| Class | Description | |
|---|---|---|
 | BaseForm | Base class for all custom forms in C1Preview. |
| DocumentInfoForm | Represents a System.Windows.Forms.Form that allows a user to edit C1.C1Preview.DocumentInfo associated with a document. |
| OutputRangeForm | Represents a form that can be used to enter a range of pages. |
| ProgressForm | Represents a form that can be used to show printing or export progress. |
| TagsInputForm | Represents the standard form used to edit the C1.C1Preview.C1PrintDocument.Tags collection of a C1.C1Preview.C1PrintDocument. |
| TagsInputFormBase | Describes the base form for tags input. |
| WarningForm | Represents a form used to show a warning. |