EditControl EM_GETLINE Problem

This is a discussion on EditControl EM_GETLINE Problem within the Windows Programming forums, part of the Platform Specific Boards category; I'm trying to read the contents of an edit control box line by line. The program I am reading from ...

  1. #1
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    Feb 2005
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    EditControl EM_GETLINE Problem

    I'm trying to read the contents of an edit control box line by line. The program I am reading from was written in Visual Basic, but my program is written in C. I'm having problems with EM_GETLINE. It works for the first line, but all subsequent line requests fail. This is what I'm calling:
    Code:
    printf("Chars copied: %d\n", SendMessage(hwnd, EM_GETLINE, (WPARAM) linenum,
           (LPARAM) (LPCSTR) &textName));
    Are there any alternative ways of reading text line-by-line from an edit control box?

  2. #2
    Registered User
    Join Date
    Feb 2005
    Posts
    54
    Figured it out. Turns out, I did not set the first word in the buffer. It had to be a 16-bit value representing the maximum number of bytes allowed in the buffer.
    New code:
    Code:
      
    textName[0] = (char) 80;
    printf("Chars copied: %d\n", SendMessage(hwnd, EM_GETLINE, (WPARAM) linenum,
           (LPARAM) (LPCSTR) &textName));

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