OFN_ALLOWMULTISELECT top-level constant
The File Name list box allows multiple selections. If you also set the OFN_EXPLORER flag, the dialog box uses the Explorer-style user interface; otherwise, it uses the old-style user interface.
Implementation
@Deprecated('Use OPEN_FILENAME_FLAGS.OFN_ALLOWMULTISELECT instead')
const OFN_ALLOWMULTISELECT = 0x00000200;