8.3 Function list by category

What follows is a listing of the available functions, grouped by category. For each function there is a reference to the page where you can find the function.

Initialization

Initialization of the graphics screen.

Name Description Page
____________________________________________________________________________

ClearDevice: Empty the graphics screen 205
CloseGraph: Finish drawing session, return to text mode 205
DetectGraph: Detect graphical modes 206
GetAspectRatio: Get aspect ratio of screen 208
GetModeRange: Get range of valid modes for current driver 211
GraphDefaults: Set defaults 214
GetDriverName: Return name of graphical driver 209
GetGraphMode: Return current or last used graphics mode 209
GetMaxMode: Get maximum mode for current driver 210
GetModeName: Get name of current mode 211
GraphErrorMsg: String representation of graphical error 214
GraphResult: Result of last drawing operation 214
InitGraph: Initialize graphics drivers 215
InstallUserDriver: Install a new driver 216
RegisterBGIDriver: Register a new driver 220
RestoreCRTMode: Go back to text mode 220
SetGraphBufSize: Set buffer size for graphical operations 223
SetGraphMode: Set graphical mode 223

screen management

General drawing screen management functions.

Name Description Page
____________________________________________________________________________

ClearViewPort: Clear the current viewport 205
GetImage: Copy image from screen to memory 210
GetMaxX: Get maximum X coordinate 211
GetMaxY: Get maximum Y coordinate 211
GetX: Get current X position 213
GetY: Get current Y position 213
ImageSize: Get size of selected image 215
GetViewSettings: Get current viewport settings 213
PutImage: Copy image from memory to screen 219
SetActivePage: Set active video page 221
SetAspectRatio: Set aspect ratio for drawing routines 221
SetViewPort: Set current viewport 227
SetVisualPage: Set visual page 228
SetWriteMode: Set write mode for screen operations 228

Color management

All functions related to color management.

Name Description Page
____________________________________________________________________________

GetBkColor: Get current background color 208
GetColor: Get current foreground color 208
GetDefaultPalette: Get default palette entries 208
GetMaxColor: Get maximum valid color 210
GetPaletteSize: Get size of palette for current mode 212
GetPixel: Get color of selected pixel 212
GetPalette: Get palette entry 212
SetAllPallette: Set all colors in palette 221
SetBkColor: Set background color 222
SetColor: Set foreground color 222
SetPalette: Set palette entry 224
SetRGBPalette: Set palette entry with RGB values 225

Drawing primitives

Functions for simple drawing.

Name Description Page
____________________________________________________________________________

Arc: Draw an arc 204
Circle: Draw a complete circle 205
DrawPoly: Draw a polygone with N points 206
Ellipse: Draw an ellipse 206
GetArcCoords: Get arc coordinates 207
GetLineSettings: Get current line drawing settings 210
Line: Draw line between 2 points 216
LineRel: Draw line relative to current position 217
LineTo: Draw line from current position to absolute position 217
MoveRel: Move cursor relative to current position 217
MoveTo: Move cursor to absolute position 218
PieSlice: Draw a pie slice 218
PutPixel: Draw 1 pixel 219
Rectangle: Draw a non-filled rectangle 219
Sector: Draw a sector 220
SetLineStyle: Set current line drawing style 224

Filled drawings

Functions for drawing filled regions.

Name Description Page
____________________________________________________________________________

Bar3D: Draw a filled 3D-style bar 204
Bar: Draw a filled rectangle 204
FloodFill: Fill starting from coordinate 207
FillEllipse: Draw a filled ellipse 206
FillPoly: Draw a filled polygone 207
GetFillPattern: Get current fill pattern 209
GetFillSettings: Get current fill settings 209
SetFillPattern: Set current fill pattern 222
SetFillStyle: Set current fill settings 222

Text and font handling

Functions to set texts on the screen.

Name Description Page
____________________________________________________________________________

GetTextSettings: Get current text settings 213
InstallUserFont: Install a new font 216
OutText: Write text at current cursor position 218
OutTextXY: Write text at coordinates X,Y 218
RegisterBGIFont: Register a new font 220
SetTextJustify: Set text justification 225
SetTextStyle: Set text style 225
SetUserCharSize: Set text size 227
TextHeight: Calculate height of text 228
TextWidth: Calculate width of text 229

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