CDC::GetCharWidth

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Visual Studio 2010 - Visual C++
CDC::GetCharWidth

Retrieves the widths of individual characters in a consecutive group of characters from the current font, using m_hAttribDC, the input device context.

BOOL GetCharWidth(
   UINT nFirstChar,
   UINT nLastChar,
   LPINT lpBuffer 
) const;
BOOL GetCharWidth(
   UINT nFirstChar,
   UINT nLastChar,
   float* lpFloatBuffer 
) const;
Parameters
nFirstChar

Specifies the first character in a consecutive group of characters in the current font.

nLastChar

Specifies the last character in a consecutive group of characters in the current font.

lpBuffer

Points to a buffer that will receive the width values for a consecutive group of characters in the current font.

lpFloatBuffer

Points to a buffer to receive the character widths. The returned widths are in the 32-bit IEEE floating-point format. (The widths are measured along the base line of the characters.)

Return Value

Nonzero if the function is successful; otherwise 0.

Remarks

For example, if nFirstChar identifies the letter 'a' and nLastChar identifies the letter 'z', the function retrieves the widths of all lowercase characters.

The function stores the values in the buffer pointed to by lpBuffer. This buffer must be large enough to hold all of the widths. That is, there must be at least 26 entries in the example given.

If a character in the consecutive group of characters does not exist in a particular font, it will be assigned the width value of the default character.

Requirements

Header: afxwin.h

See Also

Reference

CDC Class
Hierarchy Chart
CDC::GetOutputCharWidth
CDC::m_hAttribDC
CDC::m_hDC
CDC::GetCharABCWidths
GetCharWidth
GetCharABCWidths
GetCharABCWidthsFloat
GetCharWidthFloat

Other Resources

CDC Members