CreateWindowEx(...) help

This is a discussion on CreateWindowEx(...) help within the Windows Programming forums, part of the Platform Specific Boards category; I was wondering if anyone could tell me why it is this function will return an invalid handle to a ...

  1. #1
    Registered User Dohojar's Avatar
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    CreateWindowEx(...) help

    I was wondering if anyone could tell me why it is this function will return an invalid handle to a window (child or parent). I wrote this code and the hCancel variable keeps returning a NULL handle. I can see no reason for it. If anyone can tell me why windows does this, please let me know. This is not the first time I have had this stupid error but it is the first time I got it from a child window. Anyways here is the code in an attached file. Any help is appreciated.


    Attached Files Attached Files
    Dohojar Moajbuj
    Time is the greatest teacher, too bad it kills all its students

  2. #2
    brainless
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    I don't think that there is any window class called 'CancelButton'. Why don't you just use the 'button' window class.

  3. #3
    brainless
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    P.S. GetLastError() and FormatMessage() are your friends.

  4. #4
    It's full of stars adrianxw's Avatar
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    Review the CreateWindowEx() function. The second parameter is a registered Windows class. Unless you have previously registered a class called "CancelButton", windows will not find it and correctly fail. I suspect you want "button" in there.
    Wave upon wave of demented avengers march cheerfully out of obscurity unto the dream.

  5. #5
    Registered User Dohojar's Avatar
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    I changed the "Cancel Button" to just "button" and it works fine now..... so I take it there is a class called button?
    Thanks for all the help guys. it is appreciated.
    Dohojar Moajbuj
    Time is the greatest teacher, too bad it kills all its students

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