GetCharacterPlacement(IntPtr hdc, char* str, int nCount, int nMaxExtent, ref GCP_RESULTS lpResults, int dwFlags);
public static unsafe extern int GetCharacterPlacement(IntPtr hdc, char *str, int nCount, int nMaxExtent, ref GCP_RESULTS lpResults, int dwFlags);
public static extern int GetCharacterPlacement(HDC hdc, string lpsz, int n1, int n2, ref GCP_RESULTS lpGcpResults, int dw);
GetCharacterPlacement(IntPtr hdc, char *str, int nCount, int nMaxExtent, ref GCP_RESULTS lpResults, int dwFlags);