StrPadLeftA (FUN)

FUNCTION StrPadLeftA : BOOL

This function generate a padding string and concatenates it with pstFrom to pstTo if the iBufferSize from pstTo is big enough. The function will do its work either with native IEC-Strings or with strings coming from external functions. It will return FALSE and does no concatenation if one of the strings is NULL or the buffer size is not big enough.

InOut:

Scope	Name	Type	Comment
Return	StrPadLeftA	BOOL
Input	byPadChar	BYTE	The padding character filling the space from left
	pstFrom	CharBufferPtr	simply a pointer to byte
	pstTo	CharBufferPtr	simply a pointer to byte
	diBufferSize	DINT	the buffer size of pstTo