Last updated: 18. 1.1998, 15:51
<* +M2EXTENSIONS *> MODULE PoorMenu; (*----------------------------------------- POORMENU.C --- The Poor Person's Menu (c) Charles Petzold, 1996 PoorMenu.mod --- Translation to XDS Modula-2 (c) Peter Stadler, 1998 -----------------------------------------*) IMPORT h2d_PopMenu; IMPORT Windows; IMPORT SYSTEM; CONST szAppName = "PoorMenu"; VAR hwnd : Windows.HWND; msg : Windows.MSG; wc : Windows.WNDCLASSEX; hMenu : Windows.HMENU; CONST IDM_ABOUT = 1; CONST IDM_HELP = 2; CONST IDM_REMOVE = 3; (*++++*****************************************************************) PROCEDURE [Windows.CALLBACK] WndProc (hwnd : Windows.HWND; iMsg : Windows.UINT; wParam : Windows.WPARAM; lParam : Windows.LPARAM) : Windows.LRESULT; (**********************************************************************) BEGIN CASE (iMsg) OF | Windows.WM_SYSCOMMAND : CASE (Windows.LOWORD (wParam)) OF | IDM_ABOUT : Windows.MessageBox (hwnd, "A Poor-Person's Menu Program.", szAppName, Windows.MB_OK + Windows.MB_ICONINFORMATION); RETURN 0; | IDM_HELP : Windows.MessageBox (hwnd, "Help not yet implemented!", szAppName, Windows.MB_OK + Windows.MB_ICONEXCLAMATION); RETURN 0; | IDM_REMOVE : Windows.GetSystemMenu (hwnd, TRUE); RETURN 0; ELSE END; | Windows.WM_DESTROY : Windows.PostQuitMessage (0); RETURN 0; ELSE RETURN Windows.DefWindowProc (hwnd, iMsg, wParam, lParam); END; RETURN Windows.DefWindowProc (hwnd, iMsg, wParam, lParam); END WndProc; (*++++*****************************************************************) PROCEDURE InitApplication () : BOOLEAN; (**********************************************************************) VAR rc : CARDINAL; 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); rc := Windows.RegisterClassEx (wc); RETURN rc #0; END InitApplication; (*++++*****************************************************************) PROCEDURE InitMainWindow () : BOOLEAN; (**********************************************************************) BEGIN hwnd := Windows.CreateWindow (szAppName, "The Poor-Person's Menu: 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; hMenu := Windows.GetSystemMenu (hwnd, FALSE); Windows.AppendMenu (hMenu, Windows.MF_SEPARATOR, 0, NIL); Windows.AppendMenu (hMenu, Windows.MF_STRING, IDM_ABOUT, "About..."); Windows.AppendMenu (hMenu, Windows.MF_STRING, IDM_HELP, "Help..."); Windows.AppendMenu (hMenu, Windows.MF_STRING, IDM_REMOVE, "Remove Additions"); 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 PoorMenu.