Fb_No_Gfxlib
User-defined compiler control symbol
#define FB_NO_GFXLIB
Defining FB_NO_GFXLIB tells the compiler not to treat selected graphics-library command words as built-in gfxlib command keywords.
This is useful in larger programs or libraries that do not use the legacy graphics command surface and need names such as Screen, Paint, or Window to be available as normal identifiers.
The affected gfxlib command words are PSET, PRESET, POINT, CIRCLE, WINDOW, PALETTE, SCREEN, SCREENQB, PAINT, DRAW, and IMAGECREATE.
FB_NO_GFXLIB affects parsing only after the symbol has been defined. It does not remove libraries that are explicitly requested through other code, and it does not change the behavior of already-parsed source.
Syntax
#define FB_NO_GFXLIB
Description
Defining FB_NO_GFXLIB tells the compiler not to treat selected graphics-library command words as built-in gfxlib command keywords.
This is useful in larger programs or libraries that do not use the legacy graphics command surface and need names such as Screen, Paint, or Window to be available as normal identifiers.
The affected gfxlib command words are PSET, PRESET, POINT, CIRCLE, WINDOW, PALETTE, SCREEN, SCREENQB, PAINT, DRAW, and IMAGECREATE.
FB_NO_GFXLIB affects parsing only after the symbol has been defined. It does not remove libraries that are explicitly requested through other code, and it does not change the behavior of already-parsed source.
Example
#define FB_NO_GFXLIB
Type Window
As Integer id
End Type
Dim As Window main_window
main_window.id = 1
Type Window
As Integer id
End Type
Dim As Window main_window
main_window.id = 1
Version
- Since fbc 1.20.1
Differences from QB
- New to FreeBASIC
See also