Options property
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Options property
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| dcOpenDialog and dcSaveDialog components.
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| type
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| TOpenOption = (ofReadOnly, ofOverwritePrompt, ofHideReadOnly, ofNoChangeDir, ofShowHelp, ofNoValidate, ofAllowMultiSelect, ofExtensionDifferent, ofPathMustExist, ofFileMustExist, ofCreatePrompt, ofShareAware, ofNoReadOnlyReturn, ofNoTestFileCreate, ofNoNetworkButton, ofNoLongNames, ofOldStyleDialog, ofNoDereferenceLinks, ofEnableIncludeNotify, ofEnableSizing);
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| TOpenOptions = set of TOpenOption;
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| property Options: TOpenOptions;
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| The Options property determines the appearance and behaviour of the file-selection dialog. Use the Options property to customize the appearance and functionality of the dialog. The possible values of Options are
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| Value | Meaning
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| ofReadOnly | Selects the Open As Read Only check box by default when the dialog opens.
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| ofOverwritePrompt | Generates a warning message if the user tries to select a file name that is already in use, asking whether to overwrite the existing file. (Use with T[dc]SaveDialog and TSavePictureDialog.)
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| ofHideReadOnly | Removes the Open As Read Only check box from the dialog.
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| ofNoChangeDir | After the user clicks OK, resets the current directory to whatever it was before the file-selection dialog opened.
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| ofShowHelp | Displays a Help button in the dialog.
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| ofNoValidate | Disables checking for invalid characters in file names. Allows selection of file names with invalid characters.
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| ofAllowMultiSelect | Allows users to select more than one file in the dialog.
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| ofExtensionDifferent | This flag is turned on at runtime whenever the selected filename has an extension that differs from DefaultExt. If you use this flagin an application, remember to reset it.
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| ofPathMustExist | Generates an error message if the user tries to select a file name with a nonexistent directory path.
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| ofFileMustExist | Generates an error message if the user tries to select a nonexistent file. (only applies to Open dialogs).
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| ofCreatePrompt | Generates a warning message if the user tries to select a nonexistent file, asking whether to create a new file with the specified name.
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| ofShareAware | Ignores sharing errors and allows files to be selected even when sharing violations occur.
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| ofNoReadOnlyReturn | Generates an error message if the user tries to select a read-only file.
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| ofNoTestFileCreate | Disables checking for network file protection and inaccessibility of disk drives. Applies only when the user tries to save a file in a create-no-modify shared network directory.
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| ofNoNetworkButton | Removes the Network button (which opens a Map Network Drive dialog) from the file-selection dialog. Applies only if the ofOldStyleDialog flag is on.
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| ofNoLongNames | Displays 8.3-character file names only. This option is only valid if Options also includes ofOldStyleDialog.
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| ofOldStyleDialog | Creates the older style of file-selection dialog.
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| ofNoDereferenceLinks | Disables dereferencing of Windows shortcuts. If the user selects a shortcut, assigns to FileName the path and file name of the shortcut itself (the .LNK file), rather than the file linked to the shortcut.
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| ofEnableIncludeNotify | Sends include notification messages to the dialog. (Windows 2000 and later.)
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| ofEnableSizing | Allows users to resize the dialog.
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