Shoutbox

Hi,

Is there some WM_(X)-message that clears a ListBoxControl entirely?

I have tried this piece of code, without success:

code:

---

        for(i = 0; i <= PlusWnd.LstBox_GetCount("bLstFolders"); i++) {
            PlusWnd.LstBox_RemoveItem("bLstFiles",i);
        }

---

try:

code:

---

while(wnd.LstBox_GetCount("list")>0){
        wnd.LstBox_RemoveItem("list",0);
    }

---

Has anybody told you that you were clever?

Works, tnx

I'm not sure if the MsgPlus list box is implemented with the windows list box or not, but if it is, sending the LB_RESETCONTENT message should immediately empty it.

That does it

Thanks

-----------------------------------

quote:

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Originally posted by foaly
try:

code:

---

while(wnd.LstBox_GetCount("list")>0){
        wnd.LstBox_RemoveItem("list",0);
    }

---

---

I've tried this trick on a ListBoxControl and it seemed to work. On a ListViewControl, however, it crashes Messenger.. Is there any reason or solution to this problem?

code:

---

    while(WndSkinEditor.LstView_GetCount("vLstElementsLeft") >= 0) {
        WndSkinEditor.LstView_RemoveItem("vLstElementsLeft",0);
    }
    Debug.Trace("> Clearing \" vLstElementsRight\"");
    while(WndSkinEditor.LstView_GetCount("vLstElementsRight") >= 0) {
        WndSkinEditor.LstView_RemoveItem("vLstElementsRight",0);
    }

---

It's much better to use the Win32 control messages for this, as if you make a mistake in your while-loop, you'll end up in an endless loop of doom and thus crashing your Messenger.

For list boxes:

code:

---

PlusWnd.SendControlMessage("ListBox", /* LB_RESETCONTENT */ 0x184, 0, 0);

---

For list views:

code:

---

PlusWnd.SendControlMessage("ListView", /* LVM_DELETEALLITEMS */ 0x1009, 0, 0);

---

The worst thing you can get then is a "bad calling convention" or something in your Interop.GetLastError().

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Blah, you already solved it yourself. Anyway, this post is for future generations.

Yeah, excuses hea

Anyway, thanks for the solution (and for CDL 2.1 )