Python library to display Windows 10 Toast Notifications
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(IMPORTANT) Fix __init__.py Error "WNDPROC return value cannot be converted to LRESULT TypeError: WPARAM is simple, so must be an int object (got NoneType)" #118
ERROR: WNDPROC return value cannot be converted to LRESULT TypeError: WPARAM is simple, so must be an int object (got NoneType)
FIX: The error "WNDPROC return value cannot be converted to LRESULT TypeError: WPARAM is simple, so must be an int object (got NoneType)" is occurring because the on_destroy method is not returning any value explicitly, and as a result, it returns None by default. However, in this case, on_destroy should return an integer value (LRESULT). To fix the issue, you can add return 0 at the end of the on_destroy method to explicitly return 0.
Here's the modified on_destroy method:
def on_destroy(self, hwnd, msg, wparam, lparam):
"""Clean after notification ended.
:hwnd:
:msg:
:wparam:
:lparam:
"""
nid = (self.hwnd, 0)
Shell_NotifyIcon(NIM_DELETE, nid)
PostQuitMessage(0)
return 0 # Explicitly return 0 to fix the error
With this change, the on_destroy method will now return an integer value (LRESULT) as expected, and the error should be resolved.
ERROR: WNDPROC return value cannot be converted to LRESULT TypeError: WPARAM is simple, so must be an int object (got NoneType)
FIX: The error "WNDPROC return value cannot be converted to LRESULT TypeError: WPARAM is simple, so must be an int object (got NoneType)" is occurring because the
on_destroy
method is not returning any value explicitly, and as a result, it returnsNone
by default. However, in this case,on_destroy
should return an integer value (LRESULT
). To fix the issue, you can addreturn 0
at the end of theon_destroy
method to explicitly return 0.Here's the modified
on_destroy
method:With this change, the
on_destroy
method will now return an integer value (LRESULT
) as expected, and the error should be resolved.