Screen Functions
Statements and procedures that work with the graphics display.
Description
These statements and procedures control the graphics capabilities of the FreeBASIC graphics library. Screen modes can be set with varying resolutions and color depths, window events can be handled, and specific OpenGL procedures can be retrieved.
Working with screen modes
Procedures for setting and retrieving information about screen modes.
Working with pages
Procedures that manipulate screen pages.
Working video memory
Procedures that provide direct access to framebuffer memory.
Screen Metrics
Procedures that control the way coordinates are interpreted.

Working with screen modes ScreenList Gets the available fullscreen resolutions. Screen and ScreenRes Sets a new graphics display mode. ScreenInfo Gets information about the system desktop or current display mode. ScreenControl Gets or sets internal graphics library settings. ScreenEvent Gets system events. ScreenGLProc Returns the address of an OpenGL procedure. WindowTitle Sets the running program's window caption. Working with pages Cls Clears the entire screen or viewport. ScreenSet Sets the current work and visible pages. ScreenCopy and PCopy and Flip Copies pixel data from one page to another. ScreenSync Waits for the vertical refresh of the monitor. | Working video memory ScreenPtr Gets the address of the working page's framebuffer. ScreenLock Locks the current working page's framebuffer for direct access. ScreenUnlock Reverts a previous ScreenLock command. Screen Metrics View (Graphics) Sets a clipping region for all drawing and blitting procedures. Window Sets a new coordinate mapping for the current viewport. PMap Converts coordinates between physical and view mappings.