VC++实现解析快捷方式

桌面上那些五颜六色的图标可能大家非常熟悉吧？不知大家注意到没有，这些图标都有一个共同的特点，在每个图标的左下角都有一个非常小的箭头。这个箭头就是用来表明该图标是一个快捷方式的。快捷方式是Windows提供的一种快速启动程序、打开文件或文件夹的方法。他是应用程序的快速连接。 他的扩展名为.lnk。
一般来说快捷方式就是一种用于快速启动程序的命令行。它和程序既有区别又有联系。打个简单的比方，如果把程序比作一台电视机的话，快捷方式就像是一只遥控板。通过遥控板我们可以轻松快捷地控制电视的开关、频道的选择等。没有了遥控板我们还可以走到电视机面前进行操作，只是没有遥控那么方便罢了，并不会影响到电视机的使用。但没有了电视机，遥控板显然是无所作为。快捷方式也是一样，当快捷方式配合实际安装的程序时，非常便利。删除了快捷方式我们还可以通过“我的电脑”去找到目标程序，去运行它。而当程序被删除后，光有一个快捷方式就会毫无用处。自己桌面上的快捷方式复制到别人的计算机上，可能无法正常使用。

//#include "stdafx.h"#include <stdlib.h>#include <windows.h>typedef struct _LNKHEAD{DWORDdwID;DWORDdwGUID[4];DWORDdwFlags;DWORDdwFileAttributes;FILETIMEdwCreationTime;FILETIMEdwModificationTime;FILETIMEdwLastaccessTime;DWORDdwFileLen;DWORDdwIconNum;DWORDdwWinStyle;DWORDdwHotkey;DWORDdwReserved1;DWORDdwReserved2;}LNKHEAD, *PLNKHEAD;typedef struct _FILELOCATIONINFO{DWORDdwSize;DWORDdwFirstOffset;DWORDdwFlags;DWORDdwOffsetOfVolume;DWORDdwOffsetOfBasePath;DWORDdwOffsetOfNetworkVolume;DWORDdwOffsetOfRemainingPath;}FILELOCATIONINFO, *PFILELOCATIONINFO;typedef struct _LOCALVOLUMETAB{DWORDdwSize;DWORDdwTypeOfVolume;DWORDdwVolumeSerialNumber;DWORDdwOffsetOfVolumeName;charstrVolumeName[0];}LOCALVOLUMETAB, *PLOCALVOLUMETAB;typedef struct _NETWORKVOLUMETAB{DWORDdwSize;DWORDdwUnknown1;DWORDdwOffsetOfNetShareName;DWORDdwUnknown2;DWORDdwUnknown3;charstrNetShareName[0];}NETWORKVOLUMETAB, *PNETWORKVOLUMETAB;#define LNK_HASIDLIST0x1#define LNK_FILEDIR0x2#define LNK_HASDES0x4#define LNK_HASPATH0x8#define LNK_HASWORKDIR0x10#define LNK_HASCMD0x20#define LNK_LOCALVOLUME0x1#define LNK_NETSHARE0x2void AnalyseShortCut(const char *pFileName){FILE*file;unsigned shortusLenTemp;intiSize;LNKHEADhead;FILELOCATIONINFOfileLocationInfo;charszDescription[1024]; //快捷方式所指向的文件描述charszFilePath[1024];    //快捷方式所指向的文件charszCommand[1024];WCHARwszTemp[512];char*pDest;DWORDdwFlags;intp;if((file = fopen(pFileName, "rb")) == NULL)    {return;    }// headiSize = sizeof(LNKHEAD);if (fread(&head, 1, iSize, file) != iSize)    {goto errorExit;    }dwFlags = head.dwFlags;if(dwFlags & LNK_HASIDLIST){// The Shell Item Id Listif(fread(&usLenTemp, 2, 1, file) != 1){goto errorExit;}//fread(&szCommand, usLenTemp, 1, file);fseek(file, usLenTemp, SEEK_CUR);}p = ftell(file);// file location infoif(fread(&fileLocationInfo, sizeof(fileLocationInfo), 1, file) != 1){goto errorExit;}//fread(&szCommand, fileLocationInfo.dwSize - sizeof(fileLocationInfo), 1, file);fseek(file, fileLocationInfo.dwOffsetOfBasePath +  p, SEEK_SET);if(fileLocationInfo.dwFlags & LNK_NETSHARE){iSize = fileLocationInfo.dwOffsetOfNetworkVolume - fileLocationInfo.dwOffsetOfBasePath;}else{iSize = fileLocationInfo.dwOffsetOfRemainingPath - fileLocationInfo.dwOffsetOfBasePath;}if(fread(&szCommand, 1, iSize, file) != iSize){goto errorExit;}pDest = strupr(szCommand);if(NULL == strstr(pDest, ".EXE")){goto errorExit;}sprintf(szFilePath, "\"%s\"", szCommand);fseek(file, fileLocationInfo.dwSize +  p, SEEK_SET);if(dwFlags & LNK_HASDES){// skip Description stringif(fread(&usLenTemp, 2, 1, file) != 1){goto errorExit;}if(fread(&wszTemp, sizeof(WCHAR), usLenTemp, file) != usLenTemp){goto errorExit;}wszTemp[usLenTemp] = '\0';WideCharToMultiByte( CP_ACP, 0, wszTemp, -1,szDescription, 512, NULL, NULL );//fseek(file, usLenTemp*2, SEEK_CUR);}if(dwFlags & LNK_HASPATH){// skip Relative pathif(fread(&usLenTemp, 2, 1, file) != 1){goto errorExit;}if(fread(&wszTemp, sizeof(WCHAR), usLenTemp, file) != usLenTemp){goto errorExit;}wszTemp[usLenTemp] = '\0';WideCharToMultiByte( CP_ACP, 0, wszTemp, -1,szCommand, 512, NULL, NULL );//fseek(file, usLenTemp*2, SEEK_CUR);}if(dwFlags & LNK_HASWORKDIR){// skip Working directoryif(fread(&usLenTemp, 2, 1, file) != 1){goto errorExit;}if(fread(&wszTemp, sizeof(WCHAR), usLenTemp, file) != usLenTemp){goto errorExit;}wszTemp[usLenTemp] = '\0';WideCharToMultiByte( CP_ACP, 0, wszTemp, -1,szCommand, 512, NULL, NULL );//fseek(file, usLenTemp*2, SEEK_CUR);}if(dwFlags & LNK_HASCMD){// Command line argumentsif(fread(&usLenTemp, 2, 1, file) != 1){goto errorExit;}if(fread(&wszTemp, sizeof(WCHAR), usLenTemp, file) != usLenTemp){goto errorExit;}wszTemp[usLenTemp] = '\0';WideCharToMultiByte( CP_ACP, 0, wszTemp, -1,szCommand, 512, NULL, NULL );strcat(szFilePath, " ");strcat(szFilePath, szCommand);}_splitpath(pFileName,NULL,NULL,szDescription,NULL);errorExit:fclose(file);}int main(int argc, char* argv[]){AnalyseShortCut("C:\\Documents and Settings\\Administrator\\Desktop\\Windows Media Player.lnk");printf("Hello World!\n");return 0;}