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Beginner Help needed please

Started by ShayneC Oct 27, 2005 at 7:04 PM 3 replies 1k views

Original Post

Oct 27, 2005 at 7:04 PM

I am new to Dx but am trying in vain to learn it, I have a selection of books and been reading tutorials. I have a problem with my code and cannot see what the problem is, can anyone help? BOOL CApplication::RenderFrame() { if ( !m_bIsActive ) { return TRUE; } m_graphics.Clear( D3DCOLOR_ARGB( 0, 0, 0, 0 ) ); m_graphics.BeginScene(); /* My code to put a sprite on the screen */ HRESULT hResult; IDirect3DSurface9* surface; hResult = CreateOffscreenPlainSurface( 800, 600, D3DFMT_X8R8G8B8, D3DPOOL_DEFAULT, &surface, NULL); if (FAILED(hResult)) return NULL; hResult = D3DXLoadSurfaceFromFile( surface, NULL, NULL, "coffee.jpg", NULL, D3DX_DEFAULT, 0, NULL ); if ( FAILED( hResult ) ) return NULL; m_graphics.EndScene(); m_graphics.Present(); return TRUE; } This is the error i keep getting error C3861: 'CreateOffscreenPlainSurface': identifier not found, even with argument-dependent lookup All I want to do is get a bitmap onto the screen.

DadleFish

Oct 27, 2005 at 7:28 PM

CreateOffscreenPlainSurface is a function which belongs to the D3D Device, and you're calling it as if it was a global function. You should be calling -

m_pDevice->CreateOffscreenPlainSurface(...)

Or something like that, depending on how do you call your D3D device.

CHollman82

Oct 27, 2005 at 8:08 PM

Yeah, what he said. You need to have an IDirect3D9 object. CreateOffscreenPlainSurface is a member function of the IDirect3D9 class, so you would have something like this:

IDirect3D9 d3d;
...a bunch of init stuff...
d3d->CreateOffscreenPlainSurface(etc...);

Skeleton_V@T

Oct 27, 2005 at 8:18 PM

ShayneC: You probably want to put the initialization code for [surface] somewhere before the CApplication::RenderFrame (). Invoking D3DXLoadSurfaceFromFile () each frame is not necessary. But if this is a code snippet, that's okay, just something to remind you.

ShayneC

Author

ShayneC

Oct 28, 2005 at 4:12 AM

Thanks to everyone that has replied, I see my Mistake now. If it was laid out properly in the book I would not of made it and I will have to more the surface creation part of the code.

Once again thanks to all.

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