EM_SETTEXTEX is working fine on one computer but doesnt work on another...
How can I find cause of the problem?
SendMessage() return 0
GetLastError() return 0
Who is Participating?
cureroConnect With a Mentor Commented:
1. %SYSTEM% folder ( Ex: C:\Windows\System32), search riched20.dll;
version of a binary file: 'Properties' in windows explorer, the version tab; my riched20.dll: "Description:   Rich Text Edit Control, v3.0"

2. WinME has "riched20.dll" installed natively; I reallly think you have other problem (but verify that the richedit20.dll is there): WinME is multi-byte, XP is Unicode (NT-based); please give more informations: ( some code eventually)
Jaime OlivaresSoftware ArchitectCommented:
Which operating systems. Although min is Win95, it is required to have RichEdit 3.0 installed.
serg111Author Commented:
It is Win ME that cause an error
How can I make sure that RichEdit installed?
The Edit control is actually created but doesn't show output
Upgrade your Question Security!

Your question, your audience. Choose who sees your identity—and your question—with question security.

EM_SETTEXTEX   message is only applicable for Richedit 3.0 or higher - so to know the version on ur computer
Open richedit.h file in an editor -  It will be showing the number for richedit control version no.
It will be their in ur include folder in VIsual studio installed folder
serg111Author Commented:
Yes, it is 3.0 on my computer's richedit.h
But computer where it is not working doesn't have richedit.h and Visual studio installed
serg111Author Commented:
You are right! Somehow there was and old version of dll ...
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

All Courses

From novice to tech pro — start learning today.