deselect text in combo box

I have created a combo box like this :

Code:

---

combo_hwnd = CreateWindowEx(WS_EX_WINDOWEDGE, "COMBOBOX" , NULL, WS_CHILD | WS_VISIBLE | WS_TABSTOP | CBS_DROPDOWN , left, top, width , height , parent_hwnd, NULL, NULL, NULL);

---

When I select an item from a drop down list, its text appears normally in the edit part, but it always appears as selected text. I want to deselect this text, and I tried to achieve that by sending CB_SETEDITSEL message, right after item selection:

Code:

---

case WM_COMMAND:
                   
          switch(HIWORD(wParam))
              {
                            case CBN_SELCHANGE:
                                        SendMessage(combo_hwnd , CB_SETEDITSEL ,  0, MAKELPARAM(-1,0));
                                        break;
              }

---

This doesn't change anything to my combo box, so does anybody know how to deselect the text from a combo box?

Try PostMessage rather than SendMessage.

That seems to work. Thanks.

Welcome! :)