reactos/rosapps/tests/primitives/mk_font.cpp

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