IDWriteTextLayout::GetFontSize method (dwrite.h)

Gets the font em height of the text at the specified position.

Syntax

HRESULT GetFontSize(
                  UINT32            currentPosition,
  [out]           FLOAT             *fontSize,
  [out, optional] DWRITE_TEXT_RANGE *textRange
);

Parameters

currentPosition

Type: UINT32

The position of the text to inspect.

[out] fontSize

Type: FLOAT*

When this method returns, contains the size of the font in ems of the text at the specified position.

[out, optional] textRange

Type: DWRITE_TEXT_RANGE*

The range of text that has the same formatting as the text at the position specified by currentPosition. This means the run has the exact formatting as the position specified, including but not limited to the font size.

Return value

Type: HRESULT

If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.

Requirements

Requirement	Value
Minimum supported client	Windows 7, Windows Vista with SP2 and Platform Update for Windows Vista [desktop apps | UWP apps]
Minimum supported server	Windows Server 2008 R2, Windows Server 2008 with SP2 and Platform Update for Windows Server 2008 [desktop apps | UWP apps]
Target Platform	Windows
Header	dwrite.h
Library	Dwrite.lib
DLL	Dwrite.dll

See also

IDWriteTextLayout