#include <stdio.h>

void strupper(char *s)
{
    while(*s!='\0'){
        *s-=('a'-'A');
        s++;
    }
}

int main()
{
    char *str="abcdefg";
    strupper(str);
    printf("%s\n",str);
    return 0;
}

#include <stdio.h>

int main(void)
{
          int i;               // roop用
    char buff[256];      // buffer
    int a[10];           // ファイルの値格納先
    unsigned char b[10]; // ファイルの値格納先
    FILE *fp;

    fp = fopen("t.txt", "r");
    for(i = 0; i < 10; i++){
        fgets(buff, 256, fp);
        sscanf(buff, "%d", &b[i]);
        printf("%d\n", b[i]); //
    }
    fclose(fp);//　値格納先がunsigned char型の場合、ここでエラー
    return 0;
} 

    
            hRtLib = LoadLibrary(_T("RICHED32.DLL"));
　　　　　　　　　　　　　　_tsetlocale(LC_ALL,_T("japanese"));            hlistbox1 = CreateWindow(_T("LISTBOX"),NULL,WS_CHILD|WS_VISIBLE|LBS_STANDARD|WS_HSCROLL,
                            0,75,200,420,hWnd,(HMENU)LISTBOX_1,
                            ((LPCREATESTRUCT)(lp))->hInstance,NULL);
            SetWindowLong(hWnd,0,HandleToLong(hlistbox1));
            editbox1=CreateWindow(_T("RICHEDIT"),NULL,WS_CHILD|WS_VISIBLE| WS_BORDER | WS_HSCROLL,
                            0,0,200,45,hWnd,(HMENU)EDIT_1,
                            ((LPCREATESTRUCT)(lp))->hInstance,NULL);
                          .
                          .
                          .
                       case WM_COMMAND:
            switch(LOWORD(wp))
                           {
            case EDIT_1:
                    //文字列を検索する
                    TCHAR edittext1[MAX_STR];
                    GetWindowText(editbox1,edittext1,MAX_STR);
                    SendMessage(hlistbox1,LB_SELECTSTRING,-1,(LPARAM)edittext1);
                          .
                          .
                          .