doublebuffered

I usually create a pixel format using wglChoosePixelFormatARB() with these arguments (among others): WGL_DOUBLE_BUFFER_ARB = GL_TRUE WGL_SAMPLE_BUFFERS_ARB = GL_TRUE WGL_SAMPLES_ARB = 4 i.e. double buffering on and x4 multisampling. This works just fine. But when I try to turn of the double buffering: WGL_DOUBLE_BUFFER_ARB = GL_FALSE WGL_SAMPLE_BUFFERS_ARB = GL_TRUE WGL_SAMPLES_ARB = 4 The call to wglChoosePixelFormatARB() fails (or rather indicates it didn't create anything) When I effectively turn multisampling off: WGL_DOUBLE_BUFFER_ARB = GL_FALSE WGL_SAMPLE_BUFFERS_ARB = GL_TRUE WGL

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 makes the form resize mush more slowly. Is there any other way to prevent this flickering? Eric I was

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 everything works even if I don't use BufferedPaintDC anymore. I changed my application so that all the

i got a problem with flickering in C# WinForms proyect. I simply made a SlideButton control: this is the code: using System; using System.Collections.Generic; using System.ComponentModel; using System.Drawing; using System.Data; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Forms; using System.Diagnostics; using System.ComponentModel.Design; namespace DELTA.UI.Search { [Designer("System.Windows.Forms.Design.ParentControlDesigner,System.Design", typeof(IDesigner))] public partial class Slide : UserControl { public Boolean IsShown { get { return button

If I need to use double buffering, I need to suppress WM_ERASEBKGND message. I can handle WM_ERASEBKGND and return immediately. But can I set the WNDCLASS / WNDCLASSEX 's hbrBackground to NULL and not handle the WM_ERASEBKGND message? Is this a correct way? Yes, setting hbrBackground to NULL is an appropriate way to avoid implementing a no-op WM_ERASEBKGND handler. When you pass WM_ERASEBKGND on to DefWindowProc , it checks the background brush in the window's class. If there is one, it fills the dirty region with it. If the background brush is null, it does nothing and returns. That's

I'm trying to make an application for linux that writes directly to the framebuffer /dev/fb0. In order to make it double buffered I try to make the virtual screen be double the size of the screen. This is the program I wrote: struct fb_var_screeninfo screeninfo_var; struct fb_fix_screeninfo screeninfo_fixed; unsigned int* screenbuffer; void gfx_init() { fb0 = open("/dev/fb0", O_RDWR); if(fb0 == 0) error("Could not open framebuffer located in /dev/fb0!"); if (ioctl(fb0, FBIOGET_FSCREENINFO, &screeninfo_fixed) == -1) error("Could not retrive fixed screen info!"); if (ioctl(fb0, FBIOGET