Irregular shaped buttons

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Hello everyone,

I am looking for a method to check if my cursor is currently over a specific draw so it can be highlighted.

Let's say this is may shape:

  ___________
 /          /
/__________/

As you can obviously see, there's a bit of spare space (buttons are usually straight boxes).
How can I exclude the spare space?

Just so you know, I draw the lines using a GraphicsPath.

Posted 20-Apr-11 1:53am

Groulien

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4 solutions

Solution 4

All other answers are not quite correct. They only help to define visible area or process mouse events in a special way. The ultimate solution is this:

Use Windows API SetWindowRgn on a button HWND. It will shape a buttons Windows to a region in all aspects, not just visual, but the mouse event will be automatically routed only if they happen within the specified region. See http://msdn.microsoft.com/en-us/library/dd145102(v=vs.85).aspx[^].

—SA

Posted 20-Apr-11 13:01pm

Sergey Alexandrovich Kryukov

Updated 20-Apr-11 13:03pm

v2

Solution 2

Perhaps make a Panel, do your own drawing there and then listen for event Control.MouseEnter[^]

In the MouseEnter event, use Cursor.Position[^] to validate if the cursor is inside your own drawing. If it is, change the color.

Posted 20-Apr-11 2:14am

Kim Togo

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This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Manfred Rudolf Bihy · Accepted Answer · 2011-04-20T02:12:00

Solution 1

Check if the cursors coordinates (as a Point type) lie within in that region.

C#

Pont point = ...; //Set mouse coordinates here.
GraphicsPath path = ...; // Create your path here.
if(path.IsVisible(point)) ... // Check if mouse coordinates are within path

Regards,

-MRB

Posted 20-Apr-11 2:12am

Manfred Rudolf Bihy

Updated 20-Apr-11 2:24am

v3

Comments

#realJSOP 20-Apr-11 8:14am

5 - Proposed as answer

Kim Togo 20-Apr-11 8:35am

My 5. OP is using GraphicsPath to draw the lines and IsVisible returns true or false that indicates whether the specified point is contained within this GraphicsPath.

Sergey Alexandrovich Kryukov 20-Apr-11 19:05pm

Not 100% what is needed. It's more simple, too.
Please see my answer.
--SA

Henry Minute · Accepted Answer · 2011-04-20T02:17:00

Solution 3

As Manfred has said, convert your Path to a Region and use the Region.IsVisible(Point)[^] method.

Posted 20-Apr-11 2:17am

Henry Minute

Comments

Manfred Rudolf Bihy 20-Apr-11 8:25am

I changed my mind when I found out that GraphicsPath also has the IsVisible(Point point) method. Anyways my 5+!

Henry Minute 20-Apr-11 8:28am

Good spot! +5

BobJanova 20-Apr-11 9:51am

You can also assign this region to the Control.Region property so that mouse events are only picked up for the control within the region, painting is clipped to it etc.

Groulien 20-Apr-11 17:50pm

Worked, thanks a lot!

Sergey Alexandrovich Kryukov 20-Apr-11 19:04pm

Yes, but not 100% what you want.
Please see my answer.
--SA

murathankocan 30-Jan-13 15:06pm

there is a better one at
http://www.youtube.com/watch?v=K_JzL4kzCoE

Irregular shaped buttons

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Irregular shaped buttons

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