[Help] DrawText with D3D8

[GameLover]

How do I draw text using D3D8? I've tried this, but I got errors.
d3dfont8.h

//-----------------------------------------------------------------------------
// File: D3DFont.h
// Desc: Texture-based font class
// Copyright (c) 1999-2001 Microsoft Corporation. All rights reserved.
//-----------------------------------------------------------------------------
#ifndef D3DFONT_H
#define D3DFONT_H
#include <tchar.h>
#include <D3D8.h>


// Font creation flags
#define D3DFONT_BOLD 0x0001
#define D3DFONT_ITALIC 0x0002
#define D3DFONT_ZENABLE 0x0004

// Font rendering flags
#define D3DFONT_CENTERED 0x0001
#define D3DFONT_TWOSIDED 0x0002
#define D3DFONT_FILTERED 0x0004
#define D3DFONT_RIGHT 0x0008 // non standard
#define D3DFONT_SHADOW 0x0010 // non standard



//-----------------------------------------------------------------------------
// Name: class CD3DFont
// Desc: Texture-based font class for doing text in a 3D scene.
//-----------------------------------------------------------------------------
class CD3DFont
{
TCHAR m_strFontName[80]; // Font properties
DWORD m_dwFontHeight;
DWORD m_dwFontFlags;

LPDIRECT3DDEVICE8 m_pd3dDevice; // A D3DDevice used for rendering
LPDIRECT3DTEXTURE8 m_pTexture; // The d3d texture for this font
LPDIRECT3DVERTEXBUFFER8 m_pVB; // VertexBuffer for rendering text
DWORD m_dwTexWidth; // Texture dimensions
DWORD m_dwTexHeight;
FLOAT m_fTextScale;
FLOAT m_fTexCoords[128-32][4];
DWORD m_dwSpacing; // Character pixel spacing per side

// Stateblocks for setting and restoring render states
DWORD m_dwSavedStateBlock;
DWORD m_dwDrawTextStateBlock;

public:
// 2D and 3D text drawing functions
HRESULT DrawText( FLOAT x, FLOAT y, DWORD dwColor,
TCHAR* strText, DWORD dwFlags=0L );

// Function to get extent of text
HRESULT GetTextExtent( TCHAR* strText, SIZE* pSize );

// Initializing and destroying device-dependent objects
HRESULT InitDeviceObjects( LPDIRECT3DDEVICE8 pd3dDevice );
HRESULT RestoreDeviceObjects();
HRESULT InvalidateDeviceObjects();
HRESULT DeleteDeviceObjects();

// Constructor / destructor
CD3DFont( TCHAR* strFontName, DWORD dwHeight, DWORD dwFlags=0L );
~CD3DFont();
};




#endif

#include "d3dfont8.h"

CD3DFont *pFont=NULL;

pFont->DrawText(150,200,D3DCOLOR_ARGB(255,255,0,0),"Text",0);

Errors:

Error    1    error LNK2019: unresolved external symbol "public: long __thiscall CD3DFont::RestoreDeviceObjects(void)" (?RestoreDeviceObjects@CD3DFont@@QAEJXZ) referenced in function "void __cdecl PostReset(struct IDirect3DDevice8 *)" (?PostReset@@YAXPAUIDirect3DDevice8@@@Z)    Main.obj
Error    2    error LNK2019: unresolved external symbol "public: long __thiscall CD3DFont::InitDeviceObjects(struct IDirect3DDevice8 *)" (?InitDeviceObjects@CD3DFont@@QAEJPAUIDirect3DDevice8@@@Z) referenced in function "void __cdecl PostReset(struct IDirect3DDevice8 *)" (?PostReset@@YAXPAUIDirect3DDevice8@@@Z)    Main.obj
Error    3    error LNK2019: unresolved external symbol "public: __thiscall CD3DFont::CD3DFont(char *,unsigned long,unsigned long)" (??0CD3DFont@@QAE@PADKK@Z) referenced in function "void __cdecl PostReset(struct IDirect3DDevice8 *)" (?PostReset@@YAXPAUIDirect3DDevice8@@@Z)    Main.obj
Error    4    error LNK2019: unresolved external symbol "public: long __thiscall CD3DFont::DrawTextA(float,float,unsigned long,char *,unsigned long)" (?DrawTextA@CD3DFont@@QAEJMMKPADK@Z) referenced in function "unsigned long __stdcall HackThread(void *)" (?HackThread@@YGKPAX@Z)    Main.obj
Error    5    error LNK2019: unresolved external symbol "public: long __thiscall CD3DFont::DeleteDeviceObjects(void)" (?DeleteDeviceObjects@CD3DFont@@QAEJXZ) referenced in function "void __cdecl PreReset(struct IDirect3DDevice8 *)" (?PreReset@@YAXPAUIDirect3DDevice8@@@Z)    Main.obj
Error    6    error LNK2019: unresolved external symbol "public: long __thiscall CD3DFont::InvalidateDeviceObjects(void)" (?InvalidateDeviceObjects@CD3DFont@@QAEJXZ) referenced in function "void __cdecl PreReset(struct IDirect3DDevice8 *)" (?PreReset@@YAXPAUIDirect3DDevice8@@@Z)    Main.obj
Error    7    fatal error LNK1120: 6 unresolved externals

[ZeaS]

lol that guy again : >

did you include(add) the d3dfont.cpp ?

[fatboy88]

just use D3DXCreateFontIndirect


font->drawtextA


i dunno doesnt really get any easier

[Roverturbo]

It errors because you failed to learn even the basics of the C++ programming language. Sorry, but it's the truth about 99% of your posts. Maybe research the error yourself and then come back and tell us what you have tried to fix it, then maybe someone might be inclinded to help you proper.

[K@N@VEL]

I guess i'll be nice and help you out, Unresolved symbol errors usually happen when the compiler can see a function's declaration but not its definition, For example lets say we have:

void RandomFunction();

The compiler will see that you have declared "RandomFunction" but no body of actual code to help resolve the stub, So to fix it we would show the compiler the body:

void RandomFunction( void )
{
         // Do some shit in here
}

If you working on something that uses library you may also run into this error if you dont INCLUDE THE LIBRARY properly so let's say we are making directx application and you include "d3d9.h" it can see all the function prototypes but not the functions contents which are stored in "d3d9.lib" so to fix your issue maybe sure to tell the compiler its using a library:

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

Will fix unresolved symbols caused by d3d9.h, Hope u learned something.