Dialog Tab Control Help

[loadpoint]

Hi

Im having some problems setting up a dialog tab control. I have modified the Angle example program and added a tab control to the dialog resource called 100. I have added the following code to the WM_CREATE message but the tab control displays nothing.

lret = DlgInit(100, gdlg)

lret = DlgSet(gdlg, IDC_TAB, 2,DLG_NUMITEMS)
!!!!! lret = DlgSetSub(gdlg, IDC_TAB, ChangeTabSub)
lret = DlgSet(gdlg, IDC_TAB, "Input Parameters", 1)
lret = DlgSet(gdlg, IDC_TAB, "Output Parameters", 2)
lret = DlgSet(gdlg, IDC_TAB, IDD_TAB_DIALOG1, 1)
lret = DlgSet(gdlg, IDC_TAB, IDD_TAB_DIALOG2, 2)

I don't think I have a handle to the dialog as it is shown with the following code before I added my own code.

hwndDlg = CreateDialogParam(hInst, INT4(100), hwnd, LOC(DlgProc), 0)
hDlg = hwndDlg

lret = ShowWindow(hwndDlg, SW_SHOW)

How can I get a handle to the dialog so that I can use DlgSet()? I have attached the full code incase there is a better place to set up the tab control.

Any help greatly appreciated.

[anthonyrichards]

If you use DgInit(IDD_DIALOG, Dlg) to create a dialog box, you must define Dlg as drived type TYPE DIALOG:

USE DFLOGM

type (dialog) dlg

you can thenget the dialog window handle as Dlg%hWnd.

[loadpoint]

The code that shows the dialog is not lret = DlgInit(100, gdlg) but the following:

hwndDlg = CreateDialogParam(hInst, INT4(100), hwnd, LOC(DlgProc), 0)
hDlg = hwndDlg

lret = ShowWindow(hwndDlg, SW_SHOW)

How can I set up the tab control from the ShowWindow function?

[anthonyrichards]

You apparently get the dialog handle as HwndDlg from CreateDialogParam.

To set up the dialog as you want it, you can send messages to dialog items using SendDlGItemMessage

Code:

SendDlgItemMessage(
  HWND hDlg,     &  !handle of dialog box
  int nIDDlgItem, & ! identifier of control
  UINT Msg,       & ! message to send
  WPARAM wParam,  & ! first message parameter
  LPARAM lParam   & ! second message parameter  )

All the Tab controlmessages you need , along with the parameters they require can be found by searching the Help for messages beginning TCM_ .