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WindowUtils (class)

All methods of this class are static. Many of the Windows-only functions here are utilized in the PyWin32 example.

Table of contents:

• Methods
  • OnSetFocus (Win)
  • OnSize (Win)
  • OnEraseBackground (Win)
  • SetTitle (Win)
  • SetIcon (Win)
  • GetParentHandle
  • IsWindowHandle
  • gtk_plug_new (Linux)
  • gtk_widget_show (Linux)
  • InstallX11ErrorHandlers (Linux)

Methods

OnSetFocus (Win)

Windows-only. This method processes WM_SETFOCUS message which is sent to a window after it has gained the keyboard focus.

OnSize (Win)

Windows-only. This method processes WM_SIZE message which is sent to a window after its size has changed.

OnEraseBackground (Win)

Windows-only. This method processes WM_ERASEBKGND message which is sent when the window background must be erased (for example, when a window is resized).

SetTitle (Win)

Windows-only. Set the title for the main window or popup window. The default implementation of DisplayHandler.OnTitleChange() calls this method to set the title for a window.

SetIcon (Win)

Windows-only. Set the icon for the popup window. The default implementation of DisplayHandler.OnTitleChange() calls this method to set the icon for a window that wasn't created explicitily (for example a popup window), the icon is inherited from the parent window. Icon parameter accepts only "inherit", you cannot pass here a path to an icon (currently not implemented).

GetParentHandle

Get a parent handle.

On Linux and Mac this method always returns 0. @TODO.

IsWindowHandle

Check whether this is a valid window handle.

On Linux and Mac this method always returns True. @TODO.

gtk_plug_new (Linux)

Linux-only.

gtk_widget_show (Linux)

Linux-only.

InstallX11ErrorHandlers (Linux)

Linux-only. Install xlib error handlers so that the application won't be terminated on non-fatal errors. Must be done after initializing GTK.

CEF Python calls this function automatically during a call to Initialize, so there is no more need to call it manually in most cases.