DaniWeb Forum Index > Software Development > C++

C++ RSS

DirectX Question - Windowed vs Fullscreen Mode

Please support our C++ advertiser: Intel Parallel Studio Home

Thread Solved

•

Join Date: Sep 2008

Posts: 16

Reputation: Dinomike1000 is an unknown quantity at this point

Solved Threads: 0

Dinomike1000 Dinomike1000 is offline

Offline

Newbie Poster

DirectX Question - Windowed vs Fullscreen Mode

Dec 22nd, 2008

I'm writing an application with Directx 9. Where I start the application in full screen mode, the image fills to fullscreen and then immediately reverts into a regular window. There aren't any problems when I run the application in windowed mode from the start.

I was wondering if anyone has any ideas as to what may be causing this.

Some things to note are that I am running the debug version of directx and I am doing everything on one monitor. The fullscreen mode problem still occurs if I "Run without debugging"

Thanks,

Mike

•

Join Date: Apr 2008

Posts: 671

Reputation: Freaky_Chris is a jewel in the rough

Solved Threads: 113

Freaky_Chris Freaky_Chris is offline

Offline

Practically a Master Poster

Re: DirectX Question - Windowed vs Fullscreen Mode

Dec 22nd, 2008

What exactly do you mean, 'the image'. It could be a whole host of reasons.

Chris

Knowledge is power -- But experience is everything

•

Join Date: Sep 2008

Posts: 16

Reputation: Dinomike1000 is an unknown quantity at this point

Solved Threads: 0

Dinomike1000 Dinomike1000 is offline

Offline

Newbie Poster

Re: DirectX Question - Windowed vs Fullscreen Mode

Dec 22nd, 2008

Yay I figured it out. What was happening was that the graphics device was setup to go into fullscreen mode; after filling up the screen with the background (ie fullscreen), the window immediately switched back to a regular window with a menu at the top.

I'm still testing some of the functions, so I was doing everything in the Init() cycle. I was closing the graphics interface/device at the end of the Init() cycle. This had no effect on windowed mode, but I guess if the device is closed while in fullscreen mode and the application is still running, then the fullscreen window changes back to a regular window.

Last edited by Dinomike1000; Dec 22nd, 2008 at 6:18 pm.

•

Join Date: Apr 2008

Posts: 671

Reputation: Freaky_Chris is a jewel in the rough

Solved Threads: 113

Freaky_Chris Freaky_Chris is offline

Offline

Practically a Master Poster

Re: DirectX Question - Windowed vs Fullscreen Mode

Dec 22nd, 2008

Have you made sure that your Window is actually in full screen, with borders etc removed? My guess is you are making your drawing space 3D but not the actual window.

You window should have properties that resemble the following.

 Help with Code Tags 
 C++ Syntax (Toggle Plain Text) 
hWnd = CreateWindowEx(NULL, L"WindowClass", L"Basic Window",
                          WS_EX_TOPMOST | WS_POPUP, 0, 0, SCREEN_WIDTH, SCREEN_HEIGHT,
                          NULL, NULL, hInstance, NULL);
hWnd = CreateWindowEx(NULL, L"WindowClass", L"Basic Window",
                          WS_EX_TOPMOST | WS_POPUP, 0, 0, SCREEN_WIDTH, SCREEN_HEIGHT,
                          NULL, NULL, hInstance, NULL);

WS_EX_TOPMOST, making sure it is on top. Above start bar etc. WS_POPUP removes the borders etc, SCREEN WIDTH & SCREEN_HEIGHT are self explanatory. basically the resolution.

Chris

Last edited by Freaky_Chris; Dec 22nd, 2008 at 7:02 pm.

Knowledge is power -- But experience is everything