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try strtod or neutral _tcstod
"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow cheers, Alok Gupta VC Forum Q&A :- I/ IV
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Hey everyone.
I keep getting this error while using Visual C++ 2005 Express Edition, does anyone know how to fix this?
Error 1 error C2664: 'MessageBoxW' : cannot convert parameter 2 from 'const char [15]' to 'LPCWSTR' d:\my documents\visual studio 2005\projects\hello-win32\hello-win32\page1.cpp 17
Thanks in Advance 
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Wrap the strings in your MessageBox in the _T macro like this:
MessageBox(NULL, _T("Hello"), _T("Hello"), MB_OK);
If you get an error saying _T is not defined add #include <tchar.h> to your project (in the precompiled header would be the best).
Steve
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It sounds like your program is set to compile for UNICODE, which implies that most Windows API functions that take strings expect UNICODE strings. The LPCWSTR in this case refers to a 'Long Pointer to Constant Wide-character STRing'.
The previous suggestion is correct; wrap your strings in the '_T("string")' macro call, which is #define'd in tchar.h. _T("string") evaluates to L"string" when compiling for UNICODE, and just "string" when compiling for MBCS.
Software Zen: delete this;
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Hello!!
I am doing MFC programming after a very long time. I had forgot all the basic concepts.
I am working on an mfc sdi application. Could anybody tell me how to add a dialog to it.
I want the dialog to be displayd when i click on a specific menu item.
Thanx
"If you change then change for the good."
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I think by default, there willl be a "About" dialog box when u choose the mfc sdi application, right? Just add a dialog from the resource and see how it map the message then that's it!
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i am looking on the net for a long time for an example code that shows how can i resolve Channel.
does anybody know?
thanks.
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can somebody help my please?
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I have a problem with my project .My project is about socket programming with multiThread.
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you have to create your own data object class like below.
...::OnConnected(sockthread* client)
{
client->data = new MyClientData;
..
}
one thread has to have one MyClientData.
this is the problem that mostly occured in socket programming.
Anderson Sheen (exteide@gmail.com)
The Extension IDE: http://www.exteide.com
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Hi everybody!
I would like to add graphical objects like buttons and so on to my project. But I do not want to use any wizzard.
In every book I bought there is just the information how to add things by using the wizzard.
Were can I get sources of information about Vc++ .Net, that I will be able to programm everything without a wizzard.
Thank you very much.
Georg
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like this?
class CCustomPrjToolWindow : public CFrameWnd
{
...
protected:
CButton btn;
};
CCustomPrjToolWindow::CCustomPrjToolWindow()
{
Create(NULL, "Custom Project Tool Window", WS_OVERLAPPEDWINDOW);
btn.Create( "button", WS_CHILD | WS_VISIBLE, CRect(20, 100, 150, 120), this, 0);
}
if you want to catch the btn click event, you have to make your own button class that is overrided from CButton.
Enjoy![Rose | [Rose]](https://www.codeproject.com/script/Forums/Images/rose.gif)
Anderson Sheen (exteide@gmail.com)
The Extension IDE: http://www.exteide.com
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Thank you so much I will try this!
Do you have any book recommendation how to learn this without the wizzard?
I have knowledge in programming C++ and I would need information how the framework works and its functionality.
Thank you very much in advance.
Georg
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I am doing project in vc.I have created a directory and allocated space for that directory,right now i wanted to lock or restrict the directory .How it can be done
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to lock the directory, use SetCurrentDirectory("c:\\folder");
and you can catch the state of file or dir by using FindFirstChangeNotification API series.
Enjoy
Anderson Sheen (exteide@gmail.com)
The Extension IDE: http://www.exteide.com
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EXTEIDE wrote: and you can catch the state of file or dir by using FindFirstChangeNotification API series.
Sorry to bug you Sir, How above statement relate to locking of Directory
"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow
cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
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I have tryied the code but i cant able to lock the directory.Give me the code
for me how to lock ok.
Please help me
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Hey everyone!
I have heard that .NET in Visual C++.NET 2003, will sometimes automatically add extra things to your programs, as it is "trying to help" but instead it adding all this other stuuf that I didn't want, and then stops my program from working. I'd like to know how to stop this from working and/or how to turn this off.
Thanks in advance, Rob
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What 'stuff' are you referring to? How does your program stop working?
Software Zen: delete this;
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it keeps adding headers and stuff to my program when i havn't even defined them
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Hi!
I have just recently downloaded Microsoft Visual C++ Express Edition and I've already added the SDK platform, and when I create a program in Win32 and include headers, it is unable to detect <windows.h> and <windowsx.h>. This is what the compiler error picks up:
Error 1 fatal error C1083: Cannot open include file: 'windows.h': No such file or directory
I have watched the videos, and have followed the directories, most of the projects will build, but when I debug the program errors pop up, there are many of then todo with this type. I need help as soon a possible, so can anyone help me with this problem?
Thanks in advance,
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Please not that I was using code from a book that was based on C? will that matter in visual C++ 2005 express?
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Hello -
I'm getting a runtime check failure #3 when I execute the program. I think my problem stems from converting a project from an earlier version (6.0?) to MS Visual C++ 7.1. Everything compiles and links (with warnings 4075 and 4098 [conflicting lib]) just fine. These errors didn't occur in 6.0 though.
The program runs fine until the end where Windows encounters an error. The debugger says a user breakpoint was called from the code. Additionally, a thread has exited with a code 0. It also says that the variable 'temp' is being used without being defined.
I hope this wasn't too vague. Thanks in advance for any help!
Chris
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