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It takes a few seconds for WindowTop to switch a window to dark mode #482
Description
My guess is that WindowTop is polling for new Windows to open. Would it be possible to react to Windows events instead so windows go to dark mode immediately?
Something like:
HWINEVENTHOOK hook;
void CALLBACK WinEventProc(
HWINEVENTHOOK hWinEventHook,
DWORD event,
HWND hwnd,
LONG idObject,
LONG idChild,
DWORD idEventThread,
DWORD dwmsEventTime)
{
if (event == EVENT_OBJECT_CREATE && idObject == OBJID_WINDOW)
{
// A window was created
}
}
hook = SetWinEventHook(
EVENT_OBJECT_CREATE,
EVENT_OBJECT_CREATE,
NULL,
WinEventProc,
0,
0,
WINEVENT_OUTOFCONTEXT);
Activity
thorn-cell commentedon Apr 22, 2026
should start an open source windowtop
gileli121 commentedon Apr 23, 2026
Hello, I am aware about this option with SetWindowHook
It just may be dangerous. such change is what I was planning as part of #369 (comment)
I added it to #389 a while ago and will probably get to it soon, but it comes with the risk of bugs and needs plenty of testing. Even after that, dark mode is still expected to start a bit slowly, since this part is written in C++ and may take some time to load.
gileli121 commentedon May 6, 2026
I’m aware of it.
This guy told this in 5:50:
https://youtu.be/UXd8MfTJQVg?si=WAQMaK3IaGHhjW-r&t=350
He wrote the official Task Manager in Windows 95, so he knows what he’s talking about. I’ll get into it the next time I work on it. However, testing such a change will take time, so if I do it, that version will be marked as beta for a relatively long period.
Anyway, for most computers, the app uses no more than 2% CPU, though it still spends a lot of time sleeping. Still, I agree it could be optimized further.
I’m currently working on a memory (RAM) optimization issue that seems especially relevant for ARM64-based systems, as noted in a Reddit thread. It’s probably even more significant considering the recent crisis in RAM chip prices, which have increased sharply.
This one is an easy fix. I hope that after fixing it, I can move on to working on this optimization.