Last updated: 18. 1.1998, 15:46
<* +M2EXTENSIONS *>
MODULE NoPopUps;
(*-------------------------------------------------
NOPOPUPS.C --- Demonstrates No-Popup Nested Menu
(c) Charles Petzold, 1996
NoPopUps.mod --- Translation to XDS Modula-2
(c) Peter Stadler, 1997
-------------------------------------------------*)
IMPORT h2d_NoPopUps;
IMPORT Windows;
IMPORT SYSTEM;
CONST
szAppName = "NoPopUps";
VAR
hwnd : Windows.HWND;
msg : Windows.MSG;
wc : Windows.WNDCLASSEX;
hMenuMain : Windows.HMENU;
hMenuEdit : Windows.HMENU;
hMenuFile : Windows.HMENU;
(*++++*****************************************************************)
PROCEDURE [Windows.CALLBACK] WndProc (hwnd : Windows.HWND;
iMsg : Windows.UINT;
wParam : Windows.WPARAM;
lParam : Windows.LPARAM) : Windows.LRESULT;
(**********************************************************************)
VAR
hInstance : Windows.HINSTANCE;
BEGIN
CASE (iMsg) OF
| Windows.WM_CREATE :
hInstance := SYSTEM.CAST(Windows.HINSTANCE,Windows.GetWindowLong (hwnd, Windows.GWL_HINSTANCE));
hMenuMain := Windows.LoadMenu (hInstance, "MenuMain");
hMenuFile := Windows.LoadMenu (hInstance, "MenuFile");
hMenuEdit := Windows.LoadMenu (hInstance, "MenuEdit");
Windows.SetMenu (hwnd, hMenuMain);
RETURN 0;
| Windows.WM_COMMAND :
CASE (Windows.LOWORD (wParam)) OF
| h2d_NoPopUps.IDM_MAIN :
Windows.SetMenu (hwnd, hMenuMain);
RETURN 0;
| h2d_NoPopUps.IDM_FILE :
Windows.SetMenu (hwnd, hMenuFile);
RETURN 0;
| h2d_NoPopUps.IDM_EDIT :
Windows.SetMenu (hwnd, hMenuEdit);
RETURN 0;
| h2d_NoPopUps.IDM_NEW :
Windows.MessageBeep (SYSTEM.CAST(Windows.MB_SET,0));
RETURN 0;
| h2d_NoPopUps.IDM_OPEN :
Windows.MessageBeep (SYSTEM.CAST(Windows.MB_SET,0));
RETURN 0;
| h2d_NoPopUps.IDM_SAVE :
Windows.MessageBeep (SYSTEM.CAST(Windows.MB_SET,0));
RETURN 0;
| h2d_NoPopUps.IDM_SAVEAS :
Windows.MessageBeep (SYSTEM.CAST(Windows.MB_SET,0));
RETURN 0;
| h2d_NoPopUps.IDM_UNDO :
Windows.MessageBeep (SYSTEM.CAST(Windows.MB_SET,0));
RETURN 0;
| h2d_NoPopUps.IDM_CUT :
Windows.MessageBeep (SYSTEM.CAST(Windows.MB_SET,0));
RETURN 0;
| h2d_NoPopUps.IDM_COPY :
Windows.MessageBeep (SYSTEM.CAST(Windows.MB_SET,0));
RETURN 0;
| h2d_NoPopUps.IDM_PASTE :
Windows.MessageBeep (SYSTEM.CAST(Windows.MB_SET,0));
RETURN 0;
| h2d_NoPopUps.IDM_DEL :
Windows.MessageBeep (SYSTEM.CAST(Windows.MB_SET,0));
RETURN 0;
ELSE
RETURN 0;
END;
| Windows.WM_DESTROY :
Windows.SetMenu (hwnd, hMenuMain);
Windows.DestroyMenu (hMenuFile);
Windows.DestroyMenu (hMenuEdit);
Windows.PostQuitMessage (0);
RETURN 0;
ELSE
RETURN Windows.DefWindowProc (hwnd, iMsg, wParam, lParam);
END;
END WndProc;
(*++++*****************************************************************)
PROCEDURE InitApplication () : BOOLEAN;
(**********************************************************************)
BEGIN
wc.cbSize := SIZE(Windows.WNDCLASSEX);
wc.style := Windows.CS_HREDRAW + Windows.CS_VREDRAW;
wc.lpfnWndProc := WndProc;
wc.cbClsExtra := 0;
wc.cbWndExtra := 0;
wc.hInstance := Windows.MyInstance();
wc.hIcon := Windows.LoadIcon (NIL, Windows.IDI_APPLICATION);
wc.hCursor := Windows.LoadCursor (NIL, Windows.IDC_ARROW);
wc.hbrBackground := SYSTEM.CAST(Windows.HBRUSH, Windows.GetStockObject (Windows.WHITE_BRUSH));
wc.lpszMenuName := NIL;
wc.lpszClassName := SYSTEM.ADR(szAppName);
wc.hIconSm := Windows.LoadIcon (NIL, Windows.IDI_APPLICATION);
RETURN Windows.RegisterClassEx (wc)#0;
END InitApplication;
(*++++*****************************************************************)
PROCEDURE InitMainWindow () : BOOLEAN;
(**********************************************************************)
BEGIN
hwnd := Windows.CreateWindow
(szAppName, (* window class name *)
"No-Popup Nested Menu Demonstration: Translation to XDS Modula-2",
(* window caption *)
Windows.WS_OVERLAPPEDWINDOW, (* window style *)
Windows.CW_USEDEFAULT, (* initial x position *)
Windows.CW_USEDEFAULT, (* initial y position *)
Windows.CW_USEDEFAULT, (* initial x size *)
Windows.CW_USEDEFAULT, (* initial y size *)
NIL, (* parent window handle *)
NIL, (* window menu handle *)
Windows.MyInstance(), (* program instance handle *)
NIL); (* creation parameters *)
IF hwnd = NIL THEN
RETURN FALSE;
END;
Windows.ShowWindow (hwnd, Windows.SW_SHOWDEFAULT);
Windows.UpdateWindow (hwnd);
RETURN TRUE;
END InitMainWindow;
(*++++*****************************************************************)
BEGIN
IF InitApplication() AND InitMainWindow() THEN
WHILE (Windows.GetMessage(msg,NIL,0,0)) DO
Windows.TranslateMessage(msg);
Windows.DispatchMessage(msg);
END;
END;
END NoPopUps.