Solved

Is it better to use HBITMAP or LPBITMAP as a pattern when working with/managing BITMAPs in a Windows application?

Posted on 2015-01-10
2
181 Views
Last Modified: 2015-01-10
Hi:

I'm building an utility application which reads in a bitmap and then performs analysis on it.

As matter of implementation/design patterns, is it better to store, use and pass as a parameter an
HBITMAP or an LPBITMAP?

I know that I can retrieve an LPBITMAP from an HBITMAP via the GetObject() call.
I'm not sure how expensive it is to use that call repeatedly.

What's the more accepted practice to use?
HBITMAP or LPBITMAP?

Thanks,
JohnB
0
Comment
Question by:jxbma
2 Comments
 
LVL 86

Accepted Solution

by:
jkr earned 500 total points
ID: 40542548
That will depend on whatr you want to do with that parameter. If you are already manipulating that bitmap and pass the data to a subroutine to process it, it'd be better to use a LPBITMAP, since the subroutine would have to call 'GetObject()' itself each time. If you are passing the parameter as merely an 'informational' value (i.e. not working on the data, a HBITMAP seems more appropriate. Windows will lock the data in memory internally when you call 'GetObject()'. On the other hand, that practice was recommended whan computers ran Win9x and had considerably less memory than today, so you might not even remotely run into issues, but it's always nicer to be easy on the OS' resources.
0
 
LVL 1

Author Closing Comment

by:jxbma
ID: 40542719
Cool. That's what I kind of thought.
Thx
0

Featured Post

Problems using Powershell and Active Directory?

Managing Active Directory does not always have to be complicated.  If you are spending more time trying instead of doing, then it's time to look at something else. For nearly 20 years, AD admins around the world have used one tool for day-to-day AD management: Hyena. Discover why

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
firstswap challenge 20 78
C# DataGridView_RowsAdded event not firing 1 76
What is sub-make ? 2 62
show out valin of json for debugging in visaul c++ 1 33
Does the idea of dealing with bits scare or confuse you? Does it seem like a waste of time in an age where we all have terabytes of storage? If so, you're missing out on one of the core tools in every professional programmer's toolbox. Learn how to …
In this post we will learn how to connect and configure Android Device (Smartphone etc.) with Android Studio. After that we will run a simple Hello World Program.
The viewer will learn how to pass data into a function in C++. This is one step further in using functions. Instead of only printing text onto the console, the function will be able to perform calculations with argumentents given by the user.
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.

831 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