C / C++ / MFC

EnableWindow(GetDlgItem(hDlg, IDC_Button_Search), FALSE);

RajiRaghu wrote:

[...] again throws the same error..
Any other clues please!

RajiRaghu wrote:

How to call "GetDlgItem(IDC_Button_Search)->EnableWindow(FALSE);" inside a static method?

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

HWND hWnd = ::GetDlgItem( hWndDlg, IDC_Button_Search );
 
if( hWnd )
{
    ::EnableWindow( hWnd, FALSE );
}

Ali Tavakol wrote:

is this code safe?

Ali Tavakol wrote:

is this code safe?

Ali Tavakol wrote:

strcpy(f(), "All");

toxcct wrote:

what ??? you're trying to write "All" into a function ??

Ali Tavakol wrote:

char * f(void)
{
return "Hello";
}

//in main
char *s = f();

Ali Tavakol wrote:

strcpy(f(), "All");

Ali Tavakol wrote:

CString s = f();

Ali Tavakol wrote:

char *s = "All ";
strcat(s, f());

hfry wrote:

This is safe

<br />
char * f(void)<br />
{<br />
char *s;<br />
//assume that string s is given by the user<br />
return s;<br />
}<br />

const char* f(void)
{
  const char *s = "Hello";
  return s;
}

Ali Tavakol wrote:

char * f(void)
{
char *s;
//assume that string s is given by the user
return s;
}

char * f(void)
{
char *s;
//assume that string s is given by the user
char buffer[100];
getuserinput(buffer, 100);
s = buffer;
return s;
}

char * f(void)
{
    return "Hello";
}

char * f(void)
{
    static char t[] = "Hello";
    return t;
}

Cedric Moonen wrote:

Sorry, but it is not safe: sure, the pointer still 'points' at the same address but the contents of the strings are not protected anymore

Cedric Moonen wrote:

So, later in your program you may find garbage characters in your string and you don't know way. It is like using a string allocated with new after having deleted it.

char* f()
{
	char buffer[20] = {0};
	strcpy(buffer, "Hello");
	return buffer;
}