Moving just one part of listbox

I have programmed a listbox onto the client area. In CreateWindowEx I have set where the list box should be placed on the client and how wide at creation time. But, when the user does something to enter a string, I want to make the listbox accomidate (sp?) to fit another string by making it cyChar longer. I know that I would use MoveWindow to do this sort of thing, but I don't want to fool around with the other three values of the placement/size of the listbox. Is there an easier way to just make the listbox longer without as much risk?

Garfield

What's wrong with MoveWindow? All you need do is store the coords of your listbox - just change those variables and feed them into MoveWindow as required. So if width is all you need change then, for example (pseudo-code):

nListBoxWidth=nNewListBoxWidth;
MoveWindow(hwndListBox,Left,Top,nListBoxWidth,Heig ht,1);

...or longer...but i'm sure you get the idea.

Or...

You could just give the listbox the WS_VSCROLL style, ie give it a vertical scrollbar, instead and let it deal with accomodating your expanding list.

>> You could just give the listbox the WS_VSCROLL style, ie give it a vertical scrollbar, instead and let it deal with accomodating your expanding list. <<

Yeah, I'll probably just do this. I had this in the back of my mind, but I wanted to see if I couldn't just expand the listbox with everystring.

Another question...

Would it be the combo box child that is a "drop-down listbox"? Or just another window type of the listbox? That could also be another way for me to do this. Thanks......

Garfield

Another way is to scroll it up each time a string is entered. The style is 'show selection always'.

or dynamically

Code:

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        SendMessage(hListBox, LVM_GETITEMRECT, (WPARAM)(int)iRow, (LPARAM)(LPRECT) &ItemRect);
        SendMessage(hListBox, LVM_SCROLL, (WPARAM)0, (LPARAM) (ItemRect.bottom-ItemRect.top));
        SendMessage(hListBox, LVM_ENSUREVISIBLE, (WPARAM)iRow, (LPARAM)FALSE);

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Code:

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SetWindowPos(listBox, 0, 0, 0, newWidth, newHeight, SWP_NOZORDER | SWP_NOMOVE);

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