DirectX 基础学习系列6 字体

DIRECTX9自带ID3DXFONT类

内部调用GDI的接口，效率一般，但能够处理一些复杂的字体

HRESULT D3DXCreateFontIndirect( LPDIRECT3DDEVICE9 pDevice, CONST D3DXFONT_DESC * pDesc, LPD3DXFONT * ppFont);

typedef struct D3DXFONT_DESC {

    INT Height;
    UINT Width;
    UINT Weight;
    UINT MipLevels;
    BOOL Italic;
    BYTE CharSet;
    BYTE OutputPrecision;
    BYTE Quality;
    BYTE PitchAndFamily;
    TCHAR FaceName[LF_FACESIZE];
} D3DXFONT_DESC, *LPD3DXFONT_DESC;

2绘制

INT ID3DXFont::DrawText(LPD3DXSPRITE pSprite,  LPCTSTR pString,  INT Count,  

LPRECT pRect,  DWORD Format,  
D3DCOLOR Color);

实例：

D3DXFONT_DESC lf;
    ZeroMemory(&lf, sizeof(D3DXFONT_DESC));

    lf.Height         = 25;    // in logical units
    lf.Width          = 12;    // in logical units 
    lf.Weight         = 500;   // boldness, range 0(light) - 1000(bold)
    lf.Italic         = false;    
    lf.CharSet        = DEFAULT_CHARSET;                 
    lf.Quality        = 0;           
    lf.PitchAndFamily = 0;           
    strcpy(lf.FaceName, "Times New Roman"); // font style

    //
    // Create an ID3DXFont based on 'lf'.
    //

    if(FAILED(D3DXCreateFontIndirect(Device, &lf, &Font)))
    {
        ::MessageBox(0, "D3DXCreateFontIndirect() - FAILED", 0, 0);
        ::PostQuitMessage(0);
    }
        Device->BeginScene();

        RECT rect = {0, 0, Width, Height};
        Font->DrawText(
            0,
            FPSString, 
            -1, // size of string or -1 indicates null terminating string
            &rect,            // rectangle text is to be formatted to in windows coords
            DT_TOP | DT_LEFT, // draw in the top left corner of the viewport
            0xff000000);      // black text

        Device->EndScene();

2采用DIRECT3D绘制方式：

可以采用D3D绘图的方式实现更多的效果