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Linking Errors are Killing Me

Started by nickwinters Jun 28, 2004 at 2:07 PM 4 replies 450+ views

Original Post

Jun 28, 2004 at 2:07 PM

I have the following block of code:

D3DXMATRIXA16 matWorld;
    D3DXMatrixIdentity(&matWorld);
    device->SetTransform(D3DTS_WORLD, &matWorld);

    D3DXVECTOR3 vEyePt(0.0f, 1.0f, -3.0f);
    D3DXVECTOR3 vLookatPt(0.0f, 0.0f, 0.0f);
    D3DXVECTOR3 vUpVec(0.0f, 1.0f, 0.0f);
    D3DXMATRIXA16 matView;
    D3DXMatrixLookAtLH(&matView, &vEyePt, &vLookatPt, &vUpVec);
    device->SetTransform(D3DTS_VIEW, &matView);

    D3DXMATRIXA16 matProj;
    D3DXMatrixPerspectiveFovLH(&matProj, D3DX_PI/4, 1.0f, 1.0f, 100.0f);
    device->SetTransform(D3DTS_PROJECTION, &matProj);

This is the only place I'm using LookAtLH and PerspectiveFovLH. I've include in this classes .h file. For some reason, I get the following linking errors: Renderer.obj : error LNK2001: unresolved external symbol _D3DXMatrixPerspectiveFovLH@20 Renderer.obj : error LNK2001: unresolved external symbol _D3DXMatrixLookAtLH@16 Do I need to include some other .h files? Thanks. -Nick

Saandman

Jun 28, 2004 at 2:12 PM

Have you linked your project with the accompaning d3dx9 lib?

ms291052

Jun 28, 2004 at 3:30 PM

At the top of your main.cpp (or winmain.cpp or whatever) put the following:

#pragma comment(lib, "d3d9.lib")#pragma comment(lib, "d3dx9.lib")

Promit

Jun 28, 2004 at 4:50 PM

Alternately, add those in your project settings, under the Linker tab.

Or, simply locate the lib files and add them to your project (same way you add a source file).

nickwinters

Jun 28, 2004 at 4:58 PM

d'oh! Thanks.

rohitgonsalves

Jun 28, 2004 at 9:37 PM

Otherwise simple thing;

If you create your project from directx 9 apllication wizard,
The wizard always puts lib path and makes appropriate settings.
So no worry and you will never get the linking errors as these.

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