Last updated: 17. 1.1998, 20:40
<*/NOWARN:F*> MODULE WhatSize; (*----------------------------------------- WHATSIZE.C -- What Size is the Window? (c) Charles Petzold, 1996 WhatSize.MOD -- Translation to Stony Brook Modula-2 (c) Peter Stadler 27.09.1997 ----------------------------------------- *) IMPORT WINUSER; IMPORT WIN32; IMPORT WINX; IMPORT WINGDI; IMPORT SYSTEM; CONST szAppName = "WhatSize"; VAR hwnd : WIN32.HWND; msg : WINUSER.MSG; wc : WINUSER.WNDCLASSEX; CONST szHeading = "Mapping Mode Left Right Top Bottom"; szUndLine = "************ ***- ***-- *** ******"; VAR cxChar, cyChar : INTEGER; (*++++*****************************************************************) PROCEDURE Show (hwnd : WIN32.HWND; hdc : WIN32.HDC; xText,yText : INTEGER; iMapMode : INTEGER; szMapMode : ARRAY OF CHAR); (**********************************************************************) VAR szBuffer : ARRAY[0..59] OF CHAR; rect : WIN32.RECT; TYPE PointArray = ARRAY[0..1] OF WIN32.POINT; BEGIN WINGDI.SaveDC (hdc); WINGDI.SetMapMode (hdc, iMapMode); WINUSER.GetClientRect (hwnd, rect); WINGDI.DPtoLP (hdc, SYSTEM.CAST(PointArray,rect), 2); WINGDI.RestoreDC (hdc, -1); WINGDI.TextOut (hdc, xText, yText, szBuffer, WINUSER.wsprintf (szBuffer, "%-20s %7d %7d %7d %7d", SYSTEM.ADR(szMapMode), rect.left, rect.right, rect.top, rect.bottom)); END Show; <*/PUSH*> %IF WIN32 %THEN <*/CALLS:WIN32SYSTEM*> %ELSE <*/CALLS:WINSYSTEM*> %END (*++++*****************************************************************) PROCEDURE WndProc(hwnd : WIN32.HWND; (**********************************************************************) iMsg : WIN32.UINT; wParam : WIN32.WPARAM; lParam : WIN32.LPARAM) : WIN32.LRESULT [EXPORT]; VAR hdc : WIN32.HDC; ps : WINUSER.PAINTSTRUCT; tm : WINGDI.TEXTMETRIC; BEGIN CASE (iMsg) OF | WINUSER.WM_CREATE: hdc := WINUSER.GetDC (hwnd); WINGDI.SelectObject (hdc, WINGDI.GetStockObject (WINGDI.SYSTEM_FIXED_FONT)); WINGDI.GetTextMetrics (hdc, tm); cxChar := tm.tmAveCharWidth; cyChar := tm.tmHeight + tm.tmExternalLeading; WINUSER.ReleaseDC (hwnd, hdc); RETURN 0; | WINUSER.WM_PAINT: hdc := WINUSER.BeginPaint (hwnd, ps); WINGDI.SelectObject (hdc, WINGDI.GetStockObject (WINGDI.SYSTEM_FIXED_FONT)); WINGDI.SetMapMode (hdc, WINGDI.MM_ANISOTROPIC); WINGDI.SetWindowExtEx (hdc, 1, 1, WINX.NIL_SIZE); WINGDI.SetViewportExtEx (hdc, cxChar, cyChar, WINX.NIL_SIZE); WINGDI.TextOut (hdc, 1, 1, szHeading, LENGTH(szHeading)); WINGDI.TextOut (hdc, 1, 2, szUndLine, LENGTH(szUndLine)); Show (hwnd, hdc, 1, 3, WINGDI.MM_TEXT, "TEXT (pixels)"); Show (hwnd, hdc, 1, 4, WINGDI.MM_LOMETRIC, "LOMETRIC (.1 mm)"); Show (hwnd, hdc, 1, 5, WINGDI.MM_HIMETRIC, "HIMETRIC (.01 mm)"); Show (hwnd, hdc, 1, 6, WINGDI.MM_LOENGLISH, "LOENGLISH (.01 in)"); Show (hwnd, hdc, 1, 7, WINGDI.MM_HIENGLISH, "HIENGLISH (.001 in)"); Show (hwnd, hdc, 1, 8, WINGDI.MM_TWIPS, "TWIPS (1\1440 in)"); WINUSER.EndPaint (hwnd, ps); RETURN 0; | WINUSER.WM_DESTROY: WINUSER.PostQuitMessage (0); RETURN 0; ELSE RETURN WINUSER.DefWindowProc (hwnd, iMsg, wParam, lParam); END; END WndProc; <*/POP*> (*++++*****************************************************************) PROCEDURE InitApplication () : BOOLEAN; (**********************************************************************) BEGIN wc.cbSize := SIZE(WINUSER.WNDCLASSEX); wc.style := WINUSER.CS_HREDRAW BOR WINUSER.CS_VREDRAW; wc.lpfnWndProc := WndProc; wc.cbClsExtra := 0; wc.cbWndExtra := 0; wc.hInstance := WINX.Instance; wc.hIcon := WINUSER.LoadIcon (NIL, WINUSER.IDI_APPLICATION^); wc.hCursor := WINUSER.LoadCursor (NIL, WINUSER.IDC_ARROW^); wc.hbrBackground := SYSTEM.CAST(WIN32.HBRUSH, WINGDI.GetStockObject (WINGDI.WHITE_BRUSH)); wc.lpszMenuName := NIL; wc.lpszClassName := SYSTEM.ADR(szAppName); wc.hIconSm := WINUSER.LoadIcon (NIL, WINUSER.IDI_APPLICATION^); RETURN WINUSER.RegisterClassEx (wc)#0; END InitApplication; (*++++*****************************************************************) PROCEDURE InitMainWindow () : BOOLEAN; (**********************************************************************) BEGIN hwnd := WINUSER.CreateWindow (szAppName, (* window class name *) "What Size is the Window: Translation to Stony Brook Modula-2", (* window caption *) WINUSER.WS_OVERLAPPEDWINDOW, (* window style *) WINUSER.CW_USEDEFAULT, (* initial x position *) WINUSER.CW_USEDEFAULT, (* initial y position *) WINUSER.CW_USEDEFAULT, (* initial x size *) WINUSER.CW_USEDEFAULT, (* initial y size *) NIL, (* parent window handle *) NIL, (* window menu handle *) WINX.Instance, (* program instance handle *) NIL); (* creation parameters *) IF hwnd = NIL THEN RETURN FALSE; END; WINUSER.ShowWindow (hwnd, WINUSER.SW_SHOWDEFAULT); WINUSER.UpdateWindow (hwnd); RETURN TRUE; END InitMainWindow; (*++++*****************************************************************) BEGIN IF InitApplication() AND InitMainWindow() THEN WHILE (WINUSER.GetMessage(msg,NIL,0,0)) DO WINUSER.TranslateMessage(msg); WINUSER.DispatchMessage(msg); END; END; END WhatSize.