question about .h ,about the compiler

[Harlequin]

#include <iostream>
#include <conio.h>
#include <windows.h>

using namespace std;

int main()
{

SetConsoleTitle("Hello");
cout<<"Hello";
getch();
return 0;
}


i have understood this program very well...
What i dont understand is when i type
#include <windows>

i get an error message.....
why is .h necessary for windows header file and for conio file........but not for iostream................

[mcleano]

well <iostream.h> is the deprecated version of <iostream> so I assume that <windows.h> is just the original header that was created and has not beeng upgraded since.

[Bazzy]

the .h was removed from standard headers file names for compatibility, some compilers have both versions.

conio.h and windows.h are C headers. windows API has evolved in MFC but it isn't available for free

[greg022549]

You would be a lot cleaner by stating this: #include "windows.h" instead of <windows.h>

This will produce no errors.

[Bazzy]

Even if windows.h is not part of the C++ standards, the angle brackets should be OK as it is really likely that windows.h directory is included in the compiler's header directories