Solved

DWORD

Posted on 2002-06-02
4
695 Views
Last Modified: 2008-03-06
Hi, I'm newbie in c++ and I can't solve this probllem:


I have:
char * mychar = "0xffff0000";
DWORD color;

I want to put mychar into color like I usually do:
color = 0xffff0000;



Tnx.
0
Comment
Question by:Romonnn
  • 2
  • 2
4 Comments
 
LVL 86

Expert Comment

by:jkr
ID: 7049687
use 'strtol()':

#include <stdlib.h>

cahr * pc;
char * mychar = "0xffff0000";
DWORD color;

color = strtol ( mychar, &pc, 16); // 16 indicates hex numeric base

if ( *pc) {
// error
}
0
 

Author Comment

by:Romonnn
ID: 7049766
jkr, this is the best answer on my question. But, the output of strtol still not the same. The output is 2147483647 but it should be 4294901760 (approximately 2 * 2147483647). As a newbie i tried 32 as 3 argument of strtol(output 0). I still don't know what to do :(



#include <stdlib.h>
#include <iostream.h>
#include <windows.h>


int main(){


char * pc;
char * mychar = "0xffff0000";
DWORD color;
DWORD color2 = 0xffff0000;

color = strtol ( mychar, &pc, 16); // 16 indicates hex numeric base

cout << color << endl;
cout << color2 << endl;


if ( *pc) {
// error
}
}
0
 
LVL 86

Accepted Solution

by:
jkr earned 100 total points
ID: 7049773
My fault - use "strtoul()" instead...
0
 

Author Comment

by:Romonnn
ID: 7049810
Tnx. Everything works fine :)
0

Featured Post

Announcing the Most Valuable Experts of 2016

MVEs are more concerned with the satisfaction of those they help than with the considerable points they can earn. They are the types of people you feel privileged to call colleagues. Join us in honoring this amazing group of Experts.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Unlike C#, C++ doesn't have native support for sealing classes (so they cannot be sub-classed). At the cost of a virtual base class pointer it is possible to implement a pseudo sealing mechanism The trick is to virtually inherit from a base class…
Introduction This article is the first in a series of articles about the C/C++ Visual Studio Express debugger.  It provides a quick start guide in using the debugger. Part 2 focuses on additional topics in breakpoints.  Lastly, Part 3 focuses on th…
The goal of the tutorial is to teach the user how to use functions in C++. The video will cover how to define functions, how to call functions and how to create functions prototypes. Microsoft Visual C++ 2010 Express will be used as a text editor an…
The viewer will be introduced to the member functions push_back and pop_back of the vector class. The video will teach the difference between the two as well as how to use each one along with its functionality.

839 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question