www.delorie.com/archives/browse.cgi   search  
Mail Archives: djgpp/1999/11/05/16:14:34

From: "Philip Bock" <philipb AT escape DOT ca>
Newsgroups: comp.os.msdos.djgpp
Subject: Pointers passed to functions
Lines: 26
X-Priority: 3
X-MSMail-Priority: Normal
X-Newsreader: Microsoft Outlook Express 5.00.2314.1300
X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2314.1300
Message-ID: <4cGU3.2300$1J5.254437@typhoon.mbnet.mb.ca>
Date: Fri, 05 Nov 1999 19:26:56 GMT
NNTP-Posting-Host: 216.81.25.199
X-Trace: typhoon.mbnet.mb.ca 941830016 216.81.25.199 (Fri, 05 Nov 1999 13:26:56 CST)
NNTP-Posting-Date: Fri, 05 Nov 1999 13:26:56 CST
Organization: MBnet Networking Inc.
To: djgpp AT Delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp
Reply-To: djgpp AT delorie DOT com

I have a function whose definition looks like this: (vimg is a struct)

    void draw_vimg(vimg vectimg, int x, int y, int xscale, int yscale);

I want to pass it a vimg defined like so: (gen_vimg creates and sets initail
values for the struct)

    vimg *mygraphic;
    mygraphic = gen_vimg();

So I call draw_vimg like this:

    draw_vimg(mygraphic, 200, 100, 1, 1);

And I get errors like this:

    vector.cpp: In function `int main()':
    vector.cpp:45: conversion from `vimg *' to non-scalar type `vimg'
requested

So what can I do to send pointers to functions that call for variables, and
not pointers too the variables?

Thanks for your help. Philip.


- Raw text -


  webmaster     delorie software   privacy  
  Copyright © 2019   by DJ Delorie     Updated Jul 2019