Retrieving text format from a richedit

Hello, I have problems working with EM_GETCHARFORMAT and EM_GETPARAFORMAT messages: seems like they don't do anything. I use a richedit which I modify with EM_SETCHARFORMAT and EM_SETPARAFORMAT, since here that's all right. But when I try to retrieve the formats for each character the masks and formats seems empty (or does not match with any of the the previously setted formats and does not match with any valid value for those formats). That's what I use to get the formats:

CHARRANGE chr;
PARAFORMAT pf;
CHARFORMAT cf;
int l=GetWindowTextLength(hEditor);
chr.cpMin=0;
chr.cpMax=1;
SetFocus(hEditor);
SendMessage(hEditor,EM_EXSETSEL,0,(LPARAM)&chr);
SendMessage(hEditor,EM_GETPARAFORMAT,0,(LPARAM)&pf);
SendMessage(hEditor,EM_GETCHARFORMAT,0,(LPARAM)&cf);

That should be right to retrieve the paraformat and charformat of the first character no? But using this the mask value (dwMask) returned in the PARAFORMAT and CHARFORMAT structs are both the same (2010562660), even if I set up a  PFM_ALIGNMENT on the paraformat and whatever charformatting style, the mask returned is the same. Also if the text isn't formatted the mask returned is exactly the same as before. I have tried it selecting the hole text using the text length or selecting from cpMin=0to cpMax=-1 (selects also all the text), but the same result.

Then , how can I get those paraformat and charformats?
Thank's in advance
jbosch(vosk)