Bitmap object is currently in use elsewhere
WebJul 6, 2016 · object is currently in use elsewhere. On the Graphics creation line. Graphics g = Graphics.FromImage(initial); ... You use the "initial" bitmap. The graphics are now pointing at this "initial" object, first time it will succeed to create the graphics but second time (since the 'g' has not been disposed/been released) the "initial" object is ... WebDec 21, 2005 · When i try to re-use brushes or pens over multiple threads, i often get an InvalidOperationException with the message 'object is currently in use elsewhere'. I also tried this by re-using fonts but no problems there. So, it looks like brushes and pens cannot be used in different threads simultaneously. From the docs (my emphasis): Brush Class
Bitmap object is currently in use elsewhere
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WebSep 30, 2016 · In both places where I'm using the Bitmap object, I've used public static member variables. Yet when I run this, I get a System.InvalidOperationException, with Additional Information of "Object is currently in use elsewhere", usually on the SetPixel method, but sometimes on the Refresh method. WebJan 12, 2024 · ' I make a working copy of bm1 Using bm0 As Bitmap = CType(bm1.Clone, Bitmap) Using gr As Graphics = Graphics.FromImage(bm) ' Some image drawing is done here End Using Dim thisLock As New Object SyncLock thisLock ' Replace bm1 with the altered image bm1 = CType(bm0.Clone, Bitmap) End SyncLock End Using
WebBitmap is not thread-safe. Well, it's really is , because when you try to access it from several threads, you will get exception like you do. To do operations like you do on it from multiple threads, use LockBits and UnlockBits methods and work with raw data. WebApr 25, 2015 · Hi! I am trying to use "Task", but I got Error "Object is currently in use elsewhere." Bitmap oriBitmap = new Bitmap(pictureBox1.Image); Task[] tasks = new Task[4 ...
WebMay 15, 2013 · I think you need to do something like this: private void GetImage (out Bitmap img) { img = new Bitmap (pictureBox1.Image); } void worker_DoWork (object sender, DoWorkEventArgs e) { Bitmap img = null; Invoke (new Action ( () => GetImage (out img))); // Do what you want with the bitmap } Accessing a control on a winform will throw …
WebMay 27, 2024 · 2. It is a very unambiguous exception you get when you use a Bitmap object in more than one thread. Clearly the usage of pictureBox1.Image violates that rule, the lock does not accomplish anything since you can't lock PictureBox.OnPaint (). You must deep-copy the bitmap before you start the thread or derive your own class from …
WebAug 26, 2008 · I tried to create a bitmap object from another bitmap object. I get InvalidOperationException -object is currently in use elsewhere. Dim bmp1 as Bitmap Dim bmpdata as BitmapData bmpdata = New BitmapData() bmpdata = bmp.LockBits(New Rectangle(0, 0, bmp.Width, bmp.Height), ImageLockMode.ReadOnly, bmp.PixelFormat) soil food web booksWebNov 9, 2011 · In your save method, get a lock on the image. Save to a memory stream, release the lock and finally save to the disk. (since disk IO is very slow). The lock part is only usefull when needing actual synchronization. Since a Bitmap is not thread safe, you should not access it using multiple threads in the first place and hence, therefore ... soil footing frictionWebNov 15, 2012 · Hello everyone, I created a GUI for plotting values in a picture box. I get values from a serial port every hour, store it in an array then plot those values using the … slt5ctra motorolasolutions.comWebbitmap, method by which a display space (such as a graphics image file) is defined, including the colour of each of its pixels (or bits). In effect, a bitmap is an array of binary … soilfood oyWebOct 23, 2024 · Object already in use elsewhere c# even if using the lock instruction. I try to draw onto bitmap inside a picturebox from multiple tasks. This is a simplified version of … soil food web new zealandWebNov 27, 2009 · My problem is, that I have a program with sveral classes, and I want a bitmap sent from my graphic class to the main class, when an event occurs in the … slt3 a/v wall mountWebOct 5, 2012 · Bitmap Clones -> PictureBox = InvalidOperationException, "Object is currently in use elsewhere", red cross (Windows Forms) 0 How access a set of folders from a list of services without a conflict slt 4g coverage map