Question

I’ll try to keep this as simple as possible.

A button created in a Windows Forms Application looks like this:

If I create a form manually, buttons I create will look like this:

I looked thoroughly through the Windows Forms Application and found no code that changes the visual style of buttons.

Is there any simple explanation as to why this is happening?

Thanks in advance.

Answer 1

You will need to call the EnableVisualStyles method, which is by default called in the Main method of the Program class prior to calling Application.Run (when you create a Windows Forms project, with the auto-generated code).

This method enables visual styles for the application. Visual styles
are the colors, fonts, and other visual elements that form an
operating system theme. Controls will draw with visual styles if the
control and the operating system support it. To have an effect,
EnableVisualStyles() must be called before creating any controls in
the application; typically, EnableVisualStyles() is the first line in
the Main function. A separate manifest is not required to enable
visual styles when calling EnableVisualStyles().