C / C++ / MFC

// C
fopen()
CreateFile()
 
// MFC
CFile
 
// C++
ofstream

#include <stdio.h>
#include <stdlib.h>

int main()
{
    FILE *fp;
    long i;
    long fLen;
    long tmpValue;


    // try to open an existing file
    fp = fopen("test.dat", "r+b");
    // if failed, then create a file
    if (fp == NULL)
    {
        printf("File doesn't exist\n");
        printf("creating...\n");
        fp = fopen("test.dat", "w+b");
    }
    // if file opened/created ok continue
    if (fp)
        printf("File opened successfully.\n");
    // otherwise, nick-off
    else
        return -1;

    // write some binary data to the file
    for (i=0; i<100; i++)
        fwrite(&i, sizeof(i), 1, fp);

    // get length of file
    fseek(fp, 0, SEEK_END);
    fLen = ftell(fp);

    // return file pointer to beginning of file
    fseek(fp, 0, SEEK_SET);

    // loop through, reading 1 long at a time from the file and printing it's value
    for (i=0; i<fLen/sizeof(long); i++)
    {
        fread(&tmpValue, sizeof(long), 1, fp);
        printf("%4d", tmpValue);
    }

    fclose(fp);
    return 0;
}

susanne1 wrote:

Hi everybody, iam trying to prevent the user from resizing, maximizing and minimizing a FormView window by using : OnSize and OnSizing functions, but it did not work? can somebody help? Thansk in advance

susanne1 wrote:

Any idea why?