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Piotr Tracz
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Feb 21, 2011 - 5:19 AM
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Hello, ProfUIS 2.91. I have derived class from CExtPPVW <CExtGridWnd> with __EGCS_EX_AUTO_BEST_FIT set for every. In grid inicialization function there is line BestFitColumns( 0L, -1L, 0, true, true, false, true); so everything works perfect. I want change font size during print / print preview of my CExtPPVW <CExtGridWnd> derived grid. Font change is done vie overriding virtual void OnPrepareDC(CDC * pDC,CPrintInfo *pInfo = NULL). The problem is that after changing font column’s width is not recalculated. I guess I need to invoke BestFitColumns somewhere after OnPrepareDC but not sure where and when. I guess BestFitColumns should be also again invoked after closing print preview or after printing to make normal "view" well fitted. What is the bes solution to make __EGCS_EX_AUTO_BEST_FIT working in that case.
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Technical Support
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Feb 21, 2011 - 11:46 AM
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The printing/previewing subsystem is completely independent from the grid control. Please override the CExtGridCell::OnQueryCellFont() or CExtGridWnd::OnGridCellQueryFont() virtual methods to provide particular grid cells with custom font. These methods have the dwHelperPaintFlags parameter which will contain the __EGCPF_PRINTING_TARGET_MASK flags in case of printing.
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