The D2D1_SHARPEN_PROP_SHARPNESS property is a float value indicating how much to sharpen the input image. The allowed range is 0.0 to 10.0. The default value is 0.0.
The D2D1_SHARPEN_PROP_THRESHOLD property is a float value. The allowed range is 0.0 to 1.0. The default value is 0.0.
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