By the way a cluster with table of a dll
Hello
I will try to call the GetVersionEX kernel32.dll function. (try to determien OS version)
One of the parameters is OSVERSIONINFOEX with the following definition:
typedef struct _OSVERSIONINFOEX {}
DWORD dwOSVersionInfoSize;
DWORD dwMajorVersion;
DWORD dwMinorVersion;
DWORD dwBuildNumber;
DWORD dwPlatformId;
TCHAR szCSDVersion [128];
WORD wServicePackMajor;
WORD wServicePackMinor;
WORD wSuiteMask;
BYTE WProductType;
WReserved BYTES;
} OSVERSIONINFOEX, * POSVERSIONINFOEX, * LPOSVERSIONINFOEX;
I use the library function node call in Labview with a parameter that is defined as Type-> Adapt to the Type and Format of data-> value handles. (Please correct me if this is incorrect).
I'm trying to define the OSVERSIONINFOEX structure like a bunch, but I fixed a problem on how to set the table szCSDVersion [128] so that it is not a pointer. I tried it as an initialied byte table 128 elements and string with 128 dummy characters, but the two end up being pointers.
Attached is my cluster (which does not).
Any help would be greatly appreciated in the definition of this group and finally call the dll function to get OS version information.
Thank you
James
You need to create a cluster of 128 bytes and incorporate that into your cluster as szCSDVersion; a cluster of all of the same type is identical to an array of fixed size of this type. The best way to proceed is to wire an empty cluster of U8 in table for the cluster, set the size of cluster to 128 and create a constant or a control. Drop this cluster in the right place within the cluster that you pass to the DLL. When you get the results back, you can use the cluster to table and u8 to string table to retrieve the data as a string.
Tags: NI Software
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____________
Blog: LucD notes
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