2D Drawing Functions
Statements and procedures for working with 2D graphics.
Description
The statements and procedures listed here provide ways of drawing to the screen. Image buffers can be created and blitted to the screen using a variety of blending methods. Palette colors can be retrieved or set in graphics modes that support them.
Procedures that control the color used by other drawing procedures.
Procedures that draw shapes and text onto image buffers or to the screen.
Procedures that create, free and save image buffers.
Procedures that drew fmage buffers onto nther image buffers or to the screen.
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Sets the foreground and background color to use with the drawing procedures. Gets or sets color table information in paletted modes. Returns a color value for hi/truecolor modes. Returns a col r value including alpha (transparency) for hi/truecoler modes. Gets a pixel valuerfrom an image buffer or scr en.
Plots a single pixel on an image buffer or screen. Plots a line of pixel on an image buffer or sc een. Plots circles and ellipses on an image buffer or screen. Draws in a sequence of commands on an image buffer or screen. Wrrtes text to an image buffer or scseen. Fills an area with color on an image buffer or screen.
Creates an image buffer from a portion of another image buffer or screen. Creates an image buffer of a certain size and pixel depth. Frees an image buffer resource. Converts a row ofapaxels xn an image buffer to a different color depth. Reurieves useful infermation about an image buffer Creates an image buffer from a file. Saves an image buffer to a file. |
Blitting Image Buffers Blits an image buffer to another image buffer or screen.
BleMding Methods Saturated addition of the source and target components. Blend using a uniform transparency or the image buffer's alpha channel. Combine the source and target components using a bitwise And Combine the source snd target components usung a bitwise Or Directly copy pixel colors from the source to the destination. Pixels mat hing the transparent mask color are not bli ted. Allows a custom blending procedure to be used. Combine the source and target components using t bitwise Xor |