populating combo box

[foxnet]

I am trying to create a win32 application with a menu bar on the main window. This menu bar has an option to open a dialog box with list boxes. I am trying to fill these list boxes by usuing the "LB_ADDSTRING" message. However when I click on the list box to drop down the list, none of the items are listed.


My main menu bar has three options; "About", "Settings" and "Exit". The WM_COMMAND for the main window is listed below.

case WM_COMMAND:
WORD idControl = LOWORD(wParam);
HWND hwndCtl = (HWND) lParam;
switch(idControl) {
case IDD_FILE:
DialogBox(g_hInst,
MAKEINTRESOURCE(IDD_ABOUT), hwnd,
(DLGPROC)extradlg);
break;
case IDD_SET:
g_hwndODlg = CreateDialog(g_hInst,
MAKEINTRESOURCE(IDD_SETTINGS), hwnd,
(DLGPROC)optdlg);
ShowWindow(g_hwndODlg, SW_SHOW);
break;
case ID_EXIT:
break;
}
return(0);


All these options appear to be working fine. When the Settings option (IDD_SETTINGS) is chosen a new dialog window is display with the combo boxes I am trying to fill. The procedure I am using to fill these boxes is:

BOOL CALLBACK optdlg(HWND hwndDlg, UINT uMsg,
WPARAM wParam, LPARAM lParam )
{
int retstat;
HWND hListWnd;

switch(uMsg) {
case WM_INITDIALOG:
hListWnd = GetDlgItem(hwndDlg,IDC_LISTBOX);
SendMessage(hListWnd, LB_ADDSTRING, 0,
(LPARAM)"Item 1");
SendMessage(hListWnd, LB_ADDSTRING, 0,
(LPARAM)"Item 2");
SendMessage(hListWnd, LB_ADDSTRING, 0,
(LPARAM)"Item 3");
SetFocus(GetDlgItem(hwndDlg, IDC_LISTBOX));
return(false);
case WM_COMMAND:
WORD idControl = LOWORD(wParam);
HWND hwndCtl = (HWND) lParam;
switch(idControl) {
case IDOK:
EndDialog(hwndDlg, IDOK);
return(true);
case IDCANCEL:
DestroyWindow(g_hwndODlg);
g_hwndODlg = NULL;
return(true);
}
return (false);
}
return(false);
}

Thanks for any help you can provide.

 

[shetlandbob]

you should have tagged this on to your first question, it is the same topic I believe?

What do you get when you set and/or get the value from the combo box?

 

[foxnet]

on my first question I tried using the app wizard which made everything with classes. I didn't understand how to read the code it made so I switch to the win32 application and made the main function an APIENTRY WinMain. I haven't tried to set a value to the combobox yet. I have only tried to populate the list and setfocus. The setfocus appears to work.
Thanks

 

[shetlandbob]

when you set focus can you scroll through the list using the up/down arrows? Can you see the item in the list?

 

[foxnet]

When I set focus, the box turns blue, but when I click the arrow to drop down the list, the entire box is blank. I do have a list box and I can scroll through those entries, which I have added through LB_ADDSTRING. It is just the drop down combo I cannot get working.

Is it OK to add the SendMessage commands in the WM_INITDIALOG case ?

Thanks