Function InputBoxTimeout

Source/script2.cpp:5670–5717

VOID CALLBACK InputBoxTimeout(HWND hWnd, UINT uMsg, UINT idEvent, DWORD dwTime)
{
	// First check if the window has already been destroyed.  There are quite a few ways this can
	// happen, and in all of them we want to make sure not to do things such as calling EndDialog()
	// again or updating the output variable.  Reasons:
	// 1) The user has already pressed the OK or Cancel button (the timer isn't killed there because
	//    it relies on us doing this check here).  In this case, EndDialog() has already been called
	//    (with the proper result value) and the script's output variable has already been set.
	// 2) Even if we were to kill the timer when the user presses a button to dismiss the dialog,
	//    this IsWindow() check would still be needed here because TimerProc()'s are called via
	//    WM_TIMER messages, some of which might still be in our msg queue even after the timer
	//    has been killed.  In other words, split second timing issues may cause this TimerProc()
	//    to fire even if the timer were killed when the user dismissed the dialog.
	// UPDATE: For performance reasons, the timer is now killed when the user presses a button,
	// so case #1 is obsolete (but kept here for background/insight).
	if (IsWindow(hWnd))
	{
		// This is the element in the array that corresponds to the InputBox for which
		// this function has just been called.
		int target_index = idEvent - INPUTBOX_TIMER_ID_OFFSET;
		// Even though the dialog has timed out, we still want to write anything the user
		// had a chance to enter into the output var.  This is because it's conceivable that
		// someone might want a short timeout just to enter something quick and let the
		// timeout dismiss the dialog for them (i.e. so that they don't have to press enter
		// or a button:
		HWND hControl = GetDlgItem(hWnd, IDC_INPUTEDIT);
		if (hControl)
		{
			#undef INPUTBOX_VAR
			#define INPUTBOX_VAR (g_InputBox[target_index].output_var)
			VarSizeType space_needed = GetWindowTextLength(hControl) + 1;
			// Set up the var, enlarging it if necessary.  If the output_var is of type VAR_CLIPBOARD,
			// this call will set up the clipboard for writing:
			if (INPUTBOX_VAR->Assign(NULL, space_needed - 1) == OK)
			{
				// Write to the variable:
				INPUTBOX_VAR->Length() = (VarSizeType)GetWindowText(hControl
					, INPUTBOX_VAR->Contents(), space_needed);
				if (!INPUTBOX_VAR->Length())
					// There was no text to get or GetWindowText() failed.
					*INPUTBOX_VAR->Contents() = '\0';  // Safe because Assign() gave us a non-constant memory area.
				INPUTBOX_VAR->Close();  // In case it's the clipboard.
			}
		}
		EndDialog(hWnd, AHK_TIMEOUT);
	}
	KillTimer(hWnd, idEvent);
}