How to double buffer .NET controls on a form?
How can i set the protected DoubleBuffered property of the controls on a form that are suffering from flicker? ...
doublebuffered
Double buffer child controls in custom control (C#)
I want to double buffer a custom control which contains buttons. I have tried various ways to double buffer the control; SetStyle, BufferedGraphicsContext, and drawing to a bitmap. These all work fine for the custom drawing of the control, but none of them handle drawing the button to a back buffer. How do I achieve this? ...
What is the best way to do a flicker-free animated C# custom control?
Hello community, I am currently creating a custom control that needs to handle animation in a C# project. It is basically a listbox that contains a fixed number of elements that are subject to move. An element (another user control with a background image and a couple of generated labels) can move upwards, downwards or be taken out of t...
How do i enable double-buffering of a control using C# (Window forms)?
How do i enable double-buffering of a control using C# (Window forms)? I have a panelcontrol which i am drawing stuff into and also an owner drawn tabcontrol. Both suffer from flicker, so how to enable double-buffering? ...
Double buffering problem of a derived owner-drawn TabControl?
I have derived a TabControl with the express purpose of enabling double buffering, except nothing is working as expected. Here is the TabControl code: class DoubleBufferedTabControl : TabControl { public DoubleBufferedTabControl() : base() { this.DoubleBuffered = true; this.SetStyle ( ControlStyle...
Why does the DoubleBuffered property default to false on a DataGridView and why is it protected?
We had a performance issue with DataGridViews where the redraw was horridly slow and found the solution Here to create a derived type and enable double buffering on the control. (Derived type is necessary since the DoubleBuffered property is protected) It doesn't seem like there's any drawback to having the DoubleBuffered property set t...
Enabling Double Buffering
I've seen the following code to enable double buffering on a winform: // Activates double buffering this.SetStyle(ControlStyles.DoubleBuffer | ControlStyles.OptimizedDoubleBuffer | ControlStyles.UserPaint | ControlStyles.AllPaintingInWmPaint, true); this.UpdateStyles(); Is this different in any way from simply setting Form.D...
Problems re-drawing an image on a double-buffered control without flickering
Hello, I know that double-buffering is an often-talked subject but no matter how much I searched and tried different approaches, I still can't get the control to re-draw itself without a flicker. Here's my code: using System; using System.Drawing; using System.Windows.Forms; namespace Emgu.UI { public class DoubleBufferedPictureBo...
c# CF, WinForms and double buffer
Hi! I have a CF 2.0 app with a PictureBox on a Form. I want to move the PictureBox with mouse move and I need to add Double Buffer to the form to avoid flickering. How can I do this? Thanks! ...
Double buffering with wxpython
I'm working on an multiplatform application with wxpython and I had flickering problems on windows, while drawing on a Panel. I used to draw on a buffer (wx.Bitmap) during mouse motions events and my OnPaint method was composed of just on line: dc = wx.BufferedPaintDC(self, self.buffer) Pretty standard but still I had flickering probl...
(.NET/C#/winforms) Artifacting when drawing on a Form with Graphics
My objective is to move visual elements drawn using methods of a Graphics object across a Form with no flicker or artifacting (in .NET 3.5). I can successfully achieve flickerless movement by either using automatic double buffering (setting the Form's DoubleBuffered property to true) or implementing a back-buffer myself. I am however s...
How do I double buffer a Panel in C#?
I have a panel that has a roulette wheel on it, and I need to double buffer the panel, so that it stops flickering. Can anyone help me out? ~T-Fox EDIT: Yes, I have tried that. panel1.doublebuffered does not exist, only this.doublebuffered. And I don't need to buffer the Form, just the Panel. ...
Winforms: SuspendLayout/ResumeLayout is not enough?
Hi, I have a library of a few "custom controls". Essentially we have our own buttons, rounder corner panels, and a few groupboxes with some custom paint. Despite the "math" in the OnPaint methods, the controls are pretty standard. Most of the time, all we do is draw the rounded corners and add gradient to the background. We use GDI+ for ...
Flickering child windows with alpha channels
When drawing child controls containing bitmaps with per-pixel alpha channels, we are getting quite a lot of flickering whenever they need to be redrawn. The actual blending is working correctly. I've found a lot of info about reducing flicker (such as this question or this site), but I can't seem to find anything that applies specifica...
Qt & double buffering - are there any neat tricks to capture pixels or manipulate the back buffer?
I'm migrating an application to Qt from MFC. The MFC app would use GDI calls to construct the window (a graph plot, basically). It would draw to a memory bitmap back buffer, and then BitBlt that to the screen. Qt, however, already does double buffering. When the user clicks and drags in the graph, I'd like that section of the window ...
WinForms - Does the Form.DoubleBuffered property influence controls placed on that form?
Form has the DoubleBuffered property (bool, inherited from Control). If this is set to true, are all controls placed on the form drawn to screen in a double buffered fashion by virtue of being on the Form? Or do you need to worry about their own DoubleBuffered properties? ...
Double buffered ListBox
I have a CheckedListBox (WinForms) control (which inherits from ListBox; googling shows that the problem is with ListBox) that is anchored to all four sides of its form. When the form is resized, the ListBox has an ugly flicker. I tried inheriting CheckedListBox and setting DoubleBuffered to true in the ctor (this technique works with ...
Double buffering in BlackBerry?
Do we need to do double buffering in BlackBerry while rendering our paint code or does BlackBerry handle that? If we need to do that ourselves, how do we do that? ...
Why is DoubleBuffered disabled by default?
After creating a new form, I usually perform this ritual: Change the name into something meaningful; Type a Caption; Change the position property (DefaultPosOnly is hardly ever what users expect); Set ShowHint to true; Set DoubleBuffered to true; I've been wondering for a while why the default value is 'False'. To me it just looks ...
Threadsafe double buffered cache (not for graphics) in Java?
I was recently looking for a way to implement a doubly buffered thread-safe cache for regular objects. The need arose because we had some cached data structures that were being hit numerous times for each request and needed to be reloaded from cache from a very large document (1s+ unmarshalling time) and we couldn't afford to let all r...