This control is a C# implementation of the well known water effect. There are already two implementations of this algorithm on CodeProject:
Really cool visual FX - a C++ variant - and
a OpenGL Interactive water effect.
The algorithm itself is well described here and
How to use it
The control itself is derived from
System.Windows.Forms.Panel. So all you have to do is to place a standard
PictureBox control onto your form and change the type of this control to
Then adjust the image source property as follows:
waterControl.ImageBitmap = ((System.Drawing.Bitmap)
Now run the program, and move the mouse over the image while the left button is pressed. The effect is clearly better than the
picture above shows.