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 |
); |
DEVICE_FONTTYPE
RASTER_FONTTYPE
TRUETYPE_FONTTYPE
The return value must be a nonzero value to continue enumeration; to stop enumeration, it must be zero.
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.
EnumFonts, LOGFONT, TEXTMETRIC
file: /Techref/os/win/api/win32/func/src/f20_10.htm, 3KB, , updated: 2000/4/7 12:19, local time: 2024/8/17 09:12,
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