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/* C header for Khicas interface with calculator OS */
#ifndef K_CSDK_H
#define K_CSDK_H
#include "k_defs.h"
#ifdef __cplusplus
extern "C" {
#endif
extern short exam_mode;
extern unsigned exam_start;
extern int exam_duration;
int ext_main();
bool waitforvblank();
bool back_key_pressed() ;
// next 3 functions may be void if not inside a window class hierarchy
void os_show_graph(); // show graph inside Python shell (Numworks), not used
void os_hide_graph(); // hide graph, not used anymore
void os_redraw(); // force redraw of window class hierarchy
#ifdef NUMWORKS
void numworks_set_pixel(int x,int y,int c);
int numworks_get_pixel(int x,int y);
void numworks_fill_rect(int x,int y,int w,int h,int c);
int numworks_draw_string(int x,int y,int c,int bg,const char * s,bool fake=false);
int numworks_draw_string_small(int x,int y,int c,int bg,const char * s,bool fake=false);
void numworks_show_graph();
void numworks_hide_graph();
void numworks_redraw();
void numworks_wait_1ms(int ms);
// access to Numworks OS, defined in port.cpp (or modkandinsky.cpp)
inline void os_set_pixel(int x,int y,int c){
numworks_set_pixel(x,y,c);
}
inline int os_get_pixel(int x,int y){
return numworks_get_pixel(x,y);
}
inline void os_fill_rect(int x,int y,int w,int h,int c){
numworks_fill_rect(x,y,w,h,c);
}
inline int os_draw_string(int x,int y,int c,int bg,const char * s,bool fake){
return numworks_draw_string(x,y,c,bg,s,fake);
}
inline int os_draw_string_small(int x,int y,int c,int bg,const char * s,bool fake){
return numworks_draw_string_small(x,y,c,bg,s,fake);
}
inline void os_shaw_graph(){ return numworks_show_graph(); }
inline void os_hide_graph(){ return numworks_hide_graph(); }
inline void os_redraw(){ return numworks_redraw(); }
inline void os_wait_1ms(int ms) { numworks_wait_1ms(ms); }
int getkey_raw(int allow_suspend); // Numworks scan code
inline void sync_screen(){}
#endif // NUMWORKS
void os_wait_1ms(int ms);
bool os_set_angle_unit(int mode);
int os_get_angle_unit();
double millis(); //extern int time_shift;
bool file_exists(const char * filename);
bool erase_file(const char * filename);
const char * read_file(const char * filename);
bool write_file(const char * filename,const char * s,size_t len=0);
#define MAX_NUMBER_OF_FILENAMES 255
int os_file_browser(const char ** filenames,int maxrecords,const char * extension);
void sync_screen();
void os_set_pixel(int x,int y,int c);
void os_fill_rect(int x,int y,int w,int h,int c);
inline void drawRectangle(int x,int y,int w,int h,int c){
os_fill_rect(x,y,w,h,c);
}
int os_get_pixel(int x,int y);
/* returns new x position */
int os_draw_string(int x,int y,int c,int bg,const char * s,bool fake=false);
inline int os_draw_string_(int x,int y,const char * s){ return os_draw_string(x,y,giac::_BLACK,giac::_WHITE,s);}
int os_draw_string_small(int x,int y,int c,int bg,const char * s,bool fake=false);
inline int os_draw_string_small_(int x,int y,const char * s){ return os_draw_string_small(x,y,giac::_BLACK,giac::_WHITE,s);}
int os_draw_string_medium(int x,int y,int c,int bg,const char * s,bool fake=false);
inline int os_draw_string_medium_(int x,int y,const char * s){ return os_draw_string_medium(x,y,giac::_BLACK,giac::_WHITE,s);}
void GetKey(int * key);
int getkey(int allow_suspend); // transformed
void enable_back_interrupt();
inline void set_abort(){ enable_back_interrupt(); }
void disable_back_interrupt();
inline void clear_abort(){ disable_back_interrupt(); }
bool isalphaactive();
bool alphawasactive(int * key);
void lock_alpha();
void reset_kbd();
void statuslinemsg(const char * msg);
void statusline(int mode=0);
#ifdef NUMWORKS
inline bool iskeydown(int key){ return getkey(key | 0x80000000); }
#else
bool iskeydown(int key);
#endif
#if defined NSPIRE || defined NSPIRE_NEWLIB
extern bool nspireemu;
extern char nspire_filebuf[NSPIRE_FILEBUFFER];
extern bool on_key_enabled;
void get_hms(int *h,int *m,int *s);
#endif
extern int (*shutdown)(); // function called after 2 hours of idle
extern int shutdown_state;
#ifdef __cplusplus
}
#endif
#endif // K_CSDK_H
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