Whether the identifier denotes an object of user-defined type or a type derived from a user-defined type. Whether the identifier denotes a function or a type derived from a function. The number of arguments to a function. The dollar sign is also a valid identifier in Visual C++.
Known to ancient Egyptians, watercolor painting is one of the oldest art forms. Artists from medieval times used watercolors for the illumination of parchment papers, but during the 16th, 17th and 18th centuries, watercolors were restricted to miniature paintings on card, ivory, parchment or porcelain.
Warnings. 1  Don't use the same brushes for water based paints (watercolor, acrylic, gouache) and oil based paints (oil painting, oil pastels, anything with thinner.) Once a brush has been used with oils once, it's an oils brush. 2  Label the handle with tape so you know the difference.. Dip your brush into the watercolor liquid on your palette, and lift a small amount of color onto your brush. Next, paint this inside the shape drawn on your paper. If the paint is too thick, and stays in one place, dip your brush into the water again and add a little more water to the paint on the paper.