static void SimpleOCRCalculator(string filePath)
{
RasterCodecs codecs = new RasterCodecs();
RasterImage image = codecs.Load(filePath);
string[] calculations;
using (IOcrEngine engine = OcrEngineManager.CreateEngine(OcrEngineType.Advantage, false))
{
engine.Startup(null, null, null, null);
IOcrPage page = engine.CreatePage(image, OcrImageSharingMode.None);
page.AutoZone(null);
page.Recognize(null);
calculations = new string[page.Zones.Count];
for (int i = 0; i < page.Zones.Count; i++)
{
calculations[i] = page.GetText(i);
}
engine.Shutdown();
}
Dictionary<string, Action<double, double>> operands = new Dictionary<string, Action<double, double>>();
operands.Add("+", new Action<double, double>(delegate(double a, double b) { double ans = a + b; Console.WriteLine("{0} + {1} = {2}", a, b, ans); }));
operands.Add("-", new Action<double, double>(delegate(double a, double b) { double ans = a - b; Console.WriteLine("{0} - {1} = {2}", a, b, ans); }));
operands.Add("x", new Action<double, double>(delegate(double a, double b) { double ans = a * b; Console.WriteLine("{0} * {1} = {2}", a, b, ans); }));
operands.Add("/", new Action<double, double>(delegate(double a, double b) { double ans = a / b; Console.WriteLine("{0} / {1} = {2}", a, b, ans); }));
for (int i = 0; i < calculations.Length; i++)
{
string equation = Regex.Replace(calculations[i], @"\n|\r| ", "");
string[] ops = new string[] { "+", "-", "x", "/" };
for (int j = 0; j < ops.Length; j++)
{
int index = equation.IndexOf(ops[j]);
if (index > 0 && index < equation.Length)
{
string op1 = equation.Substring(0, index);
string op2 = equation.Substring(index + 1);
double arg1 = double.Parse(op1);
double arg2 = double.Parse(op2);
operands[ops[j]](arg1, arg2);
break;
}
}
}
codecs.Dispose();
image.Dispose();
}
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| C#: Smtp mailer = new Smtp(); mailer.AddAttachment(@"C:\My Documents\Report.xls"); |
| VB.NET: Dim mailer As New Smtp() mailer.AddAttachment("C:\My Documents\Report.xls") |
| C#: mailer.Message.Attachments.Add(@"C:\DataFiles\B4DVIS9H.TMP", "Annual report.doc"); |
| VB.NET: mailer.Message.Attachments.Add("C:\DataFiles\B4DVIS9H.TMP", "Annual report.doc") |
任意代码保护 - 防止非图像支持的执行代码和代码页修改（例如VirtualAlloc / VirtualProtect创建/修改的代码） 阻止低完整性图像 阻止远程图像 阻止不受信任的字体 代码完整性守护者 禁用Win32k系统调用 不允许子进程 导出地址过滤 - 将功能修补到另一个功能的一个常见方法中的一个步骤 导入地址过滤 - 将功能修补到另一个功能的一个常见方法中的一个步骤 模拟执行 验证API调用（CallerCheck） 验证图像依赖完整性 验证堆栈完整性
xperf - “PROC_THREAD + LOADER”-f“wdeg_klogger.etl” xperf -start“WDEG” - “Microsoft-Windows-Security-Mitigations：0xFFFFFFFFFFFFFF：0xFF：'stack'”-f“wdeg_unmerged.etl”
xperf -stop -stop“WDEG”-d“wdeg_merged.etl”
#include #include using namespace std;void* CreateCodeInVirtualMemory(BOOL writable)
{ BYTE code[3] = { 0x33, 0xc0, 0xc3 }; LPVOID result = VirtualAlloc(NULL, sizeof(code), MEM_COMMIT | MEM_RESERVE, writable ? PAGE_EXECUTE_READWRITE : PAGE_READWRITE); if (result)
{
memcpy(result, code, sizeof(code));
} else cout << "VirtualAllocEx failed with error " << GetLastError() << endl; return result;
}void CreateCodeInVirtualMemoryAndExecute(BOOL useWritableMemory)
{ LPTHREAD_START_ROUTINE addr = (LPTHREAD_START_ROUTINE)CreateCodeInVirtualMemory(useWritableMemory); if (addr)
{ DWORD result = addr(NULL);
cout << "Code at 0x" << hex << (void*)addr << " returned " << result << endl;
} else cout << "NULL address was not executed" << endl;
}void ExecuteIllegalMemory()
{
CreateCodeInVirtualMemoryAndExecute(FALSE);
}
void PrintOptions()
{
cout << "Enter one of the following options:" << endl;
cout << "1 - Execute Memory Not Marked As Executable" << endl;
cout << "2 - Create Code in Virtual Memory" << endl;
cout << "3 - Create Code in Virtual Memory and Execute" << endl;
cout << "0 - Exit" << endl;
}void DecisionLoop()
{ while (true)
{ int selection;
PrintOptions();
cin >> selection; switch (selection)
{ case 0: return; case 1:
ExecuteIllegalMemory(); break; case 2:
CreateCodeInVirtualMemory(TRUE); break; case 3:
CreateCodeInVirtualMemoryAndExecute(TRUE); break; default:
cout << "Invalid input" << endl;
}
}
}int main()
{
DecisionLoop(); return 0;
}
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