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69 lines
2.1 KiB
C++
69 lines
2.1 KiB
C++
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// ------------------------------------------------------------------
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// Windows 2000 Graphics API Black Book
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// Chapter 4 - Utility functions
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//
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// Created by Damon Chandler <dmc27@ee.cornell.edu>
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// Updates can be downloaded at: <www.coriolis.com>
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//
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// Please do not hesistate to e-mail me at dmc27@ee.cornell.edu
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// if you have any questions about this code.
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// ------------------------------------------------------------------
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//>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
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#include <windows.h>
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#include <cassert>
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#include "mk_font.h"
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//<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
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namespace font {
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// creates a logical font
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HFONT MakeFont(
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IN HDC hDestDC, // handle to target DC
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IN LPCSTR typeface_name, // font's typeface name
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IN int point_size, // font's point size
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IN const BYTE charset, // font's character set
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IN const DWORD style // font's styles
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)
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{
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//
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// NOTE: On Windows 9x/Me, GetWorldTransform is not
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// supported. For compatibility with these platforms you
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// should initialize the XFORM::eM22 data member to 1.0.
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//
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XFORM xf = {0, 0, 0, 1.0, 0, 0};
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GetWorldTransform(hDestDC, &xf);
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int pixels_per_inch = GetDeviceCaps(hDestDC, LOGPIXELSY);
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POINT PSize = {
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0,
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-MulDiv(static_cast<int>(xf.eM22 * point_size + 0.5),
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pixels_per_inch, 72)
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};
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HFONT hResult = NULL;
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if (DPtoLP(hDestDC, &PSize, 1))
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{
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LOGFONT lf;
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memset(&lf, 0, sizeof(LOGFONT));
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lf.lfHeight = PSize.y;
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lf.lfCharSet = charset;
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lstrcpyn(reinterpret_cast<LPTSTR>(&lf.lfFaceName),
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typeface_name, LF_FACESIZE);
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lf.lfWeight = (style & FS_BOLD) ? FW_BOLD : FW_DONTCARE;
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lf.lfItalic = (style & FS_ITALIC) ? true : false;
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lf.lfUnderline = (style & FS_UNDERLINE) ? true : false;
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lf.lfStrikeOut = (style & FS_STRIKEOUT) ? true : false;
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// create the logical font
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hResult = CreateFontIndirect(&lf);
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}
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return hResult;
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}
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//-------------------------------------------------------------------------
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} // namespace font
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