Пример #1
0
        public static SafeDC CreateDC(string deviceName)
        {
            SafeDC dc = null;

            try
            {
                // Should this really be on the driver parameter?
                dc = NativeMethods.CreateDC(deviceName, null, IntPtr.Zero, IntPtr.Zero);
            }
            finally
            {
                if (dc != null)
                {
                    dc._created = true;
                }
            }

            if (dc.IsInvalid)
            {
                dc.Dispose();
                throw new SystemException("Unable to create a device context from the specified device information.");
            }

            return(dc);
        }
Пример #2
0
 public static Standard.SafeDC CreateDC(string deviceName)
 {
     Standard.SafeDC edc = null;
     try
     {
         edc = NativeMethods.CreateDC(deviceName, null, IntPtr.Zero, IntPtr.Zero);
     }
     finally
     {
         if (edc != null)
         {
             edc._created = true;
         }
     }
     if (edc.IsInvalid)
     {
         edc.Dispose();
         throw new SystemException("Unable to create a device context from the specified device information.");
     }
     return(edc);
 }