Databases
StackOverflow2013
Postsdbo
POPreventing multiple instances - but also handle the command line parameters?
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POPreventing multiple instances - but also handle the command line parameters?
    primarykey
    data
    text
    <p>I am handling from my Application associated extension files from Windows. So when you double click a file from Windows it will execute my program, and I handle the file from there, something like:</p> <pre><code>procedure TMainForm.FormCreate(Sender: TObject); var i: Integer; begin for i := 0 to ParamCount -1 do begin if SameText(ExtractFileExt(ParamStr(i)), '.ext1') then begin // handle my file.. // break if needed end else if SameText(ExtractFileExt(ParamStr(i)), '.ext2') then begin // handle my file.. // break if needed end else end; end; </code></pre> <p>That works pretty much how I want it to, but when I was testing I realised it does not consider using only one instance of my program.</p> <p>So for example, if I selected several Files from Windows and opened them all at the same time, this will create the same number of instances of my program with the number of Files being opened.</p> <p>What would be a good way to approach this, so that instead of several instances of my program being opened, any additional Files from Windows being opened will simply focus back to the one and only instance, and I handle the Files as normal?</p> <p>Thanks</p> <p><strong>UPDATE</strong></p> <p>I found a good article here: <a href="http://www.delphidabbler.com/articles?article=13&amp;part=2" rel="noreferrer">http://www.delphidabbler.com/articles?article=13&amp;part=2</a> which I think is what I need, and shows how to work with the Windows API as mentioned by rhooligan. I am going to read through it now..</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USmjn
    1. This table or related slice is empty.
    plurals
    1. PL
      singulars
      1. LTLinked
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    3. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POPreventing multiple instances - but also handle the command line parameters?
      1. This table or related slice is empty.
      1. VTDownMod
    2. VO
      singulars
      1. POPreventing multiple instances - but also handle the command line parameters?
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. POPreventing multiple instances - but also handle the command line parameters?
      1. This table or related slice is empty.
      1. VTUpMod
    1. This table or related slice is empty.
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload