INFO: Stroke Fonts Marked as OEM Character Set Are ANSI

• Microsoft Windows Software Development Kit (SDK) 3.1
• Microsoft Win32 Application Programming Interface (API), used with:
  • Microsoft Windows NT, versions 3.5, 3.51, 4.0
  • Microsoft Windows 95

SUMMARY

There are three stroke (or vector) fonts packaged with Windows versions 3.0 and 3.1 and Windows NT: Roman, Script, and Modern. These fonts are marked as belonging to the OEM character set when, in fact, they belong to the ANSI character set.

NOTE: Windows 95 provides only the Modern vector font. The Roman and Script fonts are included in the True Type fonts shipped with the system.

The OEM character set is the character set used by the hardware device on which Windows is running (for example, the IBM PC). The IBM PC OEM character set and ANSI character set are listed in "Microsoft Windows Software Development Kit Reference Volume 2" for the Windows SDK version 3.0 and in "Programmer's Reference, Volume 3: Messages, Structures, and Macros" for the Windows SDK version 3.1.

The fonts were marked in this manner for two reasons. First, in previous versions of Windows, the stroke fonts did include non-ANSI characters. Second, mismarking the character set ensures proper font mapping. The character-set attribute of a font is assigned a very high penalty weight in the font mapping scheme. If stroke fonts were not marked as using the OEM character set, a stroke font might be chosen by the font mapper [during a SelectObject() call] instead of a raster font when a requested raster font size is not available. This behavior occurs because most raster fonts belong to the ANSI character set, character size has much lower penalty weight than character set, and stroke fonts can be scaled to any desired size. Some raster fonts can be scaled; however, they can be scaled only to specific sizes.

Additional query words: 3.00 3.10 3.50 4.00 win16sdk

Keywords : kbNTOS350 kbNTOS351 kbNTOS400 kbWinOS95 kbSDKWin16
Version : WINDOWS:3.1,95; winnt:3.5,3.51,4.0
Platform : WINDOWS winnt
Issue type : kbinfo