CODEWITHSUNDEEP
windowswinforms
user1306322
user1306322

Reputation: 8721

Is there a non-overlapped window? If so, what does it look like?

I've been reading some info on window creation styles and found the term "overlapped window" being used for basically all windows I can think of. The word "overlap" seems misused to me, since in the context of the window itself it isn't overlapped with anything. And I couldn't find any information about how to create non-overlapped windows, so I can't instantiate one and see the difference.

Is there such a thing as non-overlapped window? If there is, please post a comparison image.

Upvotes: 1

Views: 78

Answers (1)

Reza Aghaei
Reza Aghaei

Reputation: 125227

Based on MSDN documentations there are 5 different Window Types and based on descriptions, Child Windows and Message-Only windows are not overlapped.

Here is a summary about different window types:

  • Overlapped Windows

    A top-level window that has a title bar, border, and client area; it is meant to serve as an application's main window. It can also have a window menu, minimize and maximize buttons, and scroll bars. An overlapped window used as a main window typically includes all of these components.

  • Pop-up Windows

    A pop-up window is a special type of overlapped window used for dialog boxes, message boxes, and other temporary windows that appear outside an application's main window.

  • Child Windows

    A child window is confined to the client area of its parent window. An application typically uses child windows to divide the client area of a parent window into functional areas. A child window must have a parent window. The parent window can be an overlapped window, a pop-up window, or even another child window.

  • Layered Windows

    Using a layered window can significantly improve performance and visual effects for a window that has a complex shape, animates its shape, or wishes to use alpha blending effects. The system automatically composes and repaints layered windows and the windows of underlying applications.

  • Message-Only Windows

    A message-only window enables you to send and receive messages. It is not visible, has no z-order, cannot be enumerated, and does not receive broadcast messages. The window simply dispatches messages.

Upvotes: 2

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