Chapter 8 Utility Library
© National Instruments Corporation 8-57 LabWindows/CVI Standard Libraries
ReadFromPhysicalMemoryint status = ReadFromPhysicalMemory (unsigned int physicalAddress,
void *destinationBuffer,
unsigned int numberOfBytes);
Note: This function is available only on the Windows versions of LabWindows/CVI.
Purpose
Copies the contents of a region of physical memory into destinationBuffer. The function does
not check whether the memory actually exists. If the memory does not exist, the success value is
returned but no data is read.
Note: For you to be able to use this function under Windows 95 or NT, the LabWindows/CVI
low-level support driver must be loaded.
Parameters
Input physicalAddress unsigned integer The physical address to be read
from. There are no restrictions
on the address; it can be below
or above 1 MB.
destinationBuffer void pointer The buffer into which the
physical memory will be copied.
numberOfBytes unsigned integer The number of bytes to copy
from physical memory.
Return Value
status integer Indicates whether the function
succeeded.
Return Codes
1Success.
0Failure reported by the operating system, or low-level
support driver not loaded.