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Thread: Cannot convert from const char to LPCWSTR

  1. #1
    Join Date
    Dec 2017
    Posts
    38

    Cannot convert from const char to LPCWSTR

    I have a code that worked in Code Blocks but doesn't in Visual Studio.

    Code:
    element = CreateWindow("STATIC", "Label: ", WS_VISIBLE | WS_CHILD, 30, 100, 100, 30, hwnd, NULL, NULL, NULL);
    When compiling I get the error:

    Code:
    error C2664: 'HWND CreateWindowExW(DWORD,LPCWSTR,LPCWSTR,DWORD,int,int,int,int,HWND,HMENU,HINSTANCE,LPVOID)': cannot convert argument 2 from 'const char [7]' to 'LPCWSTR'

  2. #2
    2kaud's Avatar
    2kaud is offline Super Moderator Power Poster
    Join Date
    Dec 2012
    Location
    England
    Posts
    6,516

    Re: Cannot convert from const char to LPCWSTR

    You are compiling for unicode. if you don't want unicode then change the solution property to multi-byte character set. If you do want to compile as unicode, then

    Code:
    element = CreateWindow(L"STATIC", L"Label: ", WS_VISIBLE | WS_CHILD, 30, 100, 100, 30, hwnd, NULL, NULL, NULL);
    Also, if you want to use unicode elsewhere, but ascii for createwindow, then

    Code:
    element = CreateWindowA("STATIC", "Label: ", WS_VISIBLE | WS_CHILD, 30, 100, 100, 30, hwnd, NULL, NULL, NULL);
    All advice is offered in good faith only. All my code is tested (unless stated explicitly otherwise) with the latest version of Microsoft Visual Studio (using the supported features of the latest standard) and is offered as examples only - not as production quality. I cannot offer advice regarding any other c/c++ compiler/IDE or incompatibilities with VS. You are ultimately responsible for the effects of your programs and the integrity of the machines they run on. Anything I post, code snippets, advice, etc is licensed as Public Domain https://creativecommons.org/publicdomain/zero/1.0/ and can be used without reference or acknowledgement. Also note that I only provide advice and guidance via the forums - and not via private messages!

    C++17 Compiler: Microsoft VS2017 (15.9.4)

  3. #3
    Join Date
    Dec 2017
    Posts
    38

    Re: Cannot convert from const char to LPCWSTR

    Thank you

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