----------------------------------------------------------------------------------------------------------------------------------------------------
Program Listing for:  dllt2.cpp
Project:  printdll
Namespace:  c++
----------------------------------------------------------------------------------------------------------------------------------------------------
#include <windows.h> #include <winspool.h> #include <string.h> #include <stdio.h> #include <mapi.h> extern "C" __declspec(dllexport) char *SetDefPrint(char *); extern "C" __declspec(dllexport) char *GetPrinters(void); extern "C" __declspec(dllexport) char *GetStringFromMemory( void) ; extern "C" __declspec(dllexport) int PutStringInMemory(char * str ) ; extern "C" __declspec(dllexport) int SendEmail( char *name, char *email, char *subject, char *text, char *from_email, char *from_name); char *buffer = NULL; // for email use SMTP:user@site.com extern "C" __declspec(dllexport) int SendEmail( char *name, char *email, char *subject, char *text, char *from_email, char *from_name) { LPMAPILOGON fn1; LPMAPISENDMAIL fn2; LPMAPILOGOFF fn3; int return_val = 1; MapiRecipDesc recipient[2] = {{ 0, MAPI_TO, name, email, 0, NULL }, { 0, MAPI_ORIG, from_name, from_email, 0, NULL } }; MapiMessage message = { 0, subject, text, NULL, NULL, NULL, 0, NULL, 2, &(recipient[0]), 0, NULL }; LHANDLE lhSession; HANDLE hMapiLib; hMapiLib = LoadLibrary("MAPI32.DLL"); if (hMapiLib == NULL) return -1; fn1 = (LPMAPILOGON)GetProcAddress(hMapiLib, "MAPILogon"); fn2 = (LPMAPISENDMAIL)GetProcAddress(hMapiLib, "MAPISendMail"); fn3 = (LPMAPILOGOFF)GetProcAddress(hMapiLib, "MAPILogoff"); if ( (*fn1)(0, NULL, NULL, 0, 0, &lhSession) != SUCCESS_SUCCESS ) { return_val = -2; } else { if ( (*fn2)(lhSession, 0, &message, 0, 0) != SUCCESS_SUCCESS ) return_val = -3; else if ( (*fn3)(lhSession, 0, 0, 0) != SUCCESS_SUCCESS ) return_val = -4; } FreeLibrary(hMapiLib); return (return_val); } extern "C" __declspec(dllexport) char *SetDefPrint(char *pcDefault) { PRINTER_INFO_5 printinf[10]; //DWORD number; DWORD x1; DWORD x2; unsigned int n; HANDLE phand; PRINTER_DEFAULTS pd; BOOL result; PRINTER_INFO_2 pi2[10]; DWORD nsize; DWORD received; char *ret; ret = "Failed"; EnumPrinters(PRINTER_ENUM_LOCAL, NULL, 5, (LPBYTE)printinf, 200, &x1, &x2 ); for (n=0;n<x2;n++) { //CString out = printinf[n].pPrinterName; //pDC->TextOut(5,5+ (n+1)*40, out, out.GetLength()); result = OpenPrinter( printinf[n].pPrinterName, &phand, &pd); if (result) { nsize = 10* sizeof(PRINTER_INFO_2); GetPrinter( phand, 2, (LPBYTE)( pi2), nsize, &received); if ( ! stricmp( pcDefault, printinf[n].pPrinterName ) ) { pi2[0].Attributes = PRINTER_ATTRIBUTE_DEFAULT ; SetPrinter( phand, 2, (LPBYTE)pi2 , 0); ret = "Default changed"; } //CString out2; //out2 = pi2[0].pPrinterName; //out2.Format("bytes received: %i", received ); //pDC->TextOut(5,5+ (n+1)*40 + 20, out2, out2.GetLength() ); } } return (ret); } extern "C" __declspec(dllexport) char *GetPrinters(void) { PRINTER_INFO_5 printinf[10]; //DWORD number; DWORD x1; DWORD x2; unsigned int n; char far *ret; ret = new char[500]; *ret = (char)0; EnumPrinters(PRINTER_ENUM_LOCAL, NULL, 5, (LPBYTE)printinf, 200, &x1, &x2 ); for (n=0;n<x2;n++) { if ( strlen(ret) + strlen(printinf[n].pPrinterName) > 500 ) break; if (n>0) strcat( ret, ";"); strcat( ret, printinf[n].pPrinterName ); } return (ret); } extern "C" __declspec(dllexport) int PutStringInMemory(char * str ) { HANDLE hmmf; LPSTR lpMsg; char buffer2[501]; hmmf = CreateFileMapping( (HANDLE) 0xFFFFFFFF, NULL, PAGE_READWRITE, 0, 0x1000, "MMFDEMO"); if (hmmf == NULL) { return -1; } lpMsg = (LPSTR)MapViewOfFile( hmmf, FILE_MAP_WRITE, 0, 0, 0); if (lpMsg == NULL ) { return -2; } if (strlen(str) > 500) { UnmapViewOfFile( lpMsg ); return -3; } sprintf( buffer2, "&%s", str ); strcpy(lpMsg, buffer2 ); UnmapViewOfFile( lpMsg ); return 0; } extern "C" __declspec(dllexport) char *GetStringFromMemory( void) { HANDLE hmmf; LPSTR lpMsg; LPSTR badstring = "no info available"; if (buffer != NULL) { free(buffer) ; } buffer = (char *)malloc(500); if (! buffer) { return "-3"; } hmmf = CreateFileMapping( (HANDLE) 0xFFFFFFFF, NULL, PAGE_READWRITE, 0, 0x1000, "MMFDEMO"); if (hmmf == NULL) { return "-1"; } lpMsg = (LPSTR)MapViewOfFile( hmmf, FILE_MAP_WRITE, 0, 0, 0); if (lpMsg == NULL ) { return "-2"; } if ( lpMsg[0] != '&' ) { UnmapViewOfFile( lpMsg ); return badstring; } strncpy( buffer, lpMsg,499); buffer[499] = '\0'; UnmapViewOfFile( lpMsg ); return buffer; }


Back to Portfolio