@mmadl wrote:
Hello! Any progress on this post?
Hello mmadl, thank you for asking - no progress.
Have you also included toolbox.h?
no such file on my computer.
i'm not sure what the function PStrToDSLStr does. Can you comment it out and compile?
do you have the LabVIEW Runtime installed? / in which folder is lvrt.dll located?
out of extcode.h:
First there is a definition of UHandle, PStr and LStrHandle:
@/** @brief Basic unsigned character pointer and handle types. */
typedef uChar *UPtr, **UHandle;
@/** @brief Pascal-style string types. 1-byte length followed by data. */
typedef uChar *PStr, **PStrHandle;
/* Long Pascal-style string types. */
typedef struct {
int32 cnt; /* number of bytes that follow */
uChar str[1]; /* cnt bytes */
} LStr, *LStrPtr, **LStrHandle;
Second there is a function to allocate memory
/*** The Memory Manager ***/
/*
For parameters to the memory manager functions below
p means pointer
h means handle
ph means pointer to handle
*/
TH_REENTRANT EXTERNC UHandle _FUNCC DSNewHandle(size_t);
TH_REENTRANT EXTERNC UHandle _FUNCC DSNewHClr(size_t);
this function DSNewHClr() I find in lvrt.dll, which is located at C:\Program Files (x86)\National Instruments\Shared\LabVIEW Run-Time\2014
DSNewHClr() creates a Handle to memory allocated inside the memory manager.
In my example it contains a string.
To copy my string to this reserved memory I should use
/*** Long Pascal-Style String Support Functions ***/
TH_REENTRANT EXTERNC MgErr _FUNCC PStrToDSLStr(PStr buf, LStrHandle *lStr);
PStrToDSLStr() is not found in lvrt.dll. Where can I find it?
do you already know this example: http://www.ni.com/example/26515/en/
this example seems to be for C++, I am using C#:
Microsoft Visual Studio 2008
Version 9.0.21022.8 RTM
Microsoft .NET Framework
Version 3.5 SP1
Installierte Edition: C# Express
Microsoft Visual C# 2008 91910-152-0000061-60010
Microsoft Visual C# 2008
so the main question remains: which LV-DLL contains
TH_REENTRANT EXTERNC MgErr _FUNCC PStrToDSLStr(PStr buf, LStrHandle *lStr);
alternatively: which function can I use to pass my string to memory manager managed allocations?
