Sample Code
Windows Driver Samples/ Generic Text-Only Driver/ C++/ ui/ debug.h/
// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF // ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO // THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A // PARTICULAR PURPOSE. // // Copyright 1996-2003 Microsoft Corporation. All Rights Reserved. // // FILE: Debug.H // // PURPOSE: Define common data types, and external function prototypes // for debugging functions. // #pragma once // VC and Build use different debug defines. // The following makes it so either will // cause the inclusion of debugging code. #if !defined(_DEBUG) && defined(DBG) #define _DEBUG DBG #elif defined(_DEBUG) && !defined(DBG) #define DBG _DEBUG #endif ///////////////////////////////////////////////////////// // Macros ///////////////////////////////////////////////////////// // // These macros are used for debugging purposes. They expand // to white spaces on a free build. Here is a brief description // of what they do and how they are used: // // giDebugLevel // Global variable which set the current debug level to control // the amount of debug messages emitted. // // VERBOSE(msg) // Display a message if the current debug level is <= DBG_VERBOSE. // // TERSE(msg) // Display a message if the current debug level is <= DBG_TERSE. // // WARNING(msg) // Display a message if the current debug level is <= DBG_WARNING. // The message format is: WRN filename (linenumber): message // // ERR(msg) // Similiar to WARNING macro above - displays a message // if the current debug level is <= DBG_ERROR. // // ASSERT(cond) // Verify a condition is true. If not, force a breakpoint. // // ASSERTMSG(cond, msg) // Verify a condition is true. If not, display a message and // force a breakpoint. // // RIP(msg) // Display a message and force a breakpoint. // // Usage: // These macros require extra parantheses for the msg argument // example, ASSERTMSG(x > 0, ("x is less than 0\n")); // WARNING(("App passed NULL pointer, ignoring...\n")); // #define DBG_VERBOSE 1 #define DBG_TERSE 2 #define DBG_WARNING 3 #define DBG_ERROR 4 #define DBG_RIP 5 #define DBG_NONE 6 #if DBG #define DebugMsg DebugMessage // // Strip the directory prefix from a filename (ANSI version) // PCSTR StripDirPrefixA( IN PCSTR pstrFilename ); extern INT giDebugLevel; #define DBGMSG(level, prefix, msg) { \ if (giDebugLevel <= (level)) { \ DebugMsg("%s %s (%d): ", prefix, StripDirPrefixA(__FILE__), __LINE__); \ DebugMsg(msg); \ } \ } #define DBGPRINT(level, msg) { \ if (giDebugLevel <= (level)) { \ DebugMsg(msg); \ } \ } #define VERBOSE if(giDebugLevel <= DBG_VERBOSE) DebugMsg #define TERSE if(giDebugLevel <= DBG_TERSE) DebugMsg #define WARNING if(giDebugLevel <= DBG_WARNING) DebugMsg #define ERR if(giDebugLevel <= DBG_ERROR) DebugMsg #define ASSERT(cond) { \ if (! (cond)) { \ RIP(("\n")); \ } \ } #define ASSERTMSG(cond, msg) { \ if (! (cond)) { \ RIP(msg); \ } \ } #define RIP(msg) { \ DBGMSG(DBG_RIP, "RIP", msg); \ DebugBreak(); \ } #else // !DBG #define DebugMsg NOP_FUNCTION #define VERBOSE NOP_FUNCTION #define TERSE NOP_FUNCTION #define WARNING NOP_FUNCTION #define ERR NOP_FUNCTION #define ASSERT(cond) #define ASSERTMSG(cond, msg) #define RIP(msg) #define DBGMSG(level, prefix, msg) #define DBGPRINT(level, msg) #endif ///////////////////////////////////////////////////////// // ProtoTypes ///////////////////////////////////////////////////////// BOOL DebugMessage(LPCSTR, ...); BOOL DebugMessage(LPCWSTR, ...); void Dump(PPUBLISHERINFO pPublisherInfo); void Dump(POEMDMPARAM pOemDMParam); void Dump(PPROPSHEETUI_INFO pPSUIInfo);
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