BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Copy the content from one RichEdit to another while maintain          BorlandTalk.com Forum Index -> C++ Builder (VCL Components Usage) View previous topic :: View next topic   Author Message rob kemp Guest Posted: Wed May 16, 2007 8:08 am    Post subject: Copy the content from one RichEdit to another while maintain I have two RichEdit components (RichEdit1 and RichEdit3) where RichEdit1 is filled with new rich text (fonts, alignments, colors, etc.) many times during run time (cleared and then new content is added) a) I need to collect (add to existing text already in RichEdit3 and NOT clear whatever is out there) the content of RichEdit1 into RichEdit3 while maintaining the fonts/colors/alignments/etc. I tried to execute this code everytime I get a new content in RichEdit1 but I lose the fonts/colors/aligments, etc. //execute this code to add content in RE1 to RE3 for(int x = 0; x <linesinRE1; x++) { RichEdit3->Lines->Add(RichEdit1->Lines->Strings[x]); } b) is there a way to add a page break into Richedit3 evertime I add a new content from RichEdit1, so each new content will be on a seperate page when RichEdit3 is saved and opened by MS Word Your help will be greatly appreciated Rob Back to top Remy Lebeau (TeamB) Guest Posted: Wed May 16, 2007 9:46 pm    Post subject: Re: Copy the content from one RichEdit to another while main "rob kemp" <nospam (AT) thanks (DOT) com> wrote in message news:464a75cb$1 (AT) newsgroups (DOT) borland.com... Quote: I need to collect (add to existing text already in RichEdit3 and NOT clear whatever is out there) the content of RichEdit1 into RichEdit3 while maintaining the fonts/colors/alignments/etc. Then you can't use the Lines property at all. As you have already noticed, it loses the formatting. You will need to use the EM_STREAMIN/OUT messages directly instead. For example: #include <memory> DWORD CALLBACK StreamOutCallback(DWORD dwCookie, LPBYTE pbBuff, LONG cb, LONG FAR *pcb) { *pcb = reinterpret_cast<TMemoryStream*>(dwCookie)->Write(pbBuff, cb); return 0; } DWORD CALLBACK StreamInCallback(DWORD dwCookie, LPBYTE pbBuff, LONG cb, LONG FAR *pcb) { *pcb = reinterpret_cast<TMemoryStream*>(dwCookie)->Read(pbBuff, cb); return 0; } { std::auto_ptr<TMemoryStream> data(new TMemoryStream); EDITSTREAM s; s.dwCookie = reinterpret_cast<DWORD>(data.get()); s.dwError = 0; s.pfnCallback = StreamOutCallback; RichEdit1->Perform(EM_STREAMOUT, SF_RTF, reinterpret_cast<int>(&s)); if( s.dwError != 0 ) { // an error occured... return; } data->Position = 0; s.dwError = 0; s.pfnCallback = StreamInCallback; RichEdit1->SelStart = RichEdit1->GetTextLen(); RichEdit1->SelLength = 0; RichEdit3->Perform(EM_STREAMIN, SF_RTF | SFF_SELECTION, reinterpret_cast<int>(&s)); } Quote: is there a way to add a page break into Richedit3 evertime I add a new content from RichEdit1, so each new content will be on a seperate page when RichEdit3 is saved and opened by MS Word Since EM_STREAMIN/OUT messages work with the underlying RTF codes, you could manually insert a page break instruction into the data before loading it into the target RichEdit. Gambit Back to top rob kemp Guest Posted: Wed May 16, 2007 11:10 pm    Post subject: Re: Copy the content from one RichEdit to another while main Thanks Remi Per your reply, how can I insert the page breaks manually? is it by adding \p or <Page Break>? is this is the right syntax? thanks in advance Rob Quote: Since EM_STREAMIN/OUT messages work with the underlying RTF >codes, you could manually insert a page break instruction into the data >before loading it into the target RichEdit. Back to top rob kemp Guest Posted: Wed May 16, 2007 11:10 pm    Post subject: Re: Copy the content from one RichEdit to another while main Thanks Remi Per your reply, how can I insert the page breaks manually? is it by adding \p or <Page Break>? is this is the right syntax? thanks in advance Rob Quote: Since EM_STREAMIN/OUT messages work with the underlying RTF >codes, you could manually insert a page break instruction into the data >before loading it into the target RichEdit. Back to top Remy Lebeau (TeamB) Guest Posted: Thu May 17, 2007 12:02 am    Post subject: Re: Copy the content from one RichEdit to another while main "rob kemp" <nospam (AT) thanks (DOT) com> wrote in message news:464b491b$3 (AT) newsgroups (DOT) borland.com... Quote: Per your reply, how can I insert the page breaks manually? I suggest you read up on how RTF works in general. Gambit Back to top rob kemp Guest Posted: Thu May 17, 2007 2:12 am    Post subject: Re: Copy the content from one RichEdit to another while main I read about RFT and googled a lot. And quite honestly I got confused with posts indicating that page breaks are supported in some of the RTF releases and not in others.... I really need help on this! I guess it's pretty simple what i need to do but can't figure out how to do it RichEdit1->Lines->Add("This line is on page1"); RichEdit1->Lines->Add("This line is on a new page"); RichEdit1->Lines->Add("This line is on a new page"); //etc. RichEdit1->Lines->SaveToFile( "C:\\test.rtf"); I need to add a page break between the lines so when the user open the saved test.rtf file with ShellExecute he sees the each line on a different page Thanks in advance for your help on this Rob Back to top Remy Lebeau (TeamB) Guest Posted: Thu May 17, 2007 3:16 am    Post subject: Re: Copy the content from one RichEdit to another while main "rob kemp" <nospam (AT) thanks (DOT) com> wrote in message news:464b73c0$1 (AT) newsgroups (DOT) borland.com... Quote: I read about RFT and googled a lot. And quite honestly I got confused with posts indicating that page breaks are supported in some of the RTF releases and not in others.... If you read the RTF specification on Microsoft's website, you will see the codes for page breaks. If you create a document in MS Word and then save it in RTF format, you can see the codes it uses for page breaks. Quote: I guess it's pretty simple what i need to do but can't figure out how to do it There is nothing available in the VCL to insert page breaks. You have to do it manually at the RTF level. 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