Search found 1945 matches
- Jul 02, 2022 22:51
- Forum: DOS
- Topic: DOS drivers in FreeBASIC
- Replies: 7
- Views: 262
Re: DOS drivers in FreeBASIC
Yes, exactly. You will just have to avoid loading both libraries at the same time, of course. Likely your program can read a configuration file, and load the appropriate library.
- Jul 02, 2022 22:42
- Forum: General
- Topic: Weird behavior in fixed length strings
- Replies: 0
- Views: 36
Weird behavior in fixed length strings
While a ZSTRING can't contain a null byte, a regular string should be able to contain it, no matter if it is a variable length or a fixed length one. Yet, I found a strange behavior: dim s as string*80=chr(0)+"Alpha"+chr(0)+"Beta" print asc(s) print s as expected, the first chara...
Re: TUI font
Right, I forgot, because it compiles perfectly under Linux, since cdecl is the standard here.
So, if we want to split the hair, your comment should have been "'' Otherwise it doesn't compile on Windows"
So, if we want to split the hair, your comment should have been "'' Otherwise it doesn't compile on Windows"
TUI font
Years ago I tried to make a font for a TUI in QBASIC. http://www.petesqbsite.com/phpBB3/viewtopic.php?f=3&t=3165&p=20107&sid=8934c3af2075ece11f4dba689127437c#p20107 I tried porting it to FreeBasic: type Font w as long h as long d as any ptr end type enum FB_FONT_8 = 0, FB_FONT_14 FB_FONT...
- Jun 30, 2022 23:48
- Forum: General
- Topic: Feature request: strings in UDTs
- Replies: 28
- Views: 956
Re: Feature request: strings in UDTs
In the old QBASIC there was also another reason for not using the 0 terminator: since QBASIC didn't have the BYTE data type , the only way to store a single byte variable inside an UDT was to store it as STRING*1. Adding a zero after that would have made it useless. FreeBasic has the BYTE and UBYTE ...
- Jun 30, 2022 6:57
- Forum: DOS
- Topic: OpenGL for DOS?
- Replies: 1
- Views: 84
Re: OpenGL for DOS?
There is no plan to support OpenGL in dos, since it would require to include a whole OpenGL driver in the graphic runtime. And the only driver available for dos is a very, very outdated version of Mesa
- Jun 29, 2022 22:21
- Forum: General
- Topic: Feature request: strings in UDTs
- Replies: 28
- Views: 956
Re: Feature request: strings in UDTs
The string must always be null terminated. Otherwise, it won't work with all string functions, because string functions expect a null character. Not necessarily. The only information needed by the string function is where the string ends: and that information can be provided by putting a zero at th...
- Jun 27, 2022 19:01
- Forum: Community Discussion
- Topic: Suggestion about the inner Dictionary or Collection.
- Replies: 9
- Views: 398
Re: Suggestion about the inner Dictionary or Collection.
Well, using generics you wouldn't have to dig deeply in the language, all you have to do is to include a simple header file. In C++ (that uses generics), if you want to implement a linked list, or an associative array, you can dig in the language, but you don't have to if you don't want. Declaring a...
- Jun 27, 2022 10:42
- Forum: Windows
- Topic: Drawing directly on the screen
- Replies: 0
- Views: 106
Drawing directly on the screen
This example should draw a line on the screen, over the windows already displayed
Code: Select all
#include "Windows.bi"
dim as HDC hDC = GetDC(0)
MoveToEx(hdc, 0, 0, NULL)
LineTo(hdc, 1000, 1000)
ReleaseDC(NULL, hdc)
- Jun 27, 2022 0:35
- Forum: Community Discussion
- Topic: Suggestion about the inner Dictionary or Collection.
- Replies: 9
- Views: 398
Re: Suggestion about the inner Dictionary or Collection.
Actually, there are two possibilities: one is implementing generics, the other is implementing only some containers (dictionaries and lists, for example) as part of the language. Both solutions have advantages and disadvantages: generics and templates is surely more versatile, although more like c++...
- Jun 26, 2022 10:35
- Forum: Community Discussion
- Topic: Suggestion about the inner Dictionary or Collection.
- Replies: 9
- Views: 398
Re: Suggestion about the inner Dictionary or Collection.
Do you suggest to implement it using hash table or binary tree?
- Jun 24, 2022 10:44
- Forum: General
- Topic: Feature request: strings in UDTs
- Replies: 28
- Views: 956
Re: Feature request: strings in UDTs
By the way, a ZSTRING doesn't have that issue: its length is exactly as declared, inside a type Yes, but the maximum number of useful characters for the user is 'length - 1' (because of the mandatory terminal character). I made some tests: it is actually possible to use all the characters, removing...
- Jun 23, 2022 17:19
- Forum: General
- Topic: Feature request: strings in UDTs
- Replies: 28
- Views: 956
Re: Feature request: strings in UDTs
What is the point of using a FIELD parameter when you can already use ZSTRING? It's literally just one character to add. Maybe in QB mode the strings inside a TYPE should be treated as ZSTRINGS, just to make UDT compatible with QB (in case one is porting a program that was supposed to read a file wi...
- Jun 23, 2022 16:26
- Forum: General
- Topic: Feature request: strings in UDTs
- Replies: 28
- Views: 956
Re: Feature request: strings in UDTs
At this point, I doubt: changing that would break too much existing FreeBasic code.
By the way, a ZSTRING doesn't have that issue: its length is exactly as declared, inside a type
By the way, a ZSTRING doesn't have that issue: its length is exactly as declared, inside a type
- Jun 18, 2022 16:41
- Forum: DOS
- Topic: Some questions about fbc for DOS/FreeDOS.
- Replies: 2
- Views: 186
Re: Some questions about fbc for DOS/FreeDOS.
1) No, I have just tested on DosBox, FreeBasic returns an error message if there is no DPMI extender. By the way, is the file CWSDPMI.EXE either in the FreeBasic directory, or in another directory in the search path, the program written in FreeBasic (and the compiler itself) can invoke it, loading a...