In a desktop Qt application, I have some GPS coordinates that I\'d like to show on a map. My plan is to construct an URL with the coordinates and let a web browser and Googl
Throwing parameters at maps.google.com only gets you one point.
As dusoft says, you could use Google Static maps.
Or, if you require dynamic maps, you could write your own public web page that uses Google Maps API and accepts a long list of parameters. Use your own web page in exactly the same way that you were intending to use maps.google.com web page, except that you get to design what you want the parameters to look like.
Perhaps something like this.