标题:怎么用c语言初始化d3d (主要就是怎么用C模拟COM虚函数)
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怎么用c语言初始化d3d (主要就是怎么用C模拟COM虚函数)
我问了好几个群都不知道
有推荐去学C++
抓狂啊
 以下是DirectX 9.0 里的例子  可惜是C++的
#include <d3d9.h>
#pragma warning( disable : 4996 )
#include <strsafe.h>
#pragma warning( default : 4996 )


LPDIRECT3D9         g_pD3D = NULL;
LPDIRECT3DDEVICE9   g_pd3dDevice = NULL;

HRESULT InitD3D( HWND hWnd )
{
    if( NULL == ( g_pD3D = Direct3DCreate9( D3D_SDK_VERSION ) ) )
        return E_FAIL;

    D3DPRESENT_PARAMETERS d3dpp;
    ZeroMemory( &d3dpp, sizeof( d3dpp ) );
    d3dpp.Windowed = TRUE;
    d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;
    d3dpp.BackBufferFormat = D3DFMT_UNKNOWN;

    if( FAILED( g_pD3D->CreateDevice( D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, hWnd,
                                      D3DCREATE_SOFTWARE_VERTEXPROCESSING,
                                      &d3dpp, &g_pd3dDevice ) ) )
    {
        return E_FAIL;
    }

    return S_OK;
}



VOID Cleanup()
{
    if( g_pd3dDevice != NULL )
        g_pd3dDevice->Release();

    if( g_pD3D != NULL )
        g_pD3D->Release();
}


VOID Render()
{
    if( NULL == g_pd3dDevice )
        return;

    g_pd3dDevice->Clear( 0, NULL, D3DCLEAR_TARGET, D3DCOLOR_XRGB( 0, 0, 255 ), 1.0f, 0 );
    if( SUCCEEDED( g_pd3dDevice->BeginScene() ) )
    {
        g_pd3dDevice->EndScene();
    }

    g_pd3dDevice->Present( NULL, NULL, NULL, NULL );
}



LRESULT WINAPI MsgProc( HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam )
{
    switch( msg )
    {
        case WM_DESTROY:
            Cleanup();
            PostQuitMessage( 0 );
            return 0;

        case WM_PAINT:
            Render();
            ValidateRect( hWnd, NULL );
            return 0;
    }

    return DefWindowProc( hWnd, msg, wParam, lParam );
}


INT WINAPI wWinMain( HINSTANCE hInst, HINSTANCE, LPWSTR, INT )
{
    WNDCLASSEX wc =
    {
        sizeof( WNDCLASSEX ), CS_CLASSDC, MsgProc, 0L, 0L,
        GetModuleHandle( NULL ), NULL, NULL, NULL, NULL,
        L"D3D Tutorial", NULL
    };
    RegisterClassEx( &wc );

    HWND hWnd = CreateWindow( L"D3D Tutorial", L"D3D Tutorial 01: CreateDevice",
                              WS_OVERLAPPEDWINDOW, 100, 100, 300, 300,
                              NULL, NULL, wc.hInstance, NULL );

    if( SUCCEEDED( InitD3D( hWnd ) ) )
    {
        ShowWindow( hWnd, SW_SHOWDEFAULT );
        UpdateWindow( hWnd );

        MSG msg;
        while( GetMessage( &msg, NULL, 0, 0 ) )
        {
            TranslateMessage( &msg );
            DispatchMessage( &msg );
        }
    }

    UnregisterClass( L"D3D Tutorial", wc.hInstance );
    return 0;
}

给个c调用com的例子就感激不尽了
搜索更多相关主题的帖子: c语言 COM 函数 模拟 
2010-07-06 17:58



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