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ReadProcessMemory (user32)
 
.
Summary
Reads data from an area of memory in a specified process. The entire area to be read must be accessible or the operation fails.

C# Signature:

[DllImport("kernel32.dll", SetLastError = true)]
   public static extern bool ReadProcessMemory(
   IntPtr hProcess,
   IntPtr lpBaseAddress,
   byte[] lpBuffer,
   Int32 nSize,
   out IntPtr lpNumberOfBytesRead);

VB Signature:

   Private Declare Function ReadProcessMemory Lib "kernel32" (ByVal hProcess As Integer, ByVal lpBaseAddress As Integer, ByVal lpBuffer As Integer, ByVal nSize As Integer, ByRef lpNumberOfBytesWritten As Integer) As Integer

Parameters
hProcess in

A handle to the process with memory that is being read. The handle must have PROCESS_VM_READ access to the process.

lpBaseAddress in

A pointer to the base address in the specified process from which to read. Before any data transfer occurs, the system verifies that all data in the base address and memory of the specified size is accessible for read access, and if it is not accessible the function fails.

lpBuffer out

A pointer to a buffer that receives the contents from the address space of the specified process.

nSize in

The number of bytes to be read from the specified process.

lpNumberOfBytesRead out

A pointer to a variable that receives the number of bytes transferred into the specified buffer. If lpNumberOfBytesRead is NULL, the parameter is ignored.

User-Defined Types:

None.

Alternative Managed API:

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Notes:

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Sample Code:

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Documentation

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