Update tcptop example project for VS 2015

Examples/MakeAll.sln

@@ -21,6 +21,8 @@ Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "pktdump_ex", "pktdump_ex\pk
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "smp_1", "smp_1\smp_1.vcxproj", "{21F49E7F-6C58-4DA5-ABE5-A9DFB6165C83}"
 EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "tcptop", "tcptop\tcptop.vcxproj", "{B671D5DF-3A80-4A21-BC01-79E3FB73D372}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|x64 = Debug|x64
@@ -101,6 +103,14 @@ Global
 		{21F49E7F-6C58-4DA5-ABE5-A9DFB6165C83}.Release|x64.Build.0 = Release|x64
 		{21F49E7F-6C58-4DA5-ABE5-A9DFB6165C83}.Release|x86.ActiveCfg = Release|Win32
 		{21F49E7F-6C58-4DA5-ABE5-A9DFB6165C83}.Release|x86.Build.0 = Release|Win32
+		{B671D5DF-3A80-4A21-BC01-79E3FB73D372}.Debug|x64.ActiveCfg = Debug|x64
+		{B671D5DF-3A80-4A21-BC01-79E3FB73D372}.Debug|x64.Build.0 = Debug|x64
+		{B671D5DF-3A80-4A21-BC01-79E3FB73D372}.Debug|x86.ActiveCfg = Debug|Win32
+		{B671D5DF-3A80-4A21-BC01-79E3FB73D372}.Debug|x86.Build.0 = Debug|Win32
+		{B671D5DF-3A80-4A21-BC01-79E3FB73D372}.Release|x64.ActiveCfg = Release|x64
+		{B671D5DF-3A80-4A21-BC01-79E3FB73D372}.Release|x64.Build.0 = Release|x64
+		{B671D5DF-3A80-4A21-BC01-79E3FB73D372}.Release|x86.ActiveCfg = Release|Win32
+		{B671D5DF-3A80-4A21-BC01-79E3FB73D372}.Release|x86.Build.0 = Release|Win32
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

Examples/tcptop/tcptop.c

@@ -36,6 +36,24 @@
 
 #include <pcap.h>
 
+#include <tchar.h>
+BOOL LoadNpcapDlls()
+{
+    _TCHAR npcap_dir[512];
+    UINT len;
+    len = GetSystemDirectory(npcap_dir, 480);
+    if (!len) {
+        fprintf(stderr, "Error in GetSystemDirectory: %x", GetLastError());
+        return FALSE;
+    }
+    _tcscat_s(npcap_dir, 512, _T("\\Npcap"));
+    if (SetDllDirectory(npcap_dir) == 0) {
+        fprintf(stderr, "Error in SetDllDirectory: %x", GetLastError());
+        return FALSE;
+    }
+    return TRUE;
+}
+
 void usage();
 
 void dispatcher_handler(u_char *, const struct pcap_pkthdr *, const u_char *);
@@ -49,6 +67,13 @@ struct timeval st_ts;
 u_int netmask;
 struct bpf_program fcode;
 
+    /* Load Npcap and its functions. */
+    if (!LoadNpcapDlls())
+    {
+        fprintf(stderr, "Couldn't load Npcap\n");
+        exit(1);
+    }
+
 	/* Check the validity of the command line */
 	if (argc != 2)
 	{
@@ -155,4 +180,4 @@ void usage()
 	printf("\t You can use \"WinDump -D\" if you don't know the name of your adapters.\n");
 
 	exit(0);
-}
+}