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detecting if touch screen.
how would you detect if the device has a touch screen ? is there a touch screen api or sdk ? do all wireless phones have touch screen capabilities ? i understand that it is like programming for meeces .
is there a standard or is it every device has its own system of routines ?
If there was such a thing as a global standard for everything, life would be easy. But life isn't, so does that imply there does not exist such a thing?
OK, so enough of the cryptics. Obviously there is no such thing as a standard.
By "wireless phones," what exactly are you referring to? Mobiles? Not all mobiles have touch screens. Wireless phones connected to the landline? Obviously there are non-touch screen there, too.
How do we know if it has a touch screen or not? By asking the operating system, obviously. So do the devices all have the same OS? Highly unlikely considering mobiles run, what is it, at least 6 different operating systems, not including non-named ones?
So start by defining what wireless phones are, then giving specific models, then seeking information about those model(s).
you know i love the cryptic. i was asking if through a lang like c you could poll the smart phone if it had a touch screen no matter what os. or specific routines per os to use to determine if the smart phone has a touch screen. if you make an app would it work for all windows smart phones or if you make an app for mac would it work for all mac os smart phones.
thank you for the reply.
A lot of "smart phones" don't even support native C.Quote:
i was asking if through a lang like c you could poll the smart phone if it had a touch screen no matter what os.
Face it, the "smart phone" market is fragmented as ........; if you want to develop for multiple systems you'll need to invest a lot of time and effort or partner with a "port master".
Soma
Last time I checked, Apple phones do not support C (Obj-C is used), Windows Phones do not support C (C# is used), Symbian phones's API is in C++, so C is pretty much out of the question, and Android is written using Java. There's an NDK, but I don't know if C is supported in there. Older phones use Java. So C is pretty much out the window. Though I have heard of a code once, deploy everywhere solution, MooSync or something, I believe it was called. I've never tested it, though.
Obviously, if you target a range of phones with the same OS, then the changes that there might be such a solution goes way up, though you'd have to consult the doc for the OS you intend to develop for if there's a way to get that information. It really depends on the OS. Forget about trying to query the hardware directly.
rats! i had hoped the hardware could be poled directly. i have a partly completed proggie that i had hoped to market to the cell phone crowd. just a novelty program. not even sure it would sell.
thank you for the information.
Polling hardware is always bad. Don't do it (unless you absolutely have to, obviously).
The OS exposes APIs for this exact purpose.
Code:std::cout << "Do you have a touch screen? (1/0) " << std::endl;
std::cin >> has_touchscreen;
In all my experience with touch screens there has never been a clear defined method for querying. Usually you don't have to b/c touch screens are part of the device as in the case of mobile or part of your PC setup in the case of touch screens on PCs. I have worked a lot with touch screens on PCs in an embedded environment and most of the work was done by a driver that the C++ communicated with. There were several limitations such as what COM ports you could use, etc., etc. As well I noticed the touch screens I worked with were not nearly as good or responsive as the ones found in the iPad and other mobile devices. Perhaps this was a factor of manuf. since not many companies are investing in touch screens for the PC...although they are used more than one might think...primarily in commercial applications. Most touch screens on Windows bring the extra data in over a COM port and emulate mouse input and route message through the appropriate WM_ windows messages. I'm sure mobile devices are quite different since they support multiple touches and Windows does not.....yet.
ask the user if they have a touch screen. great idea. NOT ! and lets just forget to ask what kind of operating system they have. and if you get and answer from the user how do you know if it is an honest one ? and lets not forget to program for one type or another of operating system in the routine.Code:std::cout << "Do you have a touch screen? (1/0) " << std::endl;
std::cin >> has_touchscreen;
yea i pretty much gave up on this project due to too many different os .
Code:std::cout << "are you telling the truth? (1/0) " << std::endl;
std::cin >> telling_truth;
std::cout << "what type of operating system do you have ? ( win/mac/and/misc) " << std::endl;
std::cin >> type_os;
std::cout << "are you telling the truth? (1/0) " << std::endl;
std::cin >> telling_truth;
std::cout << "are you sure you are telling the truth? (1/0) " << std::endl;
std::cin >> sure_telling_truth;
Stop treating users like idiots. If they give an answer, obviously you should treat that as truth. Who the heck (save for hackers maybe) enters wrong information on purpose?Quote:
Originally Posted by kryptkat
Programmers. They're people too and sometimes they use their own programs. Sometimes they use them wrong even after coding them wrong, which is why it's a good idea to make as few assumptions about the data (i.e. input) as possible.Quote:
Originally Posted by Elysia
O_oQuote:
and lets not forget to program for one type or another of operating system in the routine
Okay.
Can you please tell us if you ever release a bit of software for "Android" telephones?
I only ask because I want to make sure I don't accidentally install anything you code.
Soma
Obviously you are right, but there is a limit to how extreme you can be. You must parse the input correctly in order to interpret it correctly. That's mostly what treat all input as evil means.Quote:
Originally Posted by whiteflags
Otherwise, what good is a question going to do? If you can't trust it, then don't ask it. It would be pointless.
Indeed, what good is a question where either possible answer is equally likely a lie. I guess we shouldn't treat users like idiots.
I think I'll like the post that makes the most sense here.
a luser that does not know the correct answer ? a luser that needs a third choice or more to meet their situation ? some miscreant looking to phuck up the system ? some cracker looking to steal the owners goodiez ?Quote:
Originally Posted by elysia
if you can poll the hardware to get the factual answer why poll the luser ? rolling on ground laughing and giggling back orpheus off . "poll the luser" i just realized how dirty alternate meanings that has. meow!! "poll the hardware" mechanicallitity like bestiality with machines. <wets fur>
yes i can tell you if i have ever released a bit of software for the "android" telephone . question answered fully and completely.Quote:
Originally Posted by phantomotap
installing software on purpose is much better . an should it have been coded by me is even better . at least for me monetarily meow. sure the programs i make have bugs at first and ester eggs and rats but when they are released the bugs have been worked out <most of them> .Quote:
I only ask because I want to make sure I don't accidentally install anything you code.
why would you choose an android ? it is not a real android ? it is not atonomouse . it is not self propelled or able to move on its own. you have to carry it everywhere . it does not have wheels or is a biped or quadraped . heck is not even quadrophonic or have a quadcore processor. it is no better than a quadriplegic . it is not amphibious or phibious or have tank tracks .
are you afraid i might code your touch screen go "oh gawd oh gawd ohhhh ggaaaawwwwdddd more oh gawd ah ohhhh ggggaaaawwwwdddd!!!!" ? when you touch it ? cuz you know i just might! meow!
pick on the way i code and i can pick on your choice of cellphone. even.
thank you for your suggestions
You need help.Quote:
if you can poll the hardware to get the factual answer why poll the luser ? rolling on ground laughing and giggling back orpheus off . "poll the luser" i just realized how dirty alternate meanings that has. meow!! "poll the hardware" mechanicallitity like bestiality with machines. <wets fur>
I think he's kidding...Quote:
std::cout << "are you telling the truth? (1/0) " << std::endl;
std::cin >> telling_truth;
std::cout << "are you sure you are telling the truth? (1/0) " << std::endl;
std::cin >> sure_telling_truth;
...never mind? o__O What the ........ are you talking about?Quote:
are you afraid i might code your touch screen go "oh gawd oh gawd ohhhh ggaaaawwwwdddd more oh gawd ah ohhhh ggggaaaawwwwdddd!!!!" ? when you touch it ? cuz you know i just might! meow!
Quote:
...never mind? o__O What the ........ are you talking about?Quote:
are you afraid i might code your touch screen go "oh gawd oh gawd ohhhh ggaaaawwwwdddd more oh gawd ah ohhhh ggggaaaawwwwdddd!!!!" ? when you touch it ? cuz you know i just might! meow!
touchscreen gag prank joke explained .
step 1.
acquire victims cell phone that has touch screen with out the victims knowledge
step 2.
install touchscreenscreamingorgasm.exe on victims touchscreen cell phone. again with out victims knowledge. victim will find out soon enough.
step 3.
execute touchscreenscreamingorgasm.exe . program will run silently in the back ground. for now. turn speaker volume all the way up.
step 4.
hand cell phone loaded with running joke back to victim.
step 5.
wait 5 minutes. during this time take victim to public crowded place. why should you be the only one to enjoy the victims surprise ?
step 6.
ask victim to look something up online. requires use of touchscreen.
at this point victim take out phone and touches touchscreen . the program touchscreenscreamingorgasm.exe already running detects the touch. then the program plays over all speakers the screaming orgasm "oh gawd oh gawd ohhhh ggaaaawwwwdddd more oh gawd ah ohhhh ggggaaaawwwwdddd!!!!" ! or if it happen to be a .mp3 sound file or .wav sound file i made it would sound more like this "meeeeoowwww ggaaaawwwwddeessss oh meeeeoowwww ggaaaawwwwddeessss!!!!" for the personal touch.
step 7.
watch crowd laugh and enjoy. < remember you asked for it >
how do you know that the os is running the correct part of the code designed for that os with out polling the hardware which os it is running ?
I simply cannot express my feelings at seeing this thread pop up again. They seem to lie somewhere between awkward amusement and morbid curiosity.
So to satisfy both extremes, I just have to ask:
Was the "touchscreenscreamingorgasm.exe" just an incidental joke aimed at phantomotap, or is this the actual application which prompted this thread in the first place?
O_o
I hope not; that's already my ringtone.
Soma
the program that prompted this thread was a graphics program not as good as turtle graphics. already your ring tone doh. should have known. but i would like to know how you got the "meeeeoowwww ggaaaawwwwddeessss oh meeeeoowwww ggaaaawwwwddeessss!!!!" ?
feather duster...
Soma
What would the C Board do without it's cacographic, gutter minded, cat crazed members?
meow!
Meh ... that's an alright picture ... but check out my Donovan playing "Race Car."
Attachment 11801
Just in case one of those cats care if they can use C on the iPhone, here is how you obtain MAC address of the device.
Source: stackoverflow.com.Code:#pragma mark -
#pragma mark Private Methods
// Return the local MAC addy
// Courtesy of FreeBSD hackers email list
// Accidentally munged during previous update. Fixed thanks to erica sadun & mlamb.
- (NSString *) macaddress{
int mib[6];
size_t len;
char *buf;
unsigned char *ptr;
struct if_msghdr *ifm;
struct sockaddr_dl *sdl;
mib[0] = CTL_NET;
mib[1] = AF_ROUTE;
mib[2] = 0;
mib[3] = AF_LINK;
mib[4] = NET_RT_IFLIST;
if ((mib[5] = if_nametoindex("en0")) == 0) {
printf("Error: if_nametoindex error\n");
return NULL;
}
if (sysctl(mib, 6, NULL, &len, NULL, 0) < 0) {
printf("Error: sysctl, take 1\n");
return NULL;
}
if ((buf = malloc(len)) == NULL) {
printf("Could not allocate memory. error!\n");
return NULL;
}
if (sysctl(mib, 6, buf, &len, NULL, 0) < 0) {
printf("Error: sysctl, take 2");
return NULL;
}
ifm = (struct if_msghdr *)buf;
sdl = (struct sockaddr_dl *)(ifm + 1);
ptr = (unsigned char *)LLADDR(sdl);
NSString *outstring = [NSString stringWithFormat:@"%02X:%02X:%02X:%02X:%02X:%02X",
*ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), *(ptr+5)];
free(buf);
return outstring;
}
The UI part of the code needs to be in ObjC as the UI frameworks are all in ObjC. The invisible parts of the application can use crypto, compression, image manipulation, networking, file/database manipulation libraries like ZLIB for example as they are, pure C, no problem. You can call C functions from ObjC methods and vice versa since ObjC is just a superset of C.
O_o
I'm all for bragging I suppose... but this is clearly about bragging about cats now!
Soma
Cat owners ... we're a strange bunch. You kind of have to be to rationalize loving a tiny dangerous (albeit cute) predator with a bad attitude.
@phantomotap: That "feather duster" comment you made above cracks me up anew each time I see it!
Tiny?Quote:
You kind of have to be to rationalize loving a tiny dangerous (albeit cute) predator with a bad attitude.
I love the big ones as much as the little ones; they just will not let me cuddle with the big ones at the zoo.
^_^Quote:
That "feather duster" comment you made above cracks me up anew each time I see it!
Soma
Me neither =(Quote:
I love the big ones as much as the little ones; they just will not let me cuddle with the big ones at the zoo.
youtube
Yeah, it's all fun and games until somebody get's eaten.Quote:
Originally Posted by Matticus
That's just their version of fun and games. They have a right to enjoy themselves, too!Quote:
Originally Posted by Yarin
1o1 kitty p0rn! nice.Quote:
Originally Posted by phantomotap