ArcOpenDataW structure

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Passed to function ArcOpenW.

Syntax C++

typedef struct ArcOpenDataW {

wchar_t *ArcNameW;

unsigned int OpenMode;

unsigned int out_OpenResult;

unsigned int out_ArcPropFlags;

unsigned int ExFlags;

LONG_PTR Session;

ArcProcessDataProcW ProcessDataW;

LONG_PTR Reserved[8];

};

Members

ArcNameW

Type: wchar_t*

Name of open archive file.

OpenMode

Type: unsigned int

One of the following:

Code

Comments

PK_OM_LIST

Archive to be open for reading file list only.

PK_OM_EXTRACT

Archive to be open for unpacking or testing.

out_OpenResult

Type: unsigned int

Error code if any according to the list.

out_ArcPropFlags

Type: unsigned int

Bit flags field. Bit meanings:

Code	Comments
PK_ARC_VOLUME 0x0001	Volume
PK_ARC_COMMENT 0x0002	Archive contains comments
PK_ARC_LOCK 0x0004	Archive is locked
PK_ARC_SOLID 0x0008	Solid archive
PK_ARC_AUTHENCITY_INFO 0x0020	Contains authenticity information
PK_ARC_RECOVERY_RECORD 0x0040	Contains recovery information
PK_ARC_HEADERS_ENCRYPTED 0x0080	File list is encrypted
PK_ARC_FIRST_VOL 0x0100	First volume

ExFlags

Type: unsigned int

Bit flags field with following meanings:

Code

Comments

PK_ARCEX_LOCK_ASK_PASS

0x0001

Prevents plugin from requesting password from the user.

May be used for instance to search in archives, skipping encrypted.

Session

Type: LONG_PTR

Input parameter. The parameter is passed to plugin in ArcGetPasswordProcW and ArcProcessDataProcW. The parameter may be used inside the plugin as the plugin identifier.

Required to correctly process multiple archives simultaneously.

ProcessDataW

Type: ArcProcessDataProcW

Pointer to a progress and feedback function. Plugin must remember the function for later use.

Optional. May be NULL.

Reserved

Type: LONG_PTR[8]

Reserved for future use, must be NULL.