doublebuffered

问题 I am using surface view to show some graphics, the problem is that there is a flickering effect when I am moving the figure in the screen, I understand that this is due to double buffering problem, even though I went through many posts, I am unable to fix the problem, please take a look at my code and help me get this fixed. public class CustomSurfaceView extends SurfaceView implements Runnable{ Thread mThread = null; SurfaceHolder mSurfaceHolder; volatile boolean mRunning = false; Bitmap

问题 I have main Panel and Auto Scroll=true, and all controls are placed on main panel. Functionality works fine but when I click on any control or scroll down or up so it start flickering for a second each time I click or Scroll, I also set DoubleBuffered = true; but it is not working for me. could any body please suggest me solution or new code which can help me I alrasy spent 2 days on this problem. thanks in advance. 回答1: You can try to put this into your forms class: private const int WM

问题 wondered if anyone could point me in the right directon, i have developed a pong game and it needs double buffering due to flickering. Iv tryed some of the post on here to try and make it work, but im still a beginner with the swing awt suff, any help would be amazing thanks. public class PongPanel extends JPanel implements Runnable { private int screenWidth = 500; private int screenHeight = 300; private boolean isPaused = false; private boolean isGameOver = false; private int playToPoints =

问题 wondered if anyone could point me in the right directon, i have developed a pong game and it needs double buffering due to flickering. Iv tryed some of the post on here to try and make it work, but im still a beginner with the swing awt suff, any help would be amazing thanks. public class PongPanel extends JPanel implements Runnable { private int screenWidth = 500; private int screenHeight = 300; private boolean isPaused = false; private boolean isGameOver = false; private int playToPoints =

问题 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 low-tech and crappy, and on my new machine I don't notice any difference in performance. Is doublebuffering problematic on older machines, VNC, Remote Desktop or

问题 I have an issue with a Windows Forms project, which I can reproduce only on Windows 10 machine (on Windows 7 it does work). I think that I could isolate the source of issue, namely, if I switch double buffering on and set FormBorderStyle to None , then if I resize the form e.g. in an event handler, the parts of background and some controls being not redrawn. It is also so, that sometimes it works(one time from five). Not redrawn it looks so(often a bit different): and so it should looks like:

问题 I found this code of double buffering on internet but it has no explaination. I am a little confused in this code. Why is the Image "i" used? What is its use if it is to be used once? Why are we assigning changing color to Foreground color,when we already have set color? What is g.drawImage() method doing? Here is the code: public void update(Graphics g) { if(i==null) { i=createImage(getWidth(), getHeight()); graph=i.getGraphics(); } graph.setColor(getBackground()); graph.fillRect(0, 0,

问题 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? 回答1: From what I remember, no, double buffering does NOT carry over to child controls. You need to set it for each one individually. I'll google it and see if I can find a source to prove / disprove this... EDIT: Found this:

问题 Summarization: Say that I have a TForm and two panels. The panels are aligned alTop and alClient. The alClient panel contains a TPaintBox, whose OnPaint involve drawing codes. The default value of DoubleBuffered on the components are false. During the drawing process, flicker is obvious because the form, the panels all paint their background. Because the form is covered by the panels, it is probably fine to intercept its WM_ERASEBKGND message. If not, one could see flickering on the panels,

问题 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 problems on Windows, while everything worked fine on Linux. I solved my problem calling SetDoubleBuffered(True) in the __init__ method. The strange thing is that now