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Specifies how to open or create a file.
Syntax
typedef enum __MIDL___MIDL_itf_mfobjects_0000_0018_0002 {
MF_OPENMODE_FAIL_IF_NOT_EXIST = 0,
MF_OPENMODE_FAIL_IF_EXIST = 1,
MF_OPENMODE_RESET_IF_EXIST = 2,
MF_OPENMODE_APPEND_IF_EXIST = 3,
MF_OPENMODE_DELETE_IF_EXIST = 4
} MF_FILE_OPENMODE;
Constants
MF_OPENMODE_FAIL_IF_NOT_EXIST Value: 0 Open an existing file. Fail if the file does not exist. |
MF_OPENMODE_FAIL_IF_EXIST Value: 1 Create a new file. Fail if the file already exists. |
MF_OPENMODE_RESET_IF_EXIST Value: 2 Open an existing file and truncate it, so that the size is zero bytes. Fail if the file does not already exist. |
MF_OPENMODE_APPEND_IF_EXIST Value: 3 If the file does not exist, create a new file. If the file exists, open it. |
MF_OPENMODE_DELETE_IF_EXIST Value: 4 Create a new file. If the file exists, overwrite the file. |
Requirements
Requirement | Value |
---|---|
Minimum supported client | Windows Vista [desktop apps only] |
Minimum supported server | Windows Server 2008 [desktop apps only] |
Header | mfobjects.h (include Mfidl.h) |