C / C++ / MFC

FirstPrevNext

Re: DAO FindFirst 5-Jul-01 1:23 5-Jul-01 1:23  Thans Nick, I'll give it a try! Richard Re: DAO FindFirst Hadi Rezaee5-Jul-01 9:47 Hadi Rezaee 5-Jul-01 9:47  Hi, In this example Favorite Bars is field name ? My month article: Game programming by DirectX by Lan Mader. Please visit in: www.geocities.com/hadi_rezaie/index.html Hadi Rezaie Re: DAO FindFirst otvac5-Jul-01 14:26 otvac 5-Jul-01 14:26  Hi, Yes Favourite Bars is a field name. FindFirst works OK until a key is passed that contains an apostrophe (Joe's Place, for example). I've tried everything I know to work around this (which isn't much). All ideas appreciated! Richard type cast a CString to a LPTSTR Jose Cruz4-Jul-01 10:29 Jose Cruz 4-Jul-01 10:29  How can I type cast a CString to a LPTSTR to avoid this error: 'type cast' : cannot convert from 'char *(__thiscall CString::*)(int)' to 'char *' Re: type cast a CString to a LPTSTR Oscar Londono4-Jul-01 10:35 Oscar Londono 4-Jul-01 10:35  Try CString::GetBuffer.;) Oscar L. Re: type cast a CString to a LPTSTR Jose Cruz4-Jul-01 10:37 Jose Cruz 4-Jul-01 10:37  I did but I get a type cast error too. Re: type cast a CString to a LPTSTR Jose Cruz4-Jul-01 10:44 Jose Cruz 4-Jul-01 10:44  Code problem: This is the structure of rvi: typedef struct _RVITEM { UINT nMask; INT iItem; INT iSubItem; LPTSTR lpszText; INT iTextMax; INT iTextColor; INT iImage; INT iCheck; INT iBkColor; UINT nPreview; INT iIndent; UINT nState; LPARAM lParam; INT iOverlay; _RVITEM() : nMask(0), iItem(RVI_INVALID), iSubItem(-1), lpszText(NULL), iTextMax(0), iTextColor(-1), iImage(-1), iCheck(-1), iBkColor(-1), nPreview(0), iIndent(-1), nState(0), lParam(0), iOverlay(0) {}; } RVITEM, FAR* LPRVITEM; CString strDato; //The followin returns a CString: pBdeDb->GetFieldAsString(1,&bIsBlank); strDato = pBdeDb->GetFieldAsString(1,&bIsBlank); //strncpy(strDato, Dato, strDato.GetLength()); rvi.iSubItem = 0; rvi.lpszText = strDato.GetBuffer;//<--------------Problem--------- rc.SetItem(&rvi); Re: type cast a CString to a LPTSTR Oscar Londono4-Jul-01 10:51 Oscar Londono 4-Jul-01 10:51  Sorry. Use -> strDato.GetBuffer(0); But, remember that this buffer is temporary if strDato is local variable.!! To avoid this, create a buffer : rvi.lpszText = new char[strDato.GetLength()]; strcpy(rvi.lpszText, strDato); Oscar L. Re: type cast a CString to a LPTSTR Jose Cruz4-Jul-01 11:02 Jose Cruz 4-Jul-01 11:02  Thank you very much. Re: type cast a CString to a LPTSTR Carlos Antollini4-Jul-01 11:22 Carlos Antollini 4-Jul-01 11:22  Te aconsejo usar strcpy(rvi.lpszText, strDato.GetBuffer(0)); Cheers!!! Carlos Antollini. Re: type cast a CString to a LPTSTR Oscar Londono4-Jul-01 11:42 Oscar Londono 4-Jul-01 11:42  Ese tambien funciona. La diferencia esta en que la primera devuelve un LPCTSTR (que es constante y es menos peligrosa) y la segunda devuelve un LPTSTR que se puede modificar directamente. Si deseas poder usar cast: strcpy(rvi.lpszText, (LPCTSTR) strDato); Oscar L. Re: type cast a CString to a LPTSTR Jose Cruz4-Jul-01 12:05 Jose Cruz 4-Jul-01 12:05  Abusando de tu amabilidad: Podrias enseñarme como convierto de: double a LPTSTR. BOOL PTSTR. COleDateTime a LPTSTR. Long a LPTSTR. int a LPTSTR. Re: type cast a CString to a LPTSTR Oscar Londono4-Jul-01 12:30 Oscar Londono 4-Jul-01 12:30  Jose! Dale un vistazo a la documentación de CString::Format con la cual podes realizar las conversiones tipo sprintf. De igual forma COleDateTime tambien tiene el método COleDataTime::Format. Oscar L. Re: type cast a CString to a LPTSTR Jose Cruz4-Jul-01 12:38 Jose Cruz 4-Jul-01 12:38  y que tal de int, long y BOOL a LPTSTR Re: type cast a CString to a LPTSTR Jose Cruz4-Jul-01 12:15 Jose Cruz 4-Jul-01 12:15  Gracias. Podrias echarme la mno con mi otra pregunta. de como convertir de los otros diferentes tipos de datos a LPTSTR Re: type cast a CString to a LPTSTR Carlos Antollini5-Jul-01 4:35 Carlos Antollini 5-Jul-01 4:35  Usa wsprintf. LPTSTR str = NULL; int n = 1000; malloc((LPTSTR)str, 256); //or the size that you want wsprintf(str, "%d", n); //int -> LPTSTR Check the documentatión about wsprintf for other types. Carlos Antollini. Re: type cast a CString to a LPTSTR Carlos Antollini5-Jul-01 4:43 Carlos Antollini 5-Jul-01 4:43  También tenes las funciones itoa() y ltoa() para convertir the int y long a Ascii luego lo convertis a LPCTSTR. El booleano es sencillo. BOOL bVAl = TRUE; LPTSTR str = bVal ? "TRUE": "FALSE"; Saludos Carlos Antollini. N-ary Tree sniper4-Jul-01 8:45 sniper 4-Jul-01 8:45  Is there any site that has VC++ source code for N-ary tree? Or is there such class provided by MS Visual studio? Re: N-ary Tree Ghazi H. Wadi4-Jul-01 11:38 Ghazi H. Wadi 4-Jul-01 11:38  Try Data Structures and Algorithms with Object-Oriented Design Patterns in C++ By Dr. Bruno R. Preiss check out the c++ source code of the book Cheers Alfadhly It is Illogical to define an inventor by his invention Re: N-ary Tree Nick Blumhardt4-Jul-01 21:25 Nick Blumhardt 4-Jul-01 21:25  That's a clever aphorism in your sig... Just out of interest, where is it from? Re: N-ary Tree Ghazi H. Wadi5-Jul-01 7:56 Ghazi H. Wadi 5-Jul-01 7:56  Thanks Nick, It is just a disclaimer so my answers here don't get mixed up with my work , ideological background or my hair cut preferences Cheers It is Illogical to define an inventor by his invention Using of classes from LIB ... Hadi Rezaee4-Jul-01 8:00 Hadi Rezaee 4-Jul-01 8:00  Hi all, Please explain to me, how can i add LIB to my project ? and how can i use of it ? Because, first i copy the LIB files to my project directory, then in Project Setting i wrote the lib file in Link section in setting ... But, i want to add the classes from LIB file to my project which i'll can use of classes in my project ... Please help me ... My month article: Game programming by DirectX by Lan Mader. Please visit in: www.geocities.com/hadi_rezaie/index.html Hadi Rezaie Re: Using of classes from LIB ... Michael P Butler4-Jul-01 9:11 Michael P Butler 4-Jul-01 9:11  You'll need to include the LIB's .h files into your source code then you'll be able to inherit the classes into your own classes. Michael Re: Using of classes from LIB ... Hadi Rezaee4-Jul-01 11:11 Hadi Rezaee 4-Jul-01 11:11  Thanks alot, My month article: Game programming by DirectX by Lan Mader. Please visit in: www.geocities.com/hadi_rezaie/index.html Hadi Rezaie Re: Using of classes from LIB ... l a u r e n4-Jul-01 11:07 l a u r e n 4-Jul-01 11:07  hey hadi are you talking about the crystal reports thing again? you must link in crpe32m.lib (i think thats what is called) in your project settings as well as include the .h file in your stdafx.h file i emailed you some sample code earlier today and the files you need to include ... did you get them? --- "every year we invent better idiot proof systems and every year they invent better idiots"

Last Visit: 31-Dec-99 18:00     Last Update: 6-Jun-24 2:49 Refresh ᐊ Prev1...18214182151821618217182181821918220182211822218223 Next ᐅ

General    News    Suggestion    Question    Bug    Answer    Joke    Praise    Rant    Admin   

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.