Changing Resolution

Posted on 1998-07-03
Medium Priority
Last Modified: 2010-04-15
Is there any way of changing BMP graphics file resolution using turboc.I mean say from 320x200 to 640x480 and so on.
Question by:SHAHZAD
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions

Expert Comment

ID: 1251533
This is not really a C question. Ask in one of the PC or graphics areas.

Author Comment

ID: 1251534
Thanks for telling me the right place to look for.

Accepted Solution

Morten from Eliten earned 40 total points
ID: 1251535
If you want to change the size of a bitmap, you will have to open the bitmap file, and manipulate the contents of it.
The Bitmap file begins with a header, which tells how heigh and wide the bitmap is, what color depth it is, etc. Following the header, there is the actual data of the bitmap file.
To increase the size of the bitmap, you will first have to change the header to set the correct size, and then strech the content of the bitmap file.

Rounding it up, this means that you'll have to do the streching for yourself. Some of the guys in the graphics areas can properly help you decoding the bitmap file.


Author Comment

ID: 1251536
Your answer seems to be correct to me.I'll try it.Thanks


Expert Comment

ID: 1251537


Featured Post

What does it mean to be "Always On"?

Is your cloud always on? With an Always On cloud you won't have to worry about downtime for maintenance or software application code updates, ensuring that your bottom line isn't affected.

Question has a verified solution.

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

Preface I don't like visual development tools that are supposed to write a program for me. Even if it is Xcode and I can use Interface Builder. Yes, it is a perfect tool and has helped me a lot, mainly, in the beginning, when my programs were small…
Windows programmers of the C/C++ variety, how many of you realise that since Window 9x Microsoft has been lying to you about what constitutes Unicode (http://en.wikipedia.org/wiki/Unicode)? They will have you believe that Unicode requires you to use…
The goal of this video is to provide viewers with basic examples to understand how to use strings and some functions related to them in the C programming language.
The goal of this video is to provide viewers with basic examples to understand opening and reading files in the C programming language.
Suggested Courses
Course of the Month11 days, 14 hours left to enroll

752 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