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| How to convert C type struct to Windev structure |
| Iniciado por guest, 14,oct. 2015 06:16 - 1 respuesta |
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| Publicado el 14,octubre 2015 - 06:16 |
I have several questions about data type.
1. Does windev have similar function to Sizeof() ?
2. For unsigned long in C, what is the corresponding type? System int?
How about this unsigned long (4 byte) is in a struct? Assuming we convert struct to structure. Will it affect other variable in the structure?
3.
typedef struct FTRPACK
{
Unsigned long dwSize; // Length of data in bytes.
void *pData; // Data pointer. Most likely, it will be a byte array which length is 2001.
} FTR_DATA, *FTR_DATA_PTR;
int myContext;
int FTR_PURPOSE_ENROLL;
FTR_DATA Template;
Now I want to use API() function to call the following function (in a dll file).
FTREnroll(myContext, FTR_PURPOSE_ENROLL, &Template);
How do I define the Template variable? I tried to make *pData as a fixed byte array. But it is telling me invalid argument.
Any suggestion? |
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| Publicado el 14,octubre 2015 - 08:12 |
Hi Bruce,
Look at tools, WDTool WDAPI, it has a section to convert C to WL.
Regards,
Piet |
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