public static Color[] GradientColors(Color startColor, Color endColor, int count)
{
count = Math.Max(count, 2);
Bitmap image = new Bitmap(1024, 3);
Graphics g = image.Graphics();
Brush br = new LinearGradientBrush(image.Bounds(), startColor, endColor, 0.0F);
g.FillRectangle(br, image.Bounds());
br.Dispose();
g.Dispose();
Color[] colors = new Color[count];
colors[0] = startColor;
colors[count - 1] = endColor;
if (count > 2)
{
FastBitmap fb = new FastBitmap(image);
fb.Lock();
for (int i = 1; i < count - 1; i++)
{
colors[i] = fb.GetPixel(image.Width * i / (count - 1), 1);
}
fb.Unlock();
fb.Dispose();
}
image.Dispose();
return(colors);
}
/// <summary>
/// Locks this bitmap into memory and returns a FastBitmap that can be used to manipulate its pixels
/// </summary>
/// <param name="bitmap">The bitmap to lock</param>
/// <param name="lockFormat">The underlying pixel format to use when locking the bitmap</param>
/// <returns>A locked FastBitmap</returns>
public static FastBitmap FastLock(this Bitmap bitmap, FastBitmapLockFormat lockFormat)
{
var fast = new FastBitmap(bitmap);
fast.Lock(lockFormat);
return(fast);
}
/// <summary>
/// Locks this bitmap into memory and returns a FastBitmap that can be used to manipulate its pixels
/// </summary>
/// <param name="bitmap">The bitmap to lock</param>
/// <returns>A locked FastBitmap</returns>
public static FastBitmap FastLock(this Bitmap bitmap)
{
var fast = new FastBitmap(bitmap);
fast.Lock();
return(fast);
}