Rank: Newbie
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Joined: 2/20/2008
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Location: Swiss
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I've the problem that I have a lot of text. Now I want to calculate how many pages I need. For that I need a cdc or HDC object of the library how can I get that object?
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Rank: Administration
Groups: Administration
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Joined: 7/17/2007
Posts: 8
Points: 27
Location: Saint-Petersburg
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To get metrics of fonts you can use next piece of code: Quote:
HDC dc=CreateDC(_T("DISPLAY"),0,0,0);
BESTVIEW::COREPREVIEW_PAGESIZE CorePreviewPageSize;
ZeroMemory(&CorePreviewPageSize,sizeof(CorePreviewPageSize));
// let it be A4 sheet, i.e. 210 x 297 mm
CorePreviewPageSize.dwSize=sizeof(CorePreviewPageSize);
CorePreviewPageSize.dwPageWidth=21000;
CorePreviewPageSize.dwPageHeight=29700;
// with 10 mm margins
CorePreviewPageSize.dwLeftOffset=1000;
CorePreviewPageSize.dwTopOffset=1000;
CorePreviewPageSize.dwWidth=CorePreviewPageSize.dwPageWidth-2*CorePreviewPageSize.dwTopOffset;
CorePreviewPageSize.dwHeight=CorePreviewPageSize.dwPageHeight-2*CorePreviewPageSize.dwLeftOffset;
BESTVIEW::COREPREVIEW_COORDINATESPACE CoordinateSpace;
ZeroMemory(&CoordinateSpace,sizeof(CoordinateSpace));
CoordinateSpace.dc=dc;
CoordinateSpace.ViewportOrgXOffset=0;
CoordinateSpace.ViewportOrgYOffset=0;
// should be a positive value, let it be CorePreviewPageSize.dwPageWidth
CoordinateSpace.ViewportExtWidth=CorePreviewPageSize.dwPageWidth;
// should be a positive value, let it be CorePreviewPageSize.dwPageHeight
CoordinateSpace.ViewportExtHeight=CorePreviewPageSize.dwPageHeight;
// here we configure HDC
BESTVIEW::bvSetHdcCoordinateSpace(&CoordinateSpace,&CorePreviewPageSize);
LOGFONT LogFont;
ZeroMemory(&LogFont,sizeof(LogFont));
LogFont.lfHeight=BESTVIEW::bvCalculateFontSize(24);
LogFont.lfOutPrecision=OUT_TT_PRECIS;
LogFont.lfQuality =PROOF_QUALITY;
LogFont.lfWeight = FW_NORMAL;
LogFont.lfOutPrecision=OUT_DEFAULT_PRECIS;
LogFont.lfCharSet=DEFAULT_CHARSET;
_tcscpy(LogFont.lfFaceName,_T("Arial"));
HFONT hFont=CreateFontIndirect(&LogFont);
HFONT hOldFont=(HFONT) SelectObject(dc,hFont);
TEXTMETRIC TextMetric;
ZeroMemory(&TextMetric,sizeof(TextMetric));
BOOL b=GetTextMetrics(dc,&TextMetric);
SelectObject(dc,hOldFont);
DeleteObject(hFont);
DeleteDC(dc);
In this example I retrieve data for the TEXTMETRIC struct.
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