Custom Query (152 matches)

Reported by guest, 5 years ago.

GDK has a function window_foreign_new that creates a gdk window object for any existing X window. It is available in the C and python bindings; I would like to use this function in gtk2hs.

(I am trying to write a screensaver using Cairo and gtk2hs; It seems that you need to draw on the root window or any arbitrary window in order to work.)

Reported by guest, 5 years ago.

The following function: pango_parse_markup () isn't implemented. If anyone tells me how to do it, I'm willing to do it myself (never really touched the FFI before)

Reported by guest, 5 years ago.

None of the enumerations in Gdk.Enums are instances of Eq, which makes it cumbersome to check for certain events. For example, I wanted to keep track of the fullscreen state of a window with the following code:

ref <- newIORef False
onWindowState win $ \WindowState { eventWindowState = state } -> do
    writeIORef ref (WindowStateFullscreen `elem` state)
    return True

However, writing the code this way requires an Eq instance; workarounds require either manually defining one or using pattern matching, which is cumbersome because state is a list of WindowState values.

It would be trivial to add deriving (Eq) to these enumerations (and also Read/Show, for debugging purposes).