I need to open Google Maps of certain address from C program. Such as

::ShellExecute(..."http://maps.google.com/maps?q=ADDRESS",...)

But I'm not sure about other parameters. Except parameter "q=", we can
see many other parameters from google maps link address, like
"spn","sll","hl"...

Which parameters are necessary? Or have any document about detailed
parameters?

yyzhu,

This is against Google's TOS, so you may not get any answers here.

-John

http://maps.huge.info

Sorry I'm a newcomer here, also newcomer to Google Maps. But what's the
meaning of abr. "TOS"? I know my question is not fit for
Google-Maps-API's
territory, but seems no other place to ask such a question.

TOS: Terms of Service.

By using the link the way your intending, that constitutes a geocoder
and that's strictly forbidden. You can use the links on the maps as
they are generated by the Google mapping program, but you cannot
automate the process without violating the rules. Google states in the
TOS that violaters will be shut off. Personally, I wouldn't want to
awake a sleeping giant...

-John

http://maps.huge.info

It sounds like what he would be doing would be ok to me. All he is
doing is providing a link to Google's site, right?

I do not mean to "geocoder" anything. I just want to know whether I can
display
google maps of certain ADDRESS by such link:
"http://maps.google.com/maps?q=ADDRESS".
or are there any other parameters necessary except "q=ADDRESS"?

(And I don't use this link inside a web page, I'd like to open browser
and execute it from C program. But the usage cares nothing about the
link itself all)

I just tried it with only the q parameter and it worked fine. The other
stuff is unessesary.

If you just pass the ?q=ADDRESS parameter you end up with what someone
would see if they typed that address into the search box on the
maps.google.com webpage. The other parameters give you more control over
what gets displayed.

Here are some of the parameters. There may well be many more

ll      Latitude and longitude of the centre point (note the order!)
spn     Approximate lat/long span.
        The zoom level will be adjusted to fit.
hl      Sets the language. &hl=fr forces the associated text to be in
        French instead of using the user's default language.
t       Sets the map type. &t=k for satellite, &t=h for hybrid
saddr   Source address for driving directions
daddr   Destination address for driving directions
num     Maximum number of matches to display
start   Skips the nearest (start-1) matches

Use the following for a simple address, all the other stuff is not
needed

maps.google.com/maps?oi=map&q=Address1, City, State Zip

Just add http:// to the front

First of all thanks a lot for everybody's answer.

I try this
http://maps.google.com/maps?oi=map&am­p;q=10%20market%20st,%20san%20francisco,%20CA%2094111
It doesn't work. Why "oi=map&am­p" is needed? I'd like to know more
about the
parameter.

/maps.google.com/maps?q=1600+pennsylvania+ave,+washington,+dc

add http:// to this and you get George's vacation home (lol) Put +
instead of spaces inbetween the elements.

Why? Ask Google, but the previous code works in my GoldMine
application. The hard part is that as Google progresses in its maps
development, somethings will stop working, but the previous code I
probably forgot to take all the GoldMine related code out.