public static Gdi32Context FromGraphics(Graphics graphics, bool preserveClipping, bool preserveTranslateTransform) { HandleRef handleRef = default(HandleRef); try { if (preserveClipping || preserveTranslateTransform) { Region? region = null; Matrix? matrix = null; WindowsRegion?windowsRegion = null; if (graphics.GetContextInfo() is object[] contextInfo && contextInfo.Length == 2) { region = (contextInfo[0] as Region); matrix = (contextInfo[1] as Matrix); if (region is { }) { windowsRegion = WindowsRegion.FromRegion(region, graphics); } }
public RegionFlags CombineRegion(WindowsRegion region1, WindowsRegion region2, RegionCombineMode mode) { return(CombineRgn(HRegion, region1.HRegion, region2.HRegion, mode)); }