DOCERR: TabbedTextOut Tab Positions Really in Logical Units

 Last reviewed: December 2, 1996
Article ID: Q113253
The information in this article applies to:
  • Microsoft Windows Software Development Kit (SDK) for Windows version 3.1
  • Microsoft Win32 Application Programming Interface (API) included with:

    - Microsoft Windows NT versions 3.1 and 3.5

Both the printed and electronic documentation from the Windows 3.0 and 3.1 SDKs, as well as the Win32 SDK, state that the tab positions parameter of TabbedTextOut() is in device units. This is incorrect. The tab position array is in logical units. The Windows 3.0 and 3.1 SDKs refer to the tab position array as lpnTabPositions, while the Win32 SDK calls it lpnTabStopPositions.

The use of logical units can be seen by using a mapping mode other than the default MM_TEXT. The output of tabs using TabbedTextOut() reflects the mapping mode.

Additional reference words: 3.00 3.10 3.50 docerr
KBCategory: kbgraphic kbdocerr
KBSubcategory: GdiDrw

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Last reviewed: December 2, 1996
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