Screencast video (1 Viewer)

[Michael.K]

So i have timer which ticks with 100ms interval. I need change image in ImageControl.
Now I have the following:

[SkinControlAttribute(20)]
protected GUIImage videoImage = null;
...
  public override void onStartVideo()
        {
            timer = new System.Timers.Timer(100);
            timer.Elapsed += new ElapsedEventHandler(_timer_Elapsed);
            timer.Enabled = true; // Enable it
        }
void _timer_Elapsed(object sender, ElapsedEventArgs e)
        {
            PixelFormat format = PixelFormat.Format32bppRgb;
            Bitmap b =  getFrame(format);
            if(tempbm==null) return;
                GUITextureManager.ReleaseTexture("[myfirstplugin:video]");
                int res = GUITextureManager.LoadFromMemory(b, "[myfirstplugin:video]",0x00000000, 100, 100);
                chack = !chack;
            }
            _videoImage.FileName = "";
            _videoImage.FileName = "[myfirstplugin:video]";
        }

But when image updating it very blink, about 3-5 times in second.
How can I solve this problem? Help me please.

 

[Michael.K]

May be possible to update the image without using GUITextureManageror use GUIImage.MemoryImage and then display it? Surely no one knows how to quickly update the image on GUIImage?

 

[Michael.K]

Now if save picture in hard disk and it displing but blinking, but if I load picture into GUITextureManager it does non happen(picture don't show). Who knows why this happens?

        public override void onStartVideo()
        {
            timer = new System.Timers.Timer(100);
            timer.Elapsed += new ElapsedEventHandler(_timer_Elapsed);
            timer.Enabled = true; // Enable it
        }
 
        void _timer_Elapsed(object sender, ElapsedEventArgs e)
        {
            timer.Stop();
            PixelFormat format = PixelFormat.Undefined;
            skypeBitmap = getFrame(format); // return Bitmap 640x480
            if (skypeBitmap == null)
            {
                timer.Start();
                return;
            }
            try
            {
                _oldTextureName = _textureName;
                bmskypeCrop = skypeBitmap.Clone(new Rectangle(0, 0, 640, 480), skypeBitmap.PixelFormat);
                // bmskypeCrop.Save(@"C:\" + sFrame.ToString() + ".png");
                _textureName = BuildMemoryImage(bmskypeCrop,"video" + sFrame);
                _videoImage.SetFileName(_textureName);
                // _videoImage.SetFileName(@"C:\" + sFrame.ToString() + ".png");
                // GUITextureManager.ReleaseTexture(@"C:\" + (sFrame - 1).ToString() + ".png");
                GUITextureManager.ReleaseTexture(_oldTextureName);
                    //if (File.Exists(@"C:\" + sFrame.ToString() + ".png"))
                    //    File.Delete(@"C:\" + sFrame.ToString() + ".png");
                _videoImage.Render(0f);
            }
            catch (Exception)
            {   
            }
            sFrame++;
            timer.Start();
        }
 
        private string BuildMemoryImage(Bitmap image,string identifier)
        {
            string str = string.Format("MyPlugin:[{0}]", identifier);
            try
            {
                GUITextureManager.LoadFromMemory(image, str, 0L,640,480);
            }
            catch(Exception)
            {
             
            }
            return str;
        }

 

[Michael.K]

I has understood what the problem is. I change my code on the following:

 public override void onStartVideo()
        {
            timer = new System.Timers.Timer(40);
            timer.Elapsed += new ElapsedEventHandler(_timer_Elapsed);
            timer.Enabled = true; // Enable it
        }
 
        void _timer_Elapsed(object sender, ElapsedEventArgs e)
        {
            timer.Stop();
            PixelFormat format = PixelFormat.Format32bppPArgb;
            skypeBitmap = getFrame(format); // return Bitmap 640x480
            if (skypeBitmap == null)
            {
                timer.Start();
                return;
            }
            try
            {
                _oldTextureName = _textureName;
                _textureName = BuildMemoryImage(skypeBitmap, "video" + sFrame);
                _videoImage.SetFileName(_textureName);
                GUITextureManager.ReleaseTexture(_oldTextureName);
                _videoImage.UpdateLayout();
            }
            catch (Exception)
            {
 
            }
            sFrame++;
            timer.Start();
        }
 
        private string BuildMemoryImage(Bitmap image, string identifier)
        {
            string str = string.Format("[myfirstplugin:{0}]", identifier);
            try
            {
                GUITextureManager.LoadFromMemory(image, str, 0L, 640, 480);
            }
            catch (Exception)
            {
 
            }
            return str;
        }

How i undestend problem was in string str = string.Format("[myfirstplugin:{0}]", identifier);
and _videoImage.UpdateLayout();