文件读写、剪贴板读写

/*#include <stdio.h>#include <stdlib.h>#ifndef SAFE_FREE#define SAFE_FREE(p) if(p) { free(p); p = NULL; }#endif#ifdef __cplusplusextern "C" {#endifint GetFileSize(const char* szFileName, unsigned long* pulFileSize);int ReadDataFromFile(const char* szFileName, unsigned char* pbData, unsigned long ulDataSize);char* ReadAllDataFromFile(const char* szFileName);char* ReadAllDataFromFileEx(const char* szFileName, int flag_sz);int WriteDataToFile(const char* szFileName, const unsigned char* pbData, unsigned long ulDataSize);#ifdef __cplusplus}#endif*///------------------------------------------------------------------------// GetFileSize() // - 获取文件的长度// szFileName - 文件名// pulFileSize - 返回的文件的长度（单位：字节）//------------------------------------------------------------------------int GetFileSize(const char* szFileName, unsigned long* pulFileSize){FILE *fp = fopen(szFileName, "rb");if ( fp ){fseek(fp, 0, SEEK_END);*pulFileSize = ftell(fp);fclose(fp);return 0;}return -1;}//------------------------------------------------------------------------// ReadDataFromFile() // - 获取文件中指定长度的数据内容// szFileName - 文件名// pbData - 返回的数据内容// ulDataSize - 数据的长度（单位：字节）//------------------------------------------------------------------------int ReadDataFromFile(const char* szFileName, unsigned char* pbData, unsigned long ulDataSize){unsigned long ulReadedSize = 0;FILE *fp = fopen(szFileName, "rb");if ( fp ){ulReadedSize = (unsigned long)fread(pbData, 1, ulDataSize, fp);fclose(fp);return ( ulReadedSize == ulDataSize ) ? 0 : -1;}return -1;}//------------------------------------------------------------------------// ReadAllDataFromFile() // - 获取文件中所有内容// szFileName - 文件名//------------------------------------------------------------------------char* ReadAllDataFromFile(const char* szFileName){unsigned long ulFileSize = 0;if ( 0 == GetFileSize(szFileName, &ulFileSize) ){char* pbBuffer = (char*)malloc(ulFileSize);if ( 0 == ReadDataFromFile(szFileName, (unsigned char*)pbBuffer, ulFileSize) ){return pbBuffer;}else{free(pbBuffer);return NULL;}}return NULL;}#define FLAG_SZ_END_WITH_ZERO 1#define FLAG_SZ_END_WITHOUT_ZERO 0//------------------------------------------------------------------------// ReadAllDataFromFileEx() // - 获取文件中所有内容，并且可选择是否以'/0'结尾// szFileName - 文件名// flag_sz - 是否以'/0'结尾。0：否；1：是//------------------------------------------------------------------------char* ReadAllDataFromFileEx(const char* szFileName, int flag_sz){unsigned long ulFileSize = 0;if ( 0 == GetFileSize(szFileName, &ulFileSize) ){char* pbBuffer = NULL;if ( 1 == flag_sz ){pbBuffer = (char*)malloc(ulFileSize+1);}else{pbBuffer = (char*)malloc(ulFileSize);}if ( 0 == ReadDataFromFile(szFileName, (unsigned char*)pbBuffer, ulFileSize) ){if ( 1 == flag_sz ){pbBuffer[ulFileSize] = '/0';}return pbBuffer;}else{free(pbBuffer);return NULL;}}return NULL;}//------------------------------------------------------------------------// WriteDataToFile() // - 保存数据到文件// szFileName - 文件名// pbData - 要保存的数据// ulDataSize - 数据的长度（单位：字节）//------------------------------------------------------------------------int WriteDataToFile(const char* szFileName, const unsigned char* pbData, unsigned long ulDataSize){unsigned long ulWritedSize = 0;FILE *fp = fopen(szFileName, "wb");if ( fp ){ulWritedSize = (unsigned long)fwrite(pbData, 1, ulDataSize, fp);fclose(fp);return ( ulWritedSize == ulDataSize ) ? 0 : -1;}return -1;}

 

//------------------------------------------------------------------------// PutTextToClipbrd() // - 放入文本内容到剪贴板// strText - 文本内容//------------------------------------------------------------------------HRESULT PutTextToClipbrd(CString strText){HGLOBAL hGlobal=NULL;char *szBuf=NULL;if( OpenClipboard(NULL) ){EmptyClipboard();hGlobal = GlobalAlloc(GHND, strText.GetLength()+1);szBuf = (char*)GlobalLock(hGlobal);strcpy(szBuf, LPCSTR(strText));GlobalUnlock(hGlobal);SetClipboardData(CF_TEXT, hGlobal);CloseClipboard();return S_OK;}return E_FAIL;}//------------------------------------------------------------------------// GetTextFromClipbrd() // - 获取剪贴板中的文本// strText - 返回的文本内容//------------------------------------------------------------------------HRESULT GetTextFromClipbrd(CString& strText){if ( OpenClipboard(NULL) ){HANDLE hData = GetClipboardData(CF_TEXT);char* szBuf = (char*)GlobalLock(hData);strText = szBuf;GlobalUnlock(hData);CloseClipboard();return S_OK;}return E_FAIL;}