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c# Programming Glossary: lockbits

How can I iterate through each pixel in a .gif image?

http://stackoverflow.com/questions/1230188/how-can-i-iterate-through-each-pixel-in-a-gif-image

Here goes a complete example with both methods using LockBits and GetPixel . Besides the trust issues with LockBits things.. LockBits and GetPixel . Besides the trust issues with LockBits things can easily get hairy. A great explanation about the issues.. bmp.Height System.Drawing.Imaging.BitmapData bmpData bmp.LockBits rect System.Drawing.Imaging.ImageLockMode.ReadOnly bmp.PixelFormat..

How to manipulate images at pixel level in C#?

http://stackoverflow.com/questions/190385/how-to-manipulate-images-at-pixel-level-in-c

share improve this question If you want speed then LockBits . See here for a good walkthrough by Bob Powell. If you just..

Programmatically get a screenshot of a page

http://stackoverflow.com/questions/1981670/programmatically-get-a-screenshot-of-a-page

will save them as a bitmap image. From there I plan to use LockBits in order to create a list of the five most used colours within..

Adjust the contrast of an image in C# efficiently

http://stackoverflow.com/questions/3115076/adjust-the-contrast-of-an-image-in-c-sharp-efficiently

it up massively by orders of magnitude by using Bitmap.LockBits which returns a BitmapData object that allows access to the.. on the web and on StackOverflow that show how to use LockBits. Bitmap.SetPixel and Bitmap.GetPixel are the slowest methods.. Bitmap NewBitmap Bitmap Image.Clone Update 2 Here is the LockBits version of the AdjustContrast method with a few other speed..

LockBits image rotation method not working?

http://stackoverflow.com/questions/3860030/lockbits-image-rotation-method-not-working

image rotation method not working Hey all. I resorted to using.. rotation method not working Hey all. I resorted to using LockBits for 2d bitmap image rotation after getting fed up with the slow.. float theta BitmapData originalData originalBitmap.LockBits new Rectangle 0 0 originalBitmap.Width originalBitmap.Height..

Getting RGB array from image in C#

http://stackoverflow.com/questions/4747428/getting-rgb-array-from-image-in-c-sharp

if your image is a System.Drawing.Bitmap you can call the LockBits method and this will return a BitmapData structure that contains.. new ArgumentOutOfRangeException h BitmapData data image.LockBits new Rectangle startX startY w h System.Drawing.Imaging.ImageLockMode.ReadOnly..

Create Bitmap from a byte array of pixel data

http://stackoverflow.com/questions/6782489/create-bitmap-from-a-byte-array-of-pixel-data

is the purpose of ImageLockMode.UserInputBuffer in the LockBits method It is very hard to find info about that MSDN do not explain.. to free it. The only time there is a guarantee is between LockBits and UnLockBits. Period. Yeah it can happen but large memory.. only time there is a guarantee is between LockBits and UnLockBits. Period. Yeah it can happen but large memory regions are treated..