EM_GETFIRSTVISIBLELINE message: Error in Windows 7 or undocumented change?

Question

According to the documentation: 

http://msdn.microsoft.com/en-us/library/bb761574(VS.85).aspx

Return Value

The return value is the zero-based index of the uppermost visible line in a multiline edit control. 

Edit controls: For single-line edit controls, the return value is the zero-based index of the first visible character. 

Rich edit controls: For single-line rich edit controls, the return value is zero.

However, if this works fine in Windows XP, Windows 7 is always returned 0, no matter what character will be visible in single-line edit control text

What is it? Bug in Windows 7 or undocumented change?

Answer 1

Up. 

Answer 2

Hello, I have the same problem in Windows Vista. Have you found a solution for this or a workaround?