Commands for Simulated Fonts
Important
The modern print platform is Windows' preferred means of communicating with printers. We recommend that you use Microsoft's IPP inbox class driver, along with Print Support Apps (PSA), to customize the print experience in Windows 10 and 11 for printer device development.
For more information, see Modern print platform and the Print support app design guide.
The following table lists the commands for controlling simulated fonts. All commands are specified using the command entry format.
| Command | Description | Comments |
|---|---|---|
| CmdBoldOff | Command to disable bolding. | Optional. Must be specified if CmdBoldOn is specified. |
| CmdBoldOn | Command to enable bolding. | Optional. If specified, Unidrv sends this command to enable bolding and sends CmdBoldOff to disable bolding. |
| CmdClearAllFontAttribs | Single command to disable bold, italic, and underline capabilities. | Optional. Can be specified if the printer supports bold, italic, or underlining, but supports only a single command to disable them all. Use instead of CmdBoldOff, CmdItalicOff and CmdUnderlineOff. |
| CmdItalicOff | Command to disable italics. | Optional. Must be specified if CmdItalicOn is specified. |
| CmdItalicOn | Command to enable italics. | Optional. If specified, Unidrv sends this command to enable italics and sends CmdItalicOff to disable italics. |
| CmdSelectDoubleByteMode | Command to enable double-byte printing. | Optional. Must be specified if CmdSelectSingleByteMode is specified. |
| CmdSelectSingleByteMode | Command to enable single-byte printing. | Optional. Must be specified if the printer can be switched between single-byte and double-byte modes. |
| CmdSetFontSim | Single command to set bold, italic, underline, and strike-through capabilities. | Optional. Must be specified if font characteristics must be set each time the font is used (for printers that do not store font characteristics). |
| CmdStrikeThruOff | Command to disable strike-through. | Optional. Must be specified if CmdStrikeThruOn is specified. |
| CmdStrikeThruOn | Command to enable strike-through. | Optional. If specified, Unidrv sends this command to enable strike-through and sends CmdStrikeThruOff to disable strike-through. |
| CmdUnderlineOff | Command to disable underlining. | Optional. Must be specified if CmdUnderlineOn is specified. |
| CmdUnderlineOn | Command to enable underlining. | Optional. If specified, Unidrv sends this command to enable underlining and sends CmdUnderlineOff to disable underlining. |
| CmdVerticalPrintingOff | Command to disable vertical printing. | Optional. Must be specified if CmdVerticalPrintingOn is specified. |
| CmdVerticalPrintingOn | Command to enable vertical printing. | Optional. Must be specified if the printer supports vertical printing. |
| CmdWhiteTextOff | Command to disable printing white text. | Optional. Must be specified if CmdWhiteTextOn is specified. |
| CmdWhiteTextOn | Command to enable printing white text. | Optional. If specified, Unidrv sends this command to enable printing white text and sends CmdWhiteTextOff to disable printing white text. (This command is provided for backwards compatibility with GPC 3.0.) |