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Autodesk Multimedia Forum · Software Dev. Kits

#C++ & aaplay.dll

6 messages in this thread

#181751From: Keith JonesJul 24, 1995 11:10 AM

Hi All We are having problems trying to use the FULL SCREEN option of the aaplay.dll. If the FULL SCREEN option is on and you start your screen saver, mouse clicks are recognised but mouse moves are not. Any Advise ? T.I.A Geoff Coope Borland C++ V4.x AAPLAY.DLL Windows enviroment

#181775From: Brian Rudolph [Adesk]Jul 24, 1995 1:08 PM

I answered you in e-mail. -b

#181922From: Paul HempstockJul 25, 1995 3:58 AM

How come? I would have been interested in the reply to that aswell! Paul.

#181960From: Brian Rudolph [Adesk]Jul 25, 1995 10:39 AM

<<How come? I would have been interested in the reply to that aswell!>> Simply because he sent me an e-mail as well, and that was what I answered first. Since you are interested, here was my answer: << when you invoke the FULL SCREEN option in the Windows player, the AAPLAY.DLL is making calls directly to the video card BIOS, bypassing the Windows driver entirely. As a result other Windows events that involve the display, such as mouse events, are ignored. I am not aware of a workaround for this, however removal of the AAVGA.DLL might give you an option you can work with. -Brian>>

#181974From: Paul HempstockJul 25, 1995 11:28 AM

Well I can shed a bit more light myself now… Use SetWindowsHookEx to install a system wide hook for the MouseProc and trap any WM_MOUSEMOVE messages. Send them to your ScreenSaver main window and it will terminate in the usual way with a mouse movement. Then unhook your MouseProc. Unfortunately, if you are using a password protected screensaver you will find that this completely hangs your machine when Windows tries to create the password dialog box before you have changed video modes and before you have removed your hooks. I don't know what to do about this yet. Deleting AAVGA.DLL doesn't really help because then you are no longer playing full screen anyway. Does AAVGA.DLL kill *all* other system activity? I mean will comms be interrupted if AAVGA.DLL is playing something fullscreen? Paul.

#182181From: Brian Rudolph [Adesk]Jul 26, 1995 10:32 AM

<<Does AAVGA.DLL kill *all* other system activity? I mean will comms be interrupted if AAVGA.DLL is playing something fullscreen?>> The AAVGA.DLL should only intercept or interrupt any function that makes a call to the Windows display driver. -Brian