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 |
| ); |
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