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We set the cTabCount to MAX_TAB_STOPS which is defined by Windows. When you specify the value for the tab stops, you specify absolute values. For instance, the first stop at = inch, the second at 1 inch, the third at 1= inch and so forth. Also, the values are specified in twips. A twip is 1/20 of a point and a point is 1/72 of an inch. That is, an inch is 1440 twips.
Although, we specify all the tab stops, you may choose to change only one or just thefirst few of the tab stops. The remainder of the tab stops would then be at the = inch interval.
PARAFORMAT pf ; pf.cbSize = sizeof(PARAFORMAT); pf.dwMask = PFM_TABSTOPS ; pf.cTabCount = MAX_TAB_STOPS; // Set tab stops every inch (=1440 twip) for( int itab = 0 ; itab < pf.cTabCount ; itab++ ) pf.rgxTabs[itab] = (itab+1) * 1440 ; SetParaFormat( pf );