|
Thanks for the quick reply!!!!
The static method u told returns a window pointer and how can a add string to the list box with the window pointer !!!!!
I have used CWnd::GetDlgItem to get the ListBox handle is that OK or should i do something else..
Can u tell me how to use LB_ADDSTRNG Message if Possible..
Thanks,
Hari
|
|
|
|
|
SendMessage(GetDlgItem(IDC_LIST1)->m_hWnd, LB_ADDSTRING, 0, _T("String to be Added"));
«_Superman_»
I love work. It gives me something to do between weekends.
|
|
|
|
|
When i use GetDlgItem(IDC_LIST1)->m_hWnd it throws an assertion and m_hWnd is null ..... ASSERT(::IsWindow(m_hWnd));
Please tell me how to solve this problem...
Brief Steps to what i did in the program:
1.Derive a class from Cwinthread and add a thread controlling function
2.CDlg::OnBnOK
{
Create a UI thread;
Post a message to Thread Controlling fucntion.
}
3.In Thread controlling function Fill the List Box.
4. Here i am getting m_hwnd as NUll.
|
|
|
|
|
hraman1987 wrote: 3.In Thread controlling function Fill the List Box.
What part of "Do not access UI controls from any thread other than the one that owns them" are you not getting? Please read this before continuing.
"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
|
|
|
|
|
«_Superman_» wrote: SendMessage(GetDlgItem(IDC_LIST1)->m_hWnd, LB_ADDSTRING, 0, _T("String to be Added"));
This should be posting the message to the list control's parent, not sending the message to the list control itself.
"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
|
|
|
|
|
Hi,
Microsoft manages to pass on API names to their DLL's without the customary C or CPP Name Decorations. How can I do the same with my API's
Regards,
Bram van Kampen
|
|
|
|
|
Hi,
C++ does decorate names (function name mangling) and C does not.
IIRC there is a way to avoid it in a cpp file by using extern "C" { ... }.
I suggest you look that up in the documentation.
Luc Pattyn
Have a look at my entry for the lean-and-mean competition; please provide comments, feedback, discussion, and don’t forget to vote for it! Thank you.
Local announcement (Antwerp region): Lange Wapper? Neen!
|
|
|
|
|
What I do is use extern "C" {} around the functions I want to export and then use a .def file. (One reason I use a .def file is to control the ordinals of the exported functions which is critical when adding to a DLL that you or third parties will use without relinking. MFC does the same thing with decorated functions for the same reason, though without the extern "C" keyword.)
|
|
|
|
|
Programming from Window CE. I have std::wstring fileString. This is converted to C String using
wcscpy(fileBuffer,fileString.c_str())
My problem is that I just want a simple text file to open in another program and process but WriteFile() function is based on bytes so instead of
A)MU09/21/200912:15:22abc500......... I get
B)M U 0 9 / 2 1 / 2 0 0 9 / 1 2 : 1 5 : .........
where each char is 2 bytes rather than 1 byte and other program cannot process
Any help on how to get A versus B would be greatly appreciated.
|
|
|
|
|
The data you have is UNICODE since you're using wstring.
How are you opening the text file? Notepad?
Some programs like Notepad understands that the file is UNICODE by reading a header.
The header is called BOM header.
Read more about it here - Byte-order mark[^]
In your case you should write FF and FE as the first 2 bytes to the file before writing your data.
«_Superman_»
I love work. It gives me something to do between weekends.
|
|
|
|
|
Your program is using std::wstring which has unicode (utf-16) string but another program you say may expect std::string which has ascii (or utf-8) string.
A solution is that you should change your wstring encoding to string like this.
std::string fileString;
size_t len = wcstombs(NULL, fileBuffer, 0);
fileString.reserve(len);
wcstombs(fileString.data(), fileBuffer, len);
WriteFileA(hFile, fileString.c_str(), fileString.length(), &dwRitten, NULL);
Or you can change your program to non-unicode program which always uses std::string, char and xxxA api's.
|
|
|
|
|
norish wrote: Or you can change your program to non-unicode program
He's in CE; that's not an option.
|
|
|
|
|
The Win32 function WideCharToMultiByte[^] will give you the most control over converting to UTF-8 or ANSI. ANSI may lose information, but UTF-8 will not. On the flip side, programs reading your data may not read and convert UTF-8 correctly.
|
|
|
|
|
A dialog is blocked by sending/waiting actions.
I need to know if user clicked a combo-box in blocked time, do something if yes or close the dialog.
the message is WM_LBUTTONDOWN, whose index in message loop is unknown.
How to get the specified message from message loop?
|
|
|
|
|
How are you waiting in the dialog?
Are you using WaitForSingleObject or WaitForMultipleObjects?
If so, try using MsgWaitForMultipleObjects instead.
«_Superman_»
I love work. It gives me something to do between weekends.
|
|
|
|
|
Hi
I have a software which reads data from a database file (Firebird database). The problem is Firebird database does not protect its user database file (no password protection). I have some key fields in the database I don't want to share with users.
I am using Perl scripts to populate the database. So Perl should be able to run the encryption algorithm.
Could you give me some suggestions?
Best regards,
modified on Monday, September 21, 2009 4:25 PM
|
|
|
|
|
transoft wrote: Could you give me some suggestions?
Post this in the Perl forum!
|
|
|
|
|
Microsoft supplies some Cryptography apis and you can search them in msdn.
|
|
|
|
|
See [^].
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
[My articles]
|
|
|
|
|
I am using static splitter frame (left CTreeCtrl right CTabCtrl) updating the right pane from the left. I am stumped with processing TVN_SELCHANGING and TVN_SELCHANGED. CTreeCtrl generates both notification messages after left mouse button click. I am not sure which one is correct to process in my case.
Could someone please point me to some kind a of code sample / tutorial on this.
So far all my searches were pretty dry and did not explain the purpose of two notification messages on same input.
Thanks for reading. Any help is as always appreciated.
|
|
|
|
|
In most cases, you want to process TVN_SELCHANGED - that's the notification you get after the selection is changed. The most common reason to implement TVN_SELCHANGING is when you want to control whether to allow the change of selection or not.
|
|
|
|
|
Thanks for reply. It just does not adds up. Both messages are posted on same button action, only the TVN_SELCHANGING comes up first. I'll try to use just TVN_SELCHANGED.
|
|
|
|
|
Vaclav_Sal wrote: It just does not adds up. Both messages are posted on same button action, only the TVN_SELCHANGING comes up first. I'll try to use just TVN_SELCHANGED.
Why do you say it does not add up? If you handle TVN_SELCHANGING you can prevent the selection change to take place. If you don't prevent it, you'll see both messages.
|
|
|
|
|
The purpose is that TVN_SELCHANGING is sent before the selection changes and the tree control updates its internal state. That's why the message is called changing. TVN_SELCHANGED is sent after the selection changes. Which one you need to handle depends entirely on what your code needs to do. In general, if all you need to do is "when the user selects something in the tree, do XYZ" then handle TVN_SELCHANGED.
--Mike--
Dunder-Mifflin, this is Pam
|
|
|
|
|
Using VC6 & MFC
Most MFC controls have a "Read Only" property so you can stop the user from making any changes to the value. However when you do this the control is displayed all in grey colours which makes it harder to read. Is there any easy way to make these controls "read only" but keep them obvious on screen, ie say in the default black and white ?
I am sure it can be done by overrding CEdit or similar and writing your own display code but this seems a bit to much like hard work.
Perhaps there is an easy was to make the controls read only which does'nt result in them becoming all grey ?
|
|
|
|
General 
News 
Suggestion 
Question 
Bug 
Answer 
Joke 
Praise 
Rant 
Admin 
Submit an article or tip
