doublebuffered

问题 What is the difference between ControlStyles.DoubleBuffer and ControlStyles.OptimizedDoubleBuffer ? ControlStyles.DoubleBuffer does not show up in the Intellisense drop down whereas ControlStyles.OptimizedDoubleBuffer is in fact listed. The MSDN documentation does not make the difference immediately clear (to me at least). 回答1: I found this thread on the subject: DoubleBuffered = true sets both ControlStyles.OptimizedDoubleBuffer AND ControlStyles.AllPaintingInWmPaint. At one point the

问题 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 to true. 回答1: It is protected because DGV inherits the property from Control. And Control.DoubleBuffered is protected. Which makes sense because each derived

问题 I am working on a windows form project and having some problem with UserControl Double Buffering. I created a usercontrol and has a background image, then on top of it I have few radio buttons and labels. Radio buttons and labels are all having transparent background as color. However, when I show and hide the User control, I can see the flickering on those labels and radio buttons that has transparent background. And I tried Me.SetStyle(ControlStyles.DoubleBuffer _ Or ControlStyles

问题 I'm working on a project and I've read up as much as I can on double buffering in java. What I want to do is add a component or panel or something to my JFrame that contains the double buffered surface to draw to. I want to use hardware acceleration if possible, otherwise use regular software renderer. My code looks like this so far: public class JFrameGame extends Game { protected final JFrame frame; protected final GamePanel panel; protected Graphics2D g2; public class GamePanel extends

问题 private void button3_Click(object sender, EventArgs e) { this.DoubleBuffered = true; for (int i = 0; i < 350; i++) { using (Graphics g = this.CreateGraphics() ) { g.Clear(Color.CadetBlue); g.DrawImage(Properties.Resources._256, 100, 100, i-150, i-150); } } } Yet thought I have the DoubleBuffered set to true, the image still flickers. Any ideas what am I doing wrong? Thanks! 回答1: As Neil noted, you don't need to (and shouldn't) create a new Graphics object in each iteration of the loop. These

问题 I have a simple Java JFrame canvas. I am updating what is on the screen every half second or so, and have flickering. I want to implement double buffering to eliminate the flickering, but I am fairly new to Java and am unfamiliar with how to do so. I have found some examples, but not sure how to implement their methods into mine. Below is the basic setup of how I have things now. This is not my exact code- just an example of the basic setup. Thanks for any push in the right direction! public

问题 In the following code i'm using a doubleBuffer to avoid flickering of the image as was suggested in this question of mine import java.awt.Graphics; import java.awt.Image; import java.awt.event.KeyEvent; import java.awt.event.KeyListener; import java.awt.image.BufferedImage; import java.io.IOException; import javax.imageio.ImageIO; import javax.swing.JFrame; import javax.swing.JPanel; public class TestProgram extends JFrame implements KeyListener { private Image doubleBuffer; private Graphics

问题 I'm drawing a bunch of primitives using Java2D on the screen and I'm getting a lot of tearing/flicker. How can I enable/use double-buffering so it draws it off screen then shows the whole thing? 回答1: Check out this tutorial about double buffering: http://gpwiki.org/index.php/Java:Tutorials:Double_Buffering 回答2: Some tips to use buffering effectively as a programmer view and some testing programs are avaliable 回答3: 1) You create a BufferedImage instance. For max performance you want to make

问题 What are the principle differences between using an AWT Frame and a Swing JFrame when implementing your own rendering and not using standard Java GUI components? This is a follow on from a previous question: AWT custom rendering - capture smooth resizes and eliminate resize flicker The typical talking points on Swing vs AWT don't seem to apply because we're only using frames. Heavyweight vs Lightweight goes out the window (and JFrame extends Frame), for example. So which is best, JFrame or

问题 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 other controls, including ListView and DataGridView), but it had no effect. I tried adding the WS_EX_COMPOSITED style to CreateParams , and this helped, but