enumACommonDialogOpenOptions Enum

Name

Value

Description

acdlgOpenOptionsAllowMultiselect

0x00000200

Specifies that the File Name list box allows multiple selections.

acdlgOpenOptionsCreatePrompt

0x00002000

If the user specifies a file that does not exist, this flag causes the dialog box to prompt the user for permission to create the file.

acdlgOpenOptionsDirectory (v51)

0x10000000

This flag will allow  directory browsing and selection.

acdlgOpenOptionsExplorer

0x00080000

The dialog uses the new Explorer style.

acdlgOpenOptionsExtensionDifferent

0x00000400

Specifies that the user typed a file name extension that differs from the extension specified by DefaultExt. The function does not use this flag if DefaultExt is not specified.

acdlgOpenOptionsFileMustExist

0x00001000

Specifies that the user can type only names of existing files in the File Name entry field. If this flag is specified and the user enters an invalid name, the dialog box displays a warning in a message box. If this flag is specified, the acdlgPathMustExist flag is also used.

acdlgOpenOptionsHideReadOnly

0x00000004

Hides the Read Only check box.

acdlgOpenOptionsLongNames

0x00200000

For old style dialog boxes, this flag causes the dialog box to use long filenames. If this flag is not specified, or if the acdlgAllowMultiSel flag is also set, old style dialog boxes use short filenames (8.3 format) for filenames with spaces. Explorer style dialog boxes ignore this flag and always display long filenames.

acdlgOpenOptionsNoChangeDir

0x00000008

Restores the current directory to its original value if the user changed the directory while searching for files.

acdlgOpenOptionsNoDereferenceLinks

0x00100000

Directs the dialog box to return the path and file name of the selected shortcut (.LNK) file. If this value is not specified, the dialog box returns the path and file name of the file referenced by the shortcut.

acdlgOpenOptionsNoLongNames

0x00040000

For old style dialog boxes, this flag causes the dialog box to use short filenames (8.3 format). Explorer style dialog boxes ignore this flag and always display long filenames.

acdlgOpenOptionsNoReadOnlyReturn

0x00008000

Specifies that the returned file does not have the Read Only check box checked and is not in a write-protected directory.

acdlgOpenOptionsNoValidate

0x00000100

Specifies that the common dialog boxes allow invalid characters in the returned file name.

acdlgOpenOptionsOverwritePrompt

0x00000002

Causes the dialog box to generate a message box if the selected file already exists.

acdlgOpenOptionsPathMustExist

0x00000800

Specifies that the user can type only valid paths and filenames.

acdlgOpenOptionsReadOnly

0x00000001

Causes the Read Only check box to be checked initially when the dialog box is created.

acdlgOpenOptionsShareAware

0x00004000

The network sharing violation is ignored and the dialog box returns the selected file name.