CODEWITHSUNDEEP
c#winforms
Ofir Hadad
Ofir Hadad

Reputation: 1900

How to view through C# WinForm from another WinForm

I made a capture app in C# with winforms. I'm trying to see through a winform from another winform.

What I have now is this: screenshot

The black background with the opacity is winform number 1

And the blue rectangle with Transparent Fill is in winform number 2

I need a way to see the content of the website page through winform 1.

This is what i'm trying to accomplish : how is should be

I already tried to set the Fill Color to the Transparent Key Color like this:

This is TransparencyKey code for winform number 1:

this.TransparencyKey = System.Drawing.Color.Pink;

This is the code that draw the rectangle on winform number 2:

SolidBrush TransparentBrush = new SolidBrush(Color.Transparent);
Pen MyPen = new Pen(Color.Blue, 2);

private void ThePaint(object sender, System.Windows.Forms.PaintEventArgs e)
        {
            g.FillRectangle(TransparentBrush, CurrentTopLeft.X, CurrentTopLeft.Y, RectangleWidth, RectangleHeight);
            g.DrawRectangle(MyPen, CurrentTopLeft.X, CurrentTopLeft.Y, RectangleWidth, RectangleHeight);
            RectangleDrawn = true;
        }

Upvotes: 3

Views: 282

Answers (1)

Bertie
Bertie

Reputation: 733

You could try putting a panel on your form 2 and then setting it's colour to "Pink" - that way, it will be transparent through the form 2 to the web page behind. The only downside is that it does look odd if you have any controls on it. All this is achievable through the WinForm designer.

Upvotes: 1

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