---
title: "BitmapData..::.Stride Property "
canonical: https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_BitmapData_Stride.htm
product: "Graphics Mill 5.5 for .NET"
---

This documentation is for the old version. [Go to the latest Graphics Mill docs](https://www.graphicsmill.com/docs/gm/)

# BitmapData.Stride Property 
 
Returns the bitmap data stride (scan line width in bytes).
 
**Namespace:** [Aurigma.GraphicsMill](https://www.graphicsmill.com/docs/gm5/N_Aurigma_GraphicsMill.htm.md)
 **Assembly:** Aurigma.GraphicsMill (in Aurigma.GraphicsMill.dll)
 
## Syntax
  
```
Public ReadOnly Property Stride As Integer
```
 
```csharp
public int Stride { get; }
```
 
### Property Value
Scan line width in bytes.
 
## Remarks
 Since [Width](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_BitmapData_Width.htm.md) property specifies number of pixels in single scan line, this property contains number of bytes in a scan line. As scan line may be aligned on four-bytes boundary, stride may differ from bitmap data width multiplied on number of bytes per pixel. That's why you should use this property to move to the same position on the next row instead of any other methods.
 
## Examples
  
```csharp
Aurigma.GraphicsMill.BitmapData bitmapData = bitmap.LockBits();

unsafe
{
    byte* pos;
    byte* scan0 = (byte*)(bitmapData.Scan0.ToPointer());
    int stride = bitmapData.Stride;

    int widthInBytes = bitmapData.Width * bitmapData.BitsPerPixel / 8;
    int height = bitmapData.Height;

    for (int j = 0; j < height; j++)
    {
        pos = scan0 + stride * j;
        for (int i = 0; i < widthInBytes; i++)
        {
            *pos = (byte)(255 - *pos);
            pos++;
        }
    }
}

bitmap.UnlockBits(bitmapData);
```
   
## See Also

### Reference

- [BitmapData Class](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_BitmapData.htm.md)
- [Aurigma.GraphicsMill Namespace](https://www.graphicsmill.com/docs/gm5/N_Aurigma_GraphicsMill.htm.md)