DlgDirListComboBoxW function (winuser.h)

Replaces the contents of a combo box with the names of the subdirectories and files in a specified directory. You can filter the list of names by specifying a set of file attributes. The list of names can include mapped drive letters.

Syntax

int DlgDirListComboBoxW(
  [in]      HWND   hDlg,
  [in, out] LPWSTR lpPathSpec,
  [in]      int    nIDComboBox,
  [in]      int    nIDStaticPath,
  [in]      UINT   uFiletype
);

Parameters

[in] hDlg

Type: HWND

A handle to the dialog box that contains the combo box.

[in, out] lpPathSpec

Type: LPTSTR

A pointer to a buffer containing a null-terminated string that specifies an absolute path, relative path, or file name. An absolute path can begin with a drive letter (for example, d:) or a UNC name (for example, \\machinename\sharename).

The function splits the string into a directory and a file name. The function searches the directory for names that match the file name. If the string does not specify a directory, the function searches the current directory.

If the string includes a file name, the file name must contain at least one wildcard character (? or ). If the string does not include a file name, the function behaves as if you had specified the asterisk wildcard character () as the file name. All names in the specified directory that match the file name and have the attributes specified by the uFiletype parameter are added to the list displayed in the combo box.

[in] nIDComboBox

Type: int

The identifier of a combo box in the hDlg dialog box. If this parameter is zero, DlgDirListComboBox does not try to fill a combo box.

[in] nIDStaticPath

Type: int

The identifier of a static control in the hDlg dialog box. DlgDirListComboBox sets the text of this control to display the current drive and directory. This parameter can be zero if you do not want to display the current drive and directory.

[in] uFiletype

Type: UINT

A set of bit flags that specifies the attributes of the files or directories to be added to the combo box. This parameter can be a combination of the following values.

Return value

Type: int

If the function succeeds, the return value is nonzero.

If the function fails, the return value is zero. For example, if the string specified by lpPathSpec is not a valid path, the function fails. To get extended error information, call GetLastError.

Remarks

If lpPathSpec specifies a directory, DlgDirListComboBox changes the current directory to the specified directory before filling the combo box. The text of the static control identified by the nIDStaticPath parameter is set to the name of the new current directory.

DlgDirListComboBox sends the CB_RESETCONTENT and CB_DIR messages to the combo box.

Microsoft Windows NT 4.0 and later: If uFiletype includes the DDL_DIRECTORY flag and lpPathSpec specifies a first-level directory, such as C:\TEMP, the combo box will always include a ".." entry for the root directory. This is true even if the root directory has hidden or system attributes and the DDL_HIDDEN and DDL_SYSTEM flags are not specified. The root directory of an NTFS volume has hidden and system attributes.

Security Warning:  Using this function incorrectly might compromise the security of your program. Incorrect use of this function includes having lpPathSpec indicate a non-writable buffer, or a buffer without a null-termination. You should review the Security Considerations: Microsoft Windows Controls before continuing.

Microsoft Windows NT 4.0 and later: The list displays long file names, if any.

Windows 95 or later: The list displays short file names (the 8.3 form). You can use the SHGetFileInfo or GetFullPathName functions to get the corresponding long file name.

Windows 95 or later: DlgDirListComboBoxW is supported by the Microsoft Layer for Unicode. To use this, you must add certain files to your application, as outlined in Microsoft Layer for Unicode on Windows Me/98/95 Systems.

Requirements

See also

DlgDirList

DlgDirSelectComboBoxEx

Reference