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Using Open With Dialog

Posted on 2000-05-12
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Last Modified: 2010-04-04
Hi All!

There is an dialog in Windows called 'Open With'. It is not supported by Delphi and there is no information about it into MSDN. My question: How to use this dialog in my application in order to give user a way to open document thru this dialog for choosing application.

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Question by:Fatman121898
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6 Comments
 
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Expert Comment

by:shenqw
ID: 2803817
listening
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Expert Comment

by:BoRiS
ID: 2803924
Fatman

I seem to remember playing with this a while ago, but never really got anywhere, one place to look is the IShellBrowser ot IShellExecute I think it was there that I saw related stuff to the IContextMenu etc...

Hope this helps a little...

Later
BoRiS

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LVL 17

Accepted Solution

by:
inthe earned 50 total points
ID: 2806001
HI,
you can use it from url.dll
example:


unit UrlAPI;
 
interface
 
uses Windows;
 
function URLAssociationDialogA(
hwndParent: HWND;
  dwInFlags: DWORD;
  pcszFile: PAnsiChar;
  pcszURL: PAnsiChar;
  pszAppBuf: PAnsiChar;
  ucAppBufLen: UINT  ): Integer; stdcall;
 
function URLAssociationDialogW(
hwndParent: HWND;
dwInFlags: DWORD;
  pcszFile: PWideChar;
  pcszURL: PWideChar;
  pszAppBuf: PWideChar;
  ucAppBufLen: UINT ): Integer; stdcall;
 
function URLAssociationDialog(
hwndParent: HWND;
  dwInFlags: DWORD;
  pcszFile: PChar;
  pcszURL: Pchar;
  pszAppBuf: PChar;
  ucAppBufLen: UINT ): Integer; stdcall;
 
 
const
url = 'url.dll';
URLASSOCDLG_FL_USE_DEFAULT_NAME  = $0001;
URLASSOCDLG_FL_REGISTER_ASSOC    = $0002;
 
implementation
 
function URLAssociationDialogA; external url name 'URLAssociationDialogA'; function URLAssociationDialogW; external url name 'URLAssociationDialogW'; function URLAssociationDialog; external url name 'URLAssociationDialogA';
 
 
end.





unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,   StdCtrls, UrlAPI;

type
  TForm1 = class(TForm)
    Button1: TButton;
    OpenDialog1: TOpenDialog;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.DFM}

procedure TForm1.Button1Click(Sender: TObject);
var
hwndParent : integer;
  dwInFlags : dword;
pcszFile : string;
pcszURL : string;
  pszAppBuf : array[0..255]of char;
  ucAppBufLen : integer;
begin
with opendialog1 do begin
  if (execute) then begin
  hwndParent := self.handle;
  pcszFile := filename;
  //pcszURL := 'file://c|/windows/notepad.exe';
  pcszURL := 'file://C|/Program Files/Microsoft Office/Office/excel.exe';
  ucAppBufLen := sizeof(pszAppBuf);
  URLAssociationDialog(
    hwndParent,
    URLASSOCDLG_FL_REGISTER_ASSOC,
    pchar(pcszFile),
    pchar(pcszURL),
    @pszAppBuf,
    ucAppBufLen);
  end;{if}
end;{with}
end;

end.



Regards Barry
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LVL 10

Expert Comment

by:ptmcomp
ID: 2806065
On WinNT4 and Win95 that was just a DLL call (you found it in the registry (look for "open with" and what's written in it's command line). But now (on W2k) this is a COM interface and I don't know how to get that.
Regards, ptm.
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Expert Comment

by:ptmcomp
ID: 2806068
When you have found it, please put the line here. I'll test it on Win2k.
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Author Comment

by:Fatman121898
ID: 2813987
It works. Thanks, Barry!
Ptcomp, Barry found it.
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