doublebuffered

Double buffering on .NET Compact Framework

由 馋奶兔 提交于 2019-12-12 01:39:16
问题 I was wondering if someone could explain to me how to double buffer a complete form in .net compact framework. I've found examples of double buffering but I can't seem to get any of these to work. We created an application with multiple forms. Some of these forms do take a long time to draw on screen which results in flickering. To give you some insight into our application i'm going to explain one of the forms. This form contains a usercontrol , some panels, textboxes and buttons. The

DoubleBuffering in Java

由 半城伤御伤魂 提交于 2019-12-11 06:55:21
问题 I'm having some trouble implementing DoubleBuffer into my program. Before you faint from the wall of text, you should know that a lot of it is there just in case you need to know. The actual place where I think I'm having problems is in one method. I've recently looked up a tutorial on the gpwiki about double buffering, and decided to try and implement the code they had into the code I have that I'm trying to implement doublebuffer in. I get the following error: "java.lang

c# CF, WinForms and double buffer

由 主宰稳场 提交于 2019-12-11 05:55:46
问题 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! 回答1: You don't need the Form double-buffered, you need the PB to be. That's not so easy to come by in CF. However, you could create your own control, PB is pretty simple. For example: using System; using System.Drawing; using System.Windows.Forms; public class MyPictureBox : Control { private Image mImage;

Flicker when custom drawing on a double buffered TTreeView

由 眉间皱痕 提交于 2019-12-11 03:25:37
问题 When listening to the AdvancedCustomDraw event of a TTreeView event this way: if Stage = cdPrePaint then begin // modify some Sender.Canvas properties and let it draw itself end else if Stage = cdPostPaint then begin // draw 'something extra' using a separate TControlCanvas TControlCanvas.TextOut(SomeRect, 'Hello'); end; ... it seems that when I enable DoubleBuffered the control decides not to copy the 'something extra' to the offscreen buffer. This means that as long as I don't disturb the

Repaint() and double-buffering in java8, bug?

由 帅比萌擦擦* 提交于 2019-12-07 21:46:47
问题 I've been playing with animation in Swing on Java 8 and have encountered some strange behaviour: sometimes content of a component suddenly becomes stale after calling repaint() on some other unrelated component. Below is the code, which reproduces this behaviour for me: import javax.swing.*; import java.awt.*; import java.awt.event.MouseEvent; import java.awt.event.MouseAdapter; public class Crosshair extends JPanel { private int currentMouseX = 0; private int currentMouseY = 0; public

Repaint() and double-buffering in java8, bug?

由 偶尔善良 提交于 2019-12-06 13:26:34
I've been playing with animation in Swing on Java 8 and have encountered some strange behaviour: sometimes content of a component suddenly becomes stale after calling repaint() on some other unrelated component. Below is the code, which reproduces this behaviour for me: import javax.swing.*; import java.awt.*; import java.awt.event.MouseEvent; import java.awt.event.MouseAdapter; public class Crosshair extends JPanel { private int currentMouseX = 0; private int currentMouseY = 0; public Crosshair() { addMouseMotionListener(new MouseAdapter() { @Override public void mouseMoved(MouseEvent e) {

Despite double buffering, the ticker still flickers

由 北城以北 提交于 2019-12-06 03:49:32
问题 Does anyone have an idea about how to get rid of flickering? I researched on SO, the web, and tried out many different things like putting TickerControl into a double buffered Panel a la Double Buffering when not drawing in OnPaint(): why doesn't it work? etc. besides many other things. It still flickers, not on every repaint, but a couple times per second. Also, even after removing the "g.Clear(BackColor)" in OnPaint, something must still be clearing the background, as the text continues to

WinForms - Does the Form.DoubleBuffered property influence controls placed on that form?

由 狂风中的少年 提交于 2019-12-05 10:18:26
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? 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: http://www.devnewsgroups.net/group/microsoft.public.dotnet.framework.windowsforms/topic17173.aspx Just

How to eliminate the flicker on the right edge of TPaintBox (for example when resizing)

由 亡梦爱人 提交于 2019-12-05 05:29:41
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, and flickering on the right edge of the panels when the form is resized, because form paints its

Despite double buffering, the ticker still flickers

由 丶灬走出姿态 提交于 2019-12-04 08:44:16
Does anyone have an idea about how to get rid of flickering? I researched on SO, the web, and tried out many different things like putting TickerControl into a double buffered Panel a la Double Buffering when not drawing in OnPaint(): why doesn't it work? etc. besides many other things. It still flickers, not on every repaint, but a couple times per second. Also, even after removing the "g.Clear(BackColor)" in OnPaint, something must still be clearing the background, as the text continues to scroll readably. Here the relevant parts of my TickerControl class: class TickerControl : Control {
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