Why must “stride” in the System.Drawing.Bitmap constructor be a multiple of 4?

Question

I am writing an application that requires me to take a proprietary bitmap format (an MVTec Halcon HImage) and convert it into a System.Drawing.Bitmap in C#.

The only

Answer 1

Remember stride is different from width. You can have an image that has 111 (8-bit) pixels per line, but each line is stored in memory 112 bytes.

This is done to make efficient use of memory and as @Ian said, it's storing the data in int32.