Platforms to show: All Mac Windows Linux Cross-Platform
/DynaPDF/text editing/delete text
Required plugins for this example: MBS DynaPDF Plugin
You find this example project in your Plugins Download as a Xojo project file within the examples folder: /DynaPDF/text editing/delete text
This example is the version from Thu, 6th Apr 2016.
Project "delete text.xojo_binary_project"
FileTypes
Filetype text
Filetype icc
End FileTypes
MenuBar MenuBar1
MenuItem UntitledMenu1 = ""
MenuItem FileMenu = "&File"
MenuItem FileQuit = "Quit"
MenuItem EditMenu = "&Edit"
MenuItem EditUndo = "&Undo"
MenuItem UntitledMenu0 = "-"
MenuItem EditCut = "Cu&t"
MenuItem EditCopy = "&Copy"
MenuItem EditPaste = "&Paste"
MenuItem EditClear = "Clear"
End MenuBar
Class App Inherits Application
EventHandler Sub Open()
dim pdf as new MyDynapdfMBS
dim outfile as FolderItem=SpecialFolder.Desktop.Child("delete text.pdf")
pdf.SetLicenseKey "Pro" // For this example you can use a Pro or Enterprise License
call pdf.CreateNewPDF outfile
dim filepath as FolderItem=FindFile("taxform.pdf")
// We import the contents only without conversion of pages to templates
call pdf.SetImportFlags(BitwiseOr(pdf.kifContentOnly, pdf.kifImportAsPage))
if pdf.OpenImportFile(filePath, pdf.kptOpen, "")<>0 then
MsgBox "Input file """+ filePath.name+""" not found!"
quit
end if
call pdf.ImportPDFFile(1, 1.0, 1.0)
call pdf.CloseImportFile
dim result as Boolean
dim pageCount as integer = pdf.GetPageCount
for i as integer = 1 to pageCount
// DynaPDF error messages are already handled in the error callback function!
call pdf.EditPage(i)
dim s as DynaPDFStackMBS
call pdf.InitStack(s)
dim found as Boolean = false
do
result=pdf.GetPageText(s)
if result then
if pdf.ReplacePageText("",s) then
found = true
else
MsgBox " ReplacePageText failed"
end if
end if
loop until not result
if found then
call pdf.FlushPageContent(s)
end if
call pdf.EndPage
next
call pdf.CloseFile
outFile.Launch
quit
End EventHandler
Function FindFile(name as string) As FolderItem
// Look for file in parent folders from executable on
dim parent as FolderItem = app.ExecutableFile.Parent
while parent<>Nil
dim file as FolderItem = parent.Child(name)
if file<>Nil and file.Exists then
Return file
end if
parent = parent.Parent
wend
End Function
End Class
Class MyDynaPDFMBS Inherits DynaPDFMBS
EventHandler Function Error(ErrorCode as integer, ErrorMessage as string, ErrorType as integer) As integer
// output all messages on the console:
System.DebugLog str(ErrorCode)+": "+ErrorMessage
// and display dialog:
Dim d as New MessageDialog //declare the MessageDialog object
Dim b as MessageDialogButton //for handling the result
d.icon=MessageDialog.GraphicCaution //display warning icon
d.ActionButton.Caption="Continue"
d.CancelButton.Visible=True //show the Cancel button
// a warning or an error?
if BitAnd(ErrorType, me.kE_WARNING) = me.kE_WARNING then
// if user decided to ignore, we'll ignore
if IgnoreWarnings then Return 0
d.Message="A warning occurred while processing your PDF code."
// we add a third button to display all warnings
d.AlternateActionButton.Caption = "Ignore warnings"
d.AlternateActionButton.Visible = true
else
d.Message="An error occurred while processing your PDF code."
end if
d.Explanation = str(ErrorCode)+": "+ErrorMessage
b=d.ShowModal //display the dialog
Select Case b //determine which button was pressed.
Case d.ActionButton
Return 0 // ignore
Case d.AlternateActionButton
IgnoreWarnings = true
Return 0 // ignore
Case d.CancelButton
Return -1 // stop
End select
End EventHandler
Property IgnoreWarnings As Boolean
End Class
End Project
See also:
The items on this page are in the following plugins: MBS DynaPDF Plugin.