Yokogawa PC-Based MX100 - Manual (Page 241)

3-6
IM MX190-01E
3.2 Program - MX100/Visual C -
Adding the Path to the Include File
Add the path of the include file (DAQMX.h) to the project. The method of adding the
include file varies depending on the environment used.
Declaration in the Source File
Write the declaration in the source file.
#include "DAQMX.h"
Note
The include file of the common section (DAQHandler.h) is referenced from the include
file described above. Thus, declaration for it is not necessary.
Load Library Statement
The statement below is added so that the executable module (.dll) of the API can
link to the process.
The executable module (.dll) of the API is mapped within the address space
(LoadLibrary). Next, the address of the export function in the executable module is
retrieved (GetProcAddress).
The callback type of the function pointer is the function name with a prefix “DLL”
added and converted to uppercase. It is defined in the include file of the API.
HMODULE pDll = LoadLibrary("DAQMX");
DLLOPENMX openMX = (DLLOPENMX)GetProcAddress(pDll, "openMX");