Quick view panel: Clicking on a Lister plugin didn't mark the panel as active

[AkulaBig]

For me, Imagine plugin still works fine to view .fli files with RC3

Indeed, everything works on a clean build! I will look for the problem myself.

[AkulaBig]

RC3 will be released later today, you will then see what I mean.

When updating one file at a time, it turned out that the problem was due to the TOTALCMD64.EXE file. In TC 32-bit everything works fine. What setting can affect 64-bit TC specifically?

[AkulaBig]

Oh, my problem has already been reported in a bug:
The settings in lister for "Define view by file type" (ModeByfileType=1) no longer works in Lister in TC 11.57rc3 64bit - The 32bit version still works.

[ghisler(Author)]

Now it's clear. TC1by1 began to show focus. TCModPlug and TCAlReaderExt still do not show focus.

Can you try sending WM_COMMAND with high word of LPARAM set to 0xFFF8 when your plugin gets the focus?

[Fla$her]

TC1by1 began to show focus.

Very unstable. It activates on the first file, but when switching to others, it doesn't. Sometimes closing and switching with Alt+Tab from other windows helps, but not always.

[AkulaBig]

Now it's clear. TC1by1 began to show focus. TCModPlug and TCAlReaderExt still do not show focus.

Can you try sending WM_COMMAND with high word of LPARAM set to 0xFFF8 when your plugin gets the focus?

Hm. nothing happens:
[img]https://s1.hostingkartinok.com/uploads/thumbs/2026/04/b50df44259f6dd896ebbdabc031964d9.png[/img]

[AkulaBig]

TC1by1 began to show focus.

Very unstable. It activates on the first file, but when switching to others, it doesn't. Sometimes closing and switching with Alt+Tab from other windows helps, but not always.

Interestingly, it works stably for me. Maybe some program is stealing your focus?

[AkulaBig]

I quickly tried not to hide the header, that is, make 1by1 a descendant. No, no effect.

[Fla$her]

Interestingly, it works stably for me.

On both bitnesses?

Maybe some program is stealing your focus?

This wouldn't correspond to the initial conditions when another panel is active.

[ghisler(Author)]

Hm. nothing happens:

The high word of lparam must be set to 0xFFF8, so send 0xFFF80000 instead.

[AkulaBig]

No changes Am I selecting 1by1WndClass correctly?
[img]https://s1.hostingkartinok.com/uploads/thumbs/2026/04/bc6fb15c9c335637d5d4936507259de2.png[/img]

[ghisler(Author)]

You need to send WM_COMMAND to the Lister window, that's the one you receive in ListLoad.

[AkulaBig]

You need to send WM_COMMAND to the Lister window, that's the one you receive in ListLoad.

It turns out that you need to check the Lister window that appears with F3? After all, Lister is not accessible via Ctrl+Q? Let me describe my actions step by step:
1. Press F3, the TC1by1 plugin starts.
2. Using the Spy program, I capture the TLister window:
[img]https://s1.hostingkartinok.com/uploads/thumbs/2026/04/a9ee240a9119be80e9672fc9969edc5c.png[/img]
3. I enter WM_COMMAND in LPARAM FFF80000:
[img]https://s1.hostingkartinok.com/uploads/thumbs/2026/04/2a8f4b058176ed22424f496ce9766608.png[/img]
Result 0
What am I doing wrong?

[ghisler(Author)]

No, Ctrl+Q also opens a Lister window! It's just embedded in Total Commander.

Lister ignores WM_COMMAND with LPARAM=FFF80000 when started with F3. Have you checked what happens when you send it after opening Ctrl+Q?

[AkulaBig]

No, Ctrl+Q also opens a Lister window! It's just embedded in Total Commander.

Lister ignores WM_COMMAND with LPARAM=FFF80000 when started with F3. Have you checked what happens when you send it after opening Ctrl+Q?

I checked it on TCSumatraPDF, uLister using CtrL+Q. Nothing happens. TC1by1 Lister does not.