A string that contains a regular expression. A regular expression must by in ECMAScript syntax.
Code page for regular expression pattern encoding or CP_UNICODE (-5) for UTF-16.
The number of sub-match to search for. 0 means the entire expression.
Flags that change the behavior of the function. May be one or more of the following values:
True to ignore case and false to match case.
pDataBufferPointer to the statistics bufferBlocksNumber of blocksStartFrom
A start offset of the range. Must be a multiple of 2 if RegExpTypeUNICODE flag is specified.
Range's size. Must be a multiply of 2 if RegExpTypeUNICODE flag is specified.
S_OK or standard OLE error code.
Calculates file statistics for a given regular expression. See the Pattern Statistics section for more information. On method return, the pDataBuffer buffer is filled with calculated statistics values. Complexity: linear-time, depending on the file's size and regular expression complexity.