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Constraints between selections and installations

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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.

Sometimes it's necessary to specify that a certain option can't be selected if some other option is installed, or that a certain option can't be selected if some other option isn't installed. For example, a user shouldn't be able to select tabloid paper if a printer's large format paper tray isn't installed.

To specify relationships between the selection of certain options with the installation state of other options, use *InstalledConstraints and *NotInstalledConstraints entries. Their format is:

InstalledConstraints: *FeatureName.OptionName

NotInstalledConstraints: *FeatureName.OptionName

where FeatureName is the name of a feature and OptionName is the name of an option associated with the feature. If the argument is a feature, the period and OptionName aren't included.

An *InstalledConstraints or *NotInstalledConstraints entry must be placed inside a *Feature or *Option entry. For example, to indicate that a user shouldn't be able to select tabloid paper if a printer's large format paper tray isn't installed, the following entries can be used:

*Feature: InputBin
{
    *Option: LARGEFMT
    {
        Installable?: TRUE
        NotInstalledConstraints: PaperSize.TABLOID
    }
}

If a feature or option includes an *InstalledConstraints or *NotInstalledConstraints entry, the feature or option's *Installable? attribute must be set to TRUE.