DISEQUENCE_COMPARE Macro

The DISEQUENCE_COMPARE macro compares two DirectInput sequence numbers, compensating for wraparound.


#define DISEQUENCE_COMPARE(dwSequence1, cmp, dwSequence2)  \((int)((dwSequence1) - (dwSequence2)) cmp 0)

Parameters

dwSequence1
First sequence number to compare.
cmp
One of the following comparison operators: ==, !=, <, >, <=, or >=.
dwSequence2
Second sequence number to compare.

Return Value

\((int)((dwSequence1) - (dwSequence2)) cmp 0)

Returns a nonzero value if the result of the comparison specified by the cmp parameter is true, or zero otherwise.

The following example checks whether the dwSequence1 parameter value precedes the dwSequence2 parameter value chronologically.

BOOL Sooner = (DISEQUENCE_COMPARE(dwSequence1, <, dwSequence2));

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