Hi guys!
After I managed to make the MP3 player, not I am stuck on scanning a list of FilePath/FileName from a database file and using it to play the music.
Scanning the directory and recording all files in a file database works correctly. But I can not read from this file for some reason. I will nead this for my encryption software after this, which will also scan a directory and encrypt everything in it. I also may need to skip non media files somehow.
Scan directory and record all file names with the path in FilesList.cfc.Code:/************************************** Plays most music/vide files **********************************************/ int iPlaySound () { // Local variables and initialization // // User input and initial warnings // //::MessageBox (hwnd, "The codecs must be installed.\n" , "Information:", MB_OK); /* MB_OK == Message box with button "OK" only. */ //iTemporaryVariable1 = GetWindowText (hHandle1, &caTemporaryVariable8 [0], 1024); // hHandle processes the input from the EDIT text box. Save from element 0 of the global variable "caTemporaryVariable10" to maximum 1024. // Add " gear" before updating th STATIC text box down with the value from the EDIT text box up. //strcpy (caTemporaryVariable8, cpMediafileName); //AddDashToPath (cpMediafileName, iInputFromUser); // Replace \ with \\ for the file path. Unnecessary, since its already done in // the iScanDir () function. char *cpErrorText = "DEBUG: Can not open the file in iPlaySound ()."; FILE *fpFilePointer; char *cpFileOpenMode = "r"; char caFilePathName [4096] = "FilesList.cfc"; char cpMediafileName [4096]; fpFilePointer = fopen (caFilePathName, cpFileOpenMode); if (fpFilePointer == NULL) { printf (cpErrorText); SendMessage (hHandle200, WM_SETTEXT, 200, (LPARAM)cpErrorText); // Updates a CreateWindow("Static"... or CreateWindow("EDIT" textbox. If we replace argument 1 with hwnd, it will update the title bar. } while (fscanf(fpFilePointer, "%s", cpMediafileName) == 2) // Until we reach the end of the file, record every row in cpMediafileName. { printf ("DEBUG: Play sound."); SendMessage (hHandle200, WM_SETTEXT, 200, (LPARAM)"Play"); // Updates a CreateWindow("Static"... or CreateWindow("EDIT" textbox. If we replace argument 1 with hwnd, it will update the title bar. sprintf (caTemporaryVariable9, "open \"%s\" type mpegvideo alias mp3", cpMediafileName); //::MessageBox (hwnd, caTemporaryVariable9, "DEBUG:", MB_OK); /* MB_OK == Message box with button "OK" only. */ printf ("%s", caTemporaryVariable9); // Processing // mciSendString("close mp3", NULL, 0, NULL);// The close for the media file is at the beginning in order to close the old media file after a new has been loaded and allow the other toolbox functions. mciSendString(caTemporaryVariable9, NULL, 0, NULL); //mciSendString("play mp3 from 0 wait", NULL, 0, NULL); //mciSendString("play mp3 from 0", NULL, 0, NULL); mciSendString("play mp3", NULL, 0, NULL); } fclose (fpFilePointer); // All files must be closed. return 0; // Status code for everything is OK. }
Code:/**************** Write to file *************************/ int iWriteToFile (char caText [4096], char caFileName [4096], char *cpFileOpenMode) // A file name and path with a maximum of 4096 characters. { // Local variables and initialization FILE *fpFilePointer; // A pointer to data of type FILE in order to process the file. char *cpErrorMessage = "Error:\n The file can not be opened!\nPossible reasons:\n Wrong permissions.\n The file path is not correct.\n The file name is not correct.\n Other\n."; fpFilePointer = fopen(caFileName, cpFileOpenMode); // Open the file cpFileName in mode cpFileOpenMode. // Generic error handling if (fpFilePointer == NULL) // fopen will return NULL if it can not open the file. { printf (cpErrorMessage); SendMessage (hHandle200, WM_SETTEXT, 200, (LPARAM)cpErrorMessage); // Updates a CreateWindow("Static"... or CreateWindow("EDIT" textbox. If we replace argument 1 with hwnd, it will update the title bar. return -1; // Error code for can not open the file. } else { fputs (caText, fpFilePointer); return 0; } // Finishing the function fclose (fpFilePointer); // All files must be closed. } /**************** Scan for all the files in a directory *************************/ int iScanDir (char caDirectoryPath [4096], char *cpWriteMode) { // Local variables and initialization char *cpErrorText = "ERROR:\n Could not open the current directory.\n"; char *cpFileNameInDirectory; // The file name scanned from the directory. char cpFileNamePathInDirectory [4096]; // The file name scanned from the directory with the path added. Must be an // or the program will close unexpectedly and the compiler will give an // maybe uninitialized error. char *cpFileNameToWriteTo = "FilesList.cfc"; // The file in which to write the list of file names from the directory. struct dirent *de; // Pointer for directory entry. AddDashToPath(caDirectoryPath, iInputFromUser);// The user input is in format C:\Path\File, for C it should be C:\\Path\\File // or C:/Path/File. DIR *dr = opendir(caDirectoryPath); // Example for opening program directory: DIR *dr = opendir("."); if (dr == NULL) // opendir returns NULL if couldn't open directory. NULL is not null. { printf(cpErrorText); // C version. SendMessage (hHandle200, WM_SETTEXT, 200, (LPARAM)cpErrorText);// Updates a CreateWindow("Static"... or CreateWindow("EDIT" textbox. If we replace argument 1 with hwnd, it will update the title bar. return -2; // Error code for can not open the directory. } /************* !!!!!!!!! The file must be erased before the new directory is scanned. ************/ iWriteToFile("", cpFileNameToWriteTo, "w"); // Erases the file by opening it in write mode an writing nothing. // The file is closed in the function iWriteToFile. // Refer http://pubs.opengroup.org/onlinepubs/7990989775/xsh/readdir.html // for readdir() while ((de = readdir(dr)) != NULL) // While the directory is readable. { cpFileNameInDirectory = (de->d_name); // Record the next scanned file name in cpFileNameInDirectory. strcpy (cpFileNamePathInDirectory, caDirectoryPath);// Add the path: empty character pointer, path. strcat (cpFileNamePathInDirectory, "/");// Add the directory path to the file name in the directory. strcat (cpFileNamePathInDirectory, cpFileNameInDirectory);// Add the directory path to the file name in the directory. // Directory path already in, file name. strcat (cpFileNamePathInDirectory, "\n"); // Spearate all file names from the directory in rows. //strcat (cpFileNamePathInDirectory, '\0'); // Only for debugging. //printf("DEBUG %s\n", de->d_name); // Print the name of the next file in the directory. iWriteToFile(cpFileNamePathInDirectory, cpFileNameToWriteTo, cpWriteMode);// Write the: file name scanned in the directory, // into cpFileNameToWriteTo, mode for writing is append. //SendMessage (hHandle200, WM_SETTEXT, 200, (LPARAM)de->d_name); //iPlaySound (de->d_name); } closedir(dr); return 0; } /****************** Add \ to the file path, making it \\ or / *************************/ int AddDashToPath (char *cpInputfilename, int iFileOrInput)// Adds / to the file path, making it / and usable in programs, instead of the \. { unsigned int i = 0; // Counter. char c; // Used for character reading. FILE *ifp; // pointer to type file. char *InMode = "r"; // Pointer to the mode for processing the file. if (iFileOrInput == 99) // We will replace the dash in an input from the user, not from a file. { for (i = 0; cpInputfilename [i] != '\0'; i++) // Until the end of the user input in *cpInputfilename. if (cpInputfilename [i] == '\\') // If we find a single dash, replace it with /. cpInputfilename [i] = '/'; // Instead of / we can use \\. } else { // We will replace the dash on a file path in a file, not a user input. ifp = fopen(cpInputfilename, InMode); if (ifp == NULL) { return -1; } else { for (i = 0; (c = fgetc(ifp)) != EOF; i++) if (c == '\\') cpInputfilename [i] = '/'; } } return 0; // Code for all is ok. }
