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The C Users' Group Library 1994 August
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wc-cdrom-cusersgrouplibrary-1994-08.iso
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vol_300
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361_02
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tmu.c
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C/C++ Source or Header
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1991-09-20
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62 lines
#include <stdek.h>
#include <stdio.h>
#include <gadgets.h>
#include <process.h>
#include <keys.h>
int TMu(char **Mu, int X, int Y, long Color, int Border)
{
int ch, i, xx, yy, Flag, GreyOut, HiLite, Lit, Selected, Z;
char *FootPrint;
extern char HelpTag[20];
/* Save Cursor, Calculate Menu Size & Get Colors */
Getxy(&xx, &yy); Flag = HideCursor(); if (Mu[0][10] IS '+') Border >>= 8;
GreyOut = Color & 0xFF; Color >>= 8; HiLite = Color & 0xFF; Color >>= 8;
if (Mu[0][10] IS '-') Color = GreyOut;
for (Z = 1; Mu[Z+1] != NULL ; Z++);
if ((FootPrint = (char *) malloc(strlen((Mu[1]) + Z+3) * 2)) IS NULL)
return 0;
/* Build a Drop Box Menu */
MkAskBox(FootPrint, X, Y, strlen(Mu[1])-1, Z+2, 'R',
(char *) strchr(*Mu, '['), "[<Esc> to Cancel]", "", Border);
for (i = 0; i++ < Z; )
if (Mu[i][2] IS '-') Dwrite(X+1, Y+i, GreyOut, Mu[i]+3);
else Dwrite(X+1, Y+i, Color, Mu[i]+3);
Lit = Selected = 1; Dwrite(X+1, Y+1, HiLite, Mu[1]+3); HideCursor();
/* Querry User */
do {
if (Selected != Lit) {
if (Mu[Lit][2] IS '-') Dwrite(X+1, Y+Lit, GreyOut, Mu[Lit]+3);
else Dwrite(X+1, Y+Lit, Color, Mu[Lit]+3);
Lit = Selected; Dwrite(X+1, Y+Lit, HiLite, Mu[Lit]+3);
}
switch (ch = Kbq_read()) {
case F1:
strncpy(HelpTag, Mu[0], 10); HelpTag[10] = NULL; TisHelp();
break;
case DN: if (Selected++ IS Z) Selected = 1; break;
case UP: if (Selected-- IS 1) Selected = Z; break;
case FWD:
case BWD:
case ESC: Selected = ch = 0; break;
case CR: if (Mu[Selected][2] IS '+') ch = 0; break;
default:
for (i = 0; ch != SPACE && i++ < Z; )
if (*Mu[i] IS ch && Mu[i][2] IS '+') {
ch = 0; Selected = i; break; }
}
} while (ch);
/* Clean Up & Split */
ZapAskBox(FootPrint, X, Y, strlen(Mu[1])-1, Z+2, 'R'); free(FootPrint);
Gotoxy(xx, yy); if (Flag) ShowCursor(0);
return (!Selected || Mu[0][2] IS '-') ? 0 : Mu[Selected][1];
}