[HyDrAtIc]

Both of you are wrong,you should put the dialog id not the dialog name!

Код:

public OnPlayerConnect(playerid)
{
	if(fexist(UserSavePath(playerid)))
	{
	    new string[128], string2[128];
		format(string, sizeof(string), ""GM_NAME" Login: (%s)", GetPlayerNameEx(playerid));
		format(string, sizeof(string), "%s, we have found your account registered in the database!\nPlease login to continue.", GetPlayerNameEx(playerid));
		ShowPlayerDialog(playerid, DIALOG_LOGIN, DIALOG_STYLE_INPUT, string, string2, "Login", "Close");
	}
	else
	{
 		new string[128], string2[128];
		format(string, sizeof(string), ""GM_NAME" Registration: (%s)", GetPlayerNameEx(playerid));
		format(string, sizeof(string), "%s, we cannot find this name registered in the database!\nPlease enter a password to register.", GetPlayerNameEx(playerid));
		ShowPlayerDialog(playerid, DIALOG_LOGIN, DIALOG_STYLE_INPUT, string, string2, "Register", "Close");
	}
	gPlayerLogged[playerid] = 0;
	return 1;
}

In:

Код:

ShowPlayerDialog(playerid, DIALOG_LOGIN, DIALOG_STYLE_INPUT, string, string2, "Register", "Close");

Remove DIALOG_LOGIN and replace it with the DIALOG_LOGIN id that you defined in top of your script.

Example:

Код:

#define DIALOG_LOGIN 3

So your code should be like this:

Код:

public OnPlayerConnect(playerid)
{
	if(fexist(UserSavePath(playerid)))
	{
	    new string[128], string2[128];
		format(string, sizeof(string), ""GM_NAME" Login: (%s)", GetPlayerNameEx(playerid));
		format(string, sizeof(string), "%s, we have found your account registered in the database!\nPlease login to continue.", GetPlayerNameEx(playerid));
		ShowPlayerDialog(playerid, DIALOG_LOGIN, DIALOG_STYLE_INPUT, string, string2, "Login", "Close");
	}
	else
	{
 		new string[128], string2[128];
		format(string, sizeof(string), ""GM_NAME" Registration: (%s)", GetPlayerNameEx(playerid));
		format(string, sizeof(string), "%s, we cannot find this name registered in the database!\nPlease enter a password to register.", GetPlayerNameEx(playerid));
		ShowPlayerDialog(playerid, dialogid, DIALOG_STYLE_INPUT, string, string2, "Register", "Close");
	}
	gPlayerLogged[playerid] = 0;
	return 1;
}