Disclaimer: From MSDN 2005 Express, don't know right, Wahahaha
A series of methods for applying for non-accomplished memory, copy non-managed memory blocks, and translational translations into non-accomplished types and many of the non-accumulated code deal. (Non-managed memory looks so uncomfortable, how to say, memory is now managed by the garbage recycling mechanism; and non-contained, it is necessary to manually manage, these two differences, history The legacy issues have always been difficult to solve)
Namespace: system.Runtime.InteropServicesassembly: mscorlib (in mscorlib.dll)
prototype
Visual Basic
Notinheritable Mustinherit Public Class Marshal
C #
Public Sealed Abstract Class Marshal
C
Public __gc __sealed __ABSTRACT CLASS MARSHAL
JScript
Public Abstract Class Marshal
These static methods provided by the Marshal class are mainly used as the non-accomplished code. Most methods are advanced applications that make developers who need to establish bridges between managed and non-contained modules. For example, there is such a method StringTohglobalansi to read the string in a specified string instance (the string is in the managed bunch), then put into the non-contained buffer (the buffer is in the non-contained pile In the middle, the buffer is also assigned to a suitable size. The C # code is as follows:
String s = "hello";
INTPTR P = Marshal.StringTohglobalsi (s);
At this time, P can be considered a pointer to the "Hello" pointing to the ANSI string.
How does the Common Language Runtime provide a hash function. For more information, please refer to Interop Marshaling.
Marshal has many members, in order to better understand them, we divide members according to their use (software is used as this, I don't remember this sentence, I admit it a little).
category
member
Advanced Marshaling
advanced
(See if it is unable to divide this, MS also learns to sell self-selling)
GetManagedthunkforunmanageDmethodptr,
GetunmanagedthunkFormanageDmethodptr,
Numparambytes
COM Library Function
COM library function
(Don't think it is a serial port ...)
Bindtomoniker,
GetActiveObject
COM Utilities
COM related
ChangeWrapperHandleStrength, CreateWrapperOfType,
GetcomobjectData,
GetComslotFormethodinfo,
Getendcomslot,
GetMethodInfoforComslot, getStartComslot,
ReleaseComobject,
SetcomobjectData
Data Transformation
Data transfer / conversion
Managed to unmanaged: Copy, GetComInterfaceForObject, GetIDispatchForObject, GetIUnknownForObject, StringToBSTR, StringToCoTaskMemAnsi, StringToCoTaskMemAuto, StringToCoTaskMemUni, StringToHGlobalAnsi, StringToHGlobalAuto, StringToHGlobalUni, StructureToPtr, UnsafeAddrOfPinnedArrayElementUnmanaged to managed: Copy, GetObjectForIUnknown, GetObjectForNativeVariant, GetObjectsForNativeVariants, GetTypedObjectForIUnknown, GetTypeForITypeInfo, PtrToStringAnsi, PtrToStringAuto, PtrToStringBSTR, PTRTOStringuni
Properties: SystemDefaultcharsize, SystemMaxdbcscharsize, SYSTEMAXDBCS
Direct Reading and Writing
Access directly
Readbyte,
Readint16,
READINT32,
READINT64,
Readintptr,
Writebyte,
WriteInt16,
WriteInt32,
WriteInt64,
WriteInTr
Error Handling
Error handling
COM: gethrforexception, throwexceptionForhr
Win32: getlastwin32error, getExceptioncode, getExceptionPointers
Both: GethrforlastWin32error
Hosting Utilities
GetthreadfromfiberCookie
Iunknown
AddRef,
QueryInterface,
RELEASE
Memory Management
Memory management
COM: Alloccotaskmem, Realloccotaskmem, Freecotaskmem, FreeBSTR
Win32: Allochglobal, Reallochglobal, Freehglobal
Both: Destroystructure
Platform Invoke Utilities
Platform call
Prelink, Prelinkall, Gethinstance
Structure Inspection
Structural information
Offsetof, Sizeof
Type Information
Types of
GenerateGuidfortype,
GenerateProgidfortype,
GettypeInfoname,
GetTypelibguid,
GetTypelibguidForassembly,
GetTypeliblcid,
Gettypelibname,
IScomobject,
IStypevisibleFromcomcomcomcomcom
Inheritance level
System.Object
System.Runtime.InteropServices.Marshal
Thread security
Only some of the public static members can be a thread safe, while others cannot guarantee.
Development Platform
Windows 2000, And Windows XP Home Edition, Windows XP Professional, Windows Server 2003
NET Framework version support 1.1, 2.0
