GDI+: unhandled exception when drawing bitmap

GDI+: unhandled exception when drawing bitmap

By : sidxz
Date : November 24 2020, 05:44 AM
around this issue There are several things wrong here:
Jpeg files are complex files containing compressed data. You are reading the entire file in, and treating it as if it was a basic bitmap. That simply can not possibly work (it's similar to putting a CD on a old-fashioned vinyl grammophone, and wondering why it's not making any/the right sound). The stride for a bitmap is the distance in bytes between one line of pixels and the next. I don't believe, even if the jpeg data is correct, that your image will have the pixelformat PixelFormat8bppIndexed.
code :

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Unhandled exception (nvoglv32.dll) during drawing (rift)

Unhandled exception (nvoglv32.dll) during drawing (rift)

By : Bahaeddine Hilali
Date : March 29 2020, 07:55 AM
I hope this helps you . (Edited)
I thought the problem was in NULL being passed as indices parameter to glDrawElements() here:
code :
 glDrawElements(elementType, elements * verticesPerElement,
                GL_UNSIGNED_INT, (void*) 0);
Unhandled JS Exception: undefined is not an object (evaluating 'a.coords.latitude')', reason: 'Unhandled JS Exception: u

Unhandled JS Exception: undefined is not an object (evaluating 'a.coords.latitude')', reason: 'Unhandled JS Exception: u

By : Tpebop1
Date : March 29 2020, 07:55 AM
Any of those help Once you convert a JS object to string with JSON.stringify you cannot access the object values with dot or brackets notation
code :
     (position) => {
      var initialPosition = {
                        latitude: position.coords.latitude,
                        longitude: position.coords.longitude,
                    initialRegion: initialPosition
    (error) => alert(JSON.stringify(error)),
    {enableHighAccuracy: true, timeout: 20000, maximumAge: 1000}
OutOfMemory exception thrown while drawing on bitmap

OutOfMemory exception thrown while drawing on bitmap

By : Fengkai Wan
Date : March 29 2020, 07:55 AM
To fix the issue you can do Turns out the OutOfMemory exception was a misnomer, as the actual culprit was an invalid argument being passed to the DrawCurve function. Apparently a Point array containing just 2 objects cannot be processed and an exception was being thrown, confusingly termed "OutOfMemory".
I'm yet to perform more tests and try to recreate the error, but for now, I just inserted a block of code that checked to see that at least 5 points are contained in the Points array before passing it on to the DrawCurve function. Sorted out the mess and the graph came out nice and smooth.
C# System.Drawing.Bitmap throwing Out of Memory Exception when cloning

C# System.Drawing.Bitmap throwing Out of Memory Exception when cloning

By : John
Date : March 29 2020, 07:55 AM
this one helps. I have a Bitmap image which I am trying to clone as below: , Finally I have done below (thanks to Alex K. for the suggestion):
code :
RectangleF rectangleF = new System.Drawing.Rectangle(left, top, right - left + 1, bottom - top);
GraphicsUnit units = GraphicsUnit.Pixel;
RectangleF bmpRectangleF = bmp.GetBounds(ref units);
if (bmpRectangleF.Contains(rectangleF))
    Bitmap bmpCrop = bmp.Clone(rectangleF, bmp.PixelFormat);
    return (Bitmap)(bmpCrop);
Accessing System.Drawing.Bitmap from GTK# Thread throws Object Currently in use elsewhere exception

Accessing System.Drawing.Bitmap from GTK# Thread throws Object Currently in use elsewhere exception

By : pengkai
Date : March 29 2020, 07:55 AM
With these it helps The problem here is that you are processing an image at two places (two threads) on the same time and the image operation in .Net (GDI speaking) does not allow this. Because you did not provided very much information I'm just guessing here.
When manipulating bitmap images in GDI, there are BitmapData behind the scene that needs to be locked and unlocked. This mechanism just make the picture available in memory for read/write. But AFAIK when you lock a BitmapData that is already locked you get a similar exception : System.InvalidOperationException, Bitmap region is already locked.
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