BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  How do I use OCX in Delphi          BorlandTalk.com Forum Index -> Delphi ActiveX Controls Usage View previous topic :: View next topic   Author Message Barry Guest Posted: Thu Oct 30, 2003 7:25 pm    Post subject: How do I use OCX in Delphi I have a com file from pdf_tools that I want to use with delphi. This program will print a pdf file. The problem is how do I use this with delphi? How do I create this class(?) do I can use it? The program compiles but give me an access violation when I run it on the following line. pdf_prt.PrintFile('c:578585.pdf','HP LaserJet 1200 Series PCL',''); Any help would be appreciated. unit Unit1; interface uses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls; type TForm1 = class(TForm) Button1: TButton; procedure Button1Click(Sender: TObject); private { Private declarations } public { Public declarations } end; var Form1: TForm1; implementation {$R *.dfm} uses printerocxlib_tlb; procedure TForm1.Button1Click(Sender: TObject); var pdf_prt : pdfprinter; begin pdf_prt.PrintFile('c:578585.pdf','HP LaserJet 1200 Series PCL',''); end; end. Back to top Ignacio Vazquez Guest Posted: Thu Oct 30, 2003 7:26 pm    Post subject: Re: How do I use OCX in Delphi "Barry" <barry_wells (AT) ca4 (DOT) uscourts.gov> wrote in message 3fa16516$1 (AT) newsgroups (DOT) borland.com... Quote: The program compiles but give me an access violation when I run it on the following line. pdf_prt.PrintFile('c:578585.pdf','HP LaserJet 1200 Series PCL',''); That's because you forgot to create a pdfprinter object: pdf_prt:=pdfprinter.Create(...); Cheers, Ignacio -- The strange part isn't so much that he had an accent. No accent was detectable. It was just sounds and burbs and gurgles coming from him. He was a like a chubby, old R2-D2. - La Üter Back to top Ignacio Vazquez Guest Posted: Thu Oct 30, 2003 7:36 pm    Post subject: Re: How do I use OCX in Delphi "Barry" <barry_wells (AT) ca4 (DOT) uscourts.gov> wrote in message 3fa167bc$1 (AT) newsgroups (DOT) borland.com... Quote: Actually, I tried that and I get Object or class type required. I don't know enough about the OCX to be able to help you with that. Do you have a link? Cheers, Ignacio -- The strange part isn't so much that he had an accent. No accent was detectable. It was just sounds and burbs and gurgles coming from him. He was a like a chubby, old R2-D2. - La Üter Back to top Barry Guest Posted: Thu Oct 30, 2003 7:36 pm    Post subject: Re: How do I use OCX in Delphi Actually, I tried that and I get Object or class type required. unit Unit1; interface uses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls; type TForm1 = class(TForm) Button1: TButton; procedure Button1Click(Sender: TObject); private { Private declarations } public { Public declarations } end; var Form1: TForm1; implementation {$R *.dfm} uses printerocxlib_tlb; procedure TForm1.Button1Click(Sender: TObject); var pdf_prt : pdfprinter; begin pdf_prt := pdfprinter.create(self); pdf_prt.PrintFile('c:578585.pdf','HP LaserJet 1200 Series PCL',''); end; end. "Ignacio Vazquez" <ivazquezATorioncommunications.com> wrote Quote: "Barry" <barry_wells (AT) ca4 (DOT) uscourts.gov> wrote in message 3fa16516$1 (AT) newsgroups (DOT) borland.com... The program compiles but give me an access violation when I run it on the following line. pdf_prt.PrintFile('c:578585.pdf','HP LaserJet 1200 Series PCL',''); That's because you forgot to create a pdfprinter object: pdf_prt:=pdfprinter.Create(...); Cheers, Ignacio -- The strange part isn't so much that he had an accent. No accent was detectable. It was just sounds and burbs and gurgles coming from him. He was a like a chubby, old R2-D2. - La Üter Back to top Barry Guest Posted: Thu Oct 30, 2003 7:58 pm    Post subject: Re: How do I use OCX in Delphi link? "Ignacio Vazquez" <ivazquezATorioncommunications.com> wrote Quote: "Barry" <barry_wells (AT) ca4 (DOT) uscourts.gov> wrote in message 3fa167bc$1 (AT) newsgroups (DOT) borland.com... Actually, I tried that and I get Object or class type required. I don't know enough about the OCX to be able to help you with that. Do you have a link? Cheers, Ignacio -- The strange part isn't so much that he had an accent. No accent was detectable. It was just sounds and burbs and gurgles coming from him. He was a like a chubby, old R2-D2. - La Üter Back to top Ignacio Vazquez Guest Posted: Thu Oct 30, 2003 8:19 pm    Post subject: Re: How do I use OCX in Delphi "Barry" <barry_wells (AT) ca4 (DOT) uscourts.gov> wrote in message 3fa16d01$1 (AT) newsgroups (DOT) borland.com... Quote: link? To the component, if it's available over the Internet. Cheers, Ignacio -- The strange part isn't so much that he had an accent. No accent was detectable. It was just sounds and burbs and gurgles coming from him. He was a like a chubby, old R2-D2. - La Üter Back to top Dennis Passmore Guest Posted: Thu Oct 30, 2003 11:28 pm    Post subject: Re: Re: How do I use OCX in Delphi If you have a true OCX library then the following syntax might be correct. uses printerocxlib_tlb; procedure TForm1.Button1Click(Sender: TObject); var pdf_prt : pdfprinter; begin pdf_prt := CoPdfprinter.create; pdf_prt.PrintFile('c:578585.pdf','HP LaserJet 1200 Series PCL',''); end; Dennis Passmore Ultimate Software, Inc. Back to top Barry Guest Posted: Fri Oct 31, 2003 12:34 pm    Post subject: Re: Re: How do I use OCX in Delphi That did it! Thank you. <Dennis Passmore> wrote Quote: If you have a true OCX library then the following syntax might be correct. uses printerocxlib_tlb; procedure TForm1.Button1Click(Sender: TObject); var pdf_prt : pdfprinter; begin pdf_prt := CoPdfprinter.create; pdf_prt.PrintFile('c:578585.pdf','HP LaserJet 1200 Series PCL',''); end; Dennis Passmore Ultimate Software, Inc. Back to top Barry Guest Posted: Fri Oct 31, 2003 1:08 pm    Post subject: Re: Re: How do I use OCX in Delphi Do I need to free it after I use it? "Barry" <barry_wells (AT) ca4 (DOT) uscourts.gov> wrote Quote: That did it! Thank you. Dennis Passmore> wrote in message news:3k73qvo9hcj3ieftf5bmiat81ph8slchh9 (AT) 4ax (DOT) com... If you have a true OCX library then the following syntax might be correct. uses printerocxlib_tlb; procedure TForm1.Button1Click(Sender: TObject); var pdf_prt : pdfprinter; begin pdf_prt := CoPdfprinter.create; pdf_prt.PrintFile('c:578585.pdf','HP LaserJet 1200 Series PCL',''); end; Dennis Passmore Ultimate Software, Inc. Back to top Dennis Passmore Guest Posted: Sat Nov 01, 2003 5:32 am    Post subject: Re: Re: Re: How do I use OCX in Delphi No, since it worked as I thought then it is a standard COM interface and just setting it to NIL or doing nothing is fine. Dennis Passmore Ultimate Software, Inc. 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