From:	Nicolas Blais <eletech AT netrover DOT com>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Here's my function to get a string...
Date:	Fri, 19 Jun 1998 07:55:17 -0400
Organization:	Elemental Technologies
Lines:	32
Message-ID:	<358A51A3.67A96095@netrover.com>
NNTP-Posting-Host:	198.168.87.156
Mime-Version:	1.0
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Hi, I asked before for someone to write a function to let the user give
a string with Allegro.  I already have one, but it has one major
problem; you can't use Backspaces.  Is there a way to modify my function
to do so? It uses double buffering (useless but I still brag about
it...)

void get_keys(int leftx, int topy, int Num_ch)
{
clear(screen);
char buf[200];
char msg[2];
int current_num_ch = 0;
do
  {
  current_num_ch++;
  if (current_num_ch == Num_ch) exit(0);
  int value = readkey();
  sprintf(msg,"%c",(value & 0xFF));
  strcat(buf, msg);
  int x = text_length(font, buf);
  int y = text_height(font)+4;
  BITMAP* textbmp = create_bitmap(x,y);
  clear(textbmp);
  textout((BITMAP*)textbmp,font,buf,0,0,RGB(255,0,0));
  blit((BITMAP*)textbmp, screen, 0,0,leftx,topy,textbmp->w,textbmp->h);
  destroy_bitmap(textbmp);
  }
while (!key[KEY_ENTER]);
}

Hope you can find this error, Nicolas Blais

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