Yeah... it's been a while I posted anything into this blog. I've been doing a lot of different things on CF (one of which is SDF on OpenNETCF.org) which I am going to tell you about later on...

Meanwhile, as an incentive to the loyal and new readers I am posting the function for drawing gradient colors in CF. As you know GradientBrush is not supported in CF and one of my recent projects required filling a background with a gradient colors, so I've put together the following function:

public static void DrawGradientVertical(Graphics g, Color color1, Color color2, Rectangle rect, int percent)
  {
   Pen pen = null;

   //calculate half color
   Color halfColor = Color.FromArgb((color1.R + color2.R) / 2, (color1.G + color2.G) / 2, (color1.B + color2.B) / 2);
   
   int R_color = color1.R;
   int G_color = color1.G;
   int B_color = color1.B;

   int R_step = 0;
   int G_step = 0;
   int B_step = 0;

   int sep1 = rect.Height / 2;
   int sep2 = rect.Height / 2;

   //calculate steps for changing between color1 and halfColor
   if (rect.Height > 0) //avoid 0 division
   {
    sep1 = rect.Height * percent / 100;
    R_step = (halfColor.R - color1.R) / sep1;
    G_step = (halfColor.G - color1.G) / sep1;
    B_step = (halfColor.B - color1.B) / sep1;
   }
   
   //draw the lines
   for(int i=0;i<sep1;i++)
   {
    pen = new Pen(Color.FromArgb(R_color,G_color,B_color));
    g.DrawLine(pen, rect.X, rect.Top + i, rect.Right, rect.Top + i);
    R_color = R_color+R_step;
    G_color = G_color+G_step;
    B_color = B_color+B_step;
   }

   //calculate steps for changing between halfColor and color2
   if (rect.Height > 0) //avoid 0 division
   {
    sep2 = rect.Height - sep1;
    R_step = (color2.R - halfColor.R) / sep2;
    G_step = (color2.G - halfColor.G) / sep2;
    B_step = (color2.B - halfColor.B) / sep2;
   }

   R_color = halfColor.R;
   G_color = halfColor.G;
   B_color = halfColor.B;

   //draw the lines
   for(int i=sep1;i<rect.Height;i++)
   {
    pen = new Pen(Color.FromArgb(R_color,G_color,B_color));
    g.DrawLine(pen, rect.X, rect.Top + i, rect.Right, rect.Top + i);
    R_color = R_color+R_step;
    G_color = G_color+G_step;
    B_color = B_color+B_step;
   }