Very Simple GUI

[Kernelpanic]

Well I know I don't want to build an independent floating Dialog Screen, hmmm how about Window layers: screen 1 on top of screen 2 on top of screen 3... ? hmm... I take a nap.

I used different layers on top of each other in a program with QuickC. Created under Win 95, it ran under MS-DOS and was intended to resemble Windows. It looked something like this:

Code: (Select All)

#include <stdio.h>
#include <stdlib.h>
#include <conio.h>
#include <math.h>
#include <graph.h>

#define CURSOR_AUS 0x2000
#define CURSOR_NORMAL 0x0707

void effektivZins( double nominal_zins, double kurs, double p_annu, int t_frei );

main()
{
    int vg_farbe, i, spalte;
    int azeile, aspalte, ezeile, espalte;
    int t_zeit;                              //Tilgungsfreie Zeit
    unsigned int hg_farbe;
    double kurs, nominal_zins, prozent_annu;
    char puffer[64];

    hg_farbe = _getbkcolor();
    vg_farbe = _gettextcolor();
    _gettextwindow( &azeile, &aspalte, &ezeile, &espalte );

    _setbkcolor( 15L );
    _clearscreen( _GCLEARSCREEN );
    _settextcolor( 14 );
    _settextposition( 2, 6 );
    _outtext( "Effektivverzinsung einer Kapitalschuld bei gegebenem Auszahlungskurs" );
    _settextposition( 3, 14 );
    _outtext( "tilgungsfreier Zeit und Tilgung durch Prozentannuität" );
    _settextcolor( 10 );
    for ( i = 1, spalte = 6; i < 69; i++ )
    {
        _settextposition( 4, spalte++ );
        _outtext( "þ" );
    }
    _settextwindow( 6, 2, 24, 79 );
    _setbkcolor( 1L );
    _clearscreen( _GWINDOW );

    _settextcolor( 15 );
    _settextposition( 2, 10 );
    _outtext( "Die vereinbarte Jahres-Nominalverzinsung beträgt (%) : " );
    scanf("%lf", &nominal_zins);