| Constant | Value | Description |
| cdlOFNAllowMultiselect | &H200 | Specifies that the File Name list box allows multiple selections. The user can select more than one file at run time by pressing the SHIFT key and using the UP ARROW and DOWN ARROW keys to select the desired files. When this is done, the FileName property returns a string containing the names of all selected files. The names in the string are delimited by spaces. |
| cdlOFNCreatePrompt | &H2000 | Specifies that the dialog box prompts the user to create a file that doesn't currently exist. This flag automatically sets the cdlOFNPathMustExist and cdlOFNFileMustExist flags. |
| cdlOFNExplorer | &H80000 | Use the Explorer-like Open A File dialog box template. Common dialogs that use this flag do not work under Windows NT using the Windows 95 shell. |
| CdlOFNExtensionDifferent | &H400 | Indicates that the extension of the returned filename is different from the extension specified by the DefaultExt property. This flag isn't set if the DefaultExt property is Null, if the extensions match, or if the file has no extension. This flag value can be checked upon closing the dialog box. |
| cdlOFNFileMustExist | &H1000 | Specifies that the user can enter only names of existing files in the File Name text box. If this flag is set and the user enters an invalid filename, a warning is displayed. This flag automatically sets the cdlOFNPathMustExist flag. |
| cdlOFNHelpButton | &H10 | Causes the dialog box to display the Help button. |
| cdlOFNHideReadOnly | &H4 | Hides the Read Only check box. |
| cdlOFNLongNames | &H200000 | Use long filenames. |
| cdlOFNNoChangeDir | &H8 | Forces the dialog box to set the current directory to what it was when the dialog box was opened. |
| CdlOFNNoDereferenceLinks | &H100000 | Do not dereference shell links (also known as shortcuts). By default, choosing a shell link causes it to be dereferenced by the shell. |
| cdlOFNNoLongNames | &H40000 | Do not use long file names. |
| CdlOFNNoReadOnlyReturn | &H8000 | Specifies that the returned file won't have the Read Only attribute set and won't be in a write-protected directory. |
| cdlOFNNoValidate | &H100 | Specifies that the common dialog box allows invalid characters in the returned filename. |
| cdlOFNOverwritePrompt | &H2 | Causes the Save As dialog box to generate a message box if the selected file already exists. The user must confirm whether to overwrite the file. |
| cdlOFNPathMustExist | &H800 | Specifies that the user can enter only valid paths. If this flag is set and the user enters an invalid path, a warning message is displayed. |
| cdlOFNReadOnly | &H1 | Causes the Read Only check box to be initially checked when the dialog box is created. This flag also indicates the state of the Read Only check box when the dialog box is closed. |
| CdlOFNShareAware | &H4000 | Specifies that sharing violation errors will be ignored. |
| Constant | Value | Description |
| cdlCCFullOpen | &H2 | Entire dialog box is displayed, including the Define Custom Colors section |
| cdlCCShowHelp | &H8 | Causes the dialog box to display a Help button |
| cdlCCPreventFullOpen | &H4 | Disables the Define Custom Colors command button and prevents the user from defining custom colors |
| cdlCCRGBInit | &H1 | Sets the initial color value for the dialog box |
| Constant | Value | Description |
| cdlCFANSIOnly | &H400 | Specifies that the dialog box allows only a selection of the fonts that use the Windows character set. If this flag is set, the user won't be able to select a font that contains only symbols. |
| cdlCFApply | &H200 | Enables the Apply button on the dialog box. |
| cdlCFBoth | &H3 | Causes the dialog box to list the available printer and screen fonts. The hDC property identifies the device context associated with the printer. |
| cdlCFEffects | &H100 | Specifies that the dialog box enables strikethrough, underline, and color effects. |
| cdlCFFixedPitchOnly | &H4000 | Specifies that the dialog box selects only fixed-pitch fonts. |
| cdlCFForceFontExist | &H10000 | Specifies that an error message box is displayed if the user attempts to select a font or style that doesn't exist. |
| cdlCFHelpButton | &H4 | Causes the dialog box to display a Help button. |
| cdlCFLimitSize | &H2000 | Specifies that the dialog box selects only font sizes within the range specified by the Min and Max properties. |
| cdlCFNoFaceSel | &H80000 | No font name selected. |
| cdlCFNoSimulations | &H1000 | Specifies that the dialog box doesn't allow graphic device interface (GDI) font simulations. |
| cdlCFNoSizeSel | &H200000 | No font size selected. |
| cdlCFNoStyleSel | &H100000 | |
| cdlCFNoVectorFonts | &H800 | Specifies that the dialog box doesn't allow vector-font selections. |
| cdlCFPrinterFonts | &H2 | Causes the dialog box to list only the fonts supported by the printer, specified by the hDC property. |
| cdlCFScalableOnly | &H20000 | Specifies that the dialog box allows only the selection of fonts that can be scaled. |
| cdlCFScreenFonts | &H1 | Causes the dialog box to list only the screen fonts supported by the system. |
| cdlCFTTOnly | &H40000 | Specifies that the dialog box allows only the selection of TrueType fonts. |
| cdlCFWYSIWYG | &H8000 | Specifies that the dialog box allows only the selection of fonts that are available on both the printer and on screen. If this flag is set, the cdlCFBoth and cdlCFScalableOnly flags should also be set. |
| Constant | Value | Description |
| cdlPDAllPages | &H0 | Returns or sets the state of the All Pages option button. |
| cdlPDCollate | &H10 | Returns or sets the state of the Collate check box. |
| cdlPDDisablePrintToFile | &H80000 | Disables the Print To File check box. |
| cdlPDHelpButton | &H800 | Causes the dialog box to display the Help button. |
| cdlPDHidePrintToFile | &H100000 | Hides the Print To File check box. |
| cdlPDNoPageNums | &H8 | Disables the Pages option button and the associated edit control. |
| cdlPDNoSelection | &H4 | Disables the Selection option button. |
| cdlPDNoWarning | &H80 | Prevents a warning message from being displayed when there is no default printer. |
| cdlPDPageNums | &H2 | Returns or sets the state of the Pages option button. |
| cdlPDPrintSetup | &H40 | Causes the system to display the Print Setup dialog box rather than the Print dialog box. |
| cdlPDPrintToFile | &H20 | Returns or sets the state of the Print To File check box. |
| cdlPDReturnDC | &H100 | Returns a device context for the printer selection made in the dialog box. The device context is returned in the dialog box's hDC property. |
| cdlPDReturnDefault | &H400 | Returns default printer name. |
| cdlPDReturnIC | &H200 | Returns an information context for the printer selection made in the dialog box. An information context provides a fast way to get information about the device without creating a device context. The information context is returned in the dialog box's hDC property. |
| cdlPDSelection | &H1 | Returns or sets the state of the Selection option button. If neither cdlPDPageNums nor cdlPDSelection is specified, the All option button is in the selected state. |
| cdlPDUseDevModeCopies | &H40000 | If a printer driver doesn't support multiple copies, setting this flag disables the copies edit control. If a driver does support multiple copies, setting this flag indicates that the dialog box stores the requested number of copies in the Copies property. |
| Constant | Value | Description |
| cdlHelpCommandHelp | &H102 | Displays Help for a particular command |
| cdlHelpContents | &H3 | Displays the contents topic in the current Help file |
| cdlHelpContext | &H1 | Displays Help for a particular topic |
| cdlHelpContextPopup | &H8 | Displays a topic identified by a context number |
| cdlHelpForceFile | &H9 | Creates a Help file that displays text in only one font |
| cdlHelpHelpOnHelp | &H4 | Displays Help for using the Help application itself |
| cdlHelpIndex | &H3 | Displays the index of the specified Help file |
| cdlHelpKey | &H101 | Displays Help for a particular keyword |
| cdlHelpPartialKey | &H105 | Calls the search engine in Windows Help |
| cdlHelpQuit | &H2 | Notifies the Help application that the specified Help file is no longer in use |
| cdlHelpSetContents | &H5 | Designates a specific topic as the contents topic |
| cdlHelpSetIndex | &H5 | Sets the current index for multi-index Help |