Create date_format.c

datetime/date_format.c

@@ -0,0 +1,47 @@
+#include <windows.h>
+#include <wchar.h>
+
+int wmain(void) {
+
+    PDWORD cChars = NULL;
+    HANDLE std = GetStdHandle(STD_OUTPUT_HANDLE);   
+    
+    if (std == INVALID_HANDLE_VALUE) {
+        wprintf(L"Cannot retrieve standard output handle %d\n", 
+            GetLastError());
+        return 1;
+    }
+ 
+    SYSTEMTIME lt = {0};
+    GetLocalTime(&lt);
+     
+    wchar_t buf[128] = {0};
+     
+    int r = GetDateFormatEx(LOCALE_NAME_USER_DEFAULT, DATE_LONGDATE, 
+                &lt, NULL, buf, sizeof(buf)/sizeof(buf[0]), NULL);
+
+    if (r == 0) {
+    
+        wprintf(L"GetDateFormatEx function failed %d\n", 
+            GetLastError());
+            
+        CloseHandle(std);
+        
+        return 1;
+    }
+
+    WriteConsoleW(std, buf, wcslen(buf), cChars, NULL);
+    
+    r = CloseHandle(std);
+
+    if (r == 0) {
+    
+        wprintf(L"Cannot close console handle %d\n", 
+            GetLastError());
+        return 1;    
+    }
+    
+    CloseHandle(std);
+
+    return 0;
+}