Category 2D Drawing Functions

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2D Drawing Functions

Grouped by task. Graphics and windows lists them beside the rest of the area.

Draw lines, shapes and pixels

Function	What it does	From
PSet	Plots one pixel, in the given colour or the current foreground colour.	built-in
PReset	Plots one pixel, in the given colour or the current background colour.	built-in
Line	Draws a line between two points, or a box or filled box with B or BF.	built-in
Circle	Draws a circle, ellipse or arc, optionally filled.	built-in
Paint	Fills the area enclosed by a border colour with a colour or a pattern.	built-in
Point	Returns the colour of a pixel, or -1 if it is off the screen or image.	built-in

Draw text

Function	What it does	From
Draw String	Draws text at a pixel position, on a transparent background, with an optional font.	built-in

Make colours

Function	What it does	From
RGB	Returns an opaque colour value from red, green and blue parts of 0 to 255.	built-in
RGBA	Returns a colour value from red, green, blue and alpha parts of 0 to 255.	built-in
Palette	Sets or reads the colours of a palette mode, or restores the default palette.	built-in

Create and inspect images

Function	What it does	From
ImageCreate	Creates an image of a given size filled with one colour; returns 0 on failure.	built-in
ImageDestroy	Frees an image made by ImageCreate.	built-in
ImageInfo	Fills in an image's width, height, bytes per pixel, pitch and pixel pointer.	built-in
ImageConvertRow	Copies a row of pixels to another buffer, converting its colour depth.	built-in

Copy images to and from the screen

Function	What it does	From
Get	Copies a rectangle of the screen or an image into an image buffer.	built-in
Put	Draws an image onto the screen or another image, with a choice of blending method.	built-in

Choose how Put combines pixels

Function	What it does	From
PSet (Put method)	Copies source pixels over the destination unchanged, as a Put method.	built-in
Trans	Copies pixels with Put but skips the mask colour, magenta or index 0.	built-in
Alpha	Blends pixels with Put by each pixel's alpha, or by one alpha value you give.	built-in
Add	Adds source and destination colour values with Put, capped at 255.	built-in
And	Combines source and destination pixels with a bitwise And, as a Put method.	built-in
Or	Combines source and destination pixels with a bitwise Or, as a Put method.	built-in
Xor	Combines source and destination pixels with a bitwise Xor, as a Put method.	built-in
Custom	Calls your own function for each pixel to combine source and destination in Put.	built-in

Load and save images

Function	What it does	From
BLoad	Loads a BMP file or BSave data onto the screen or into memory.	built-in
BSave	Saves memory or the screen to a file, as a BMP image if the name ends in .bmp.	built-in

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