Article View: comp.os.ms-windows.programmer.misc
Article #2529Re: Use of STRICT def. in windows.h
From: John Grant
Date: Wed, 06 Jan 1993 22:16
Date: Wed, 06 Jan 1993 22:16
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In article <9301061117.PN20611@LL.MIT.EDU> khamsi@ll.mit.edu (Sarir Khamsi) writes: >Yo, > >Does anyone know where I can find information on what the meaning of >the > >#ifdef STRICT > >statements in the windows.h file is? Does this have anything to do w/ >NT, backward compatibility or what? Thanks in advance. Look at what it is doing in the windows.h file. You can see it all there. Basically, without STRICT, all of those HWND, HCURSOR, HPEN, etc handles are just UINTs, so the compiler can't detect an error like: PAINTSTRUCT ps; HDC hdc; HWND hwnd; hwnd=BeginPaint(hdc,&ps); when you actually wanted to do: hdc=BeginPaint(hwnd,&ps); With STRICT, each handle type is defined as a pointer to a dummy struct (a different one is defined for each type of handle). Now the compiler can check all arguments which now appear as pointers to specific structs. -- John A. Grant jagrant@emr1.emr.ca Airborne Geophysics Geological Survey of Canada, Ottawa
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Newsgroups: comp.os.ms-windows.programmer.misc Path: arc1-ca.pugleaf.net!sparky!uunet!spool.mu.edu!torn!nott!emr1!jagrant From: jagrant@emr1.emr.ca (John Grant) Subject: Re: Use of STRICT def. in windows.h Message-ID: <1993Jan6.221607.28940@emr1.emr.ca> Organization: Energy, Mines, and Resources, Ottawa References: <9301061117.PN20611@LL.MIT.EDU> Distribution: comp Date: Wed, 6 Jan 1993 22:16:07 GMT Lines: 32