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Citire/Scriere din fisier

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5 replies to this topic

#1
Rengel

Rengel

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As vrea sa fac unui program un fel de fisier 'config' unde sa-i retin setarile atunci cand un utilizator vrea sa le schimbe.
Imi este foarte usor sa fac citiri scrieri in C++ (http://www.cplusplus...y/cstdio/scanf/) insa aici am mari probleme cu acest lucru.
Cum as putea citi un singur integer ca in C? Cum as putea citi un cuvant? Aceiasi problema si la scriere.

Mersi anticipat. :)

Edited by Rengel, 05 July 2011 - 21:03.


#2
Paullik

Paullik

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http://www.cplusplus...y/cstdio/fgets/
http://www.cplusplus...y/cstdio/fread/
http://www.cplusplus.../cstdio/fscanf/

Ca sa citesti un int ai acolo exemplu, ca sa citesti un cuvant dintr-o propozitie:
1. Citesti un caracter si-l adaugi intr-un buffer(o variabila de tip sir de caractere char *cuv)
2. Te intrebi: este diferit acest caracter de spatiu?(nu am ajuns la sfarsitul cuvantului)
3. Revii la pasul 1. pana cand dai de spatiu
4. Daca dai de spatiu ti s-a terminat cuvantul, deci in buffer pui sfarsitul de string

Edited by Paullik, 05 July 2011 - 21:07.


#3
neagu_laurentiu

neagu_laurentiu

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Cauta in documentatie despre FileSystemObject (sper ca te referi la VB 6 si nu .NET)

#4
Rengel

Rengel

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PS: Vreau sa fac asta in Visual Basic  :rolleyes:.

View Postneagu_laurentiu, on 5th July 2011, 22:11, said:

Cauta in documentatie despre FileSystemObject (sper ca te referi la VB 6 si nu .NET)

Ce anume sa fac? :)

Edited by Rengel, 05 July 2011 - 21:15.


#5
neagu_laurentiu

neagu_laurentiu

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Acel obiect cu proprietatile si metodele sale e folosit in lucrul cu fisierele.

#6
gabirds

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eu iti recomand acest modul, usor de folosit

Public S() As String
Public ItemInSect As Integer

Private Declare Function GetPrivateProfileString Lib "kernel32" _
Alias "GetPrivateProfileStringA" (ByVal lpApplicationName As String, _
ByVal lpKeyName As String, ByVal lpDefault As String, _
ByVal lpReturnedString As String, ByVal nSize As Long, _
ByVal lpFileName As String) As Long

Private Declare Function WritePrivateProfileString Lib "kernel32" Alias _
"WritePrivateProfileStringA" (ByVal lpApplicationName As String, _
ByVal lpKeyName As Any, ByVal lpString As Any, ByVal lpFileName As String) _
As Long

Public Property Get ReadINI(strSection As String, strkey As String, _
strfullpath As String) As String
   Dim strbuffer As String
   Let strbuffer$ = String$(750, Chr$(0&))
   Let ReadINI$ = Left$(strbuffer$, GetPrivateProfileString(strSection$, _
   ByVal LCase$(strkey$), "", strbuffer, Len(strbuffer), strfullpath$))
End Property

Public Sub WriteINI(strSection As String, strkey As String, strkeyvalue _
As String, strfullpath As String)
	Call WritePrivateProfileString(strSection$, strkey$, strkeyvalue$, _
	strfullpath$)
End Sub


Public Function DeleteKey(strSection As String, strkey As String, _
strfullpath As String) As Boolean
	Call WritePrivateProfileString(strSection, strkey$, vbNullString, _
	strfullpath$)
End Function

Public Function GetAllKeys(ByVal Section As String, strfullpath As String) _
As Collection
  Dim Value As String, RetVal As String, X As Integer
  Dim i As Integer
  RetVal = String$(25500, 0)
  X = GetPrivateProfileString(Section, vbNullString, "", RetVal, _
  Len(RetVal), strfullpath)
  Value = Trim(Left(RetVal, X))
  S = Split(Value, Chr(0))
  Set GetAllKeys = New Collection
  With GetAllKeys
	For i = LBound(S) To UBound(S)
	  If S(i) <> "" Then .Add S(i)
	Next
  End With
  ItemInSect = UBound(S)
End Function

'Citeste
'citit = ReadWrite.ReadINI(sectiune, item, App.Path & fisierini)
'Scrie
'ReadWrite.WriteINI sectiune, item, item de scris, App.Path & fisierini
'Sterge
'ReadWrite.DeleteKey sectiune, item, App.Path & fisierini
'Numara itemii
  'returneaza nr de itemi dintr-o sectiune
	'GetAllKeys sectiune, App.Path & fisierini
	'itemi = ItemInSect
 

structura fisierului .ini, sau .config, sau orice extensie doresti:

[Sectiune 1]
Item1=1
Item2=abc

[Sectiune 2]
Item1=21
Item2=abcd

[Sectiune 3]
Item1=31
Item2=cba

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