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Overview |
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Group |
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Quick Info
Windows NT
| Yes
| Win95
| Yes
| Win32s
| Yes
| Import Library
| user-defined
| Header File
| wingdi.h
| Unicode
| No
| Platform Notes
| FONTENUMPROC
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EnumFontsProc
The EnumFontsProc function is an application-defined callback function that processes font data
from the EnumFonts function.
int CALLBACK EnumFontsProc(
lplf lplf,
| // pointer to logical-font data
| lptm lptm,
| // pointer to physical-font data
| DWORD dwType,
| // font type
| LPARAM lpData
| // pointer to application-defined data
| );
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Parameters
lplf
Points to a LOGFONT structure that contains information about the logical attributes of the font.
lptm
Points to a TEXTMETRIC structure that contains information about the physical attributes of the font.
dwType
Specifies the type of the font. This parameter can be a combination of the
following values:
DEVICE_FONTTYPE
RASTER_FONTTYPE
TRUETYPE_FONTTYPE
lpData
Points to the application-defined data passed by EnumFonts.
Return Values
The return value must be a nonzero value to continue enumeration; to stop
enumeration, it must be zero.
Remarks
The AND (&) operator can be used with the RASTER_FONTTYPE and DEVICE_FONTTYPE
constants to determine the font type. The RASTER_FONTTYPE bit of the FontType parameter specifies whether the font is a raster or vector font. If the bit
is one, the font is a raster font; if zero, it is a vector font. The
DEVICE_FONTTYPE bit of FontType specifies whether the font is a device-based or graphics device interface
(GDI)-based font. If the bit is one, the font is a device-based font; if zero, it
is a GDI-based font.
If the device is capable of text transformations (scaling, italicizing, and so
on) only the base font is enumerated. The user must inquire into the device's
text-transformation abilities to determine which additional fonts are available
directly from the device.
An application must register the EnumFontsProc function by passing its address to the EnumFonts function.
EnumFontsProc is a placeholder for the application-defined function name.
See Also
EnumFonts, LOGFONT, TEXTMETRIC
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