Is this "DetectHiddenWindows" bug?

[jetdone]

[Moderator's note: Topic moved from Bug Reports.]

I have the code to trigger OBS Studio shortcut key, but with DetectHiddenWindows , PostMessage is not working, is it DetectHiddenWindows bug?
My Code:

Code: Select all

DetectHiddenWindows True
id := WinGetID("ahk_exe obs64.exe")

Result := PostMessage(0x102, 0x79,,,"ahk_id" . id)
Sleep 250
Result := PostMessage(0x102, 0x78,,,"ahk_id" . id)

DetectHiddenWindows False

The above code cannot trigger the OBS Studio shortcut key.

And

Code: Select all

;DetectHiddenWindows True  <-- Remark this code
id := WinGetID("ahk_exe " . obs_exe)

Result := PostMessage(0x102, 0x79,,,"ahk_id" . id)
Sleep 250
Result := PostMessage(0x102, 0x78,,,"ahk_id" . id)

;DetectHiddenWindows False <-- Remark this code

The above code can trigger the shortcut key but only in window status is not in hidden

[Mod edit: [quote] tags replaced with [code][/code] tags.]

[just me]

Most likely there's another hidden window of obs64.exe found prior to the main window.

[Xtra]

WinGetID() is not an AHK built in function. Try WinExist() ?

[boiler]

WinGetID() is not an AHK built in function. Try WinExist() ?

It’s v2 code. Note PostMessage is used as a function as well.

[jetdone]

How to get "Main Window" rather than "Child Window"?

[just me]

I might have misunderstood your post, do you want to post WM_CHAR messages to a hidden window?

[lmstearn]

You mean:

Code: Select all

id := WinGetID("ahk_exe " . obs64_exe)

?
Sometimes Postmessage times out with hidden windows. SendMessage might be better.

[jetdone]

You mean:

Code: Select all

id := WinGetID("ahk_exe " . obs64_exe)

?
Sometimes Postmessage times out with hidden windows. SendMessage might be better.

Status: When Target Window is hidden
if I don't use "DetectHiddenWindows true", then id is blank.
if I used "DetectHiddenWindows true",
- then if I used "Result := PostMessage(0x102, 0x79,,"Qt5152QWindowIcon1","ahk_id" . id)" will return "Target Control not found".
- then if I used "Result := PostMessage(0x102, 0x79,,,"ahk_id" . id", then It does not trigger to the obs Studio hotkey.

Status: When Target Window is not hidden
if I don't use "DetectHiddenWindows true",
- then if I used "Result := PostMessage(0x102, 0x79,,"Qt5152QWindowIcon1","ahk_id" . id)" then it will work.
- then if I used "Result := PostMessage(0x102, 0x79,,,"ahk_id" . id", then it will work.

So I think there has a bug on DetectHiddenWindows.

[jetdone]

I might have misunderstood your post, do you want to post WM_CHAR messages to a hidden window?

Environment:
- obs studio (Freeware)
- obs studio setup hotkey "Ctrl+F1" to start record screen
- obs studio setup hotkey "Ctrl+F2" to stop record screen

My requirement as below:
1. make obs studio as a "background program", the AutoHotKey will submit "Ctrl+F1" and "Ctrl+F2" to stop recording and restart the recording in every hour.
2. the recording trigger key of the function of AutoHotkey script will not affect the normal operation of computer use.
3. The AutoHotkey script can keep to submit the hotkey either windows is hidden or not.
4. The AutoHotkey will detect obs studio is not running, and then will auto start the program.

[lmstearn]

A hidden window isn't visible at all. DetectHiddenWindows doesn't make it so, it just detects whether the window exists, so in most cases the window has to be made visible for anything to work. You could try things like increasing the power plan, thread/app priority or CPU etc., however.

[jetdone]

A hidden window isn't visible at all. DetectHiddenWindows doesn't make it so, it just detects whether the window exists, so in most cases the window has to be made visible for anything to work. You could try things like increasing the power plan, thread/app priority or CPU etc., however.

But I used WinSpy (A window detect tool) to post message, obs is also can react that submission. I think the window process is existed, although it is minimized to tray icon.