cfile.cpp

bt848,bt878 a采集卡的探测

#include "CFile.hpp"
#include "CString.hpp"

bool CFile::Open(LPTSTR File,Mode CMode,DWORD Beh)
{
	Close();
	WasCreatd = FALSE;
	SECURITY_ATTRIBUTES sa;
	sa.nLength=sizeof(sa);
	sa.lpSecurityDescriptor=NULL;
	sa.bInheritHandle=FALSE;
	BOOL Rt=((handle=CreateFile(
			File,								// pointer to name of the file 
			(CMode == RdOnly)?GENERIC_READ:GENERIC_READ|GENERIC_WRITE,			// access (read-write) mode 
			(CMode == RdOnly)
				?((CMode == Shared) ?FILE_SHARE_READ:0)
			:((CMode == Shared) ? FILE_SHARE_READ|FILE_SHARE_WRITE:0),	// share mode 
			&sa,								// pointer to security descriptor 
			Beh,								// how to create 
			FILE_ATTRIBUTE_NORMAL,				// file attributes 
			NULL								// handle to file with attributes to copy  
		   )) != INVALID_HANDLE_VALUE);
	if (Rt && Beh==OPEN_ALWAYS) {
		WasCreatd = (GetLastError()!=ERROR_ALREADY_EXISTS);
	}
	return (Rt==TRUE);
}

bool CFile::Close() 
{
	BOOL Rt=TRUE;
	if ( IsOpen() ) Rt = CloseHandle(handle);
	handle=INVALID_HANDLE_VALUE;
	return Rt==TRUE;
}

bool CFile::SetSize(DWORD Size) 
{
	if (Seek(Size,SEEK_SET)!=Size) return FALSE;
	return SetEndOfFile(handle)==TRUE; 
}

/***
* strnicmp
**************************************************************/
int lstrnicmp (LPTSTR s1x, LPTSTR s2x, int maxlen)
{
	LPTSTR s1;
	LPTSTR s2;
	s1=(LPTSTR)s1x;
	s2=(LPTSTR)s2x;
	while ( ( (unsigned char) toupper(*s1) == (unsigned char) toupper(*s2) ) && *s1 && *s2 && maxlen>1) {
		s1++;
		s2++;
		maxlen--;
	};
	return ((int) toupper(*s1)- (int) toupper(*s2));
}

// Wild matching function
bool Wild(LPTSTR pattern, LPTSTR string)
{
	int nlit=0;
	while (*pattern) {
		switch (*pattern) {
		case '*':
	        pattern++;
			if (*pattern == 0) {
				while (*string && *string!='.') string++;
				return ((*string) ? false : true);

			}
			nlit=0;
			while ((pattern[nlit] != 0) && (pattern[nlit] != '*') && (pattern[nlit] != '?') ) nlit++;
			while (1) {
				if (lstrnicmp(string,pattern, nlit) == 0) break;
				string++;
				if ( *string == 0) return false;
			}
			break;
		case '?':
	        if (*string == 0) return false;
			pattern++;
			string++;
			break;
		default:	
			if (toupper(*pattern) != toupper(*string)) return false;
			pattern++;
			string++;
			break;
		}
	}
	return ((*string) ? false : true);
}

CString GetWindowsDirectory()
{
	CString ret;
	ret.SetLen(MAX_PATH);
	ret.SetLen(::GetWindowsDirectory(ret.Ptr(),MAX_PATH));
	return ret;
}

CString GetTempDirectory()
{
	CString ret;
	ret.SetLen(MAX_PATH);
	ret.SetLen(::GetTempPath(MAX_PATH,ret.Ptr()));
	return ret;
}

// To Delete files
bool DeleteFile(CString& c)
{
	return ::DeleteFile(c.Ptr())==TRUE;
}