Topic: XMPlay Open Dialog

[Irrational86]

Hi Ian, how is it that you can make a custom Open Dialog? How do you modify the original dialog to include other controls? Maybe a piece of source code, or a doc on how to do it would be just fine.

[Ian @ un4seen]

You need to specify a callback function in the "lpfnHook" member in the OPENFILENAME structure when you call GetOpenFileName, and then create the extra contols in that callback/hook function when it receives the WM_INITDIALOG message... I'm sure there must be Delphi classes that'll simplify the process for you though

[Torkell]

I thought you had to pass a handle to a dialog resource in the lpTemplateName field of the structure.

[Ian @ un4seen]

Yep, you could use a template instead of creating the extra controls by hand. Either way, you'll still need to implement a callback/hook function to initialize your controls and process notifications from them

[Irrational86]

Ok...i got that part done, but what do i do to make the dialog change its current dir??

[Torkell]

Do you mean change the initial directory of the dialog or change to another directory on command?

[Olego]

Do you mean change the initial directory of the dialog or change to another directory on command?

Because to change the initial directory, you only have to set the OPENFILENAME::lpstrInitialDir parameter.  (And Ian likes to GetCurrentDirectory(MAX_PATH, currentDirectory); which makes life simple. )

I don't understand what "on command" means.
~Olego~

[Torkell]

I don't understand what "on command" means.
~Olego~

i.e. I pass a dialog template which adds a button. Click on the button at get taken to C:\.

[Irrational86]

What i mean is, after the dialog is open, how do i change to a specific Directory using code? I know about the InitialDir thing, but i want to change it after the dialog has been opened (While its open).

[Irrational86]

Can any one help?? Ian??

[Torkell]

You could try finding the handle of the edit control and posting messages to it (feeding it the path and the return key to make it change dir).

[Ian @ un4seen]

Boggy has the idea. The edit control has the id 0x480. Send the BN_CLICKED notification (for the "OK" button) to the parent window to make the change.

[Irrational86]

You could try finding the handle of the edit control and posting messages to it (feeding it the path and the return key to make it change dir).

Heh, i thought of this already, but i also thought there was a cleaner way, so i waited for a response from Ian on how he does it on XMPlay...