内存操作api
1 ZeroMemory - 置0
VOID ZeroMemory(
PVOID Destination, // address of block to fill with zeros
DWORD Length // size, in bytes, of block to fill with zeros
);
Parameters
Destination
Points to the starting address of the block of memory to fill with zeros.
Length
Specifies the size, in bytes, of the block of memory to fill with zeros.
Return Values
This function has no return value.
2 CopyMemory - 拷贝
VOID CopyMemory (
PVOID Destination, // address of copy destination
CONST VOID *Source, // address of block to copy
DWORD Length // size, in bytes, of block to copy
);
Parameters
Destination
Points to the starting address of the copied block's destination.
Source
Points to the starting address of the block of memory to copy.
Length
Specifies the size, in bytes, of the block of memory to copy.
Return Values
This function has no return value.
Remarks
If the source and destination blocks overlap, the results are undefined. For overlapped blocks, use the MoveMemory function.
3 FillMemory - 填充
VOID FillMemory (
PVOID Destination, // pointer to block to fill
DWORD Length, // size, in bytes, of block to fill
BYTE Fill // the byte value with which to fill
);
Parameters
Destination
Points to the starting address of the block of memory to fill.
Length
Specifies the size, in bytes, of the block of memory to fill.
Fill
Specifies the byte value with which to fill the memory block.
Return Values
This function has no return value.
4 MoveMemory - 移动
VOID MoveMemory (
PVOID Destination, // address of move destination
CONST VOID *Source, // address of block to move
DWORD Length // size, in bytes, of block to move
);
Parameters
Destination
Points to the starting address of the destination of the move.
Source
Points to the starting address of the block of memory to move.
Length
Specifies the size, in bytes, of the block of memory to move.
Return Values
This function has no return value.
Remarks
The source and destination blocks may overlap.