[Overview][Constants][Classes][Procedures and functions][Index] | Reference for unit 'ExtDlgs' (#lcl)

# TPreviewFileControl

[Properties (by Name)] [Methods (by Name)] [Events (by Name)]

TPreviewFileControl - a windowed control allowing the contents of a file to be previewed before opening.

## Declaration

Source position: extdlgs.pas line 37

`type TPreviewFileControl = class(TWinControl)`
`protected`
`class procedure WSRegisterClass; override;` |  | Registers this component class with the current WidgetSet.
`class function GetControlClassDefaultSize; override;` |  | Returns the default dimensions for new instances of the class.
`procedure SetPreviewFileDialog();` |  | Sets the value for the PreviewFileDialog property.
`procedure CreateParams(); override;`
`public`
`constructor Create(); override;` |  | Constructor for the class instance.
`property PreviewFileDialog: TPreviewFileDialog; [rw]` |  | Dialog which created the file preview control.
`end;`

## Inheritance

`TPreviewFileControl` |  | TPreviewFileControl - a windowed control allowing the contents of a file to be previewed before opening.
`TWinControl` |  | Implements a windowed control which can contain other child controls.
`TControl` |  | The base class for visible controls.
`TLCLComponent` |  | The base class for LCL components which have an associated widget.
`TComponent`
?
`TObject`

## Description

TPreviewFileControl is a TWinControl descendant which implements a windowed control that allows the content in a file to be viewed in a TPreviewFileDialog class instance.

TPreviewFileControl is the type used to implement the PreviewFileControl property in TPreviewFileDialog.

## See also

TPreviewFileDialog.PreviewFileControl |  | Windowed control used to preview the contents of a file in the dialog.