public static CHARFORMATA Create(Control control, bool selection)
{
CHARFORMATA retVal = null;
if (control.IsHandleCreated)
{
retVal = new CHARFORMATA();
SendMessage(new HandleRef(control, control.Handle), EM_GETCHARFORMAT, selection ? SCF_SELECTION : SCF_DEFAULT, retVal);
}
return(retVal);
}
public static float?GetSelectionSize(RichTextBox control)
{
var lParam = new CHARFORMATA();
lParam.cbSize = Marshal.SizeOf(lParam);
// Get the underline style
SendMessage(new HandleRef(control, control.Handle), EM_GETCHARFORMAT, SCF_SELECTION, lParam);
if ((lParam.dwMask & -CFM_SIZE) != 0)
{
float emSize = ((float)lParam.yHeight) / 20f;
if ((emSize == 0f) && (lParam.yHeight > 0))
{
emSize = 1f;
}
return(emSize);
}
else
{
return(null);
}
}
public static CHARFORMATA Create(Control control, bool selection)
{
CHARFORMATA retVal = null;
if (control.IsHandleCreated)
{
retVal = new CHARFORMATA();
SendMessage(new HandleRef(control, control.Handle), EM_GETCHARFORMAT, selection ? SCF_SELECTION : SCF_DEFAULT, retVal);
}
return retVal;
}
private static extern IntPtr SendMessage(HandleRef hWnd, int msg, int wParam, [In, Out, MarshalAs(UnmanagedType.LPStruct)] CHARFORMATA lParam);
