Parameter Type [Revelation On-Line Wiki]

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====== Parameter Type ======

 

Each parameter for the function has a specified type. Parameter types are listed in the table which follows.

^Type^Description^
|VOID|Not supported.|
|CHAR|The first character of the BASIC+ string is passed to the DLL.|
|BYTE|A 1 byte signed integer is passed to the DLL.|
|UBYTE|A 1 byte unsigned integer is passed to the DLL.|
|SHORT|A 2 byte signed integer is passed to the DLL.|
|USHORT|A 2 byte unsigned integer is passed to the DLL.|
|LONG|A 4 byte signed integer is passed to the DLL.|
|ULONG|Not supported.|
|FLOAT|A 4 byte floating point value is passed to the DLL.|
|DOUBLE|An 8 byte floating point value is passed to the DLL.|
|LPVOID|A 4 byte value is passed to the DLL. It is the responsibility of the programmer to ensure that this value is a valid far pointer. \\ \\ **Note:** This value can be the value returned from a DLL function returning LPVOID, or the value returned from [[getpointer|GetPointer()]].|
|LPCHAR|A far pointer is passed to the OpenInsight string.\\ \\ **Note**: If the DLL is expecting a pointer to a null-terminated string, then concatenate Char(0) to the end of the string.|
|LPBYTE|A far pointer to a 1 byte signed integer is passed to the DLL.|
|LPUBYTE|A far pointer to a 1 byte unsigned integer is passed to the DLL.|
|LPSHORT|A far pointer to a 2 byte signed integer is passed to the DLL.|
|LPUSHORT|A far pointer to a 2 byte unsigned integer is passed to the DLL.|
|LPLONG|A far pointer to a 4 byte signed integer is passed to the DLL.|
|LPULONG|Not supported.|
|LPFLOAT|Not supported.|
|LPDOUBLE|A far pointer to an 8 byte floating point value is passed to the DLL.|