Shoutbox

Hey there!

I'm having trouble once again.
I'm currently trying to change the format of a DateTimeControl using the DTM_SETFORMAT message like this:

code:

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var DTM_SETFORMAT = 0x1032;
Wnd.SendControlMessage('DatCDDate', DTM_SETFORMAT, 0, Language.WndSettings['DateFormat']);

---

where:

• Wnd is the PlusWnd object containing the control
  
• DatCDDate is the name of the DateTimeControl
  
• Language.WndSettings['DateFormat'] is a string containing the new format (e.g.: "dd'/'MM'/'yyyy")

And the problem? It doesn't work.

Information about this message can be found on this MSDN page.

S.O.S.!

umm the page you linked to answered it

quote:

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lpszFormat
    Long pointer to a null-terminated format string...

---

You pass a pointer to the format string not the string itself.

So you should put the string in a databloc first and pass the pointer to that:

code:

---

var DTM_SETFORMAT = 0x1032;
var Format = Interop.Allocate(((Language.WndSettings['DateFormat'].length) * 2) + 2);
Format.WriteString(0, Language.WndSettings['DateFormat']);
Wnd.SendControlMessage('DatCDDate', DTM_SETFORMAT, 0, Format.DataPtr);

---

Yay! I already thought about a memory block pointer, but I never tried.
Thanks, Eljay!

One thing left: Why can't I use tt to display AM/PM in my control?