[RESOLVED] Lines without semicolon.. What is it? Function calls?

The below code is taken from open source filezilla project (FileZilla_3.7.3_src\filezilla-3.7.3\src\interface\bookmarks_dialog.cpp)

Code:

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#include <filezilla.h>
#include "bookmarks_dialog.h"
#include "sitemanager.h"
#include "ipcmutex.h"
#include "themeprovider.h"
#include "xmlfunctions.h"

BEGIN_EVENT_TABLE(CNewBookmarkDialog, wxDialogEx)
EVT_BUTTON(XRCID("wxID_OK"), CNewBookmarkDialog::OnOK)
EVT_BUTTON(XRCID("ID_BROWSE"), CNewBookmarkDialog::OnBrowse)
END_EVENT_TABLE()

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I'm unable to understand what are these lines after the #include. They don't end in semicolons. Looks very much like function calls.

Are BEGIN_EVENT_TABLE, EVT_BUTTON and END_EVENT_TABLE function calls? Function calls should end with semicolons right?

Can someone help me with this.. thanks.

They all are macros.

Thanks VictorN. So these must be macro function calls and they must be defined somewhere else using #define. Am I correct?

Yes.

Thanks :)

to be more precise, macro's aren't "function calls" as you say it.

a better analogy is that they are "substituted" in-place by by the compiler in a separate step before the actual compilation.


the above isn't entirely right as it wouldn't really explain what's actually going on, but as a simple "this is how it usually works" analogy it's adequate to get a grasp on it.
If you look up the END_EVENT_TABLE() macro, you could copy the macro "value" and then paste this in place of the END_EVENT_TABLE() in the code, and then compile to get the same result.
You could do the same with the other macro's although it'll be a bit more work as you'd also have to properly substitute the macro parameters.


macro's have their uses, but as a general rule. Try to make your own code without defining your own. macro's have a few nasty sideeffects that can cause serious headaches :p