- 1). Launch Microsoft Visual Studio and open one of your Visual C++ Windows Forms projects. After the project loads, its forms appear in the Solution Explorer window.
- 2). Double-click your project's startup form to view the form in the Design window. Double-click the form's title. Visual Studio displays the form's Load method in the Code window. Paste the code shown below into that method:
Pen^ redPen = gcnew Pen(Color::Red);
Point startPoint = Point(20, 50);
Point endPoint = Point(200, 300);
e->Graphics->DrawLine( redPen, startPoint, endPoint);
The first statement creates a drawing pen and sets its color to red. The next two statements define the line's starting and ending points. These values are in pixels. The Point class shown in the second statement sets the starting point 20 pixels from the top of the form and 50 pixels from the form's left edge. The third statement places the line's ending point 200 pixels from the top of the form and 300 pixels from the form's left edge. The Drawline method draws your line. - 3). Press F5 to run your project. A red diagonal line appears on the form.
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