OpenDialog (ImageJ API)

java.lang.Object
- ij.io.OpenDialog

```
public class OpenDialog
extends Object
```
This class displays a dialog window from which the user can select an input file.

Constructor Summary

Constructors
Constructor	Description
`OpenDialog(String title)`	Displays a file open dialog with 'title' as the title.
`OpenDialog(String title, String path)`	Displays a file open dialog with 'title' as the title.
`OpenDialog(String title, String defaultDir, String defaultName)`	Displays a file open dialog, using the specified default directory and file name.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static String`	`getDefaultDirectory()`	Returns the current working directory, which may be null.
`String`	`getDirectory()`	Returns the selected directory.
`String`	`getFileName()`	Returns the selected file name.
`static String`	`getLastDirectory()`	Returns the path to the directory that contains the last file opened, or null if a file has not been opened.
`static String`	`getLastName()`	Returns the name of the last file opened by the user using a file open or file save dialog, or using drag and drop.
`String`	`getPath()`	Returns the selected file path or null if the dialog was canceled.
`static String`	`lookupPathVariable(String path)`
`static void`	`setDefaultDirectory(String defaultDir)`	Sets the current working directory.
`static void`	`setLastDirectory(String dir)`	Sets the path to the directory containing the last file opened by the user.
`static void`	`setLastName(String name)`	Sets the name of the last file opened by the user.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - OpenDialog
```
public OpenDialog(String title)
```
    Displays a file open dialog with 'title' as the title.
  - OpenDialog
```
public OpenDialog(String title,
                  String path)
```
    Displays a file open dialog with 'title' as the title. If 'path' is non-blank, it is used and the dialog is not displayed. Uses and updates the ImageJ default directory.
  - OpenDialog
```
public OpenDialog(String title,
                  String defaultDir,
                  String defaultName)
```
    Displays a file open dialog, using the specified default directory and file name.
- Method Detail
  - lookupPathVariable
```
public static String lookupPathVariable(String path)
```
  - getDirectory
```
public String getDirectory()
```
    Returns the selected directory.
  - getFileName
```
public String getFileName()
```
    Returns the selected file name.
  - getPath
```
public String getPath()
```
    Returns the selected file path or null if the dialog was canceled.
  - getDefaultDirectory
```
public static String getDefaultDirectory()
```
    Returns the current working directory, which may be null. The returned string always ends with the separator character ("/" or "\").
  - setDefaultDirectory
```
public static void setDefaultDirectory(String defaultDir)
```
    Sets the current working directory.
  - getLastDirectory
```
public static String getLastDirectory()
```
    Returns the path to the directory that contains the last file opened, or null if a file has not been opened.
  - setLastDirectory
```
public static void setLastDirectory(String dir)
```
    Sets the path to the directory containing the last file opened by the user.
  - getLastName
```
public static String getLastName()
```
    Returns the name of the last file opened by the user using a file open or file save dialog, or using drag and drop. Returns null if the users has not opened a file.
  - setLastName
```
public static void setLastName(String name)
```
    Sets the name of the last file opened by the user.

Class OpenDialog

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

OpenDialog

OpenDialog

OpenDialog

Method Detail

lookupPathVariable

getDirectory

getFileName

getPath

getDefaultDirectory

setDefaultDirectory

getLastDirectory

setLastDirectory

getLastName

setLastName