Thread: Message Boxes

  1. #1
    Registered User
    Join Date
    May 2007

    Message Boxes

    I am having trouble getting a MessageBox to compile in my program. My code looks like this:
                         "this is string 1"
                         "this is string 2", MB_OK);
    I understand that parameter 1 is the window handle, and that parameters 2 and 3 are strings to display in the title bar and the body of the message box. When I try to compile, I will get a message "cannot convert constant char [#] to LPCWSTR". I try to use pointers to string objects or to char* arrays and I get "string undeclared identifier" or "cannot convert LPCWSTR to char__*64" (something like that, anyhow). I really hope this is something stupid that I am missing because message boxes will really help me out a lot. Thanks.

  2. #2
    Registered User
    Join Date
    Jan 2006
                         L"this is string 1",
                         L"this is string 2", MB_OK);

  3. #3
    Registered User Joelito's Avatar
    Join Date
    Mar 2005
    Tijuana, BC, México
    Sounds that you are using VS can also remove the unicode type in your project settings. Search the forums, there are similar topics.
    * PC: Intel Core 2 DUO E6550 @ 2.33 GHz with 2 GB RAM: Archlinux-i686 with xfce4.
    * Laptop: Intel Core 2 DUO T6600 @ 2.20 GHz with 4 GB RAM: Archlinux-x86-64 with xfce4.

  4. #4
    Cat without Hat CornedBee's Avatar
    Join Date
    Apr 2003
    Compiling as non-Unicode is an option, but making your program Unicode-compatible is a better one.

    TEXT("this is string 1")
    All the buzzt!

    "There is not now, nor has there ever been, nor will there ever be, any programming language in which it is the least bit difficult to write bad code."
    - Flon's Law

  5. #5
    Registered User
    Join Date
    May 2007
    Unicode......*scratches head* Don't know anything about that yet. *

    So far, using
    MessageBox(hWnd,TEXT("string 1"),L"string 2",MB_OK);
    either method that you guys presented works. The problem is now, I cannot get any function that requires a string argument to accept a variable; all string arguments must be inserted explicitly. It works BUT it is a pain in the neck. I am also programming with DirectX so being able to use filenames in variables would be handy. I tried using reinterpret_cast or LPWSTR("string") but that turns it into gibberish. Thanks for your help so far.

  6. #6
    Hurry Slowly vart's Avatar
    Join Date
    Oct 2006
    Rishon LeZion, Israel
    variable should be TCHAR* not char*
    All problems in computer science can be solved by another level of indirection,
    except for the problem of too many layers of indirection.
    – David J. Wheeler

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