1.7 KiB
Misc
Windows Application Options
WndProcInterceptor
If this is set, the WndProc will be intercepted and the function will be called. This allows you to handle Windows messages directly. The function should have the following signature:
func(hwnd uintptr, msg uint32, wParam, lParam uintptr) (returnValue uintptr, shouldReturn)
The shouldReturn value should be set to true if the returnValue should be
returned by the main wndProc method. If it is set to false, the return value
will be ignored and the message will continue to be processed by the main
wndProc method.
Hide Window on Close + OnBeforeClose
In v2, there was the HideWindowOnClose flag to hide the window when it closed.
There was a logical overlap between this flag and the OnBeforeClose callback.
In v3, the HideWindowOnClose flag has been removed and the OnBeforeClose
callback has been renamed to ShouldClose. The ShouldClose callback is called
when the user attempts to close a window. If the callback returns true, the
window will close. If it returns false, the window will not close. This can be
used to hide the window instead of closing it.
Window Drag
In v2, the --wails-drag attribute was used to indicate that an element could
be used to drag the window. In v3, this has been replaced with
--webkit-app-region to be more in line with the way other frameworks handle
this. The --webkit-app-region attribute can be set to any of the following
values:
drag- The element can be used to drag the windowno-drag- The element cannot be used to drag the window
We would have ideally liked to use app-region, however this is not supported
by the getComputedStyle call on webkit on macOS.