• Announcements

    • khawk

      Download the Game Design and Indie Game Marketing Freebook   07/19/17

      GameDev.net and CRC Press have teamed up to bring a free ebook of content curated from top titles published by CRC Press. The freebook, Practices of Game Design & Indie Game Marketing, includes chapters from The Art of Game Design: A Book of Lenses, A Practical Guide to Indie Game Marketing, and An Architectural Approach to Level Design. The GameDev.net FreeBook is relevant to game designers, developers, and those interested in learning more about the challenges in game development. We know game development can be a tough discipline and business, so we picked several chapters from CRC Press titles that we thought would be of interest to you, the GameDev.net audience, in your journey to design, develop, and market your next game. The free ebook is available through CRC Press by clicking here. The Curated Books The Art of Game Design: A Book of Lenses, Second Edition, by Jesse Schell Presents 100+ sets of questions, or different lenses, for viewing a game’s design, encompassing diverse fields such as psychology, architecture, music, film, software engineering, theme park design, mathematics, anthropology, and more. Written by one of the world's top game designers, this book describes the deepest and most fundamental principles of game design, demonstrating how tactics used in board, card, and athletic games also work in video games. It provides practical instruction on creating world-class games that will be played again and again. View it here. A Practical Guide to Indie Game Marketing, by Joel Dreskin Marketing is an essential but too frequently overlooked or minimized component of the release plan for indie games. A Practical Guide to Indie Game Marketing provides you with the tools needed to build visibility and sell your indie games. With special focus on those developers with small budgets and limited staff and resources, this book is packed with tangible recommendations and techniques that you can put to use immediately. As a seasoned professional of the indie game arena, author Joel Dreskin gives you insight into practical, real-world experiences of marketing numerous successful games and also provides stories of the failures. View it here. An Architectural Approach to Level Design This is one of the first books to integrate architectural and spatial design theory with the field of level design. The book presents architectural techniques and theories for level designers to use in their own work. It connects architecture and level design in different ways that address the practical elements of how designers construct space and the experiential elements of how and why humans interact with this space. Throughout the text, readers learn skills for spatial layout, evoking emotion through gamespaces, and creating better levels through architectural theory. View it here. Learn more and download the ebook by clicking here. Did you know? GameDev.net and CRC Press also recently teamed up to bring GDNet+ Members up to a 20% discount on all CRC Press books. Learn more about this and other benefits here.
Sign in to follow this  
Followers 0
noatom

win32 list box doesn't add strings

6 posts in this topic

So I created a win32 dialog with a list box in it, that has the id IDC_LIST1.

 

Then I just tried to add a string to it with:

SendDlgItemMessage(hDlg, IDC_LIST1, LB_ADDSTRING, 0, (LPARAM)L"test");

 

but nothing appears!

 

So I later added an edit box,and changed it's text,that,indicates that there is no hwnd problem or something like that. What could the problem be?

0

Share this post


Link to post
Share on other sites

Could be a few things. Show the creation of the list box (is ID set properly?),

 

Which value is returned?

 

From MSDN:

 

The return value is the zero-based index of the string in the list box. If an error occurs, the return value is LB_ERR. If there is insufficient space to store the new string, the return value is LB_ERRSPACE.

0

Share this post


Link to post
Share on other sites

I don't think it was the id,i checked it many times, and i even added other listboxes and tried with them too. I just restarted visual studio,deleted all the listboxes and just added a new one and it just worked...not sure what was wrong...

0

Share this post


Link to post
Share on other sites

Maybe your project by default is set to MultiByte instead of unicode, try SendDlgItemMessageW.

Edited by Eliad Moshe
0

Share this post


Link to post
Share on other sites

Maybe your project by default is set to MultiByte instead of unicode, try SendDlgItemMessageW.

 

If SendDlgItemMessageA was being called, the code wouldn't compile with the L prefix on the test string.

0

Share this post


Link to post
Share on other sites

 

 

Maybe your project by default is set to MultiByte instead of unicode, try SendDlgItemMessageW.

 

If SendDlgItemMessageA was being called, the code wouldn't compile with the L prefix on the test string.

 

See the function def at MSDN : http://msdn.microsoft.com/en-us/library/windows/desktop/ms645515%28v=vs.85%29.aspx
You need to cast the last parameter to LPARAM.
 

 

 

Oh yeah, sorry. My mistake. Potential nastiness with UNICODE vs multibyte there with the cast, you're quite correct.

0

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0