Last updated: 18. 1.1998, 14:58
<* +M2EXTENSIONS *> MODULE Resourc1; (*----------------------------------------------------------- RESOURC1.C --- Icon and Cursor Demonstration Program No. 1 (c) Charles Petzold, 1996 Resourc1.mod --- Translation to XDS Modula-2 (c) Peter Stadler, 1997 -----------------------------------------------------------*) IMPORT Windows; IMPORT SYSTEM; CONST szAppName = "Resourc1"; VAR hwnd : Windows.HWND; msg : Windows.MSG; wc : Windows.WNDCLASSEX; hInst : Windows.HINSTANCE; hIcon : Windows.HICON; cxIcon : INTEGER; cyIcon : INTEGER; cxClient : INTEGER; cyClient : INTEGER; hdc : Windows.HDC; ps : Windows.PAINTSTRUCT; (*++++*****************************************************************) PROCEDURE [Windows.CALLBACK] WndProc (hwnd : Windows.HWND; (**********************************************************************) iMsg : Windows.UINT; wParam : Windows.WPARAM; lParam : Windows.LPARAM) : Windows.LRESULT; VAR x : INTEGER; y : INTEGER; BEGIN CASE (iMsg) OF | Windows.WM_CREATE : hIcon := Windows.LoadIcon (hInst, szAppName); cxIcon := Windows.GetSystemMetrics (Windows.SM_CXICON); cyIcon := Windows.GetSystemMetrics (Windows.SM_CYICON); RETURN 0; | Windows.WM_SIZE : cxClient := Windows.LOWORD (lParam); cyClient := Windows.HIWORD (lParam); RETURN 0; | Windows.WM_PAINT : hdc := Windows.BeginPaint (hwnd, ps); y := cyIcon; LOOP x := cxIcon; LOOP Windows.DrawIcon (hdc, x, y, hIcon); INC(x,2*cxIcon); IF(x > cxClient) THEN EXIT; END; END; INC(y,2*cyIcon); IF(y > cyClient) THEN EXIT; END; END; Windows.EndPaint (hwnd, ps); RETURN 0; | Windows.WM_DESTROY : Windows.PostQuitMessage (0); RETURN 0; ELSE RETURN Windows.DefWindowProc (hwnd, iMsg, wParam, lParam); END; END WndProc; (*++++*****************************************************************) PROCEDURE InitApplication () : BOOLEAN; (**********************************************************************) BEGIN wc.cbSize := SIZE(wc); 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 (Windows.MyInstance(), szAppName); wc.hCursor := Windows.LoadCursor (Windows.MyInstance(), szAppName); wc.hbrBackground := SYSTEM.CAST(Windows.HBRUSH, SYSTEM.CAST(CARDINAL,Windows.COLOR_WINDOW)+1); wc.lpszMenuName := NIL; wc.lpszClassName := SYSTEM.ADR(szAppName); wc.hIconSm := Windows.LoadIcon (Windows.MyInstance(), szAppName); RETURN Windows.RegisterClassEx(wc)#0; END InitApplication; (*++++*****************************************************************) PROCEDURE InitMainWindow () : BOOLEAN; (**********************************************************************) BEGIN hInst := Windows.MyInstance(); hwnd := Windows.CreateWindow (szAppName, "Icon and Cursor Demo 1: Translation to XDS Modula-2", Windows.WS_OVERLAPPEDWINDOW, Windows.CW_USEDEFAULT, Windows.CW_USEDEFAULT, Windows.CW_USEDEFAULT, Windows.CW_USEDEFAULT, NIL, NIL, Windows.MyInstance(), NIL); 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 Resourc1.