STRING* and external plugins

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STRING* and external plugins #323061 05/11/10 13:17 05/11/10 13:17
Joined: Jul 2005 Posts: 1,930 Austria Dark_samurai OP Serious User
Dark_samurai OP Serious User Joined: Jul 2005 Posts: 1,930 Austria	Hi! Since A7.84, STRING* doesn't work correct with my external plugins anymore. A short example: Lite-C: Code: void main() { STRING* test_str = str_create("#10"); str_cpy(test_str,"TEST"); exSample_function(test_str); } c++: Code: DLLFUNC void exSample_function(STRING* str) { char str_as_char[10]; strcpy(str_as_char,str->chars); //str_as_char is NOT filled with the correct content //only with random symbols } I guess this is because of the migration of the engine to UNICODE. But shouldn't ->chars still return a normal ASCII character set? How should this be done now? Thanks for your help! ANet - A stable and secure network plugin with multi-zone, unlimited players, voip, server-list features,... (for A7/A8)! get free version

Re: STRING* and external plugins [Re: Dark_samurai] #323062 05/11/10 13:18 05/11/10 13:18
Joined: Jan 2002 Posts: 4,225 Germany / Essen Uhrwerk Expert
Uhrwerk Expert Joined: Jan 2002 Posts: 4,225 Germany / Essen	Have you tried to convert to char with "_chr" ? Always learn from history, to be sure you make the same mistakes again...

Re: STRING* and external plugins [Re: Uhrwerk] #323066 05/11/10 13:25 05/11/10 13:25
Joined: Jul 2005 Posts: 1,930 Austria Dark_samurai OP Serious User
Dark_samurai OP Serious User Joined: Jul 2005 Posts: 1,930 Austria	Yes, it doesn't work either. ANet - A stable and secure network plugin with multi-zone, unlimited players, voip, server-list features,... (for A7/A8)! get free version

Re: STRING* and external plugins [Re: Dark_samurai] #323084 05/11/10 14:37 05/11/10 14:37
Joined: Aug 2000 Posts: 1,141 Baunatal, Germany Tobias Moderator
Tobias Moderator Joined: Aug 2000 Posts: 1,141 Baunatal, Germany	Are you used to using the VC++ debugger? With it you should see in a minute if the string->chars is wrong or not. Im also using strings in a DLL and they are working as before. BTW, that "#10" makes not sense in lite-C, it was for WDL where strings had fixed lengths, in lite-C strings need not be defined with a default length, you can just create an empty string with "".

Re: STRING* and external plugins [Re: Tobias] #323086 05/11/10 14:42 05/11/10 14:42
Joined: May 2007 Posts: 2,043 Germany Lukas Programmer
Lukas Programmer Joined: May 2007 Posts: 2,043 Germany	What about using wchar_t? This would even make your plugin support unicode. Kubetris LBGUI

Re: STRING* and external plugins [Re: Lukas] #323132 05/11/10 19:36 05/11/10 19:36
Joined: Aug 2000 Posts: 1,141 Baunatal, Germany Tobias Moderator
Tobias Moderator Joined: Aug 2000 Posts: 1,141 Baunatal, Germany	I think wchar_t is necessary only when its an unicode string, but ASCII strings have char*.

Re: STRING* and external plugins [Re: Tobias] #323133 05/11/10 19:39 05/11/10 19:39
Joined: Sep 2003 Posts: 9,859 F FBL Senior Expert
FBL Senior Expert F Joined: Sep 2003 Posts: 9,859	Try to use a global string.

Re: STRING* and external plugins [Re: FBL] #323147 05/11/10 20:13 05/11/10 20:13
Joined: May 2007 Posts: 2,043 Germany Lukas Programmer
Lukas Programmer Joined: May 2007 Posts: 2,043 Germany	Quote: I think wchar_t is necessary only when its an unicode string, but ASCII strings have char*. Yes, and if I undesrtood Dark_Samurai's problem right, then trying to use char with the STRINGs that now support unicode returns gibberish. That sounds to me like the strings are now always in Unicode and the chars now contain the bytes which are actually pairs in Unicode. That's why I think the problem can be solved with wchar_t. Kubetris LBGUI

Re: STRING* and external plugins [Re: Lukas] #323162 05/11/10 21:37 05/11/10 21:37
Joined: Aug 2000 Posts: 1,141 Baunatal, Germany Tobias Moderator
Tobias Moderator Joined: Aug 2000 Posts: 1,141 Baunatal, Germany	Yes, but you can see in the debugger if a STRING contains unicode or not. With Unicode, the chars pointer is an array that looks like this: 00 41 00 42 00 43...00 00. every second byte is 00. But this is only for unicode strings, normal strings just look as before: 41 42 43... 00.

Re: STRING* and external plugins [Re: Tobias] #323262 05/12/10 18:07 05/12/10 18:07
Joined: May 2007 Posts: 2,043 Germany Lukas Programmer
Lukas Programmer Joined: May 2007 Posts: 2,043 Germany	Yes and using wchar_t it would be 0041 0042 0043...0000, as two bytes would be one number. But I think I understand now what you meant. If each second byte is zero, the char array should seem emtpy instead of containing gibberish. Kubetris LBGUI

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