FileOpen2: Difference between revisions
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== Description == | == Description == | ||
Open files with control over <b><i>access</i></b>, <b><i>share</i></b> and <b><i>create</i></b> modes with | Open files with control over <b><i>access</i></b>, <b><i>share</i></b> and <b><i>create</i></b> modes with intuitive parameters. | ||
== Example == | == Example == | ||
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== Function == | == Function == | ||
<highlight-nsis>;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | <highlight-nsis>;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | ||
;; Easily open files with more options than FileOpen | ;; Easily open files with more options than FileOpen. Use lowercase modes | ||
;; P1 : | ;; P1 :out: Handle | ||
;; P2 : | ;; P2 :in: File name | ||
;; P3 : | ;; P3 :in: Access mode (default=r) | ||
;; | ;; 'r' : Read | ||
;; | ;; 'w' : Read+Write | ||
;; P4 : | ;; P4 :in: Share mode (default=w) | ||
;; | ;; 'l' : None (full lock) | ||
;; | ;; 'r' : Read (no delete, no write) | ||
;; | ;; 'w' : Read+Write (no delete) | ||
;; | ;; 'a' : Read+Write+Delete (full share) | ||
;; P5 : | ;; P5 :in: Create mode (default=o) | ||
;; | ;; 'o' : Open existing only | ||
;; | ;; 'c' : Create if not exist | ||
;; | ;; 'v' : Create and Overwrite | ||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | ||
!define FileOpen2 "!insertmacro _FileOpen2" | !define FileOpen2 "!insertmacro _FileOpen2" | ||
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Exch $3 ;; Create | Exch $3 ;; Create | ||
StrCmpS "w" $1 0 +3 | |||
StrCpy $1 0xC0000000 ;; GENERIC_READ | GENERIC_WRITE | StrCpy $1 0xC0000000 ;; GENERIC_READ | GENERIC_WRITE | ||
Goto +2 | Goto +2 | ||
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StrCpy $1 0x80000000 ;; GENERIC_READ | StrCpy $1 0x80000000 ;; GENERIC_READ | ||
StrCmpS "l" $2 0 +3 | |||
StrCpy $2 0 ;; FILE_SHARE_NONE | StrCpy $2 0 ;; FILE_SHARE_NONE | ||
Goto +8 | Goto +8 | ||
StrCmpS "r" $2 0 +3 | |||
StrCpy $2 1 ;; FILE_SHARE_READ | StrCpy $2 1 ;; FILE_SHARE_READ | ||
Goto +5 | Goto +5 | ||
StrCmpS "a" $2 0 +3 | |||
StrCpy $2 7 ;; FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE | |||
;- else: "w", "", or anything else | |||
StrCpy $2 3 ;; FILE_SHARE_READ | FILE_SHARE_WRITE | StrCpy $2 3 ;; FILE_SHARE_READ | FILE_SHARE_WRITE | ||
Goto +2 | Goto +2 | ||
StrCmpS "v" $3 0 +3 | |||
StrCpy $3 2 ;; CREATE_ALWAYS | StrCpy $3 2 ;; CREATE_ALWAYS | ||
Goto +5 | Goto +5 | ||
StrCmpS "c" $3 0 +3 | |||
StrCpy $3 4 ;; OPEN_ALWAYS | StrCpy $3 4 ;; OPEN_ALWAYS | ||
Goto +2 | Goto +2 | ||
Latest revision as of 14:56, 3 December 2011
| Author: Lloigor (talk, contrib) |
Description
Open files with control over access, share and create modes with intuitive parameters.
Example
;; Open file with RW access, ReadOnly sharing, and if it does not exists, Creates it. $1 gets the file handle. ${FileOpen2} $1 "$SomeFile" "w" "r" "c"
Function
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;; Easily open files with more options than FileOpen. Use lowercase modes ;; P1 :out: Handle ;; P2 :in: File name ;; P3 :in: Access mode (default=r) ;; 'r' : Read ;; 'w' : Read+Write ;; P4 :in: Share mode (default=w) ;; 'l' : None (full lock) ;; 'r' : Read (no delete, no write) ;; 'w' : Read+Write (no delete) ;; 'a' : Read+Write+Delete (full share) ;; P5 :in: Create mode (default=o) ;; 'o' : Open existing only ;; 'c' : Create if not exist ;; 'v' : Create and Overwrite ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; !define FileOpen2 "!insertmacro _FileOpen2" !macro _FileOpen2 _Handle_ _File_ _Access_ _Share_ _Create_ Push "${_Create_}" Push "${_Share_}" Push "${_Access_}" Push "${_File_}" Call FileOpen2 Pop ${_Handle_} !macroend Function FileOpen2 ;; File, Access, Share, Create Exch $0 ;; File Exch Exch $1 ;; Access Exch 2 Exch $2 ;; Share / Return value Exch 3 Exch $3 ;; Create StrCmpS "w" $1 0 +3 StrCpy $1 0xC0000000 ;; GENERIC_READ | GENERIC_WRITE Goto +2 ;- else: "r", "", or anything else StrCpy $1 0x80000000 ;; GENERIC_READ StrCmpS "l" $2 0 +3 StrCpy $2 0 ;; FILE_SHARE_NONE Goto +8 StrCmpS "r" $2 0 +3 StrCpy $2 1 ;; FILE_SHARE_READ Goto +5 StrCmpS "a" $2 0 +3 StrCpy $2 7 ;; FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE ;- else: "w", "", or anything else StrCpy $2 3 ;; FILE_SHARE_READ | FILE_SHARE_WRITE Goto +2 StrCmpS "v" $3 0 +3 StrCpy $3 2 ;; CREATE_ALWAYS Goto +5 StrCmpS "c" $3 0 +3 StrCpy $3 4 ;; OPEN_ALWAYS Goto +2 ;- else: "o", "", or anything else StrCpy $3 3 ;; OPEN_EXISTING System::Call 'Kernel32::CreateFile(t, i, i, i, i, i, i) i (r0, r1, r2, 0, r3, 0x80, 0) .r2' ;; Open/Create file Pop $3 Pop $0 Pop $1 Exch $2 ;; Return Handle FunctionEnd
