We help IT Professionals succeed at work.

We've partnered with Certified Experts, Carl Webster and Richard Faulkner, to bring you two Citrix podcasts. Learn about 2020 trends and get answers to your biggest Citrix questions!Listen Now

x

paramstr() can't handle long filenames?

hellfire052497
on
Medium Priority
484 Views
Last Modified: 2010-04-04
when using the paramstr() option for opening a file, it cannot handle long filenames. For example in explorer from windows and you doubleclick on a file then it starts the program but cannot load any file with a space.
and so refuses it to load in the edit field, I use richedit, and when I click a file it loads in the richedit field fine, but when the file contains a space it refuses to do so.
putting the file in brackets helps "this is a testfile.txt" from a commandline but this is not possible in explorer so what code does open and display long filenames correct?

The Code I use is as follows:

if ExtractFileName(ParamStr(1)) <> '' then
   begin
     OpenCode(ParamStr(1));


and Opencode relates to the Procedure Opencode...
What needs to be changed here.
Comment
Watch Question

Commented:
The problem is that ParamStr() sees the space character as a devider between multipul parameters.  If you only have a single parameter that is a filename, the solution is to fuse all the peices together.  See example below.

{'parameters' will hold the whole parameter string and will
  include any spaces}
parameters := '';
for x := 1 to paramCount do
  parameters := parameters + paramStr(x)+' ';


Not the solution you were looking for? Getting a personalized solution is easy.

Ask the Experts

Author

Commented:
Edited text of question

Author

Commented:
I updated my question, I included the code I use for opening.
Please give clear explanation of what needs to be changed in my codelines, I am pretty new to Delphi so explain a bit better.
Thanks

Commented:
Here is the WHOLE FormCreate event as it should be in your code.  Just copy and paste it in.:

procedure TForm1.FormCreate(Sender: TObject);
var
parameters:  string;
x:  integer;
begin
{Extract Parameters from ParamString.  Will include spaces.}
parameters := '';
for x := 1 to paramCount do
  begin
  parameters := parameters + paramStr(x);
  if x < paramCount then parameters := parameters +' ';{dont add a space to the last parameter}
  end;

{Process Parameters}
in Parameters <> '' then OpenCode(Parameters);
end;
Access more of Experts Exchange with a free account
Thanks for using Experts Exchange.

Create a free account to continue.

Limited access with a free account allows you to:

  • View three pieces of content (articles, solutions, posts, and videos)
  • Ask the experts questions (counted toward content limit)
  • Customize your dashboard and profile

*This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

OR

Please enter a first name

Please enter a last name

8+ characters (letters, numbers, and a symbol)

By clicking, you agree to the Terms of Use and Privacy Policy.