max strings
BlitzMax Forums/BlitzMax Programming/max strings
| ||
| ok... I give up. How are strings handled in max? I'm trying to pass and return strings from a dll and all I'm getting is garbage. I've tried passing by reference to the dll, just the string itself, a memory pointer to the string (varptr)... No joy in sending a string to the dll. All I get is a three character string like "PyZ" or something similar with high ascii. In RECIEVING a string from the dll I've tried sending it back as unicode, a pointer to the string, the string itself, null terminated, etc etc etc... All I get back is garbage. What's going on? |
| ||
| If you want to use them with a DLL (created in C) you must convert them to CStrings using the .toCString() method. To get it using extern, you must attache $z as returntype (or type declaration for variables) |
| ||
| I keep hearing this $z thing and don't see it anywhere in the sparse and relatively useless docs. And since the search function of the site is equally useless......... I will try the tocstring() method though. Thanks. |
| ||
| $z is a type specifier, but while $ declares a blitz max string, $z declares a C string. This is needed to communicate with most DLLs where you get a string or need to send a cstring. But you are right with the search functionality and the docs ... hope at least the later will improve over time. The blitzwiki is a good point to start normally, its worlds above the documentation for this kind of "find it out yourself" stuff. |
| ||
| and This |
| ||
| you might want to read this: http://www.blitzbasic.com/Community/posts.php?topic=51481 there are parts mentioning issues with CStrings and automatic garbage collection. |
   |