IDWriteTextLayout3::GetLineMetrics method (dwrite_3.h)

Retrieves properties of each line.

Syntax

HRESULT GetLineMetrics(
  [out] DWRITE_LINE_METRICS1 *lineMetrics,
        UINT32               maxLineCount,
  [out] UINT32               *actualLineCount
);

Parameters

[out] lineMetrics

The array to fill with line information.

maxLineCount

The maximum size of the lineMetrics array.

[out] actualLineCount

The actual size of the lineMetrics
array that is needed.

Return value

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

Remarks

If maxLineCount is not large enough E_NOT_SUFFICIENT_BUFFER,
which is equivalent to HRESULT_FROM_WIN32(ERROR_INSUFFICIENT_BUFFER),
is returned and actualLineCount is set to the number of lines
needed.

Requirements

See also

IDWriteTextLayout3