MFC Supplements

Sometimes people want to write a small tool to use, so use them again MFC, after all, to be a very simple interface, we intend to long-term record some small problems encountered and solutions.

1 mfc select a file button to increase the response:

BOOL isOpen = TRUE; // if open (otherwise save)
   CString defaultDir; // = L "E: \\ FileTest"; // default file path open
   CString fileName = L ""; // open the default file name
   CString filter = L "file (* .txt) | * .txt || "; // file type misplaced

   // Construct a CFileDialog CFileDialog object operations
   CFileDialog openFileDlg (isOpen, defaultDir, fileName , OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT, filter, NULL) ;

   //openFileDlg.GetOFN().lpstrInitialDir = L "E: \\ \\ test.txt FileTest";
   // the DoModal displays a dialog box allows the user to select
   INT_PTR openFileDlg.DoModal Result = ();
   CString filePath; / / the defaultDir + = "\\ test.txt";

   IF (Result == IDOK)
   {
       // return GetPathName selected the full path
       filePath = openFileDlg.GetPathName ();
   }

---------------------------------------------

2 unicode string to an integer CODED

long num = 0;

num = _ttoi (temp);

--------------------------------------

3 long integer into a string:

CString tmp;
tmp.Format(_T("%I64X"),number);　　

　　　　 tmp.Format(_T("%I64d"),number);

------------------------------------

4 Open file

CStdioFile file;
CFileException fileException;

if (!file.Open(filePath, CFile::typeText|CFile::modeReadWrite|CFile::shareExclusive,&fileException))

Read line by line

file.SeekToBegin();

while (file.ReadString(cstrLine))

{

}

// close the file
File.close ();

// -------------------------------------- ---------
// open the file parameter entry
// --------------------------------- --------------
CFile :: modeCreate
    --- If the file does not exist it is created, if the file exists then open the file and empty the contents of the file
CFile :: modeCreate | CFile :: CFile :: modeNoTruncate
    --- If the file does not exist is created, if the file exists then open the file and retain the contents of the file
CFile :: shareDenyNone
    --- allow other processes to read and write files
CFile :: shareDenyRead
    --- other processes are not allowed to file for reading
:: shareDenyWrite CFile
    --- do not allow other processes to write to the file
CFile :: shareExclusive
    --- open files in exclusive mode, do not allow other processes to read and write files

--------------------------------------
. 6 AfxMessageBox Response:

            if(IDYES == AfxMessageBox(tips,MB_YESNOCANCEL))
           {
               exit(0);
           }

Guess you like