Expiring Today—Celebrate National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17

x
?
Solved

Saving CHARFORMAT to registry.

Posted on 2003-11-25
6
Medium Priority
?
352 Views
Last Modified: 2013-11-20
Hi, this should be pretty easy and I'm surprised I can't find it anywhere on the net.  

In my program, the user can choose the default charformat for a richeditctrl.  I want to save (and retrieve) that CHARFORMAT structure to the registry so the users choice remains persistent between sessions.  I'm assuming I can save the most important elements and then reconstruct it on the other side.  But all the conversions, and "dwMask", ect. has me a bit confused.  Can someone show me how to do this?  Thank you.
0
Comment
Question by:jjjkkklll
[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
  • 4
  • 2
6 Comments
 
LVL 23

Accepted Solution

by:
Roshan Davis earned 800 total points
ID: 9822381
Use REG_BINARY type for saving structure.


      CHARFORMAT sCHARFORMAT;

      HKEY lResult = RegOpenKeyEx(HKEY_LOCAL_MACHINE,      
                                                "SOFTWARE\\YourApplication"),
                                                0,
                                                KEY_QUERY_VALUE | KEY_SET_VALUE,
                                                &hKey);

      if ( lResult == ERROR_SUCCESS )
      {
            lResult = RegSetValueEx(hKey,  "CHARFORMAT", 0, REG_BINARY, &sCHARFORMAT, sizeof(CHARFORMAT));
            
            RegCloseKey(hKey);
      }


Rosh :)
0
 

Author Comment

by:jjjkkklll
ID: 9826363
Oh, very cool.  I didn't know you could store the entire CHARFORMAT structure like that.  Then to get it out, I do the same thing only use RegQueryValueEx instead of RegSetValueEx, correct?  Is everything else the same?  (BTW, I'm not at my development computer - I'll let you know as soon as I try the code.)
0
 

Author Comment

by:jjjkkklll
ID: 9829309
Hmm, well I gave it a shot.  First the compiler said hKey was an undeclared identifier.  So I added HKEY hKey; at the top.  No problem.  Then I had to change your HKEY to LONG to make lResult work out.  Okay, everything okay so far.  When I added your RegSetValueEx statement I got the following error:

'RegSetValueExA' : cannot convert parameter 5 from 'struct _charformat *' to 'const unsigned char *'

Here's my code:

      HKEY hKey;
      LONG lResult = RegOpenKeyEx(HKEY_CURRENT_USER, "Software\\MyAppName", 0, KEY_QUERY_VALUE | KEY_SET_VALUE, &hKey);

      if(lResult == ERROR_SUCCESS)
      {
            lResult = RegSetValueEx(hKey, "CHARFORMAT", 0, REG_BINARY, &sCHARFORMAT, sizeof(CHARFORMAT));
      
      }

      RegCloseKey(hKey);

Note: sCHARFORMAT is the name of my member CHARFORMAT that the RichEditCtrl uses for its default CHARFORMAT.  (Defined in the header as CHARFORMAT sCHARFORMAT;).

Not sure where to go from here.
0
Survive A High-Traffic Event with Percona

Your application or website rely on your database to deliver information about products and services to your customers. You can’t afford to have your database lose performance, lose availability or become unresponsive – even for just a few minutes.

 

Author Comment

by:jjjkkklll
ID: 9838763
Okay, I think I figured it out on my own (it seems to work, anyway).  Here's the final code:

Writing:
      HKEY hKey;
      LONG lResult = RegOpenKeyEx(HKEY_CURRENT_USER, "Software\\MyApp", 0, KEY_QUERY_VALUE | KEY_SET_VALUE, &hKey);

      if(lResult == ERROR_SUCCESS)
      {
            lResult = RegSetValueEx(hKey, "CHARFORMAT", 0, REG_BINARY, (LPBYTE)&cf, sizeof(CHARFORMAT));
      
      }

      RegCloseKey(hKey);

Reading:
      HKEY hKey;
      LONG lResult = RegOpenKeyEx(HKEY_CURRENT_USER, "Software\\MyApp", 0, KEY_QUERY_VALUE | KEY_SET_VALUE, &hKey);

      if(lResult == ERROR_SUCCESS)
      {
            DWORD cb = sizeof(cf);
            lResult = RegQueryValueEx(hKey, "CHARFORMAT", 0, NULL, (LPBYTE)&cf, &cb);
            if(lResult == ERROR_SUCCESS)
            {
                  GetRichEditCtrl().SetDefaultCharFormat(cf);
            }

Remember I have a member variable CHARFORMAT cf;

Any comments on this code?  Good?  Bad?  Definitely ugly.
0
 

Author Comment

by:jjjkkklll
ID: 9844059
Okay, well the code seems to work for me.  I'm giving the points and closing the question.  If anyone has any comments, please add them.  Thanks.
0
 
LVL 23

Expert Comment

by:Roshan Davis
ID: 9847959
Sorry for the delay, I was on leave these 4 days
Rosh :)
0

Featured Post

Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

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

Introduction: Load and Save to file, Document-View interaction inside the SDI. Continuing from the second article about sudoku.   Open the project in visual studio. From the class view select CSudokuDoc and double click to open the header …
Have you tried to learn about Unicode, UTF-8, and multibyte text encoding and all the articles are just too "academic" or too technical? This article aims to make the whole topic easy for just about anyone to understand.
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.
In this video, Percona Solutions Engineer Barrett Chambers discusses some of the basic syntax differences between MySQL and MongoDB. To learn more check out our webinar on MongoDB administration for MySQL DBA: https://www.percona.com/resources/we…

730 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