VS 2008 Image Flickering As Panel Moves?
Dec 5, 2010
I have quite an annoying problem and I don't know how to fix it. See I have several panels in one of my forms, all with background images. On the start of the application, the form slides down, and when the form reaches a set value, all my panels slide out.The problem is, when the panels are sliding, they flicker furiously! It's really annoying and I'm not sure how to fix the problem. When the panel reaches it's set value and stops moving, the flickering stops. I can only assume it's because of the background image
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Mar 5, 2012
i have developed a windows application whose interface has multiple picture boxes panels with background images for rich look and also a usercontrol which contains a gridview and WPF scrollbar in an element host. All these controls are placed in one panel (this is also having a background image) which is equal to the size of windows form. The reason for placing all these controls in the panel is that the window can be resized, if needed, allowing scrollbars.
Due to these large number of controls in which some of them have transparent backgrounds loaded in a large panel having background image, the window is flickering when moved or any other application's window is moved over it.
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Dec 14, 2009
I have an image that stretches to the size of my form so if the user resizes the form, the image resizes aswell. All works great apart from the constant flickering during the resize of the image.
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May 18, 2010
I have a form where i put controls at runtime. Everything works fine and fast. I also set the doublebuffer property of the controls to true and then there is no flickering at all. But then i proceed to add an image in the background (also during runtime), but then each item i move is flickering even if i remove all the controls and only leave the background image when i move another form it flickers anyway.I put an example below of how im adding the image.
Public originalImage As Image = Nothing
Private Sub Panel2_Paint(ByVal sender As System.Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles Panel2.Paint
If originalImage IsNot Nothing Then
[code]....
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Sep 8, 2010
Right now I'm drawing a small 16x16 image on the title bar of my window. It works nicely, except for an obnoxious flicker that I cant figure out how to get rid of. I'm simply drawing the image like this:
Protected Overrides Sub WndProc(ByRef m As Message)
If m.Msg = WM_SIZE Then
wnd_size = New Size(New Point(CInt(m.LParam)))[code]....
Its repainting the entire title bar each time something is changed on it(click, mouseover the corner buttons, etc), and its during the repaint I get the flicker.
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Aug 30, 2009
I can't tell why when my picture box is to show an image the picture box moves altogether, I feel like it might be moving toward the checkbox which I have controlling the visibility of my picture box. That check box doesn't work as it is supposed to either. Everything else works just fine.
[Code]...
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Jan 14, 2009
I have a forms app that contains a panel. This panel contains an picturebox - the user can then drag the picturebox image.
I need to add an image? in the panel that will not move when the user drags the picturebox image.
This image? needs to be transparent so that the picturebox image can be seen though it when drag occurs.
I've tried drawing directly on to the panel but nothing appears. Perhaps what I am drawing is behind the picturebox?
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Apr 7, 2010
I have a form that is the main form.I don't want it to show when it loads, but when I do Me.Hide() in the Form_Load event, it flickers visible before it hides. Because before I made this form the main form, the one I was using previously didn't flicker.
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Sep 30, 2010
I have a listview (details) with owner draw set to true (so i could make rows alternate in color, looks cooler) which basically contains items and subitems whose texts reflect status info that updates constantly
the problem is, sometimes (if the task runs quickly) the status changes really quickly, and as a result, listview items "flicker" for a millisecond no error, no real problem, its just really annoying and makes the program look less professional.
Is there a way to make the listview not flicker? Or maybe there is a way to make it so that the listview doesn't process too many drawsubitem calls during the same time interval? or maybe there is some customized list view out there that does the trick better?
NOTE: i tried with owner draw set to false. it flickers less, but still flickers. same problem :S
Also NOTE: i am not making cross-thread calls. i have 50 items in the listview and 4 colums, mainly the last 2 subitems change.
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Mar 18, 2009
I have 2 questions:
1) Whenever i change the text in my richtextbox it flickers, as part of my program a richtextbox is changed every 1-2seconds and the flickering can get extreemly annoying, anyone know a way to stop this?
2) Im looking for a function that when passed a line will run through a textfile and remove said name for example in a textfile that contains
One
Two
Three
Four
you could pass removeline("Two")
and it would resave the textfile as
One
Three
Four
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Oct 14, 2009
How do i script a button that moves when ever i put my mouse over it? onMouseover? P.S I'm a beginner, I don't know anything :P
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Nov 5, 2010
As can be seen in the image, the X has 2 branches of moves (arrows), it can capture the Os by leaping on them (marked yellow), and I am not sure how to store such branches of moves/captures.
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Dec 5, 2009
I get no compile/debug errors. When I opened it, and tested it on this site, it doesnt move the mouse to 255, 0, 0 (red). it moves it to 128-128-0.
Try
Dim dc As IntPtr
Dim screencolor As Integer
If myHandle <> IntPtr.Zero Then
dc = GetDC(myHandle)
Dim XPos As Integer = Cursor.Position.X
Dim YPos As Integer = Cursor.Position.Y
[Code] .....
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Apr 23, 2010
I get no compile/debug errors. When I opened it, and tested it on this site, it doesnt move the mouse to 255, 0, 0 (red). it moves it to 128-128-0.
Try
Dim dc As IntPtr
Dim screencolor As Integer
If myHandle <> IntPtr.Zero Then
[code]....
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Aug 10, 2010
I created a custom control that uses a PictureBox and made that PictureBox movable.
I create the control during runtime and the code works just fine. I can move the picturebox, except it can only move within the bounds of the control, which is the same size as the picturebox.
I have a panel that has a label and a picturebox inside of it and I handle the pictureboxes event like so:
[code].....
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Jan 26, 2010
I have a splash screen made and a timer on my form how do i get it to wait 10 seconds before it moves on to frmmail form.?
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Jul 27, 2009
This sub moves a rectangle to the center of the form and when it gets there it moves back to its original location. But something weird has happened and the rectangle still moves, but the boolean values dont change. I tested to see if that part of the code was executed by putting a messagebox where the boolean values are supposed to change and the messagebox didnt appear.
Here is the sub:
Public Sub Start()
Dim Energy As New PictureBox
_IsMoving = True 'here is the boolean values along with some other variables
[CODE]...
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Dec 27, 2010
How to display a images in a panel
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Apr 18, 2012
This project, i m trying to draw a rectangle when mouse enter form1, and when i increase the hscrollbar value, the rectangle extends downward.
My question is how to keep the extended rectangle stay on panel1, when i minimize the form or have other windows cover it for a while, the image is not extended rectangle anymore!
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Jun 6, 2009
I need to center the red panel in the middle of the dark grey panel, when you resize the form the red panel should be in the middle, and the red panel can't be resize, anyone have a code or property to do this?
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Jun 11, 2011
I am manipulating oval objects in a panel on a form, i.e. size, color, location, etc., using trackbars. After each change, I want to put all pixels in the panel into an array for sending to a slave display. Is there an easy, straightforward way to do this other than getpixel?
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Sep 8, 2010
I've got a panel in windows forms (Visual Studio 2008) which has a background image (A book shelf).When scrolling the image flickers and does not redraw so looks awfully - I've tried creating a new object to use double buffering but this has no effect,
[Code]...
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Dec 29, 2011
I have a picturebox inside a panel with scroll bars.
I can zoom in or out the image in the picturebox by changing the PictureBox.Size, and the scrollbars update automatically.
How do I convert coordinates in pixel returned by the PictureBox.MouseMove event into image coordinates when the scrollbars value is not zero and the PictureBox.Size is not the original?
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Feb 26, 2010
I'm developing an application in VB.Net (VS2008) which allows the creation of classroom layouts. The layout is a panel and has child panels (seat objects) the seats are then populated using drag and drop and show a preview of the person sitting there.
I would like to export this panel to a printable format such as jpeg, pdf etc.I have tried using the CopyFromScreen but I can't get this to only output the layout panel. (some of the panel could be off the screen at the time of export)I have also considered using HTML outputting each seat as an absolutely positioned div container. Then printing the HTML page.
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Apr 7, 2012
how to insert a menu strip in a panel..
The thing is, i would like to insert a menu strip in a panel which has got background image(.png)...in other words, i just like to create an awesome menu in my main form....you know the menu strip isn't as good as i want...so something makes a little bit stunning for the users...
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Jun 5, 2012
how you can put an image on a panel, and that image is made semitransparent to see what's in the back.
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Mar 19, 2010
I want to drag drop a picture box in a panel, but the problem with this code is that the picture box doesn't drop where my cursor is. Can someone help me.
[code]...
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May 11, 2009
i need to add background image of panel at certain location on panel.First of fall is it possible
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Mar 15, 2012
I have a patient registration form in my project...in which I have to browse the image of the patient save it in the database and when I need the details of the patient again the uploaded image should also be displayed..
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Aug 13, 2009
Is it possible to capture a panel and save it as an image?
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