Re: Implement an interface in my form - C# Discussion Boards

N a v a n e e t h6-Oct-08 16:06

N a v a n e e t h

6-Oct-08 16:06

Forms are normal classes. So you can implement an interface as usual.

Navaneeth

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Richard Blythe6-Oct-08 16:27

Richard Blythe

6-Oct-08 16:27

You may be having trouble because your form class is already "implementing" the Form class. What you need to do is enter a , after the Form declaration and type your interface name there. Example:
partial class myForm : Form, myInterface
{}

Cheers!
Richard Blythe

I've used up all my sick days, so today I'm calling in dead.

J4amieC6-Oct-08 22:28

J4amieC

6-Oct-08 22:28

Richard Blythe wrote:
form class is already "implementing" the Form class

Nope its inheriting. You inherit base clases you implement interfaces.

Drawing rectangles - with the mouse.

Richard Blythe7-Oct-08 3:12

Richard Blythe

7-Oct-08 3:12

Thanks for the correction.

I've used up all my sick days, so today I'm calling in dead.

dennycrane6-Oct-08 13:44

6-Oct-08 13:44

What would be the easiest way of drawing rectangles or other shapes onto a picture box using the mouse?
Just like in MS Paint.

Pedram Behroozi6-Oct-08 13:52

6-Oct-08 13:52

this[^] might help

While (true) { Human.isLearnable = true; }

Pedram Behroozi6-Oct-08 14:04

6-Oct-08 14:04

No, not suitable for your question but it's obvious!

While (true) { Human.isLearnable = true; }

Pedram Behroozi6-Oct-08 13:53

6-Oct-08 13:53

Or maybe this[^]

While (true) { Human.isLearnable = true; }

Pedram Behroozi6-Oct-08 13:55

6-Oct-08 13:55

Hey, make your choice[^] Wink | ;)

While (true) { Human.isLearnable = true; }

dennycrane6-Oct-08 13:56

6-Oct-08 13:56

I looked at both of the links, seems it could be easier.

Pedram Behroozi6-Oct-08 14:03

6-Oct-08 14:03

dennycrane wrote:
I looked at both of the links

Did you do that right now? You're amazing! OMG | :OMG:

dennycrane wrote:
seems it could be easier.

What do you mean? Do you have any idea?

While (true) { Human.isLearnable = true; }

dennycrane6-Oct-08 21:34

6-Oct-08 21:34

Yes, very simple. Click on a button then on a picturebox and a rectangle would appear.

Pedram Behroozi7-Oct-08 6:29

7-Oct-08 6:29

Well, it's too simple. I thought you said "like MS Paint" (actually you did!). However for your reason you should call PictureBox_Paint in Button_Click (be careful of parameters) and use e.Graphics.DrawRectangle(Pen pen, int x, int y, int width, int height) (+2 overload(s)) to draw a rectangle.
Or you have something else to say? Sniff | :^)

While (true) { Human.isLearnable = true; }

dan!sh 6-Oct-08 23:26

dan!sh

6-Oct-08 23:26

I did this using MouseDown, MouseMove, MouseUp and Paint event. And ofcourse a graphics object.

"If you had to identify, in one word, the reason why the human race has not achieved, and never will achieve, its full potential, that word would be 'meetings'." - Dave Barry

dennycrane7-Oct-08 2:15

7-Oct-08 2:15

could you give some examples?

dan!sh 7-Oct-08 3:24

dan!sh

7-Oct-08 3:24

Its too big of a code to share. Actually its all mixed with lot of other code that I use for drawing other stuff. I can tell bit of logic though.
1. Grab the coordinates at MouseDown
2. On MouseMove draw rectangles calculating the height and width using the graphics object.
3. On MouseUp get the point to find final hieght and width and keep them for using in Paint event.
4. Redraw final rectangle in Paint event.

You can also place a PictureBox identical to final rectangle in case you want to have some events for the rectangle.

"If you had to identify, in one word, the reason why the human race has not achieved, and never will achieve, its full potential, that word would be 'meetings'." - Dave Barry

Giorgi Dalakishvili7-Oct-08 0:13

Giorgi Dalakishvili

7-Oct-08 0:13

See this: Draw with Mouse[^]

Giorgi Dalakishvili

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dennycrane7-Oct-08 2:15