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GetCharABCWidthsFloat function

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

Syntax


BOOL GetCharABCWidthsFloat(
  _In_   HDC hdc,
  _In_   UINT iFirstChar,
  _In_   UINT iLastChar,
  _Out_  LPABCFLOAT lpABCF
);

Parameters

hdc [in]

Handle to the device context.

iFirstChar [in]

Specifies the code point of the first character in the group of consecutive characters where the ABC widths are seeked.

iLastChar [in]

Specifies the code point of the last character in the group of consecutive characters where the ABC widths are seeked. This range is inclusive. An error is returned if the specified last character precedes the specified first character.

lpABCF [out]

Pointer to an array of ABCFLOAT structures that receives the character widths, in logical units.

Return value

If the function succeeds, the return value is nonzero.

If the function fails, the return value is zero.

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 specified 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.

Requirements

Minimum supported client

Windows 2000 Professional [desktop apps only]

Minimum supported server

Windows 2000 Server [desktop apps only]

Header

Wingdi.h (include Windows.h)

Library

Gdi32.lib

DLL

Gdi32.dll

Unicode and ANSI names

GetCharABCWidthsFloatW (Unicode) and GetCharABCWidthsFloatA (ANSI)

See also

Fonts and Text Overview
Font and Text Functions
ABCFLOAT
GetCharABCWidths
GetCharWidth
GetCharWidthFloat

 

 

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