Exemplos de Marshall.SizeOf em C# (CSharp)

Exemplo n.º 1

    private void ReadSharedMem_Click(object sender, EventArgs e)
    {
        IntPtr ptr;

        try
        {
            ptr = Marshall.AllocHGlobal(Marshall.SizeOf(typeof(SYSTEM_OUTPUT)));
            int ret = getStatus(ptr);

            if (ret == 0)
            {
                output = (SYSTEM_OUTPUT)Marshal.PtrToStructure(ptr, typeof(SYSTEM_OUTPUT));
            }

            //do something with output

            label1.Text = ret;
        }
        catch (AccessViolationException ave)
        {
            label1.Text = ave.Message;
        }
        finally
        {
            Marshal.FreeHGlobal(ptr);              //make sure to free the memory
        }
    }