Title: Automating MS Word using Ole
Question: How do I use MS Word to print some letters from within my Delphi application?
Answer:
I've used a version of the following code to create an object which lets me perform this operation very easily. Below the object definition code I have an example for how I use this object.
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Unit WordCls;
Interface
Uses SysUtils, COMObj, Dialogs;
Type TWordObj = Class(TObject)
Private
WordApp: Variant;
Public
Constructor CreateObject(Visible: Boolean);
Destructor Destroy; Override;
Procedure FileOpen(FileName: String);
Procedure MakeBig;
Procedure MailMergeToDoc;
Procedure FilePrintSetup(NewPrinter: String);
Procedure FilePrint;
Procedure FileClose;
end;
Implementation
CONST
wdDoNotSaveChanges = 0;
wdSendToNewDocument = 0;
wdWindowStateMaximize = 1;
Constructor TWordObj.CreateObject(Visible: Boolean);
begin
Inherited Create;
WordApp := CreateOleObject('Word.Application');
If not VarIsEmpty(WordApp) then
WordApp.Visible := Visible;
end;
Destructor TWordObj.Destroy;
Begin
Try
WordApp.Quit(wdDoNotSaveChanges);
finally
Inherited;
end;
end;
Procedure TWordObj.FileOpen(FileName: String);
Begin
WordApp.Documents.Open(FileName);
end;
Procedure TWordObj.MakeBig;
begin
WordApp.WindowState := wdWindowStateMaximize
END;
Procedure TWordObj.MailMergeToDoc;
Begin
WordApp.ActiveDocument.MailMerge.Destination := wdSendToNewDocument;
WordApp.ActiveDocument.MailMerge.Execute;
end;
Procedure TWordObj.FilePrintSetup(NewPrinter: String);
Begin
WordApp.ActivePrinter := NewPrinter;
end;
Procedure TWordObj.FilePrint;
Begin
WordApp.ActiveDocument.PrintOut(False);
end;
Procedure TWordObj.FileClose;
Begin
WordApp.Documents.Close(wdDoNotSaveChanges);
end;
end.
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To use this object you do something like the following:
Word := TWordObj.Create(True); //show what's happening
Word.FileOpen('C:\My Documents\MyFile'); //open file
Word.MailMergeToDoc; //do merge
Word.FilePrint; //print merged document
Word.FileClose; //close all files
Word.Free;
This will open a specific file in Word and display it. If you look in the VBA reference that comes with MS Office (you have to specifically install it - it's not part of the standard install) you'll see many other things you can do with MS Word. Once you have created the OLE connection to Word through the "WordApp := CreateOleObject('Word.Application');" statement, you have access to just about any of the VBA commands that are available inside Word.