pinvoke.net: Edit: kernel32.virtualalloc

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Summary: The VirtualAllocEx API

!!!!C# Signature:
 [DllImport("kernel32.dll", SetLastError=true, ExactSpelling=true)]
 static extern IntPtr VirtualAllocEx(IntPtr hProcess, IntPtr lpAddress,
   IntPtr dwSize, AllocationType flAllocationType, MemoryProtection flProtect);
!!!!VB.NET Signature:
 <DllImport("kernel32.dll", SetLastError:=True, ExactSpelling:=True)> _
 Private Function VirtualAllocEx(ByVal hProcess As IntPtr, ByVal lpAddress As IntPtr, _
     ByVal dwSize As IntPtr, ByVal flAllocationType As UInteger, _
     ByVal flProtect As UInteger) As IntPtr
 End Function
!!!!Boo Signature:
 [DllImport("kernel32.dll", SetLastError : true, ExactSpelling : true)]
 static def VirtualAllocEx(hProcess as IntPtr, lpAddress as IntPtr, dwSize as IntPtr, flAllocationType as AllocationType, flProtect as MemoryProtection) as IntPtr:
     pass
!!!!User-Defined Types:
 [Flags]
 public enum AllocationType
 {
     Commit = 0x1000,
     Reserve = 0x2000,
     Decommit = 0x4000,
     Release = 0x8000,
     Reset = 0x80000,
     Physical = 0x400000,
     TopDown = 0x100000,
     WriteWatch = 0x200000,
     LargePages = 0x20000000
 }

[Flags]
 public enum MemoryProtection
 {
     Execute = 0x10,
     ExecuteRead = 0x20,
     ExecuteReadWrite = 0x40,
     ExecuteWriteCopy = 0x80,
     NoAccess = 0x01,
     ReadOnly = 0x02,
     ReadWrite = 0x04,
     WriteCopy = 0x08,
     GuardModifierflag = 0x100,
     NoCacheModifierflag = 0x200,
     WriteCombineModifierflag = 0x400
 }

[Flags]
 enum AllocationType:
     Commit = 0x1000
     Reserve = 0x2000
     Decommit = 0x4000
     Release = 0x8000
     Reset = 0x80000
     Physical = 0x400000
     TopDown = 0x100000
     WriteWatch = 0x200000
     LargePages = 0x20000000

[Flags]
 enum MemoryProtection:
     Execute = 0x10
     ExecuteRead = 0x20
     ExecuteReadWrite = 0x40
     ExecuteWriteCopy = 0x80
     NoAccess = 0x01
     ReadOnly = 0x02
     ReadWrite = 0x04
     WriteCopy = 0x08
     GuardModifierflag = 0x100
     NoCacheModifierflag = 0x200
     WriteCombineModifierflag = 0x400
!!!!Notes:
None.

!!!!Tips & Tricks:
You can get the dwSize in C# with Marshal.SizeOf(typeof(TYPE))

!!!!Sample Code:
Please add some!

!!!!Alternative Managed API:
The ManagedWindowsApi project (http://mwinapi.sourceforge.net) provides a ProcessMemoryChunk class to allocate and access memory of a different process.

Documentation: VirtualAllocEx@msdn on MSDN