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Comments (3)

changkun avatar changkun commented on September 4, 2024

Good point. Is there any specific use case for 32-bit windows? I am 99% sure that this package didn't consider 32-bit windows.

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c17abab avatar c17abab commented on September 4, 2024

Good point. Is there any specific use case for 32-bit windows? I am 99% sure that this package didn't consider 32-bit windows.

Found the cause of the problem, the user32.dll function openClipboard need a parameter(A handle to the window to be associated with the open clipboard. If this parameter is NULL, the open clipboard is associated with the current task). So maybe you need to get the window handle first, or set the parameter to 0:
https://learn.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-openclipboard

eg:

	// Here you need to get the handle of the clipboard window first
	getOpenClipboardWindow := user32.MustFindProc("GetOpenClipboardWindow")
	for {
		r, _, _ = getOpenClipboardWindow.Call()
                // set the parameter to 0 is also ok
		r, _, _ = openClipboard.Call(r)
		if r == 0 {
			continue
		}
		break
	}
	defer closeClipboard.Call()

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changkun avatar changkun commented on September 4, 2024

Thanks for the investigation. As you already investigated the issue, any PR would be very welcome 👍

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