static void Main(string[] args)
{
bool isLoaded = false;
const string moduleName = "CppDynamicLinkLibrary";
// Check whether or not the module is loaded.
isLoaded = IsModuleLoaded(moduleName);
Console.WriteLine("Module \"{0}\" is {1}loaded", moduleName, isLoaded ? "" : "not ");
// Call the functions exported from the module.
{
string str = "HelloWorld";
int length;
length = NativeMethods.GetStringLength1(str);
Console.WriteLine("GetStringLength1(\"{0}\") => {1}", str, length);
length = NativeMethods.GetStringLength2(str);
Console.WriteLine("GetStringLength2(\"{0}\") => {1}", str, length);
}
// Call the callback functions exported from the module.
{
CompareCallback cmpFunc = new CompareCallback(CompareInts);
int max = NativeMethods.Max(2, 3, cmpFunc);
// Make sure the lifetime of the delegate instance covers the
// lifetime of the unmanaged code; otherwise, the delegate
// will not be available after it is garbage-collected, and
// you may get the Access Violation or Illegal Instruction
// error.
GC.KeepAlive(cmpFunc);
Console.WriteLine("Max(2, 3) => {0}", max);
}
// Use the class exported from the module.
{
CSimpleObjectWrapper obj = new CSimpleObjectWrapper();
obj.FloatProperty = 1.2F;
float fProp = obj.FloatProperty;
Console.WriteLine("Class: CSimpleObject::FloatProperty = {0:F2}", fProp);
}
// You cannot unload the C++ DLL CppDynamicLinkLibrary by calling
// GetModuleHandle and FreeLibrary.
// Check whether or not the module is loaded.
isLoaded = IsModuleLoaded(moduleName);
Console.WriteLine("Module \"{0}\" is {1}loaded", moduleName, isLoaded ? "" : "not ");
}
static void Main(string[] args)
{
bool isLoaded = false;
const string moduleName = "CppDynamicLinkLibrary";
// 检查模块是否被加载
isLoaded = IsModuleLoaded(moduleName);
Console.WriteLine("模块 \"{0}\" {1}被加载", moduleName, isLoaded ? "" : "没有");
// 从模块中调用被导出的函数
{
string str = "HelloWorld";
int length;
length = NativeMethods.GetStringLength1(str);
Console.WriteLine("GetStringLength1(\"{0}\") => {1}", str, length);
length = NativeMethods.GetStringLength2(str);
Console.WriteLine("GetStringLength2(\"{0}\") => {1}", str, length);
}
// 从模块中调用被导出的回调函数
{
CompareCallback cmpFunc = new CompareCallback(CompareInts);
int max = NativeMethods.Max(2, 3, cmpFunc);
// 确保该委托的实例的生命周期涵盖整个非托管代码
// 否则，该委托将无法使用，在垃圾回收后。
// 你可能会收到访问冲突或非法指令错误
GC.KeepAlive(cmpFunc);
Console.WriteLine("Max(2, 3) => {0}", max);
}
// 从模块中使用被导出类.
{
CSimpleObjectWrapper obj = new CSimpleObjectWrapper();
obj.FloatProperty = 1.2F;
float fProp = obj.FloatProperty;
Console.WriteLine("Class: CSimpleObject::FloatProperty = {0:F2}", fProp);
}
// 你不通过调用GetModuleHandle 和 FreeLibrary
// 能卸载C++ DLL CppDynamicLinkLibrary
// 检查模块是否被加载。
isLoaded = IsModuleLoaded(moduleName);
Console.WriteLine("模块 \"{0}\" {1}被加载", moduleName, isLoaded ? "" : "没有");
}
static void Main(string[] args)
{
bool isLoaded = false;
const string moduleName = "CppDynamicLinkLibrary";
// 检查模块是否被加载
isLoaded = IsModuleLoaded(moduleName);
Console.WriteLine("模块 \"{0}\" {1}被加载", moduleName, isLoaded ? "" : "没有");
// 从模块中调用被导出的函数
{
string str = "HelloWorld";
int length;
length = NativeMethods.GetStringLength1(str);
Console.WriteLine("GetStringLength1(\"{0}\") => {1}", str, length);
length = NativeMethods.GetStringLength2(str);
Console.WriteLine("GetStringLength2(\"{0}\") => {1}", str, length);
}
// 从模块中调用被导出的回调函数
{
CompareCallback cmpFunc = new CompareCallback(CompareInts);
int max = NativeMethods.Max(2, 3, cmpFunc);
// 确保该委托的实例的生命周期涵盖整个非托管代码
// 否则，该委托将无法使用，在垃圾回收后。
// 你可能会收到访问冲突或非法指令错误
GC.KeepAlive(cmpFunc);
Console.WriteLine("Max(2, 3) => {0}", max);
}
// 从模块中使用被导出类.
{
CSimpleObjectWrapper obj = new CSimpleObjectWrapper();
obj.FloatProperty = 1.2F;
float fProp = obj.FloatProperty;
Console.WriteLine("Class: CSimpleObject::FloatProperty = {0:F2}", fProp);
}
// 你不通过调用GetModuleHandle 和 FreeLibrary
// 能卸载C++ DLL CppDynamicLinkLibrary
// 检查模块是否被加载。
isLoaded = IsModuleLoaded(moduleName);
Console.WriteLine("模块 \"{0}\" {1}被加载", moduleName, isLoaded ? "" : "没有");
}
