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My laptop wont run my d3d app in windowed mode?

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Hi, i just got a laptop, and im trying to run my program in windowed mode on it, but it keeps crashing, is there some setting here below that i must change for it to work on a latop(it works fine on normal comp) d3dpp.SwapEffect =D3DSWAPEFFECT_FLIP; d3dpp.BackBufferFormat = D3DFMT_A8R8G8B8; d3dpp.EnableAutoDepthStencil = true; d3dpp.AutoDepthStencilFormat = D3DFMT_D16; d3dpp.FullScreen_RefreshRateInHz = D3DPRESENT_RATE_DEFAULT; d3dpp.PresentationInterval = D3DPRESENT_INTERVAL_DEFAULT ; d3dpp.BackBufferCount = 1;

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It is likely the laptop doesn''t support some feature or format that you are using and the result is a crash. Check the return value of every call and maybe you will find out where it is failing.

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You should not be letting it crash. You should catch the error. Also, the debug runtime should tell you what isn''t working.

d3dpp.BackBufferFormat = D3DFMT_A8R8G8B8;
This will not work with a variety of cards, you should be testing modes to see if they''re supported.


Stay Casual,

Ken
Drunken Hyena

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Also be aware that strange video cards (old ones, laptops) sometimes can''t provide hardware acceleration at a specific color depth. Therefore you ought to detect this and either

a) let the app actually change the wanted color format
or
b) let the app change to fullscreen if no hw support is available for windowed mode
or
c) both a) and b)

Look into the d3d sample framework which enumerates displaymodes and takes in account most of the problems (doesn''t autoswitch fullscreen though)

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ok thanks all, im sure ill be able to resolve it now,

i guess i should put all the error catching stuff back into my dx wrapper

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