SDL and Apple Shortcuts

Apprentice

Posts: 6
Joined: 2012.01

Post: #1

Jan 10, 2012 — 08:44 PM

Does anyone know how to hide(Cmd-H) an SDL program? And is there a way to do this without using Objective-C? Can I add some code to SDLMain.m that will do this for me.

Thanks,
Mark

OneSadCookie

Luminary

Posts: 5,142
Joined: 2002.04

Post: #2

Jan 10, 2012 — 09:53 PM

if you add to SDLMain.m

Code:

void HideMySDLApp(void)

{

    [NSApp hide:nil];

}

and then when you detect a command-H,

Code:

extern void HideMySDLApp(void);

HideMySDLApp();

that should work without requiring ObjC to appear in your own code.

mvaughn

Apprentice

Posts: 6
Joined: 2012.01

Post: #3

Jan 11, 2012 — 08:32 PM

Thanks for helping me out with this one, but I get an error with the code.

Undefined symbols for architecture x86_64:
"HideMySDLApp()"

It is an Apple Mach-O Linker (id) Error with HideMySDLApp()

OneSadCookie

Luminary

Posts: 5,142
Joined: 2002.04

Post: #4

Jan 11, 2012 — 09:42 PM

If you're writing C++ you need to redeclare it

Code:

extern "C" HideMySDLApp();

mvaughn

Apprentice

Posts: 6
Joined: 2012.01

Post: #5

Jan 11, 2012 — 09:50 PM

A little confused. Where do I put this line of code? I tried replacing the previous line of code that had extern in it and that did not work.

mvaughn

Apprentice

Posts: 6
Joined: 2012.01

Post: #6

Jan 12, 2012 — 08:36 AM

Ok, I figured it out. extern "C" void HideMySDLApp(void); must be outside of the function.

Thanks OneSadCookie.

Zorg

Member

Posts: 31
Joined: 2010.01

Post: #7

Jan 12, 2012 — 04:52 PM

That's not a great solution and it doesn't fix command-Q, command-W, command-M, etc.

I found this solution on a mailing list a while ago, which is what I've been using:

In "@implementation SDLApplication", add the method:

Code:

- (void)sendEvent:(NSEvent *)anEvent

{

    if (NSKeyDown == [anEvent type] || NSKeyUp == [anEvent type])

    {

        if ([anEvent modifierFlags] & NSCommandKeyMask) 

            [super sendEvent:anEvent];

    }

    else

    { 

        [super sendEvent:anEvent];

    }

}

And in the applicationDidFinishLaunching: method in SDLMain's implementation, add a function call setenv("SDL_ENABLEAPPEVENTS", "1", 1) before SDL_main(...) function is called.