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// Holds system header includes, prototypes of TK driver
// utility functions, and definition of the state structure.
//
// This file is set up so that the determined user can get access
// to the tk driver data without too much hassle. The only drawback
// is that plplotP.h must be included to get all of the necessary
// system header files and configuration settings.
//
#ifndef __PLTKD_H__
#define __PLTKD_H__
#include "plplotP.h"
#include "pltk.h"
#include "pdf.h"
#include <tk.h>
#ifdef PLD_dp
#include <dp.h>
#endif
// typedef the type pid_t - a dummy for the moment - for MS Windows
// platforms other than those (e.g., MinGW) that typedef it already.
#if defined ( _WIN32 ) && !defined ( __MINGW32__ )
typedef unsigned int pid_t;
#endif
// One of these holds the TK driver state information
typedef struct
{
Tk_Window w; // Main window
Tcl_Interp *interp; // Interpreter
PLINT xold, yold; // Coordinates of last point plotted
unsigned width, height; // Current window dimensions
int exit_eventloop; // Break out of event loop
int pass_thru; // Skip normal error termination
char *cmdbuf; // Command buffer
size_t cmdbuf_len; // and its length
PLiodev *iodev; // I/O device info
const char *updatecmd; // Name of update command
pid_t child_pid; // PID for child process
int instr; // Instruction timer
int max_instr; // Limit before issuing an update
int locate_mode; // Set while in locate mode
PLGraphicsIn gin; // Graphics input structure
} TkDev;
#endif // __PLTKD_H__
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