CompuServe Thread

I modified BOX.C in order to test some of the gfx functions….the code compiles OK but doesn't work. The purpose is to erase the screen, wait for a key and then redraw…that's it. Any ideas? ///////////////////////////////////// #include <stdio.h> #include <math.h> #include <stdlib.h> #include <string.h> #include "pxp.h" #include "exprtn.h" /* Variable definitions */ #define COLOR 1 /************************/ /* Dialog description */ DlgEntry cdialog[]= { /* Text strings to be displayed in dialog box */ 0, "TITLE=\"Test\"", 0, "TITLE=\"by John Doe, Version 1.0\"", /* Setup for 'radio-button' and associated variable */ COLOR, "RADIO=\"AXP Color:\", \"Default\", \"From Object\"", 0, NULL }; /* Version test value */ /* Every external process must have a unique version number */ #define VERSION 0x71FF /* State Structure definition */ /* Any variables whose values are set via dialog interface must be declared within the 'State' struct. */ typedef struct { ulong version; int obj_color; } State; static State init_state = { VERSION, 1 }; /* initial state settings */ static State state = { VERSION, 1 }; /* default settings */ static int ix, thismtl; static float minx, miny, minz, maxx, maxy, maxz; /*—————————————————————-*/ /* Following function sets the appropriate 'State' variables based on the input from the dialog */ void ClientSetStateVar(int id, void *ptr) { OVL o; /* Union of possible values that the dialog can return */ ulong *ul; char *s; ul=(ulong *)ptr; s=(char *)ptr; o.ul = *ul; switch(id) { case COLOR: state.obj_color=o.i; break; /* State variables set here based on Union variable */ } } /* Following function sets the appropriate value of the Union 'OVL' variable to return values stored in the 'State' variable */ ulong ClientGetStateVar(int id) { OVL o; /* Union of the values which can be requested by 3D Studio from the 'State' structure */ switch(id) { case COLOR: o.i=state.obj_color; break; /* Union variable set to appropriate value from 'state' variable */ } return(o.ul); /* The variable requested by 3D Studio is returned to 3D Studio via the 'ulong' field of the 'Union' structure 'OVL'. */ } /* Following function allows 3D Studio to determine the size of any variable in the dialog */ int ClientVarSize(int id) { return(1); } /* Following function allows 3D Studio to determine the size of the 'State' structure and returns a pointer to the 'State' struct */ char *ClientGetState(int *size) { *size = sizeof(State); return((char *)&state); } /* Following function allows 3D Studio to reset the state of the external process */ void ClientResetState() { state = init_state; } /* Following function performs any calculations or packet-commands necessary before the EXP can begin */ void ClientStartup(EXPbuf *buf) { buf->opcode=EXP_NOP; /* Packet command sent to 3D Studio */ buf->usercode=0x0200; buf->status=1; } /* Following function contains user codes which process data */ void ClientUserCode(EXPbuf *buf) { switch(buf->usercode) { case 0x0200: gfx_clearscreen(); gfx_key_wait(ix); gfx_redraw(); buf->opcode=buf->usercode=EXP_TERMINATE; buf->status=0; break; } } void ClientTerminate(void) { /* free any data structures, etc. */ } DlgEntry *ClientDialog(int n) { return(&cdialog[n]); }