Stocks software, mouse_over

[philippe]

Hello,

I'm wondering how developpers dealing with Stocks
software, manage to allow user to visualize 'stock datas'
when moving mouse over a 'barchart' or a 'average
line' ???

Is it possible to achieve this in C# ?
If so, what's the 'secret' behind ? (detection
collision ???)

I'm eager to understand !

Philippe, FRANCE

[Dmitriy Lapshin [C# / .NET MVP]]

Hi Philippe,

It really depends on which control is used to display bar charts. I think
some controls allow for specifying hint text for every bar on the chart, and
the text will than be displayed when the mouse pointer is over the bar.

Even if you draw bar charts with plain GDI+, you can employ the ToolTip
common control (requires P/Invoke calls to API level functions in this
context) to display stock information tips. You should be also easily able
to detect the "mouse over" event, as far as I remember it's one of the
standard events exposed by the Control class.

--
Dmitriy Lapshin [C# / .NET MVP]
X-Unity Test Studio
http://x-unity.miik.com.ua/teststudio.aspx
Bring the power of unit testing to VS .NET IDE

"philippe" <je****@club-internet.fr> wrote in message
news:09****************************@phx.gbl...

Hello,

I'm wondering how developpers dealing with Stocks
software, manage to allow user to visualize 'stock datas'
when moving mouse over a 'barchart' or a 'average
line' ???

Is it possible to achieve this in C# ?
If so, what's the 'secret' behind ? (detection
collision ???)

I'm eager to understand !

Philippe, FRANCE

[Philippe]

Thank you for replying Dmitriy,

Your idea of GDI+ and tooltip sounds nice...

Would you kindly give me a quick code example.

Thank you so much -)))

Philippe

-----Original Message-----
Hi Philippe,

It really depends on which control is used to display bar charts. I thinksome controls allow for specifying hint text for every bar on the chart, andthe text will than be displayed when the mouse pointer is over the bar.
Even if you draw bar charts with plain GDI+, you can employ the ToolTipcommon control (requires P/Invoke calls to API level functions in thiscontext) to display stock information tips. You should be also easily ableto detect the "mouse over" event, as far as I remember it's one of thestandard events exposed by the Control class.

--
Dmitriy Lapshin [C# / .NET MVP]
X-Unity Test Studio
http://x-unity.miik.com.ua/teststudio.aspx
Bring the power of unit testing to VS .NET IDE

"philippe" <je****@club-internet.fr> wrote in message
news:09****************************@phx.gbl...

Hello,

I'm wondering how developpers dealing with Stocks
software, manage to allow user to visualize 'stock datas' when moving mouse over a 'barchart' or a 'average
line' ???

Is it possible to achieve this in C# ?
If so, what's the 'secret' behind ? (detection
collision ???)

I'm eager to understand !

Philippe, FRANCE

.

[Dmitriy Lapshin [C# / .NET MVP]]

You're welcome Philippe, but unfortunately I don't have any code examples at
hand. Try searching the Internet and the archived content of
microsoft.dotnet.* newsgroups available at http://groups.google.com.

--
Dmitriy Lapshin [C# / .NET MVP]
X-Unity Test Studio
http://x-unity.miik.com.ua/teststudio.aspx
Bring the power of unit testing to VS .NET IDE

"Philippe" <an*******@discussions.microsoft.com> wrote in message
news:02****************************@phx.gbl...

Thank you for replying Dmitriy,

Your idea of GDI+ and tooltip sounds nice...

Would you kindly give me a quick code example.

Thank you so much -)))

Philippe

-----Original Message-----
Hi Philippe,

It really depends on which control is used to display

bar charts. I think

some controls allow for specifying hint text for every

bar on the chart, and

the text will than be displayed when the mouse pointer

is over the bar.

Even if you draw bar charts with plain GDI+, you can

employ the ToolTip

common control (requires P/Invoke calls to API level

functions in this

context) to display stock information tips. You should

be also easily able

to detect the "mouse over" event, as far as I remember

it's one of the

standard events exposed by the Control class.

--
Dmitriy Lapshin [C# / .NET MVP]
X-Unity Test Studio
http://x-unity.miik.com.ua/teststudio.aspx
Bring the power of unit testing to VS .NET IDE

"philippe" <je****@club-internet.fr> wrote in message
news:09****************************@phx.gbl...

Hello,

I'm wondering how developpers dealing with Stocks
software, manage to allow user to visualize 'stock datas' when moving mouse over a 'barchart' or a 'average
line' ???

Is it possible to achieve this in C# ?
If so, what's the 'secret' behind ? (detection
collision ???)

I'm eager to understand !

Philippe, FRANCE

.

Dmitriy,

Thank you anyway for your kind answers

Philippe

-----Original Message-----
You're welcome Philippe, but unfortunately I don't have any code examples athand. Try searching the Internet and the archived content ofmicrosoft.dotnet.* newsgroups available at http://groups.google.com.
--
Dmitriy Lapshin [C# / .NET MVP]
X-Unity Test Studio
http://x-unity.miik.com.ua/teststudio.aspx
Bring the power of unit testing to VS .NET IDE

"Philippe" <an*******@discussions.microsoft.com> wrote in messagenews:02****************************@phx.gbl...

Thank you for replying Dmitriy,

Your idea of GDI+ and tooltip sounds nice...

Would you kindly give me a quick code example.

Thank you so much -)))

Philippe

>-----Original Message-----
>Hi Philippe,
>
>It really depends on which control is used to display

bar charts. I think

>some controls allow for specifying hint text for every

bar on the chart, and

>the text will than be displayed when the mouse pointer

is over the bar.

>
>Even if you draw bar charts with plain GDI+, you can

employ the ToolTip

>common control (requires P/Invoke calls to API level

functions in this

>context) to display stock information tips. You should

be also easily able

>to detect the "mouse over" event, as far as I remember

it's one of the

>standard events exposed by the Control class.
>
>--
>Dmitriy Lapshin [C# / .NET MVP]
>X-Unity Test Studio
>http://x-unity.miik.com.ua/teststudio.aspx
>Bring the power of unit testing to VS .NET IDE
>
>"philippe" <je****@club-internet.fr> wrote in message
>news:09****************************@phx.gbl...
>> Hello,
>>
>> I'm wondering how developpers dealing with Stocks
>> software, manage to allow user to visualize 'stock

datas'

>> when moving mouse over a 'barchart' or a 'average
>> line' ???
>>
>> Is it possible to achieve this in C# ?
>> If so, what's the 'secret' behind ? (detection
>> collision ???)
>>
>> I'm eager to understand !
>>
>> Philippe, FRANCE
>
>.
>

.