WP_INTERACTIVE

The user can place the window

1

WP_SCREENCENTERED

Centered on the screen

2

WP_SCREENRELATIVE

Relative to the upper left corner of the screen

3

WP_PARENTRELATIVE

Relative to the upper left corner of the calling frame

4

WP_PARENTCENTERED

Centered relative to the calling frame

5

WP_FLOATING

Placed for minimal overlap with parent 

6

WP_PRIMARYSCREENCENTERED

Centered on the primary monitor

7

WP_PRIMARYSCREENRELATIVE

Relative to the upper left corner of the primary monitor

8

WP_VIRTUALSCREENCENTERED

Centered on the virtual screen

9

WP_VIRTUALSCREENRELATIVE

Relative to the upper left corner of the virtual screen

10