topmost over another app

[master661]

im trying to create app that will be above a full screened d3d app (win32 app), any ideas how this can be done? because so far setting the windows position to top most doesnt work.

[MrDoomMaster]

I don't think this can be done. When a D3D application goes full screen, it completely takes over the display adapter and creates new display settings. D3D also ensures that windows cannot alter the display when it has permission of the display adapter. Your best bet is to either create a window system in your game, or simply use windowed mode with the WS_POPUP style, and set it to the size of the screen. Making your application into windowed mode with WS_POPUP emulates full screen mode, although it is not really.