I have one binary file and want to read value from a specific location of that file.
and once I have the value, I want to write that value in the another file on same location
For instance, I have two binary files A1 and B1
Now I want to read a value from file A1 which stores in binary location 0000 003E - 0000 0041.
Once I have the value, will have to write value on the same location of file B1
It's VB6 not VBA and I don't understand how to read and write bytes from specific byte location in VB6
Will appreciate if I get the proper solution in VB6 code.
Add this mdStreamSupport.bas module to a new Std-EXE project and change source and destination file names as used with CopyChunk function in the following code:
Option Explicit
Private Sub Form_Load()
Dim sError As String
If Not CopyChunk("D:\TEMP\aaa.src", "D:\TEMP\aaa.dest", _
Position:=&H3E, _
Size:=&H41 - &H3E + 1, _
Error:=sError) Then
MsgBox "Error copying chunk" & vbCrLf & vbCrLf & sError, vbExclamation
End If
End Sub
Private Function CopyChunk( _
SourceFile As String, _
DestFile As String, _
ByVal Position As Currency, _
ByVal Size As Long, _
Optional Error As String) As Boolean
Dim pSrc As stdole.IUnknown
Dim pDest As stdole.IUnknown
Dim baData() As Byte
On Error GoTo EH
Set pSrc = StreamOpenFile(SourceFile)
If pSrc Is Nothing Then
Error = "Cannot open source file (" & SourceFile & ")"
GoTo QH
End If
Set pDest = StreamOpenFile(DestFile, AlwaysCreate:=False)
If pDest Is Nothing Then
Error = "Cannot open destination file (" & DestFile & ")"
GoTo QH
End If
If StreamSeekAbsolute(pSrc, Position) <> Position Then
Error = "Cannot position source file to " & Position
GoTo QH
End If
If StreamSeekAbsolute(pDest, Position) <> Position Then
Error = "Cannot position destination file to " & Position
GoTo QH
End If
baData = StreamReadBytes(pSrc, Size)
If UBound(baData) + 1 <> Size Then
Error = "Cannot read chunk from source file (" & Size & ")"
GoTo QH
End If
If StreamWriteBytes(pDest, baData) <> Size Then
Error = "Cannot write chunk to destination file (" & Size & ")"
GoTo QH
End If
'--- success
CopyChunk = True
QH:
Exit Function
EH:
Error = Err.Description
End Function
Related
I've got a spreadsheet that uses some basic code to get the user to select a file (txt file). It works flawlessly on Windows but fails on OSX obviously due to the difference in FileDialog calls. I've done some research though and can't seem to find much information about opening a File Dialog on both OSX and Windows for Excel/VB.
The current code is,
FileToOpen = Application.GetOpenFilename _
(Title:="Please choose a file to import", _
FileFilter:="Excel Files *.xls (*.xls),")
''
If FileToOpen = False Then
MsgBox "No file specified.", vbExclamation, "Duh!!!"
Exit Sub
Else
Workbooks.Open Filename:=FileToOpen
End If
Answer can be found here - http://msdn.microsoft.com/en-us/library/office/hh710200%28v=office.14%29.aspx
Code is as follows,
OSX
Sub Select_File_Or_Files_Mac()
Dim MyPath As String
Dim MyScript As String
Dim MyFiles As String
Dim MySplit As Variant
Dim N As Long
Dim Fname As String
Dim mybook As Workbook
On Error Resume Next
MyPath = MacScript("return (path to documents folder) as String")
'Or use MyPath = "Macintosh HD:Users:Ron:Desktop:TestFolder:"
' In the following statement, change true to false in the line "multiple
' selections allowed true" if you do not want to be able to select more
' than one file. Additionally, if you want to filter for multiple files, change
' {""com.microsoft.Excel.xls""} to
' {""com.microsoft.excel.xls"",""public.comma-separated-values-text""}
' if you want to filter on xls and csv files, for example.
MyScript = _
"set applescript's text item delimiters to "","" " & vbNewLine & _
"set theFiles to (choose file of type " & _
" {""com.microsoft.Excel.xls""} " & _
"with prompt ""Please select a file or files"" default location alias """ & _
MyPath & """ multiple selections allowed true) as string" & vbNewLine & _
"set applescript's text item delimiters to """" " & vbNewLine & _
"return theFiles"
MyFiles = MacScript(MyScript)
On Error GoTo 0
If MyFiles <> "" Then
With Application
.ScreenUpdating = False
.EnableEvents = False
End With
MySplit = Split(MyFiles, ",")
For N = LBound(MySplit) To UBound(MySplit)
' Get the file name only and test to see if it is open.
Fname = Right(MySplit(N), Len(MySplit(N)) - InStrRev(MySplit(N), Application.PathSeparator, , 1))
If bIsBookOpen(Fname) = False Then
Set mybook = Nothing
On Error Resume Next
Set mybook = Workbooks.Open(MySplit(N))
On Error GoTo 0
If Not mybook Is Nothing Then
MsgBox "You open this file : " & MySplit(N) & vbNewLine & _
"And after you press OK it will be closed" & vbNewLine & _
"without saving, replace this line with your own code."
mybook.Close SaveChanges:=False
End If
Else
MsgBox "We skipped this file : " & MySplit(N) & " because it Is already open."
End If
Next N
With Application
.ScreenUpdating = True
.EnableEvents = True
End With
End If
End Sub
Function bIsBookOpen(ByRef szBookName As String) As Boolean
' Contributed by Rob Bovey
On Error Resume Next
bIsBookOpen = Not (Application.Workbooks(szBookName) Is Nothing)
End Function
Windows
Sub Select_File_Or_Files_Windows()
Dim SaveDriveDir As String
Dim MyPath As String
Dim Fname As Variant
Dim N As Long
Dim FnameInLoop As String
Dim mybook As Workbook
' Save the current directory.
SaveDriveDir = CurDir
' Set the path to the folder that you want to open.
MyPath = Application.DefaultFilePath
' You can also use a fixed path.
'MyPath = "C:\Users\Ron de Bruin\Test"
' Change drive/directory to MyPath.
ChDrive MyPath
ChDir MyPath
' Open GetOpenFilename with the file filters.
Fname = Application.GetOpenFilename( _
FileFilter:="Excel 97-2003 Files (*.xls), *.xls", _
Title:="Select a file or files", _
MultiSelect:=True)
' Perform some action with the files you selected.
If IsArray(Fname) Then
With Application
.ScreenUpdating = False
.EnableEvents = False
End With
For N = LBound(Fname) To UBound(Fname)
' Get only the file name and test to see if it is open.
FnameInLoop = Right(Fname(N), Len(Fname(N)) - InStrRev(Fname(N), Application.PathSeparator, , 1))
If bIsBookOpen(FnameInLoop) = False Then
Set mybook = Nothing
On Error Resume Next
Set mybook = Workbooks.Open(Fname(N))
On Error GoTo 0
If Not mybook Is Nothing Then
MsgBox "You opened this file : " & Fname(N) & vbNewLine & _
"And after you press OK, it will be closed" & vbNewLine & _
"without saving. You can replace this line with your own code."
mybook.Close SaveChanges:=False
End If
Else
MsgBox "We skipped this file : " & Fname(N) & " because it is already open."
End If
Next N
With Application
.ScreenUpdating = True
.EnableEvents = True
End With
End If
' Change drive/directory back to SaveDriveDir.
ChDrive SaveDriveDir
ChDir SaveDriveDir
End Sub
Function bIsBookOpen(ByRef szBookName As String) As Boolean
' Contributed by Rob Bovey
On Error Resume Next
bIsBookOpen = Not (Application.Workbooks(szBookName) Is Nothing)
End Function
Picker Function
Sub WINorMAC()
' Test for the operating system.
If Not Application.OperatingSystem Like "*Mac*" Then
' Is Windows.
Call Select_File_Or_Files_Windows
Else
' Is a Mac and will test if running Excel 2011 or higher.
If Val(Application.Version) > 14 Then
Call Select_File_Or_Files_Mac
End If
End If
End Sub
Sub WINorMAC_2()
' Test the conditional compiler constants.
#If Win32 Or Win64 Then
' Is Windows.
Call Select_File_Or_Files_Windows
#Else
' Is a Mac and will test if running Excel 2011 or higher.
If Val(Application.Version) > 14 Then
Call Select_File_Or_Files_Mac
End If
#End If
End Sub
I Have Displayed text file in richtextbox.
and onclick on command button value of textbox1 is being replaced in text file.
but How to keep both data . previous one and another which is entered new in textbox
I HAVE USE THIS CODE BUT IT REPLACES ALL THE TEXT :
Open "D:\chat.txt" For Output As #1
a = Text1.Text
Print #1, a
Close #1
Change For Output to For Append, and it will add the new text to the end of the file instead of overwriting it.
Additional note
Since I'm not able to add a comment to Boann's answer (the one marked as accepted).
The Append access mode used with the Print statement automatically appends a new line at the end of the file. This is fine in almost all cases, but for anyone reading this that wants to avoid this behavior, just add a semicolon at the end of the Print statement (this is the only instance I've seen the semicolon used in VB6).
a = Text1.Text
intHandle = FreeFile
Open "D:\chat.txt" For Append As intHandle
Print #intHandle, a; ' Notice the semicolon; prevents a new line after this output.
Close #intHandle
I'm sure the code you posted originally was just for the sake of getting an answer and is not what your code actually looks like. Otherwise:
To you or any future readers, here's a simple AppendToFile() function which will make repeated calls easier, ensures the file gets closed even if a run-time error is encountered, and shows useful debug information upon failure (i.e. with an invalid filename):
How your original code would be written when putting my below function in your code:
AppendToFile "D:\chat.txt", Text1.Text
And here's the function:
Private Function AppendToFile( _
ByRef FilePath As String, _
ByRef Text As String, _
Optional ByVal AppendNewLine As Boolean = True _
) As Boolean
On Error GoTo ErrorHandler
Dim intHandle As Integer
' Get an available file handle to use.
intHandle = FreeFile
Open FilePath For Append As intHandle
' Only use semicolon at end if we do NOT want to append a new line.
If AppendNewLine Then
Print intHandle, Text
Else
Print intHandle, Text;
End If
Close intHandle
intHandle = 0
AppendToFile = True
Exit Function
ErrorHandler:
' Ensure that file is indeed closed.
If intHandle <> 0 Then
Close intHandle
End If
' Show error in debug window (CTRL+G)
Debug.Print _
"Error (#" & CStr(Err.Number) & ") in " & _
"TextToFile( _" & vbCrLf & _
"`" & FilePath & "`, _" & vbCrLf & _
"`" & Text & "`, _" & vbCrLf & _
IIf(AppendNewLine, "`True`", "`False`") & vbCrLf & _
"): " & Err.Description & IIf("." = Right$(Err.Description, 1), "", ".") & vbCrLf
Exit Function
End Function
I have inherited a VB6 program that uses Crystal Reports 8.5 to run reports & then export the output to a PDF. It then uses the Adobe Acrobat 5.0 Type Library to merge the resulting PDFs into a single PDF document. Our problem is that we need to upgrade the Acrobat 5.0 Type Library but it appears that the most current version of Acrobat doesn’t provide a type library that will work with VB6. Does anyone know the most recent version of Acrobat that is supported within VB6? Also, does anyone have any suggestions of how this can be upgraded without upgrading the entire application to .Net? Thanks in advance for any help that can be provided.
I'd shell out to pdftk. Example from the man page:
Merge Two or More PDFs into a New Document
pdftk 1.pdf 2.pdf 3.pdf cat output 123.pdf
Note that if your app is distributed and non-GPL you'll need a commercial license for it, but it's only $24 at the moment.
I had this same requirement 15 years ago and created a mod in vb6 to do just that:
modMergePDF
Public Function MergePDFFiles
I recently updated the code to handle Acrobat 10.0 Type Library, so you would need to install the latest as of 8/1/2020, Acrobat DC Pro, to...
Use the below code
Use the compiled MergePDF.exe
Also, the mod adds bookmarks using the file names of the many PDF, with scrub code to
get rid of some ugly file names (you may have to expound upon that if you need to
scrub the file names to bookmark names), into the single pdf file.
Also included a function to generate batch file code:
Public Function BuildBatchFileCode
to call the MergePDF.exe passing in a command
line which consists of the Many pdf directory and the single pdf merged file directory
and file name. You can also pass in a flag to sort CaseSensitive (Any Capitalized
file names will sort above lowercase) and you can pass in another flag to maintain the .pdf extension in the bookmark name.
Find the MergePDF.exe on git up with all supporting code here:
https://github.com/Brad-Skidmore/MergePDF
Note: the error handling refers to goUtil.utErrorLog you can also find that on GitHub or you can replace it with your own error handling.
Here's the Mod code: modMergePDF
' http://www.xlsure.com 2020.07.30
' *********************************************************************
' You are free to use this code within your own applications, but you
' are expressly forbidden from selling or otherwise distributing this
' source code without prior written consent.
' Merge PDF Files - modMergePDF
' *********************************************************************
Option Explicit
'PDF documents must be declared in general declaration space and not local!
Private moMainDoc As Acrobat.AcroPDDoc
Private moTempDoc As Acrobat.AcroPDDoc
Private Property Get msClassName() As String
msClassName = "modMergePDF"
End Property
Public Function MergePDFFiles(psRawPDFFilesDir As String, _
psSinglePDFOutputDir As String, _
psSinglePDFOutputName As String, _
Optional ByVal pbRemovePdfExtFromBookMark As Boolean = True, _
Optional pbCaseSensitiveSort As Boolean = False, _
Optional ByVal pbShowError As Boolean = False) As Boolean
On Error GoTo EH
Dim bFirstDoc As Boolean
Dim sRawPDFFilesDir As String
Dim sSinglePDFOutputDir As String
Dim sSinglePDFOutputName As String
Dim saryFileSort() As String
Dim sBMName As String
'Track pos of things
Dim lBMPageNo As Long
Dim lPos As Long
Dim lFile As Long
Dim lInsertPageAfter As Long
Dim lNumPages As Long
Dim lRet As Long
'Need to use Adobe internal Java Object
'in order to Add Book marks
Dim oJSO As Object 'JavaScript Object
Dim oBookMarkRoot As Object
'File I/O
Dim oFolder As Scripting.Folder
Dim oFile As Scripting.File
Dim oFSO As Scripting.FileSystemObject
sRawPDFFilesDir = psRawPDFFilesDir
'ensure backslash for the 2 b merged PDF files directory
If StrComp(Right(sRawPDFFilesDir, 1), "\", vbBinaryCompare) <> 0 Then
sRawPDFFilesDir = sRawPDFFilesDir & "\"
psRawPDFFilesDir = sRawPDFFilesDir
End If
sSinglePDFOutputDir = psSinglePDFOutputDir
sSinglePDFOutputName = psSinglePDFOutputName
'ensure .pdf for the PDFOutputName (If it's CAP .PDF should be okay)
If StrComp(Right(sSinglePDFOutputName, 4), ".pdf", vbTextCompare) <> 0 Then
sSinglePDFOutputName = sSinglePDFOutputName & ".pdf"
psSinglePDFOutputName = sSinglePDFOutputName
End If
Set oFSO = New Scripting.FileSystemObject
Set oFolder = oFSO.GetFolder(sRawPDFFilesDir)
bFirstDoc = True
If oFolder.Files.Count = 0 Then
Exit Function
End If
'Because the FSO folder files collection does not allow for
'Native sorting, need to plug all the files into an array and sort that motha
ReDim saryFileSort(1 To oFolder.Files.Count)
lFile = 0
For Each oFile In oFolder.Files
lFile = lFile + 1
saryFileSort(lFile) = oFile.Name
Next
'Once they is all in der sor the array
'Sort is Case Sensitive
If pbCaseSensitiveSort Then
goUtil.utBubbleSort saryFileSort
End If
For lFile = 1 To UBound(saryFileSort, 1)
If LCase(Right(saryFileSort(lFile), 4)) = ".pdf" Then
If bFirstDoc Then
bFirstDoc = False
Set moMainDoc = CreateObject("AcroExch.PDDoc") 'New AcroPDDoc
lRet = moMainDoc.Open(sRawPDFFilesDir & saryFileSort(lFile))
Set oJSO = moMainDoc.GetJSObject
Set oBookMarkRoot = oJSO.BookMarkRoot
sBMName = saryFileSort(lFile)
lPos = InStr(1, sBMName, "_{", vbBinaryCompare)
If lPos > 0 Then
sBMName = left(sBMName, lPos - 1) & ".pdf"
End If
If pbRemovePdfExtFromBookMark Then
sBMName = Replace(sBMName, ".pdf", vbNullString, , , vbTextCompare)
End If
lRet = oBookMarkRoot.CreateChild(sBMName, "this.pageNum =0", lFile - 1)
Else
Set moTempDoc = CreateObject("AcroExch.PDDoc") 'New AcroPDDoc
lRet = moTempDoc.Open(sRawPDFFilesDir & saryFileSort(lFile))
'get the Book mark page number before the actual instert of new pages
lBMPageNo = moMainDoc.GetNumPages
lInsertPageAfter = lBMPageNo - 1
lNumPages = moTempDoc.GetNumPages
lRet = moMainDoc.InsertPages(lInsertPageAfter, moTempDoc, 0, lNumPages, 0)
moTempDoc.Close
If lRet = 0 Then
sBMName = saryFileSort(lFile)
lPos = InStr(1, sBMName, "_{", vbBinaryCompare)
If lPos > 0 Then
sBMName = left(sBMName, lPos - 1) & ".pdf"
End If
'Need to copy the errored document over to be included in the enitre document
goUtil.utCopyFile sRawPDFFilesDir & saryFileSort(lFile), sSinglePDFOutputDir & "\" & sBMName
sBMName = "PDF Insert Page Error_" & sBMName
Else
sBMName = saryFileSort(lFile)
lPos = InStr(1, sBMName, "_{", vbBinaryCompare)
If lPos > 0 Then
sBMName = left(sBMName, lPos - 1) & ".pdf"
End If
End If
If pbRemovePdfExtFromBookMark Then
sBMName = Replace(sBMName, ".pdf", vbNullString, , , vbTextCompare)
End If
lRet = oBookMarkRoot.CreateChild(sBMName, "this.pageNum =" & lBMPageNo, lFile - 1)
End If
End If
Next
lRet = moMainDoc.Save(1, sSinglePDFOutputDir & "\" & sSinglePDFOutputName)
moMainDoc.Close
MergePDFFiles = True
CLEAN_UP:
Set oFolder = Nothing
Set oFile = Nothing
Set oFSO = Nothing
Set oBookMarkRoot = Nothing
Set oJSO = Nothing
Set moMainDoc = Nothing
Set moTempDoc = Nothing
Exit Function
EH:
goUtil.utErrorLog Err, App.EXEName, msClassName, "Public Function MergePDFFiles", pbShowError
End Function
Public Function BuildBatchFileCode(psRawPDFFilesDir As String, _
psSinglePDFOutputDir As String, _
psSinglePDFOutputName As String, _
pbRemovePdfExtFromBookMark As Boolean, _
pbCaseSensitiveSort As Boolean) As String
On Error GoTo EH
Dim sRawPDFFilesDir As String: sRawPDFFilesDir = psRawPDFFilesDir
Dim sSinglePDFOutputDir As String: sSinglePDFOutputDir = psSinglePDFOutputDir
Dim sSinglePDFOutputName As String: sSinglePDFOutputName = psSinglePDFOutputName
Dim bRemovePdfExtFromBookMark As Boolean: bRemovePdfExtFromBookMark = pbRemovePdfExtFromBookMark
'ensure backslash for the 2 b merged PDF files directory
If StrComp(Right(sRawPDFFilesDir, 1), "\", vbBinaryCompare) <> 0 Then
sRawPDFFilesDir = sRawPDFFilesDir & "\"
psRawPDFFilesDir = sRawPDFFilesDir
End If
'ensure .pdf for the PDFOutputName (If it's CAP .PDF should be okay)
If StrComp(Right(sSinglePDFOutputName, 3), ".pdf", vbTextCompare) <> 0 Then
sSinglePDFOutputName = sSinglePDFOutputName & ".pdf"
psSinglePDFOutputName = sSinglePDFOutputName
End If
Dim sCommandLine As String
sCommandLine = "RawPDFFilesDir|" & sRawPDFFilesDir _
& "|SinglePDFOutputDir|" & sSinglePDFOutputDir _
& "|SinglePDFOutputName|" & sSinglePDFOutputName _
& "|RemovePdfExtFromBookMark|" & CStr(bRemovePdfExtFromBookMark) _
& "|CaseSensitiveSort|" & CStr(pbCaseSensitiveSort)
BuildBatchFileCode = """" & App.Path & "\" & App.EXEName & ".exe"" """ & sCommandLine
Exit Function
EH:
goUtil.utErrorLog Err, App.EXEName, msClassName, "Public Function BuildBatchFileCode"
End Function
I would like to export a file I have created in UTF-8 CSV using VBA. From searching message boards, I have found the following code that converts a file to UTF-8 (from this thread):
Sub SaveAsUTF8()
Dim fsT, tFileToOpen, tFileToSave As String
tFileToOpen = InputBox("Enter the name and location of the file to convert" & vbCrLf & "With full path and filename ie. C:\MyFolder\ConvertMe.Txt")
tFileToSave = InputBox("Enter the name and location of the file to save" & vbCrLf & "With full path and filename ie. C:\MyFolder\SavedAsUTF8.Txt")
tFileToOpenPath = tFileToOpen
tFileToSavePath = tFileToSave
Set fsT = CreateObject("ADODB.Stream"): 'Create Stream object
fsT.Type = 2: 'Specify stream type – we want To save text/string data.
fsT.Charset = "utf-8": 'Specify charset For the source text data.
fsT.Open: 'Open the stream
fsT.LoadFromFile tFileToOpenPath: 'And write the file to the object stream
fsT.SaveToFile tFileToSavePath, 2: 'Save the data to the named path
End Sub
However, this code only converts a non-UTF-8 file to UTF-8. If I were to save my file in non-UTF-8 and then convert it to UTF-8, it would have already lost all the special characters it contained, thus rendering the process pointless!
What I'm looking to do is save an open file in UTF-8 (CSV). Is there any way of doing this with VBA?
n.b. I have also asked this question on the 'ozgrid' forum. Will close both threads together if I find a solution.
Finally in Office 2016, you can simply savs as CSV in UTF8.
Sub SaveWorkSheetAsCSV()
Dim wbNew As Excel.Workbook
Dim wsSource As Excel.Worksheet, wsTemp As Excel.Worksheet
Dim name As String
Set wsSource = ThisWorkbook.Worksheets(1)
name = "test"
Application.DisplayAlerts = False 'will overwrite existing files without asking
Set wsTemp = ThisWorkbook.Worksheets(1)
Set wbNew = ActiveWorkbook
Set wsTemp = wbNew.Worksheets(1)
wbNew.SaveAs name & ".csv", xlCSVUTF8 'new way
wbNew.Close
Application.DisplayAlerts = True
End Sub
This will save the worksheet 1 into csv named test.
Update of this code. I used this one to change all .csv files in a specified folder (labeled "Bron") and save them as csv utf-8 in another folder (labeled "doel")
Sub SaveAsUTF8()
Dim fsT As Variant, tFileToOpen As String, tFileToSave As String
Dim Message As String
Dim wb As Workbook
Dim fileName As String
Set wb = ActiveWorkbook
With Application
.ScreenUpdating = False
.DisplayAlerts = False
End With
Message = "Source folder incorrect"
SourceFolder = wb.Worksheets("Menu").Range("Bron") & "\"
If Dir(SourceFolder, vbDirectory) = "" Or IsEmpty(SourceFolder) Then GoTo errorhandler
Message = "Target folder incorrect"
TargetFolder = wb.Worksheets("Menu").Range("Doel") & "\"
If Dir(TargetFolder, vbDirectory) = "" Or IsEmpty(TargetFolder) Then GoTo errorhandler
fileName = Dir(SourceFolder & "\*.csv", vbNormal)
Message = "No files available."
If Len(fileName) = 0 Then GoTo errorhandler
Do Until fileName = ""
tFileToOpen = SourceFolder & fileName
tFileToSave = TargetFolder & fileName
tFileToOpenPath = tFileToOpen
tFileToSavePath = tFileToSave
Set fsT = CreateObject("ADODB.Stream"): 'Create Stream object
fsT.Type = 2: 'Specify stream type – we want To save text/string data.
fsT.Charset = "utf-8": 'Specify charset For the source text data.
fsT.Open: 'Open the stream
fsT.LoadFromFile tFileToOpenPath: 'And write the file to the object stream
fsT.SaveToFile tFileToSavePath, 2: 'Save the data to the named path
fileName = Dir()
Loop
Message = "Okay to remove all old files?"
If QuestionMessage(Message) = False Then
GoTo the_end
Else
On Error Resume Next
Kill SourceFolder & "*.csv"
On Error GoTo errorhandler
End If
the_end:
With Application
.ScreenUpdating = True
.DisplayAlerts = True
End With
Exit Sub
errorhandler:
With Application
.ScreenUpdating = True
.DisplayAlerts = True
End With
CriticalMessage (Message)
Exit Sub
End Sub
'----------
Function CriticalMessage(Message As String)
MsgBox Message
End Function
'----------
Function QuestionMessage(Message As String)
If MsgBox(Message, vbQuestion + vbYesNo) = vbNo Then
QuestionMessage = False
Else
QuestionMessage = True
End If
End Function
Here's my solution based on Excel VBA - export to UTF-8, which user3357963 linked to earlier. It includes macros for exporting a range and a selection.
Option Explicit
Const strDelimiter = """"
Const strDelimiterEscaped = strDelimiter & strDelimiter
Const strSeparator = ","
Const strRowEnd = vbCrLf
Const strCharset = "utf-8"
Function CsvFormatString(strRaw As String) As String
Dim boolNeedsDelimiting As Boolean
boolNeedsDelimiting = InStr(1, strRaw, strDelimiter) > 0 _
Or InStr(1, strRaw, Chr(10)) > 0 _
Or InStr(1, strRaw, strSeparator) > 0
CsvFormatString = strRaw
If boolNeedsDelimiting Then
CsvFormatString = strDelimiter & _
Replace(strRaw, strDelimiter, strDelimiterEscaped) & _
strDelimiter
End If
End Function
Function CsvFormatRow(rngRow As Range) As String
Dim arrCsvRow() As String
ReDim arrCsvRow(rngRow.Cells.Count - 1)
Dim rngCell As Range
Dim lngIndex As Long
lngIndex = 0
For Each rngCell In rngRow.Cells
arrCsvRow(lngIndex) = CsvFormatString(rngCell.Text)
lngIndex = lngIndex + 1
Next rngCell
CsvFormatRow = Join(arrCsvRow, ",") & strRowEnd
End Function
Sub CsvExportRange( _
rngRange As Range, _
Optional strFileName As Variant _
)
Dim rngRow As Range
Dim objStream As Object
If IsMissing(strFileName) Or IsEmpty(strFileName) Then
strFileName = Application.GetSaveAsFilename( _
InitialFileName:=ActiveWorkbook.Path & "\" & rngRange.Worksheet.Name & ".csv", _
FileFilter:="CSV (*.csv), *.csv", _
Title:="Export CSV")
End If
Set objStream = CreateObject("ADODB.Stream")
objStream.Type = 2
objStream.Charset = strCharset
objStream.Open
For Each rngRow In rngRange.Rows
objStream.WriteText CsvFormatRow(rngRow)
Next rngRow
objStream.SaveToFile strFileName, 2
objStream.Close
End Sub
Sub CsvExportSelection()
CsvExportRange ActiveWindow.Selection
End Sub
Sub CsvExportSheet(varSheetIndex As Variant)
Dim wksSheet As Worksheet
Set wksSheet = Sheets(varSheetIndex)
CsvExportRange wksSheet.UsedRange
End Sub
As you can see down there i made a programme that scans a document and optionally get the page info and material & size infos and date info.
When i use OCR scanning like this:
Dim Mdoc As MODI.Document
Dim Mlay As MODI.Layout
Dim fso As Scripting.FileSystemObject
Dim logfile As Object
Public Function ScanMan(ByVal Name As String, ByVal Path As String) As String
Set Mdoc = New MODI.Document
'Set Mdoc = CreateObject("MODI.Document")
Set fso = New Scripting.FileSystemObject
DoEvents
''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
''''''''''''''''''' Create OCRLog File '''''''''''''''''''
OCRPath = App.Path & "\OCR Results Log\"
OCRName = Str(DateTime.Date) & " OCRresults"
If fso.FolderExists(OCRPath) = False Then
fso.CreateFolder (OCRPath)
End If
If fso.FileExists(OCRPath & OCRName & ".txt") = False Then
fso.CreateTextFile OCRPath & OCRName & ".txt"
End If
Set logfile = fso.OpenTextFile(OCRPath & OCRName & ".txt", ForAppending)
''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
On Error GoTo OCRErr
DoEvents
Mdoc.Create Path & "\" & Name
Mdoc.Images(0).OCR miLANG_ENGLISH, True, True
logfile.Write Mdoc.Images(0).Layout.Text
ScanMan = Mlay.Text
Mdoc.Close False
Set Mlay = Nothing
Set Mdoc = Nothing
Exit Function
OCRErr:
logfile.WriteLine "OCR given (" & Err.Number & ") numbered (" & Err.Description & ") error."
logfile.Close
End Function
This gets the whole page but i just want those 3 spesific area to be scanned so how can i achive that? Is there any function for that? Which scans only X,Y coordinates?
A vb6 snippet
Sub TestTextSelection()
Dim miTextSel As MODI.IMiSelectableItem
Dim miSelectRects As MODI.miSelectRects
Dim miSelectRect As MODI.miSelectRect
Dim strTextSelInfo As String
Set miTextSel = MiDocView1.TextSelection
Set miSelectRects = miTextSel.GetSelectRects
strTextSelInfo = _
"Bounding rectangle page & coordinates: " & vbCrLf
For Each miSelectRect In miSelectRects
With miSelectRect
strTextSelInfo = strTextSelInfo & _
.PageNumber & ", " & .Top & ", " & _
.Left & ", " & .Bottom & ", " & _
.Right & vbCrLf
End With
Next
MsgBox strTextSelInfo, vbInformation + vbOKOnly, _
"Text Selection Info"
Set miSelectRect = Nothing
Set miSelectRects = Nothing
Set miTextSel = Nothing
End Sub
Though the question is tagged as vb6 but answer is from vb.Net 2010. I hope vb.NET could easily be converted to vb6, only matters is just a few more time.
The basic idea is to create an xml file from image and then run a query over the xml file to fetch text of the required block surrounded by (x1,y1) and (x2,y2).
The core class
Imports System
Imports System.IO
Imports System.Xml
Imports System.Linq
Imports MODI
Public Class clsCore
Public Sub New()
'blah blah blah
End Sub
Public Function GetTextFromCoordinates(ByVal iPath$, ByVal x1&, ByVal y1&, ByVal x2&, ByVal y2&) As String
Try
Dim xDoc As XElement = Me.ConvertImage2XML(iPath)
If IsNothing(xDoc) = False Then
Dim result As New XElement(<text/>)
Dim query = xDoc...<wd>.Where(Function(c) Val(CStr(c.#left)) >= x1 And Val(CStr(c.#right)) <= x2 And Val(CStr(c.#top)) >= y1 And Val(CStr(c.#bottom)) <= y2)
For Each ele As XElement In query
result.Add(CStr(ele.Value) & " ")
Next ele
Return Trim(result.Value)
Else
Return ""
End If
Catch ex As Exception
Console.WriteLine(ex.ToString)
Return ex.ToString
End Try
End Function
Private Function ConvertImage2XML(ByVal iPath$) As XElement
Try
If File.Exists(iPath) = True Then
Dim miDoc As New MODI.Document
Dim result As New XElement(<image path=<%= iPath %>/>)
miDoc.Create(iPath)
For Each miImg As MODI.Image In miDoc.Images
Dim page As New XElement(<page id=<%= result...<page>.Count + 1 %>/>)
miImg.OCR()
For Each miWord As MODI.Word In miImg.Layout.Words
Dim wd As New XElement(<wd block=<%= miWord.RegionId.ToString %>><%= miWord.Text %></wd>)
For Each miRect As MODI.MiRect In miWord.Rects
wd.Add(New XAttribute("left", miRect.Left))
wd.Add(New XAttribute("top", miRect.Top))
wd.Add(New XAttribute("right", miRect.Right))
wd.Add(New XAttribute("bottom", miRect.Bottom))
Next miRect
page.Add(wd)
Next miWord
result.Add(page)
Next miImg
Return result
Else
Return Nothing
End If
Catch ex As Exception
Console.WriteLine(ex.ToString)
Return Nothing
End Try
End Function
End Class
the main module
Imports System
Imports System.IO
Imports System.Text.RegularExpressions
Module modMain
Sub Main()
Dim iPath$ = "", iPos$ = "150,825,1400,1200"
Console.WriteLine("Enter path to file:")
iPath = Console.ReadLine()
Console.WriteLine("")
Console.WriteLine("Enter co-ordinates(i.e., x1,y1,x2,y2 or 150,825,1400,1200):")
iPos = Console.ReadLine()
Dim tmp As String() = Regex.Split(iPos, "\D+")
Dim outText$ = New clsCore().GetTextFromCoordinates(iPath, tmp(0), tmp(1), tmp(2), tmp(3))
Console.WriteLine("")
Console.WriteLine(String.Format("{0}[({1},{2})-({3},{4})]:{5}{5}{6}", Dir(iPath), tmp(0), tmp(1), tmp(2), tmp(3), vbCrLf, outText))
Console.ReadLine()
End Sub
End Module
UPDATE
The following example reports the page number and the coordinates of the bounding rectangle around the user's image selection in the viewer control. And which can be used later within picturebox.
Sub TestImageSelection()
Dim miImageSel As MODI.IMiSelectableImage
Dim lngPageNo As Long
Dim lngLeft As Long, lngTop As Long
Dim lngRight As Long, lngBottom As Long
Dim strImageSelInfo As String
Set miImageSel = MiDocView1.ImageSelection
miImageSel.GetBoundingRect lngPageNo, _
lngLeft, lngTop, lngRight, lngBottom
strImageSelInfo = _
"Page number: " & lngPageNo & vbCrLf & _
"Bounding rectangle coordinates: " & vbCrLf & _
lngLeft & ", " & lngTop & ", " & _
lngRight & ", " & lngBottom
MsgBox strImageSelInfo, vbInformation + vbOKOnly, _
"Image Selection Info"
Set miImageSel = Nothing
End Sub
Hope this helps.
I used image and pic boxes to crop and resize a picture exactly to HD pixels and size for inclusion in a HD movie. I moved the picture about with slider controls (eg PicSize.Value)
The picture box is set to 1900x1080 pixels off screen with Visible=false.
The image box size has Stretch set to true with size is not critical and shows a smaller version of the final cropped pic.
I save the picture box as a bmp so it nicely integrates with my AVCHD video in the Adobe editor being the same frame size as the video.
This was the main subroutine:
-Private Sub Convert()
'Creates a cropped and/or magnified fixed pixel 1900x1080 picture
Dim file_name As String, LeftPos As Long
Picture2.Picture = LoadPicture("")
DoEvents
' Resize the picture.
LeftPos = 950 + HPos.Value - PicSize.Value / 2 + PicWidth.Value * 20
Picture2.PaintPicture Picture1.Picture, _
LeftPos, VPos.Value, _
PicSize.Value - (PicSize.Value * (PicWidth.Value / 50)), _
PicSize.Value * (Aspect.Value / 100)
Picture2.Picture = Picture2.Image
TopValue.Caption = VPos.Value
HPosValue.Caption = HPos.Value
SizeValue.Caption = PicSize.Value
AspectValue.Caption = Aspect.Value - 75
StretchValue.Caption = PicWidth.Value
Image1.Picture = Picture2.Image 'preview it
End Sub