Miscelanous functions

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Detailed Description

Miscelanous functions

Functions
unsigned __fastcall	fgl::GetXRes (void)
unsigned __fastcall	fgl::GetYRes (void)
FGPixel *__fastcall	fgl::GetFrameBuffer (void)
int __fastcall	fgl::get_colordepth (void)
int	fgl::ClipLine (int &x1, int &y1, int &x2, int &y2, int __clipx1, int __clipy1, int __clipx2, int __clipy2)
void	fgl::clear_frame_buffer (FGPixel color)
int	fgl::graph_change_mode (int ww, int hh)
unsigned long __fastcall	fgl::FGClock (void)
const char *	fgl::GetVer (void)
void	fgl::cleanup (void)
int	fgl::graph_set_mode (int mode)
void	fgl::IError (char *s, int flag)

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Function Documentation

void fgl::cleanup (  void   )

sanity - for backing to previous console mode only.

void fgl::clear_frame_buffer (  FGPixel  c  )

Clears the whole screen. Parameters: c  background color Examples: cdialog.cpp, and double.cpp.

int ClipLine (  int &  x1, int &  y1, int &  x2, int &  y2, int  __clipx1, int  __clipy1, int  __clipx2, int  __clipy2 )

Modified Cohen-Sutherland line clipping algorithm. Unlike "stock" Cohen-Sutherland algorithm, produces clipped coordinates suitable for rendering Bresenham lines. Returns 0 if line completely clipped out (reject) else returns 1

unsigned long __fastcall fgl::FGClock (  void   )

Returns absolute time in msec from the start of application. Useful for timing.

int __fastcall fgl::get_colordepth (  void   )

Returns the number of bits used per pixels. I.e. 8 for 256 color modes 15, 16 or 32 for non-indexed modes Examples: rad_prj.cpp.

FGPixel *__fastcall fgl::GetFrameBuffer (  void   )

Returns the VRAM array address. YOu can use this address for direct videomemory access.

const char * fgl::GetVer (  void   )

Returns the version string, by example: "4.1.0"

unsigned __fastcall fgl::GetXRes (  void   )

Returns the X axis resolution (visible) Examples: bitmap.cpp, buttons.cpp, and rad_main.cpp.

unsigned __fastcall fgl::GetYRes (  void   )

Returns the Y axis resolution (visible) Examples: bitmap.cpp, buttons.cpp, and rad_main.cpp.

int fgl::graph_change_mode (  int  ww, int  hh )

Change from one to other graphics mode with its resolution. Parameters: ww  the new X axis resolution hh  the new Y axis resolution Returns: TRUE if OK Examples: fgv.cpp.

int fgl::graph_set_mode (  int  mode  )

Set the graphics mode with its resolution. Parameters: mode  the videomode (the screen resolution) Returns: TRUE if all is OK.

void fgl::IError (  char *  s, int  flag )

Show the error dialog with defined string. Parameters: s  a string that will be shown flag  0 for warning or for fatal error (will exit after presskey). If you want MODAL dialog, you must add to the flag the value 2. Examples: alpha.cpp, fgv.cpp, rad_gen.cpp, and rad_prj.cpp.

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