Buffer.MemoryCopy Method
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Copies a block of memory.
Overloads
| MemoryCopy(Void*, Void*, Int64, Int64) |
Copies a number of bytes specified as a long integer value from one address in memory to another. This API is not CLS-compliant. |
| MemoryCopy(Void*, Void*, UInt64, UInt64) |
Copies a number of bytes specified as an unsigned long integer value from one address in memory to another. This API is not CLS-compliant. |
- Source:
- Buffer.cs
- Source:
- Buffer.cs
- Source:
- Buffer.cs
Important
This API is not CLS-compliant.
Copies a number of bytes specified as a long integer value from one address in memory to another.
This API is not CLS-compliant.
public:
static void MemoryCopy(void* source, void* destination, long destinationSizeInBytes, long sourceBytesToCopy);[System.CLSCompliant(false)]
[System.Security.SecurityCritical]
public static void MemoryCopy(void* source, void* destination, long destinationSizeInBytes, long sourceBytesToCopy);[System.CLSCompliant(false)]
public static void MemoryCopy(void* source, void* destination, long destinationSizeInBytes, long sourceBytesToCopy);[<System.CLSCompliant(false)>]
[<System.Security.SecurityCritical>]
static member MemoryCopy : nativeptr<unit> * nativeptr<unit> * int64 * int64 -> unit[<System.CLSCompliant(false)>]
static member MemoryCopy : nativeptr<unit> * nativeptr<unit> * int64 * int64 -> unitParameters
- source
- Void*
The address of the bytes to copy.
- destination
- Void*
The target address.
- destinationSizeInBytes
- Int64
The number of bytes available in the destination memory block.
- sourceBytesToCopy
- Int64
The number of bytes to copy.
- Attributes
Exceptions
sourceBytesToCopy is greater than destinationSizeInBytes.
Remarks
This method copies sourceBytesToCopy bytes from the address specified by source to the address specified by destination. If some regions of the source area and the destination overlap, the function ensures that the original source bytes in the overlapping region are copied before being overwritten.
Applies to
.NET 10 and other versions
| Product | Versions |
|---|---|
| .NET | Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10 |
| .NET Framework | 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
| .NET Standard | 1.3, 1.4, 1.5, 1.6, 2.0, 2.1 |
| UWP | 10.0 |
- Source:
- Buffer.cs
- Source:
- Buffer.cs
- Source:
- Buffer.cs
Important
This API is not CLS-compliant.
Copies a number of bytes specified as an unsigned long integer value from one address in memory to another.
This API is not CLS-compliant.
public:
static void MemoryCopy(void* source, void* destination, System::UInt64 destinationSizeInBytes, System::UInt64 sourceBytesToCopy);[System.CLSCompliant(false)]
[System.Security.SecurityCritical]
public static void MemoryCopy(void* source, void* destination, ulong destinationSizeInBytes, ulong sourceBytesToCopy);[System.CLSCompliant(false)]
public static void MemoryCopy(void* source, void* destination, ulong destinationSizeInBytes, ulong sourceBytesToCopy);[<System.CLSCompliant(false)>]
[<System.Security.SecurityCritical>]
static member MemoryCopy : nativeptr<unit> * nativeptr<unit> * uint64 * uint64 -> unit[<System.CLSCompliant(false)>]
static member MemoryCopy : nativeptr<unit> * nativeptr<unit> * uint64 * uint64 -> unitParameters
- source
- Void*
The address of the bytes to copy.
- destination
- Void*
The target address.
- destinationSizeInBytes
- UInt64
The number of bytes available in the destination memory block.
- sourceBytesToCopy
- UInt64
The number of bytes to copy.
- Attributes
Exceptions
sourceBytesToCopy is greater than destinationSizeInBytes.
Remarks
This method copies sourceBytesToCopy bytes from the address specified by source to the address specified by destination. If some regions of the source area and the destination overlap, the function ensures that the original source bytes in the overlapping region are copied before being overwritten.
Applies to
.NET 10 and other versions
| Product | Versions |
|---|---|
| .NET | Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10 |
| .NET Framework | 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
| .NET Standard | 1.3, 1.4, 1.5, 1.6, 2.0, 2.1 |
| UWP | 10.0 |
