bool setDialogShowState(int state)
Returns false/zero if the dialog window was previously hidden, true/non-zero otherwise.
Can be used to show, hide, minimize and maximize the filter dialog window. The values for the state parameter are equal to those used in the [ShowWindow function documented at MSDN].
This function is a lightweight wrapper around the Windows Win32 ShowWindow function, documented here: https://msdn.microsoft.com/en-us/library/windows/desktop/ms633548(v=vs.85).aspx
// Hide the dialog window setDialogShowState(0); // SW_HIDE = 0 // Show the dialog window again setDialogShowState(5); // SW_SHOW = 5