#include <windows.h>

Function:

MessageBox (0, "dialog box Contents", "dialog box title", 0);

The first parameter is set to 0, the first parameter is the number of the dependent window, the equivalent of who pops up the window,0 for the system pop-up, the second parameter is the contents of the dialog box, the third parameter is the title of the dialog box, the fourth parameter is a dialog box type, set to 0

ShellExecute (0, "open", "www.qq.com", 0, 0, 1);

The first parameter, indicating that the window executes, 0 is the system execution, the second parameter is what to do,

In general, only "open", "print", the third parameter is the path of the execution of the file or name or URL, or e-mail address, the third parameter is replaced with the path of the file, and note \ 1 slash replaced by a \\2 slash

Fourth, fifth, are some of the system reserved parameters, are set to 0,

The last parameter is to control the opening of the window display, hide, maximize, minimize, this generally does not play any role, sometimes control maximization, minimize, hide, display and so on.

#include <windows.h>