?
Solved

Weird CComboBox OnDropDown problem

Posted on 1997-07-24
4
Medium Priority
?
331 Views
Last Modified: 2013-11-20
null
0
Comment
Question by:roelf
  • 2
  • 2
4 Comments
 
LVL 8

Accepted Solution

by:
gelbert earned 200 total points
ID: 1302785
I think your problem is that you tring to bring up MessageBox in CBN_DROPDOWN message handler when MFC is trying to do some painting to fill in listbox of combobox and message box  also trying to do some painting. Possible solution is to use PostMessage to call another function to bring up message box.
0
 

Author Comment

by:roelf
ID: 1302786
I have tried using PostMessage() in the OnDropdownCombo1() function
to call another function to display the messagebox.  The messagebox
comes up allright, but then the list part of the combobox closes,
so no item can be selected.
0
 
LVL 8

Expert Comment

by:gelbert
ID: 1302787
IF you want to have open listbox part ob combobox after message box is closed then as soon as user press "OK" on your message box, send CBN_DROPDOWN message to combobox class to reopen list box and not to display message box this time.
0
 

Author Comment

by:roelf
ID: 1302788
I can do that, but it seems to be such a schlep to keep track of
is this the first ONDROPDOWN or the second one, etc...

Thanks anyway - at least I can get it working now.
0

Featured Post

Become an Android App Developer

Ready to kick start your career in 2018? Learn how to build an Android app in January’s Course of the Month and open the door to new opportunities.

Question has a verified solution.

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

Introduction: Displaying information on the statusbar.   Continuing from the third article about sudoku.   Open the project in visual studio. Status bar – let’s display the timestamp there.  We need to get the timestamp from the document s…
In this post we will learn different types of Android Layout and some basics of an Android App.
This video will show you how to get GIT to work in Eclipse.   It will walk you through how to install the EGit plugin in eclipse and how to checkout an existing repository.
Is your organization moving toward a cloud and mobile-first environment? In this transition, your IT department will encounter many challenges, such as navigating how to: Deploy new applications and services to a growing team Accommodate employee…
Suggested Courses

616 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