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GetCharABCWidthsFloat info  Overview  Group

The GetCharABCWidthsFloat function retrieves the widths, in logical units, of consecutive characters in a specified range from the current font.

BOOL GetCharABCWidthsFloat(

    HDC hdc,

// handle of device context

    UINT iFirstChar,

// first character in range to query

    UINT iLastChar,

// last character in range to query

    LPABCFLOAT lpABCF 

// address of character-width structure

   );

Parameters

hdc
Identifies the device context.
iFirstChar
Specifies the code point of the first character in the group of consecutive characters where the ABC widths are sought.
iLastChar
Specifies the code point of the last character in the group of consecutive characters where the ABC widths are sought. This range is inclusive. An error is returned if the specified last character precedes the specified first character.
lpABCF
Points to an application-defined buffer with an array of ABCFLOAT structures to receive the character widths when the function returns.

Return Values

If the function succeeds, the return value is nonzero.

If the function fails, the return value is zero. To get extended error information, call GetLastError.

Remarks

Unlike the GetCharABCWidths function that returns widths only for TrueType fonts, the GetCharABCWidthsFloat function retrieves widths for any font. The widths returned by this function are in the IEEE floating-point format.

If the current world-to-device transformation is not identified, the returned widths may be noninteger values, even if the corresponding values in the device space are integers.

A spacing is the distance added to the current position before placing the glyph. B spacing is the width of the black part of the glyph. C spacing is the distance added to the current position to provide white space to the right of the glyph. The total advanced width is given by A+B+C.

The ABC spaces are measured along the character base line of the selected font.

The ABC widths of the default character are used for characters outside the range of the currently selected font.

See Also

ABCFLOAT, GetCharABCWidths, GetCharWidth, GetCharWidthFloat

See:


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