Simple cross-platform C GUI library

Simple cross-platform C GUI library

axilmar

Member #1,204

April 2001

Qt should be adopted by the C++ community as the defacto C++ SDK.

ALGUI: c++11 A5 GUI library.

Archon

Member #4,195

January 2004

Quote:

Qt should be adopted by the C++ community as the defacto C++ SDK.

Unfortunately, that'd GPL everything done with C++. Unless Tomasu can purchase us all licences.

Thomas Fjellstrom

Member #476

June 2000

Heh, I wish. I can't afford my own licence at the moment.

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BAF

Member #2,981

December 2002

C# still beats Qt, IMO as far as RAD goes. I've not used Qt much, but I don't think it has a fully integrated GUI designer and kick ass IDE. Of course, the caveat there is that its primarily Windows target audience. :-/

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Thomas Fjellstrom

Member #476

June 2000

The Qt designer fully integrates into MSVC and Eclipse.

MiquelFire

Member #3,110

January 2003

Though, for MSVC (unless they changed recently) you have to pay anyway. (MSVC IDE was not free when it went dual license between their pay and GPL)

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Thomas Fjellstrom

Member #476

June 2000

Pretty much. But you have to pay for the good C# ide anyhow.

Archon

Member #4,195

January 2004

Quote:

Pretty much. But you have to pay for the good C# ide anyhow.

...or be a part of a university course that is linked with Microsoft

Actually, I suggested to one of my lecturers to ask if he could discuss about the .odf standard -- perhaps to replace the widespread .doc standard (it was a far shot, I know). He said that it may be difficult because of my university's ties with Microsoft. :-X

axilmar

Member #1,204

April 2001

Getting back to the original topic, there is not a simple GUI library for C. My emphasis on simplicity...I think the simplest interface for a C-based GUI is to use message passing, ala Allegro. The GTK object-orientation mechanism bolted onto C is horrible. In other words, a really simple C GUI would be something like this:

#include <gui.h>

int main() {
    Widget window = create_widget(&window_class, NULL,
        PROPERTY_TEXT, "a window",
        NULL);
    Widget button = create_widget(&button_class, NULL,
        PROPERTY_TEXT, "Click me",
        EVENT_CLICK, event(&window, MESSAGE_CLOSE, NULL),
        NULL);
    do_event_loop(window);
}

Making new widgets should be as simple as:

1enum MY_WIDGET_PROPERTIES {
2    PROPERTY_DATA = WIDGET_PROPERTY_LAST,
3    MY_WIDGET_PROPERTY_LAST
4};
5 
6 
7struct _MY_WIDGET {
8    _WIDGET widget;
9    int data;
10};
11 
12static int _my_widget_proc(_WIDGET *wgt, int msg, void *data) {
13    _MY_WIDGET *m = (_MY_WIDGET *)wgt;
14 
15    switch (msg) {
16        case MESSAGE_PAINT:
17        ...bla bla paint widget
18        break;
19 
20        case MESSAGE_SET_PROPERTY:
21        ...bla bla set property
22        break;
23    }
24 
25    etc
26}
27 
28WIDGET_CLASS my_widget_class = {
29    "my_widget",
30    sizeof(_MY_WIDGET),
31    _my_widget_proc
32};

This style of object orientation is much more preferrable than the style of GTK. Unfortunately there is no such cross platform GUI for C. The QNX's Photon GUI uses this design. Motif/Lesstif uses this design as well, but there are lots of horrible things in them.

ALGUI: c++11 A5 GUI library.

X-G

Member #856

December 2000

I can honestly say this is why I try to do as much of my GUI stuff as possible in Python with wxPython these days. It's so much more comfortable.

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BAF

Member #2,981

December 2002

What's wrong with the express versions of VC# or VC?

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HoHo

Member #4,534

April 2004

Officially QT doesn't support express versions, also they lack profiler, a thing I really need for my work.

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juvinious

Member #5,145

October 2004

Well it seems that might change

__________________________________________
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MiquelFire

Member #3,110

January 2003

Sweet! I'm so going to use that! Though I'll still use MinGW to make the release copy however.