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From: Webbiz on 3 Nov 2009 14:13
Usually, when I want to create a vertical line that can be moved
across a PicBox, I simply add a Line control onto the PicBox during
design time.

However, I'm opening up PicBoxes during Run-time from a PicBox control
array, loading and unloading them.

When I load a new picbox, it won't have a line control within. I'm not
sure how I should do this. I'd like a line control to be contained in
each Picbox loaded and unloaded, but I believe the only way to do this
is to create a User Control, correct?

If I don't create a UC but want to stick to my current array of
Picboxes, how might I simulate a vertical line that moves across the
picbox as the mouse moves?

Now I know that I can draw a line using the picbox.line method. But as
I move the mouse, I'll need to delete the previous line so it makes it
look like the vertical line is moving. How would I do this, and do it
without erasing anything that the line has drawn over (whatever was
underneath at the time the line was drawn over it)?

With the line control, that was not a problem. Just give the
coordinates and it would move there without hassle.

Suggestions?

Thanks!

Webbiz
From: Jeff Johnson on 3 Nov 2009 14:47
"Webbiz" <nospam(a)forme.thanks.com> wrote in message
news:brv0f5pd1ngeek612n7rie827287f1168h(a)4ax.com...

> If I don't create a UC but want to stick to my current array of
> Picboxes, how might I simulate a vertical line that moves across the
> picbox as the mouse moves?

Quick question: are you trying to create a splitter?


From: Mike Williams on 3 Nov 2009 15:23
"Webbiz" <nospam(a)forme.thanks.com> wrote in message
news:brv0f5pd1ngeek612n7rie827287f1168h(a)4ax.com...

> Usually, when I want to create a vertical line that can be moved
> across a PicBox, I simply add a Line control onto the PicBox
> during design time. However, I'm opening up PicBoxes during
> Run-time from a PicBox control array, loading and unloading
> them. When I load a new picbox, it won't have a line control
> within . . . I'd like a line control to be contained in each Picbox
> loaded and unloaded, but I believe the only way to do this
> is to create a User Control? If I don't create a UC but want to
> stick to my current array of Picboxes, how might I simulate a
> vertical line that moves across the picbox as the mouse moves?
> Now I know that I can draw a line using the picbox.line method.
> But as I move the mouse, I'll need to delete the previous line so
> it makes it look like the vertical line is moving. How would I do
> this, and do it without erasing anything that the line has drawn
> over . . .

Drawing the line in such a way is fairly easy, but if you would prefer to
stick with the simplicity of a Line Control then you can do it that way
instead. Simply start off with a Line Control with an Index of zero (in the
same way as I presume you are starting off with a PictureBox with an Index
of zero) and then load another element of the Line Control array in the same
way as you are already loading another element of the PictureBox array. For
example:

Load Picture1(n)
Load Line1(n)
Set Line1(n).Container = Picture1(n)
Picture1(n).Move 0, 0 ' or wherever you want it
Line1(n).X1 = Picture1(n).ScaleWidth / 2
Line1(n).X2 = Line1(n).X1
Line1(n).Y1 = 0
Line1(n).Y2 = Picture1(n).ScaleHeight
Picture1(n).Visible = True
Line1(n).Visible = True

Mike


From: Webbiz on 3 Nov 2009 16:08
On Tue, 3 Nov 2009 14:47:10 -0500, "Jeff Johnson" <i.get(a)enough.spam>
wrote:

>"Webbiz" <nospam(a)forme.thanks.com> wrote in message
>news:brv0f5pd1ngeek612n7rie827287f1168h(a)4ax.com...
>
>> If I don't create a UC but want to stick to my current array of
>> Picboxes, how might I simulate a vertical line that moves across the
>> picbox as the mouse moves?
>
>Quick question: are you trying to create a splitter?
>

You mean, like for splitting an audio or video time line?

No. I'm actually trying to create a thin-line vertical bar that is
used to return the information that is below that bar, such as on a
stock chart.

As you move the mouse, the bar moves. This allows for precise pointing
to the area of the chart you want information on.

:-)
Webbiz

From: Webbiz on 3 Nov 2009 16:12
On Tue, 3 Nov 2009 20:23:29 -0000, "Mike Williams"
<Mike(a)WhiskyAndCoke.com> wrote:

>
>"Webbiz" <nospam(a)forme.thanks.com> wrote in message
>news:brv0f5pd1ngeek612n7rie827287f1168h(a)4ax.com...
>
>> Usually, when I want to create a vertical line that can be moved
>> across a PicBox, I simply add a Line control onto the PicBox
>> during design time. However, I'm opening up PicBoxes during
>> Run-time from a PicBox control array, loading and unloading
>> them. When I load a new picbox, it won't have a line control
>> within . . . I'd like a line control to be contained in each Picbox
>> loaded and unloaded, but I believe the only way to do this
>> is to create a User Control? If I don't create a UC but want to
>> stick to my current array of Picboxes, how might I simulate a
>> vertical line that moves across the picbox as the mouse moves?
>> Now I know that I can draw a line using the picbox.line method.
>> But as I move the mouse, I'll need to delete the previous line so
>> it makes it look like the vertical line is moving. How would I do
>> this, and do it without erasing anything that the line has drawn
>> over . . .
>
>Drawing the line in such a way is fairly easy, but if you would prefer to
>stick with the simplicity of a Line Control then you can do it that way
>instead. Simply start off with a Line Control with an Index of zero (in the
>same way as I presume you are starting off with a PictureBox with an Index
>of zero) and then load another element of the Line Control array in the same
>way as you are already loading another element of the PictureBox array. For
>example:
>
>Load Picture1(n)
>Load Line1(n)
>Set Line1(n).Container = Picture1(n)
>Picture1(n).Move 0, 0 ' or wherever you want it
>Line1(n).X1 = Picture1(n).ScaleWidth / 2
>Line1(n).X2 = Line1(n).X1
>Line1(n).Y1 = 0
>Line1(n).Y2 = Picture1(n).ScaleHeight
>Picture1(n).Visible = True
>Line1(n).Visible = True
>
>Mike
>


Oh, that's right. You can assign a control's container. Never done it
before, but it's pretty straightforward.

Before I do this, which approach would you use Mike? I know you're a
graphics genius with VB6, and perhaps you might make a suggestion for
performance sake?

If this info is needed to make such a suggestion, note that the
maximum picboxes open at any time is 4.

Thanks.

Webbiz
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