public bool CreateNameEntitys(string text, ref List <NameEntity> nameList)
{
nameList = new List <NameEntity>();
IntPtr arrayPtr = IntPtr.Zero;
uint arraySize = 0;
if (_handle.IsInvalid)
{
return(false);
}
//CoTaskMem, FreeCoTaskMem
if (CreateNameEntitys(_handle, text, out arrayPtr, ref arraySize))
{
NameEntity[] names = new NameEntity[arraySize];
IntPtr cur = arrayPtr;
for (int i = 0; i < arraySize; i++)
{
names[i] = new NameEntity();
//cur->names, free cur
Marshal.PtrToStructure(cur, names[i]);
Marshal.DestroyStructure(cur, typeof(NameEntity));
cur = (IntPtr)((int)cur + Marshal.SizeOf(names[i]));
}
Marshal.FreeCoTaskMem(arrayPtr);
nameList.AddRange(names);
return(true);
}
else
{
return(false);
}
}
public bool TestComplexDllLoadLibraryByParam(IntPtr nameEntityPtr)
{
Console.WriteLine("Complex:Use DllLoadLibrary, ");
IntPtr hModule = Win32.LoadLibrary("testCppDll.dll");
int error = Marshal.GetLastWin32Error();
//NameEntityType type = NameEntityType.OrganizationName;
int type = 0;
if (hModule == IntPtr.Zero)
{
return(false);
}
{
//test findNames func
CreateNameEntitysByType createNameEntitys = (CreateNameEntitysByType)UseComplexDllByLoadLibrary.GetFunctionAddress(hModule, "CreateNameEntitysByType", typeof(CreateNameEntitysByType));
string text = "";
IntPtr arrayPtr = IntPtr.Zero;
uint arraySize = 0;
List <NameEntity> nameList = new List <NameEntity>();
if (createNameEntitys(text, out arrayPtr, ref arraySize, type))
{
NameEntity[] names = new NameEntity[arraySize];
IntPtr cur = arrayPtr;
for (int i = 0; i < arraySize; i++)
{
names[i] = new NameEntity();
//cur->names, free cur
Marshal.PtrToStructure(cur, names[i]);
Marshal.DestroyStructure(cur, typeof(NameEntity));
cur = (IntPtr)((int)cur + Marshal.SizeOf(names[i]));
}
Marshal.FreeCoTaskMem(arrayPtr);
nameList.AddRange(names);
}
//createName
CreateNameEntityByType createNameEntity = (CreateNameEntityByType)UseComplexDllByLoadLibrary.GetFunctionAddress(hModule, "CreateNameEntityByType", typeof(CreateNameEntityByType));
IntPtr namePtr = IntPtr.Zero;
if (createNameEntity(out namePtr, type))
{
NameEntity retStruct = (NameEntity)Marshal.PtrToStructure(namePtr, typeof(NameEntity));
// 在非托管代码中使用CoTaskMemAlloc分配的内存，可以使用Marshal.FreeCoTaskMem方法释放
Marshal.FreeCoTaskMem(namePtr);
Console.WriteLine("非托管函数返回的结构体数据：double = {0:f6}, int = {1}",
retStruct._score, retStruct._highlightLength);
AppDomain appDomain = AppDomain.CurrentDomain;
appDomain.SetData("createNameEntity", retStruct);
}
NameEntity paramStruct = (NameEntity)Marshal.PtrToStructure(nameEntityPtr, typeof(NameEntity));
paramStruct._type = NameEntityType.OrganizationName;
Marshal.StructureToPtr(paramStruct, nameEntityPtr, false);
//在非托管代码中使用CoTaskMemAlloc分配的内存，可以使用Marshal.FreeCoTaskMem方法释放
}
Win32.FreeLibrary(hModule);
Console.WriteLine("Complex: Test END\n");
return(true);
}
public void TestReturnStructByNew()
{
IntPtr pStruct = TestReturnNewStruct();
NameEntity retStruct =
(NameEntity)Marshal.PtrToStructure(pStruct, typeof(NameEntity));
// 在非托管代码中使用new/malloc分配的内存，
// 需要调用对应的释放内存的释放方法将其释放掉
FreeStruct(pStruct);
Console.WriteLine("非托管函数返回的结构体数据：double = {0:f6}, int = {1}",
retStruct._score, retStruct._highlightLength);
}
public void TestReturnStructByArg()
{
IntPtr ppStruct = IntPtr.Zero;
TestReturnStructFromArg(ref ppStruct);
NameEntity retStruct =
(NameEntity)Marshal.PtrToStructure(ppStruct, typeof(NameEntity));
// 在非托管代码中使用CoTaskMemAlloc分配的内存，可以使用Marshal.FreeCoTaskMem方法释放
Marshal.FreeCoTaskMem(ppStruct);
Console.WriteLine("非托管函数返回的结构体数据：double = {0:f6}, int = {1}",
retStruct._score, retStruct._highlightLength);
}
public bool CreateNameEntity(ref NameEntity nameEntity)
{
IntPtr namePtr = IntPtr.Zero;
if (_handle.IsInvalid)
{
return(false);
}
if (CreateNameEntity(_handle, out namePtr))
{
Marshal.PtrToStructure(namePtr, nameEntity);
Marshal.DestroyStructure(namePtr, typeof(NameEntity));
Marshal.FreeCoTaskMem(namePtr);
}
return(true);
}