msgs12.hlp (Topic list)
WM_CALCVALIDRECTS changes
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Corrections
 
The first parameter points to an array of two RECTL structures. The first
structure is the source rectangle; the second structure is the destination
rectangle.
 
The second parameter points to an SWP structure, not to a RECTL structure.
 
The CVR_REDRAW constant was incorrectly spelled CV_REDRAW.
 
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