. The slow down effect i achieved by implementing a simple powerfunction.
---------------
set timer at interval=1 en standard enabled=false
Code:
dim newformwidth as double
Public Sub TMRAnimatie_Timer()
me.Width = newformwidth
End Sub
Code:
Public Function CollapseSideScreen()
Dim widthnow As Double
Dim widthfinal As Double
Dim widthdiff As Double
Dim actiontime As Double
Dim starttime As Double
Dim endtime As Double
Dim passedtime As Double
widthnow = me.Width
widthfinal = 1000 'insert wished width value here
actiontime = 1.2 'seconds , can be replaced
starttime = Timer
endtime = starttime + actiontime
widthdiff = widthfinal - widthnow
animationchange = False
TMRAnimatie.Enabled = True
While Timer < endtime
DoEvents
passedtime = Timer - starttime
newformwidth = widthnow + widthdiff * (1 - Exp(-passedtime / (actiontime / 10)))
Wend
TMRAnimatie.Enabled = False 'stop timer
TMRAnimatie_Timer 'call timer one last time or you might miss last change made within while statement
End Function
Some extra explanation:
newformwidth = widthnow + widthdiff * (1 - Exp(-passedtime / (actiontime / 10)))
sets the width at the previous width + the difference old-new times a factor 0-1
the function 0-1 is basically:
(1-e^(-t/C)) with in this case C = actiontime/10 because it makes sure that 99% of the change is done in around 80% of the time
Try plotting the fuction with t variable and a certain C, you will see that the function rises quickly to 1, and then slowly dims out till it reaches one eventually.
...........
Why not do it with just a timer?
This makes it impossible to control the actual speed for different controls to change/resize. This because timers are very inaccurate
Why not do it within the while - wend function?
Because of the doevents in the function you will see that the resizing will go extremely weird. You will also notice the screen will flicker. This is, i think, because there are too many changes. The screen simply cant refresh the UI fast enough.
Leaving the doevents solves the problem. A very accurate resizing can be seen. However... You cannot do anything else at that moment till the progress is done.
I hope this was somehow valuable
Stop The WebBrowser From Downloading The Graphics, ...
How can I stop the WebBrowser from downloading the graphics, Java classes, etc? I just need the text but as a Document object so I can eazy access its tags.
Or, which is the best way to get the "Document" object from a URL so I can access the TAGS? Can this be done without using the webbrowser control?
If I use the Inet control to get the source how can I build the Document object?
ThanX.
Moving Graphics
I've got a map created and would like to make it scrollable- it uses 32 x 32 tiles. Suggestions?
Also, I want to be able to put items and equipment in a scrollable(left to right) box created through DX to get rounded corners, etc, etc. The difficulty brought in by each is that they both use multiple layers, and I've never had to deal with moving the surface.
So, here's the idea:
I've got a map, 18 x 15 tiles. Each tile is 32 x 32, so are the sprites, etc. I want to center the player on the map and have the map move instead of the player, like I have it. However, I've also got NPCs and items in place, and the game is online based-if I make this change to it, it'll take a bit of recoding, but that's not such a big deal.
Any help would be appreciated.
Help On Bitblt And Moving Graphics. Plz Look.
what I am doing is moving a big image which is the background and I want to have a car in the middle of the screen so when i press up the image goes down and the car stays still.
Any ideas on how to do this with little flicker as possible???
Thx in advance
Moving Graphics {not Resolved}
Hello
How can i make a graphic or a shape consists of some circles and lines being able for moving on the form, check the attachment
i hope any one can help
thanks alot for advice
Egyptian Man
Edited by - khaledagwa on 6/22/2004 5:12:24 AM
Newbie: Basic Graphics And Moving
So far i only know the basics about VB6, i havent tryed anything related to graphics before.
What i wonder is just how i can make a 2D picture to move to the location of where iam clicking. No animations, just a standard 2d pic moving slowly to the location of my click. Any1 have any ideas???(iam sure you have)
Stop Txt Moving
can any1 tell me how u stop txt that is in side a pic box moving ever thing u click in the box
I Need To STOP Image FLICKERING! The Regular Image Control Flickers
So heres the problem....
I'm working on a skinning module for my software and i have menu pages,, on each page i move image controls around so that I can have multiple pages of buttons....
When I click the different menu buttons the images flicker, its not so bad on a fast computer, but on slower computers it really shows.
Does anyone have ANY idea of how to stop this flickering? Ive tried putting the controls on a picturebox / frame, and making the frame invisible/moving it off the screen, but that doesnt work... no matter what I do the images always flicker.
I would use the picturebox because that doesnt flicker,, but it doesnt support transparencies and theres always a box around the image.
Any ideas would be greatly appreciated.
Thanks!
Pic Box, Object To Stop Moving
what im trying to do is make it so that i have one bit picture box and a pong design interface inside it(this is a final assignment im making a variation of pong) anywho what im trying to do(and tryed everything i've thought of) is to get it so that when you drag the padel down it cannot pass the line at the top or the bottom, and both these lines are drawn, not made at runtime. thanks for help
also after you hit the line you cannot go down or up further then the line, and you can continue moving inside the two lines
Trying To Stop A Form Moving
hi, i am making a program that has docking forms onto the main mdi form. I am trying to make it so that the forms can be docked and undocked. I have so far made a timer that keeps a form in its position all the time but when the user tries to drag the form it flashes and such and then returns to the position wheras i don't want it to move at all, is there any way i can subclass it to stop it moving?
How Do I Make A Shape Stop Moving?
I have a shape(Shape1) that you can move with the arrow keys....how do i make the Shape1 cease to move when a certain event happens, even though the arrow keys are still pressed?
thanks for any help!
ListView - Stop Icons Moving
Hi,
I'm using a listview control in the Icon mode, to display a control panel for my application. The only problem is that when a user clicks an icon, when you move the mouse it moves the icon as well.
Is there any way to stop the user moving the icon?
Stop Maximized Form From Moving
I am using a picturebox as a container to act as a mdiparent because only 1 midparent is allowed when I need 2. When I maximize a "child" form, the title bar is still visible which enable the user to move the max form. I get an error when I set moveable=false during runtime. Is there any way to stop the maxed form from moving? Thanks.
Trying To Stop Moving Past Last Record
I am writing a database with a number of tables with forms atttached to each table. I have placed navigation buttons on each form to move to first, last, next, previous. I have set up the code associated with the buttons as "public sub" so it is available for each form to use.
This was working OK except that when I used the NEXT button at the last record it would open a new blank record & keep opening a new blnak record on each click.
To over overcome this I put in an If statement to check if it had moved to a new record. To do this I used the following:
If Me!NewRecord Then ..... etc
Now I get an error "Invalid use of Me key word" I suspect it is because I am using ME in a public sub
How do I overcome the problem of moving passed the last record and still have the coding available to all forms?
The Code is below.
Thnaks for any help.
Public Sub Next_Record_Click()
On Error GoTo Err_Next_Record_Click
DoCmd.GoToRecord , , acNext
If Me!NewRecord Then
' If new record move back to previous
DoCmd.GoToRecord , , acNext
' Send message
MsgBox "This is the last record", , "No More Records"
End If
Exit_Next_Record_Click:
Exit Sub
Err_Next_Record_Click:
MsgBox Err.Description
Resume Exit_Next_Record_Click
End Sub
Stop User Moving The Chart Around In MsChart
VB6 SP6
I am using MsChart. I need to allow selections but when this is set to True users can click on the chart and move the plot area around the unplotted area.
Anybody know a way to avoid this
Thanks
Stop Item Dragging/moving In ListView
Is there any way you can stop the user from moving the item position in a listview?? I need them to stay the same as i added them first by code, with them being fixed for the user and not allowing any movement of item position!
thanks!
Stop A Moving Image Drawing Over Other Lines...
I have the following code which moves a little image control across the form, but what happens when it moves across slowly is it sort of half draws over lines that I have on the form....how can i get it so that it doesnt draw over the other lines and leaves them intact....so that it doesnt leave this kind of trail.....
VB Code:
Private Sub Timer1_Timer()If Image2.Left < 9240 Then Image2.Left = Image2.Left + 1'only move the picture one space over if it isnt alreadt at the desired locationEnd IfEnd Sub
How To Stop Cursor Keys Moving Focus ?
I am writing a program where an object can be moved round the screen. I first did this using command buttons and then wanted to add the option of using the keyboard cursor keys.
KeyAscii and/or KeyCode worked for most keys but not the cursor keys which didn't seem to generate any events. I got something working using an API call (GetAsyncKeyState).
The bit which still bugs me is that when the user presses the cursor keys, as well as moving the on-screen object, it also moves focus round the various command buttons.
Can anyone suggest how to stop this happening ?
How To Stop The Shape From Flickering(A Shape Control Is Used)
Hello Every1,
I have a peuliar problem for u guys. Follow closely the code given below......
Dim x1 As Single, y1 As Single
Dim draw As Boolean
Private Sub Form_MouseDown(Button As Integer, Shift As Integer, X As Single, Y As Single)
x1 = X
y1 = Y
draw = True
End Sub
Private Sub Form_MouseMove(Button As Integer, Shift As Integer, X As Single, Y As Single)
If draw = True Then
Shape1.Left = x1
Shape1.Top = y1
Shape1.Width = X - x1
Shape1.Height = Y - y1
End If
End Sub
Private Sub Form_MouseUp(Button As Integer, Shift As Integer, X As Single, Y As Single)
draw = False
End Sub
The shape sizes according to our mouse, the only problem is the shape flickers. Can any1 stop that flickering. I'll be really happy if any1 can do it for me. Thank u...
PS: I have tried changing the AutoRedraw & ClipControl options on & off. They dont help...
Making A Label Stop Moving When It Hits A Certain Point[solved]
I have a long Label, it shows text, I want it to scroll slowly, but how do I make it stop at a certain point, If I do
VB Code:
Private Sub tmrAbout2_Timer() DoEvents LblAbout.Top = LblAbout.Top - 10 DoEventsIf LblAbout.Top <= 0 Then tmrAbout2.Enabled = FalseEnd Sub
Then it stops when the top of the label hits the top of the form/frame, I want it to scroll through the top of the frame, Its fine if I dont put an If then but it keeps going forever.
Changing Background Brings On Flickering [RESOLVED=> Bye Bye Flickering]
I've read much in this forum about flickering but as yet haven't found a solution to my specific case.
I use a image control which contains a gif image with transparent background. It stays in a fixed position on a picturebox, and in this picturebox the movement of a complicated geometric structure is simulated by repeated use of the line method inside 2 loops. Between any two consecutive static images I issue a Picturebox.Cls and this is the cause of much flicker, though the intended movement in the picturebox goes smooth like a dream.
Before I try to make my algorithm a little more clever I'd like to know if flickering can be held back by some other means.
Stop Code From Moving On If &"IF&" Statements False [Solved]
hi, i want to verifi the first two boxes before it moves onto the rest of the code so if any of the first two if statements are false it doesnt move onto the rest of the code, any 1 have any ideas?
thx much appreachiated
Private Sub cmdcal_Click()
If cboCars = "" Then MsgBox "Error Msg Here"
If txtdays = "" Then MsgBox "Error Msg Here"
lbltotal = lblPrice * txtdays
lbldeposit = (lbltotal / 100) * 20
lblPay = lbltotal - lbldeposit
End Sub
Code For Moving To The First Blank Cell In A Worksheet; Moving Left,right,up Or Down
I have created an application form as a userform in Excel. I need to send the data entered into my text boxes when the program runs to separate excel cells in a worksheet.
My problem is I can use code that will send the textbox entry to a specific cell eg. If my textbox is named Surname I can say
range("a5").value = surname but if I do that when I run the programme to enter the next record for someone else the first record will be overwritten.
I NEED A CODE LINE THAT WILL TAKE ME TO THE FIRST EMPTY CELL AND ALLOW ME TO MOVE DOWN OR TO THE LEFT OR TO THE RIGHT
Can Someone Help With My Graphics (simple Graphics)
I hope this is the right place to put this, and I just joined so "Hi All".
I am making a computer version of Guess Who? Its just a simple game that I wanted to work on when I needed a break from all my other programming and stuff. The problem I am hacing is I cant create/find graphics for faces. I found this old game here...http://www.4tmedia.com/images/identify.jpg
I was looking to make more than 24 faces, I want some new updated images, more like real people. I am hoping maybe someone knows where I can get faces like this and stuff.
A few requirements....
White background
82x82 size
standard guess who features, glasses, eye color, hari color, hair length, etc.
I am just really crappy with images and image software and could really use the help. I am hoping for more than 24 images so the board can change every game.
Moving Balls To Moving Images??
Please take a look at this as it is related to my question
Thread
is it possible for the create images to be an image type that is already drawn?
Flickering
Im working on a teleprompter program for my video production class and ive got the text scrolling with a label. the only problem is when the label scrolls, i get that classic flickering usually associated with timers. i tried slowing down the timer, and speeding up the movement of the label, but now it just flickers a little slower, and its all choppy. is there a way to get rid of that flickering?
-thanks
End The Flickering!!!
OK so I am definatly a newbie to VB6, and here I am trying to write with it (first program in vb6 ever), and I am having some massive flickering problems . Can you recomend how I might fix that, right now my program moves the "shapes" by changing the tops and lefts of the shapes. What can I do?
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