WM_DROPFILES

[theo]

Can anybody explain the reason for the compiler switch EnableWMDropFiles used in win32callback.inc? Why is the WM_DROPFILES message disabled by default? Side effects if enabling it?

[Marc]

since it is only suppoerted on win32

[theo]

Thanks for you answer!
But I'm not sure if this is a good reason. It's only a message after all
Background is: I've made a little test unit based on this code:
http://www.mail-archive.com/lazarus@miraclec.com/msg03161.html
I've changed a little thing and now it also works for dropping files from Konqueror to a GTK1, GTK2 App.
The same unit works for win32 too, but only if you recompile the LCL with the EnableWMDropFiles switch.
The Test App is here: http://www.lazarusforum.de/viewtopic.php?t=673
If you don't like to register to the German Laz Forum but would like to see the code, tell me please.

If there is no side-effect to it, I'd suggest to enable this message by default.
If you agree, I'll make a feature request on the bugttracker.

[Paul Ishenin]

it is better to post your proposal with test app to bug tracker. then most of developers can look at it

[theo]

Well my proposal has not much to do with the test app.
The case I'm talking about is quite clear: No WM_DROPFILES in Win32 by default (intentionally blocked by compiler - switch).
My proposal ist to enable WM_DROPFILES by default.

[Vincent Snijders]

I suggest you upload your test app to the bug report.

[theo]

OK, done: http://www.freepascal.org/mantis/view.php?id=8976

[Vincent Snijders]

Thanks.