BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  RichEdit background colour Goto page 1, 2  Next          BorlandTalk.com Forum Index -> C++ Builder (VCL Components Usage) View previous topic :: View next topic   Author Message David Ayre Guest Posted: Wed Apr 12, 2006 4:03 pm    Post subject: RichEdit background colour Hi, I am using a TRichEdit component and use the following code to add lines to it:- void __fastcall TAudit::AddLine(TRichEdit *RE,const AnsiString &Text,int iSize,const AnsiString &Name,bool IsBold) { //Add line to RichEdit RE->SelStart = RE->GetTextLen(); RE->SelLength = 0; RE->SelAttributes->Name = Name; RE->SelAttributes->Size = iSize; TFontStyles Styles = RE->SelAttributes->Style; if(IsBold)Styles << fsBold; else Styles >> fsBold; RE->SelAttributes->Style = Styles; RE->SelText = (Text + "\r\n"); } This works well, but is it possible to set the background colour of the line in this routine. I would like lines to be alternately white and moneygreen. Thanks, David Ayre Back to top Remy Lebeau (TeamB) Guest Posted: Wed Apr 12, 2006 6:03 pm    Post subject: Re: RichEdit background colour "David Ayre" <davidcayre (AT) ntlworld (DOT) com> wrote in message news:443d174f$1 (AT) newsgroups (DOT) borland.com... Quote: This works well, but is it possible to set the background colour of the line in this routine. The ability to specify per-character background colors was introduced in RichEdit v2.0. TRichEdit uses v1.0 instead. The only way to use RichEdit v2.0+ features in TRichEdit is if you are running your code under XP or higher. Those OS versions have RichEdit v3.0/4.0 installed, and internally map all RichEdit v1.0 controls to that version. The code still thinks that it is using v1.0, but it can send v3.0+ commands to it. Otherwise, you will have to stop using TRichEdit entirely and write/find a third-party component that uses the newer RichEdit versions. Have a look at Robert Dunn's TaeRichEdit component (http://home.att.net/~robertdunn/Yacs.html) and his articles on RichEdit controls. Gambit Back to top David Ayre Guest Posted: Wed Apr 12, 2006 8:03 pm    Post subject: Re: RichEdit background colour "Remy Lebeau \(TeamB\)" <no.spam (AT) no (DOT) spam.com> wrote: Quote: The ability to specify per-character background colors was introduced in RichEdit v2.0. TRichEdit uses v1.0 instead. The only way to use RichEdit v2.0+ features in TRichEdit is if you are running your code under XP or higher. Those OS versions have RichEdit v3.0/4.0 installed, and internally map all RichEdit v1.0 controls to that version. The code still thinks that it is using v1.0, but it can send v3.0+ commands to it. Thanks Remy, Nothing's ever simple, is it? I am using BDS 2006 and running Win XP Prof. Where can I find the commands that will allow me to use the other features of RichEdit 3.0/4.0? Or do you think it would be better to change over to the taeRichEdit component? Cheers, David Back to top Remy Lebeau (TeamB) Guest Posted: Wed Apr 12, 2006 11:03 pm    Post subject: Re: RichEdit background colour "David Ayre" <davidcayre (AT) ntlworld (DOT) com> wrote in message news:443d4a23$1 (AT) newsgroups (DOT) borland.com... Quote: Where can I find the commands that will allow me to use the other features of RichEdit 3.0/4.0? MSDN, where else? ;-) Specifically, for this particular issue, use the EM_SETCHARFORMAT2 message to assign the colors. Gambit Back to top David Ayre Guest Posted: Thu Apr 13, 2006 9:03 am    Post subject: Re: RichEdit background colour "Remy Lebeau \(TeamB\)" <no.spam (AT) no (DOT) spam.com> wrote: Quote: "David Ayre" <davidcayre (AT) ntlworld (DOT) com> wrote in message news:443d4a23$1 (AT) newsgroups (DOT) borland.com... Where can I find the commands that will allow me to use the other features of RichEdit 3.0/4.0? MSDN, where else? ;-) Specifically, for this particular issue, use the EM_SETCHARFORMAT2 message to assign the colors. Gambit Thanks Remy, I'll see what I can find. Cheers, David Back to top Antonio Felix Guest Posted: Thu Apr 13, 2006 12:03 pm    Post subject: Re: RichEdit background colour "David Ayre" <davidcayre (AT) ntlworld (DOT) com> wrote: Quote: I tried MSDN but couldn't find anything on RichEdit. It's probably me but I think it is one of the most unhelpful websites I have seen. I tried phoning them but got nowhere with that either. Could you tell me how I should use EM_SETCHARFORMAT2 please. Hi David, Take a look at http://msdn.microsoft.com/library/default.asp?url=/library/en-us/shellcc/platform/commctls/richedit/richeditcontrols/richeditcontrolreference/richeditstructures/charformat2.asp HTH Antonio Back to top Antonio Guest Posted: Thu Apr 13, 2006 12:03 pm    Post subject: Re: RichEdit background colour "Antonio Felix" <nomail (AT) nm (DOT) pt> wrote: Quote: "David Ayre" <davidcayre (AT) ntlworld (DOT) com> wrote: I tried MSDN but couldn't find anything on RichEdit. It's probably me but I think it is one of the most unhelpful websites I have seen. I tried phoning them but got nowhere with that either. Could you tell me how I should use EM_SETCHARFORMAT2 please. Hi David, Take a look at http://msdn.microsoft.com/library/default.asp?url=/library/en-us/shellcc/platform/commctls/richedit/richeditcontrols/richeditcontrolreference/richeditstructures/charformat2.asp HTH Antonio David, Rich Edit 2.0 allows you to use either structure, CHARFORMAT & CHAFORMAT2, with the EM_GETCHARFORMAT and EM_SETCHARFORMAT messages. Br Antonio Back to top David Ayre Guest Posted: Thu Apr 13, 2006 12:03 pm    Post subject: Re: RichEdit background colour I tried MSDN but couldn't find anything on RichEdit. It's probably me but I think it is one of the most unhelpful websites I have seen. I tried phoning them but got nowhere with that either. Could you tell me how I should use EM_SETCHARFORMAT2 please. Cheers, David "David Ayre" <davidcayre (AT) ntlworld (DOT) com> wrote: Quote: "Remy Lebeau \(TeamB\)" <no.spam (AT) no (DOT) spam.com> wrote: "David Ayre" <davidcayre (AT) ntlworld (DOT) com> wrote in message news:443d4a23$1 (AT) newsgroups (DOT) borland.com... Where can I find the commands that will allow me to use the other features of RichEdit 3.0/4.0? MSDN, where else? ;-) Specifically, for this particular issue, use the EM_SETCHARFORMAT2 message to assign the colors. Gambit Thanks Remy, I'll see what I can find. Cheers, David Back to top David Ayre Guest Posted: Thu Apr 13, 2006 2:03 pm    Post subject: Re: RichEdit background colour Thanks Antonio, That's great. Cheers, David "Antonio" <nomail (AT) nm (DOT) pt> wrote: Quote: "Antonio Felix" <nomail (AT) nm (DOT) pt> wrote: "David Ayre" <davidcayre (AT) ntlworld (DOT) com> wrote: I tried MSDN but couldn't find anything on RichEdit. It's probably me but I think it is one of the most unhelpful websites I have seen. I tried phoning them but got nowhere with that either. Could you tell me how I should use EM_SETCHARFORMAT2 please. Hi David, Take a look at http://msdn.microsoft.com/library/default.asp?url=/library/en-us/shellcc/platform/commctls/richedit/richeditcontrols/richeditcontrolreference/richeditstructures/charformat2.asp HTH Antonio David, Rich Edit 2.0 allows you to use either structure, CHARFORMAT & CHAFORMAT2, with the EM_GETCHARFORMAT and EM_SETCHARFORMAT messages. Br Antonio Back to top Antonio Felix Guest Posted: Thu Apr 13, 2006 3:03 pm    Post subject: Re: RichEdit background colour "David Ayre" <davidcayre (AT) ntlworld (DOT) com> wrote: Quote: Hi David, Take a look at http://msdn.microsoft.com/library/default.asp?url=/library/en-us/shellcc/platform/commctls/richedit/richeditcontrols/richeditcontrolreference/richeditstructures/charformat2.asp HTH Antonio David, Rich Edit 2.0 allows you to use either structure, CHARFORMAT & CHAFORMAT2, with the EM_GETCHARFORMAT and EM_SETCHARFORMAT messages. Tried the following:- CHARFORMAT *fmt = new CHARFORMAT(); fmt->cbSize = sizeof(fmt); fmt->dwMask = CFM_BACKCOLOR; fmt->crBackColor = clMoneyGreen; RE->Perform(EM_SETCHARFORMAT,SCF_SELECTION,(LPARAM)fmt); delete fmt; and I get an error message saying that there is no crBackColor in CHARFORMAT. If I replace CHARFORMAT with CHARFORMAT2 it says that there is ambiguity between CHARFORMAT2A and RichEdit::CHARFORMAT2A What am I doing wrong? Cheers, David Hi David, I'm away from my Dev machine, but try to use the explicit qualifier for the namespace. The richedit.hpp defines; namespace Richedit so you may use (untested): Richedit::CHARFORMAT2 *fmt = new CHARFORMAT2(); HTH Antonio Back to top David Ayre Guest Posted: Thu Apr 13, 2006 3:03 pm    Post subject: Re: RichEdit background colour Quote: Hi David, Take a look at http://msdn.microsoft.com/library/default.asp?url=/library/en-us/shellcc/platform/commctls/richedit/richeditcontrols/richeditcontrolreference/richeditstructures/charformat2.asp HTH Antonio David, Rich Edit 2.0 allows you to use either structure, CHARFORMAT & CHAFORMAT2, with the EM_GETCHARFORMAT and EM_SETCHARFORMAT messages. Tried the following:- CHARFORMAT *fmt = new CHARFORMAT(); fmt->cbSize = sizeof(fmt); fmt->dwMask = CFM_BACKCOLOR; fmt->crBackColor = clMoneyGreen; RE->Perform(EM_SETCHARFORMAT,SCF_SELECTION,(LPARAM)fmt); delete fmt; and I get an error message saying that there is no crBackColor in CHARFORMAT. If I replace CHARFORMAT with CHARFORMAT2 it says that there is ambiguity between CHARFORMAT2A and RichEdit::CHARFORMAT2A What am I doing wrong? Cheers, David Back to top David Ayre Guest Posted: Thu Apr 13, 2006 4:03 pm    Post subject: Re: RichEdit background colour "David Ayre" <davidcayre (AT) ntlworld (DOT) com> wrote: Quote: Hi David, I'm away from my Dev machine, but try to use the explicit qualifier for the namespace. The richedit.hpp defines; namespace Richedit so you may use (untested): Richedit::CHARFORMAT2 *fmt = new CHARFORMAT2(); HTH Antonio Thanks Antonio, I'll give that a try. David Hi Antonio, I tried that and it now compiles. This is my code which I use to add a line to the RichEdit:- void __fastcall TAudit::AddLine(TRichEdit *RE,const AnsiString &Text,int iSize,const AnsiString &Name,bool IsBold) { //Add line to RichEdit Richedit::CHARFORMAT2 *fmt = new Richedit::CHARFORMAT2(); fmt->cbSize = sizeof(fmt); fmt->dwMask = CFM_BACKCOLOR; fmt->crBackColor = (TColor)clRed; RE->SelStart = RE->GetTextLen(); RE->SelLength = 0; RE->SelAttributes->Name = Name; RE->SelAttributes->Size = iSize; TFontStyles Styles = RE->SelAttributes->Style; if(IsBold)Styles << fsBold; else Styles >> fsBold; RE->SelAttributes->Style = Styles; RE->Perform(EM_SETCHARFORMAT,SCF_SELECTION,(LPARAM)fmt); RE->SelText = (Text + "\r\n"); delete fmt; } The additions to set the backgrount colour does nothing. For this test I'm just setting the background to clRed. When I get it to work I'll add the new colour to the routine parameters so that it can be different for each line. Everything except the background colour works OK. Any ideas? Cheers, David Back to top David Ayre Guest Posted: Thu Apr 13, 2006 4:03 pm    Post subject: Re: RichEdit background colour Quote: Hi David, I'm away from my Dev machine, but try to use the explicit qualifier for the namespace. The richedit.hpp defines; namespace Richedit so you may use (untested): Richedit::CHARFORMAT2 *fmt = new CHARFORMAT2(); HTH Antonio Thanks Antonio, I'll give that a try. David Back to top Remy Lebeau (TeamB) Guest Posted: Thu Apr 13, 2006 6:03 pm    Post subject: Re: RichEdit background colour "David Ayre" <davidcayre (AT) ntlworld (DOT) com> wrote in message news:443e2abb$1 (AT) newsgroups (DOT) borland.com... Quote: I tried MSDN but couldn't find anything on RichEdit. Did you use the search engine? There is a whole chapter on RichEdits. Took me about 5 seconds to find: http://search.msdn.microsoft.com/search/results.aspx?view=msdn&st=b&na=82&qu=rich+edit+controls The first item on the results list is this: Rich Edit Controls (Windows Explorer and Controls) http://msdn.microsoft.com/library/en-us/shellcc/platform/commctls/RichEdit/RichEditControls.asp Navigating into the "Messages" section of that chapter, you find this: EM_SETCHARFORMAT Message http://msdn.microsoft.com/library/en-us/shellcc/platform/commctls/richedit/richeditcontrols/richeditcontrolreference/richeditmessages/em_setcharformat.asp Which then leads you to this: CHARFORMAT2 Structure http://msdn.microsoft.com/library/en-us/shellcc/platform/commctls/richedit/richeditcontrols/richeditcontrolreference/richeditstructures/charformat2.asp crBackColor Background color. To use this member, set the CFM_BACKCOLOR flag in the dwMask member. This member is ignored if the CFE_AUTOBACKCOLOR character effect is specified. Quote: It's probably me but I think it is one of the most unhelpful websites I have seen. MSDN works just fine, you just have to be comfortable with its search engine. Quote: I tried phoning them but got nowhere with that either. That was a waste of time. Gambit Back to top David Ayre Guest Posted: Thu Apr 13, 2006 6:03 pm    Post subject: Re: RichEdit background colour I've cracked it. fmt->cbSize = sizeof(fmt); Should have been:- fmt->cbSize = sizeof(Richedit::CHARFORMAT2); Now it works. Thanks for all the help. David Quote: Hi Antonio, I tried that and it now compiles. This is my code which I use to add a line to the RichEdit:- void __fastcall TAudit::AddLine(TRichEdit *RE,const AnsiString &Text,int iSize,const AnsiString &Name,bool IsBold) { //Add line to RichEdit Richedit::CHARFORMAT2 *fmt = new Richedit::CHARFORMAT2(); fmt->cbSize = sizeof(fmt); fmt->dwMask = CFM_BACKCOLOR; fmt->crBackColor = (TColor)clRed; RE->SelStart = RE->GetTextLen(); RE->SelLength = 0; RE->SelAttributes->Name = Name; RE->SelAttributes->Size = iSize; TFontStyles Styles = RE->SelAttributes->Style; if(IsBold)Styles << fsBold; else Styles >> fsBold; RE->SelAttributes->Style = Styles; RE->Perform(EM_SETCHARFORMAT,SCF_SELECTION,(LPARAM)fmt); RE->SelText = (Text + "\r\n"); delete fmt; } The additions to set the backgrount colour does nothing. For this test I'm just setting the background to clRed. When I get it to work I'll add the new colour to the routine parameters so that it can be different for each line. Everything except the background colour works OK. Any ideas? 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