[PATCH v2 0/2] MR10888: riched20: Implement EM_LINELENGTH with wParam==-1

[Rose Hellsing (＠axtlos)]

MS Comic Chat requires EM_LINELENGTH with wParam==-1 to be implemented in riched20 to allow typing space characters.

EM_LINELENGTH(-1) returns the number of unselected characters on the line that contains the current selection.

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  v2: riched20/tests: Add EM_LINELENGTH(-1) tests
      riched20: Implement EM_LINELENGTH with wParam==-1
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/10888