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Need font used by CListView in report mode so can print columns with same size

I am trying to print information that is held in a CListView in report mode. I have about 12 - 15 columns that have been sized to the header and text in the column below with a LVSCW_AUTOSIZE_USEHEADER and then the user may have changed the widths of any colunn by moving the header separators. I want to replicate this column information (not necessarily in the same columns) in fields on the printed output.

I can get the width of each column in pixels from the LV_COLUMN struct but I'm not sure how to get the average number of characters that the column is sized for. If I could get the font that the list control is using then I could ask text metrics for the average character width and from that get the number of average chacters in each column. Since I know the printer font, I can size the printer fields to match the list control fields.

Basic question is: How can I ask the system for the font that a list control is using?

Can the user change a list control font?

Do different machines have different list control fonts?

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RONSLOW

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emitchell

ASKER

I tried using GetFont() in the list control. The sequence was as follows:

// pick up the actual list control associated with this view
CListCtrl& rlc = GetListCtrl();

// get the font for list control window
CFont* pFont = rlc.GetFont();
LOGFONT lf;
int ret = pFont->GetLogFont(&lf);

The LOGFONT struct here has -10 for the lfHeight member and 0 for the lfWidth which is supposed to be the average character width of the font. ie.

      lfHeight      -10
      lfWidth      0
...
+      lfFaceName      0x006eeae8 "MS Sans Serif"

I got the above text by highlighting the line in the QuickWatch window and doing Copy/Paste into this doc.

I need the average width so that I can convert the cx from the CListCtrl in pixels to an average number of characters.

RONSLOW

get a DC (GetDC) for the list control and then call GetTextMetrics on in and get the average character width from there.

Or call GetTextExtent with a large string (eg "ABCD...XYZabcd...xyz") and work out average size from that.

emitchell

ASKER

The DC for the ListCtrl does the trick. The average character width from this works fine.

Thanks to the input. I'm sorry I have been so long in responding but I was travelling back to the cold North from Florida!