Solved

How to load an bitmap image with raw data?

Posted on 1997-07-06
2
1,166 Views
Last Modified: 2010-04-06
I'm looking for tips as to how to load a bitmap in C++ Builder (hopefully its the same as Delhi ;-).

The built in methods seem to be for loading from file, clipboard or another bitmap!

What's a good way of loading a pixel, a line or even the whole bitmap with raw data - apart from saving to a BMP first!

Thanks
Chris Hart
chris.hart@iee.org
0
Comment
Question by:chrishart
[X]
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
2 Comments
 
LVL 1

Accepted Solution

by:
ygolan earned 100 total points
ID: 1338332
Chris,

To access the specific pixels, use the Bitmap.Canvas.Pixels[X, Y]  property. To access a line of pixels you can use Bitmap.ScanLine property - it will give you a pointer to the pixels of a specific line in the bitmap.

To load the bitmap with raw data, create a memory stream (TMemoryStream), write the raw data to the stream and use Bitmap.LoadFromStream.
0
 

Author Comment

by:chrishart
ID: 1338333
Excellent, very quick and to the point.

I'm just embarrased I couldn't get this stuff out of the docs :-(

Thanks you ygolan!

Chris
0

Featured Post

Free Tool: SSL Checker

Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

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

Have you ever had your Delphi form/application just hanging while waiting for data to load? This is the article to read if you want to learn some things about adding threads for data loading in the background. First, I'll setup a general applica…
In my programming career I have only very rarely run into situations where operator overloading would be of any use in my work.  Normally those situations involved math with either overly large numbers (hundreds of thousands of digits or accuracy re…
In this video we outline the Physical Segments view of NetCrunch network monitor. By following this brief how-to video, you will be able to learn how NetCrunch visualizes your network, how granular is the information collected, as well as where to f…
This tutorial will teach you the special effect of super speed similar to the fictional character Wally West aka "The Flash" After Shake : http://www.videocopilot.net/presets/after_shake/ All lightning effects with instructions : http://www.mediaf…
Suggested Courses
Course of the Month7 days, 5 hours left to enroll

623 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