Win32 Application Tutorials Not Working....

[PlaGuE]

This is stemmed from this topic i made @ http://vbforums.com/showthread.php?t=430985


For Some Reason Ever Since i re-formatted my computer and re-installed everthing i needed to. Such as The Platform SDK(R2), DirectX 9 August 2006 SDK.
I havent been able to compile projects that i used to be able to compile.

For Example. This is just a simple app that prompts a mesage box upon loading.

This is the code:

#include <windows.h> 
 
int WINAPI WinMain( HINSTANCE hInstance,HINSTANCE hPrevInstance ,LPSTR lpCmdLine ,int nCmdShow){ 
 
    MessageBox( NULL , "Hello World!", "Win32 Tutorial" , MB_OK ); 
 
    return 0; 
}

This used to run in VC++ 2005 Express Edition(Tho idk if it was still a Beta..LOL)

Anyways....Is it just me... or do i need to get Visual Studio 2005 to fix this problem...

However... This same example works with Dev-C++. But since i want to work with DirectX, im going to stick with VC++ 2005 Ex Ed... soon to be VS 2005.

:For Those that hate double posters:
You might think im double posting... but im not.This is a totally new question surrounding an old question

[CornedBee]

So what is the error?

[PlaGuE]

hehe...ooops.
forgot error...

Empty Project[Checked]:

------ Build started: Project: messgebox, Configuration: Debug Win32 ------
Compiling...
winmain.cpp
c:\documents and settings\hp_owner\my documents\visual studio 2005\projects\messgebox\messgebox\winmain.cpp(5) : error C2664: 'MessageBoxW' : cannot convert parameter 2 from 'const char [13]' to 'LPCWSTR'
        Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast
Build log was saved at "file://c:\Documents and Settings\HP_Owner\My Documents\Visual Studio 2005\Projects\messgebox\messgebox\Debug\BuildLog.htm"
messgebox - 1 error(s), 0 warning(s)
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

Empty Project[Unchecked]:

------ Build started: Project: asdf, Configuration: Debug Win32 ------
Compiling...
asdf.cpp
c:\documents and settings\hp_owner\my documents\visual studio 2005\projects\asdf\asdf\asdf.cpp(10) : error C2664: 'MessageBoxW' : cannot convert parameter 2 from 'const char [13]' to 'LPCWSTR'
        Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast
Build log was saved at "file://c:\Documents and Settings\HP_Owner\My Documents\Visual Studio 2005\Projects\asdf\asdf\Debug\BuildLog.htm"
asdf - 1 error(s), 0 warning(s)
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

This is using VC++ 2005 Express Edition..

So would this be fixed by installing Visual Studio 2005?

[Crunchy Cat]

That MessageBox() call is expecting a Unicode string literal and it's getting a Single Byte Character Set literal. Putting an L in front of each string literal might resolve the problem:

MessageBox( NULL , L"Hello World!", L"Win32 Tutorial" , MB_OK );

[PlaGuE]

hmm...k i'll try after work tomorrow.

[CornedBee]

Better to wrap them in TEXT(), so that it works for both ANSI and UNICODE compiles.
MessageBox( NULL , TEXT("Hello World!"), TEXT("Win32 Tutorial") , MB_OK );

[PlaGuE]

*No Bump*

was there some sort of an update since august 2005?
Which is the last time i has re-installed "everything". Because i've been able to compile the tutorials from functionx.com/win32/ and gameprogrammer.org (win32 tutorials) since then.until last month...

I just find it wierd.... cuz now ima have a harder time in learning C++/Win32/DirectX

[CornedBee]

Is it always the same error or different errors?

[PlaGuE]

With Every tutorial its the same error.. but i guess i cant use those tuts anymore ... and i cant find any "newer" win32 Tutorials... so its hard for me to learn.


BTW... I now have VS 2005 Standard Edition installed.(Just thought i let you know i dont use Express Edition, anymore..)



What i guess im really trying to ask now is... Know any sites/books that offer Win32 Tutorials/Examples that were published since .... Jan 2006? lol..

I tried looking thru MSDN for Win32 Examples/Tutorials... but i couldnt find any.

[CornedBee]

What error?

Old tutorials should work. Aside from the instructions on how to set up a project, it's absurd that they wouldn't. After all, old programs need to work, too.

[PlaGuE]

the code in my first post used to work in VC++ 2005[Before Re-Formatting of HardDrive] and Dev-C++. But now it only works in Dev-C++. But when i do VC++ 2005 .... it errors unless i change the strings to "L"iteral strings...

So maybe just maybe... i had an option on in VC++ 2005 that made strings literal... or... im just losing my mind... since i REALLY WANT TO LEARN C++/Win32.. So that i can go onto DirectX..

also, im sorry if i keep ranting about the same thing... Its just... i want to learn... but i keep having road blocks, the size of grand canyon, in my way.

[CornedBee]

2005 has Unicode compilation enabled by default. Wrap every string literal in the TEXT() macro and it should work.