Render Output File Dialog

Hey,
When I click on the "Render Setup -> Render Output -> Files" button, it opens a dialog where I can choose the image file type for my rendering. I also get a "Setup" button, where I can set my image quality and stuff like bit depth and compression for .tif / .png and so on.
Is there any way to get this dialog via script? I use "getSaveFileName" right now, with handwritten types like so

types:"All Files|*.*|TIF Image File(*.tif)|*.tif|JPEG File(*.jpg)|*.jpg|BMP Image File(*.bmp)|*.bmp

But it lacks the option to adjust image quality :(

Cheers