轉自 ： http://hi.baidu.com/welflau/blog/item/1b17032320bb05499358075e.html
http://hi.baidu.com/welflau/希望能保留原創作者鏈接，謝謝！
2008-12-02
第1講【創建框架】
1 新建MFC exe / dialog based
2 刪除dialog類的顯示代碼
3 添加WelflGameFrm類
4 在app類的InitInstance 函數中 添加http://hi.baidu.com/welflau/希望能保留原創作者鏈接，謝謝！
m_pMainWnd = new CWelflGameFrm;
m_pMainWnd->ShowWindow( m_nCmdShow );
m_pMainWnd->UpdateWindow();
5 將CWelflGameFrm()構造函數改為public 成員
6 在構造函數CWelflGameFrm中添加：
RECT rect;
Create(NULL,"ch07-1: ミDirectGraphics");
CClientDC dc(this);
int width = dc.GetDeviceCaps(HORZRES);
int height = dc.GetDeviceCaps(VERTRES);
GetWindowRect( &rect );
width = ( width - ( rect.right - rect.left ))/2 ;
height = (height - (rect.bottom - rect.top ))/2 ;
MoveWindow( width , height , (rect.right - rect.left ) , (rect.bottom - rect.top ) ,true);
7 為CWelfGameFrm類添加WindowProc函數，并加入代碼：http://hi.baidu.com/welflau/希望能保留原創作者鏈接，謝謝！
switch( message )
{
case WM_CREATE :
if( !d3dCreate( m_hWnd , 640 , 480 , true ))
PostMessage( WM_CLOSE );
return 0 ;
case WM_DESTROY :
d3dRelease();
return 0 ;
}
8 為工程添加兩個文件
myd3d.cpp， myd3d.h
9 編譯出現
fatal error C1010: unexpected end of file while looking for precompiled header directive
解決方案：在Project Settings里C++頁面的Precomplie Header里把出錯源文件設置為不使用預編譯頭就可以了，詳見視頻
10 將BOOL CWelfGameApp::InitInstance()中的
return FALSE;改為 return TRUE;
11 為CWelfGameFrm類添加OnPaint響應
添加如下代碼：
d3dClear(0);
//
d3d_Device->Present( NULL , NULL , NULL , NULL );
第2講【繪制文字和圖像】
目錄
【一】、從DirectGraphic中獲取DC（GDI）
【二】、2D圖像繪制
【一】、從DirectGraphic中獲取DC（GDI）
1 添加類d3dHdc 在 myd3d.h文件中
class d3dHdc
{
private :
HDC m_hdc ;
LPDIRECT3DSURFACE9 m_Surface ;
public :
void Release();
inline operator HDC(){ return m_hdc ;};
public :
d3dHdc();
~d3dHdc();
};
2在myd3d.cpp中添加函數定義
d3dHdc::d3dHdc()
{
m_hdc = 0 ;
m_Surface = 0 ;
// 獲得設備
if( !d3d_Device )
return ;
if( d3d_Device->GetBackBuffer( 0 , 0 , D3DBACKBUFFER_TYPE_MONO , &m_Surface ) != D3D_OK )
return ;
m_Surface->GetDC( &m_hdc );
}
d3dHdc::~d3dHdc()
{
Release();
}
void d3dHdc::Release()
{
if( m_Surface )
{
if( m_hdc )
m_Surface->ReleaseDC( m_hdc );
m_Surface->Release();
m_hdc = NULL ;
m_Surface = NULL ;
}
}
3 現在就可以使用他了
在繪制函數中添加：
d3dHdc hdc ;
SetTextColor( hdc , RGB( 255 , 255 , 255 ));
SetBkMode( hdc , 1 );
TextOut( hdc , 0 , 0 , str , strlen( str ));
hdc.Release();
【二】、2D圖像繪制
1 新建d3dTexture類
class d3dTexture
{
private :
int m_Width ;
int m_Height ;
LPDIRECT3DTEXTURE9 m_Texture ;
public :
void BltFast( int x , int y );
void BltFast( int l , int t , int r , int b );
public :
BOOL Create( LPCTSTR file );
void Release();
inline operator LPDIRECT3DTEXTURE9(){ return m_Texture ;};
public :
d3dTexture();
~d3dTexture();
};
2 并添加定義：
/*////////////////////////////////////////////////
3D 紋理類d3dTexture 函數定義 2008-12-02
/*////////////////////////////////////////////////
d3dTexture::d3dTexture()
{
m_Texture = NULL ;
}
d3dTexture::~d3dTexture()
{
Release();
}
void d3dTexture::Release()
{
if( m_Texture )
m_Texture->Release();
m_Texture = NULL ;
}
BOOL d3dTexture::Create( LPCTSTR file )
{
D3DXIMAGE_INFO in ;
memset( &in , 0 , sizeof( in ));
// ﹍て
Release();
//更
D3DXCreateTextureFromFileEx( d3d_Device ,
file , D3DX_DEFAULT , D3DX_DEFAULT ,
0 , 0 , D3DFMT_UNKNOWN , D3DPOOL_MANAGED ,
D3DX_DEFAULT ,
D3DX_DEFAULT , 0 , &in , NULL , &m_Texture );
if( m_Texture == NULL )
return false ;
// 眔戈
m_Width = in.Width ;
m_Height = in.Height ;
return true ;
}
void d3dTexture::BltFast(int x, int y)
{
BltFast( x , y , x + m_Width , y + m_Height );
}
void d3dTexture::BltFast(int l , int t , int r , int b )
{
D3DTLVERTEX v[4] ;
//郴翴 擋篶
memset( v , 0 , sizeof( v ));
v[0].x = v[3].x = (float)(l) ;
v[1].x = v[2].x = (float)(r);
v[0].y = v[1].y = (float)(t);
v[2].y = v[3].y = (float)(b);
v[0].rhw = v[1].rhw = v[2].rhw = v[3].rhw =
v[0].z = v[1].z = v[2].z = v[3].z = 0.5f ;
v[0].diffuse = v[1].diffuse = v[2].diffuse = v[3].diffuse = -1 ;
v[1].tu = v[2].tu = 1.0f ;
v[2].tv = v[3].tv = 1.0f ;
//砞酶瓜家Α
d3d_Device->SetTexture( 0 , m_Texture );
d3d_Device->SetFVF( D3DFVF_TLVERTEX );
d3d_Device->DrawPrimitiveUP( D3DPT_TRIANGLEFAN , 2 , (LPVOID)v , sizeof( D3DTLVERTEX ));
}
3 編譯時會出錯
解決方法：
在myd3d.h文件中添加
#include "d3dx9tex.h"
和
#pragma comment(lib,"d3dx9.lib")
以及
const DWORD D3DFVF_TLVERTEX = (D3DFVF_XYZRHW | D3DFVF_DIFFUSE | D3DFVF_SPECULAR | D3DFVF_TEX1 );
typedef struct _D3DTLVERTEX
{
float x , y , z , rhw ;
D3DCOLOR diffuse , specular;
float tu, tv;
}D3DTLVERTEX ;
4 在WelfGameFrm中添加兩個成員
d3dTexture m_Bk ;
d3dTexture m_Role ;
5 在WelfGameFrm的Create響應添加：
m_Bk.Create( "背景.tga" );
m_Role.Create( "娃娃.tga" );
6 調用BltFast進行繪制
//開始繪制
d3d_Device->BeginScene();
d3d_Device->SetRenderState( D3DRS_CULLMODE , D3DCULL_NONE );
d3d_Device->SetRenderState( D3DRS_ZENABLE , D3DZB_FALSE );
m_Bk.BltFast( 0 , 0 );
m_Role.BltFast( 0 , 0 );
d3d_Device->EndScene();
7 將BltFast函數改進
第3講 WelfGame【圖像透明及顏色】
http://hi.baidu.com/welflau/希望能保留原創作者鏈接，
【一】、實現透明圖像
1 在RenderScene()中添加設置代碼
在背景繪制前添加：
d3d_Device->SetRenderState( D3DRS_CULLMODE , D3DCULL_NONE );
d3d_Device->SetRenderState( D3DRS_ZENABLE , D3DZB_FALSE );
d3d_Device->SetRenderState( D3DRS_SHADEMODE , D3DSHADE_FLAT );
d3d_Device->SetRenderState( D3DRS_ALPHABLENDENABLE, FALSE );
在前景繪制的前面添加
d3d_Device->SetRenderState( D3DRS_SRCBLEND , D3DBLEND_SRCALPHA );
d3d_Device->SetRenderState( D3DRS_DESTBLEND , D3DBLEND_INVSRCALPHA );
d3d_Device->SetRenderState( D3DRS_ALPHABLENDENABLE, TRUE );//開啟混色
效果
2 為d3dTexture添加BltFast函數
void d3dTexture::BltFast(int l , int t , int r , int b , DWORD diffuse )
{
D3DTLVERTEX v[4] ;
//郴翴 擋篶
memset( v , 0 , sizeof( v ));
v[0].x = v[3].x = (float)(l) ;
v[1].x = v[2].x = (float)(r);
v[0].y = v[1].y = (float)(t);
v[2].y = v[3].y = (float)(b);
v[0].rhw = v[1].rhw = v[2].rhw = v[3].rhw =
v[0].z = v[1].z = v[2].z = v[3].z = 0.5f ;
//肅︹
v[0].diffuse = v[1].diffuse = v[2].diffuse = v[3].diffuse = diffuse ;
v[1].tu = v[2].tu = 1.0f ;
v[2].tv = v[3].tv = 1.0f ;
//砞酶瓜家Α
d3d_Device->SetTexture( 0 , m_Texture );
d3d_Device->SetFVF( D3DFVF_TLVERTEX );
d3d_Device->DrawPrimitiveUP( D3DPT_TRIANGLEFAN , 2 , (LPVOID)v , sizeof( D3DTLVERTEX ));
}
添加以下幾句：
d3d_Device->SetTextureStageState( 0 , D3DTSS_ALPHAARG1 , D3DTA_TEXTURE );
d3d_Device->SetTextureStageState( 0 , D3DTSS_ALPHAARG2 , D3DTA_DIFFUSE );
d3d_Device->SetTextureStageState( 0 , D3DTSS_COLORARG1 , D3DTA_TEXTURE );
d3d_Device->SetTextureStageState( 0 , D3DTSS_COLORARG2 , D3DTA_DIFFUSE );
d3d_Device->SetTextureStageState( 0 , D3DTSS_COLOROP , D3DTOP_SELECTARG1 );
d3d_Device->SetTextureStageState( 0 , D3DTSS_ALPHAOP , D3DTOP_MODULATE );
//以下為前景
m_Role.BltFast( 100, 100, 250 ,250 ,D3DCOLOR_ARGB( 128 , 255 , 255 , 255 ));//最后一個參數為顏色，包括透明度
效果圖
FW:
http://www.wowwiki.com/Making_Draggable_Frames
XML Declarations
First, the XML tags movable="true" and enableMouse="true" must be in the frames declaration.
Note: Some frame templates like 'button' already include enableMouse="true".
Example:
<Frame name="TellTrackFrame" enableMouse="true" movable="true" resizable="true" parent="UIParent" hidden="true">
Simple Dragging
One simple way to detect drag is to add OnDragStart and OnDragStop script elements to the frame:
<Scripts>
<OnLoad>
this:RegisterForDrag("LeftButton");
</OnLoad>
<OnDragStart>
this:StartMoving();
this.isMoving = true;
</OnDragStart>
<OnDragStop>
this:StopMovingOrSizing();
this.isMoving = false;
</OnDragStop>
</Scripts>
Advanced Dragging
Another way, which is more responsive but requires an onhide element so that the frame wont get stuck to the mouse:
<Scripts>
<OnMouseUp>
if ( this.isMoving ) then
this:StopMovingOrSizing();
this.isMoving = false;
end
</OnMouseUp>
<OnMouseDown>
if ( ( ( not this.isLocked ) or ( this.isLocked == 0 ) ) and ( arg1 == "LeftButton" ) ) then
this:StartMoving();
this.isMoving = true;
end
</OnMouseDown>
<OnHide>
if ( this.isMoving ) then
this:StopMovingOrSizing();
this.isMoving = false;
end
</OnHide>
</Scripts>
Note: this method also demonstrates an optional isLocked parameter to determine whether you can drag the frame or not.
Parent Dragging
Some advanced dragging addons use overlays that make default Blizzard
frames draggable. This is possible by using GetParent when starting and
stopping drag. To do this, one must make the parent frame movable
through the use of the SetMovable widget function, i.e.
frame:SetMovable(true).
One drawback with overlay frames that are mouse enabled is that they
will prevent the parent frame's click script tags from being called so
you often have to simulate their click events.
Quick Dragging Code
While somewhat untested there is an easier and more automatic way to
activate dragging. If you have your <Frame> delcaration
attributes "enableMouse" and "movable" set to true, dragging may be
accomplished by adding a <TitleRegion> tag inside of your
<Frame>
<Frame name="myname" frameStrata="HIGH" toplevel="true" enableMouse="true" movable="true" parent="UIParent">
<TitleRegion setAllPoints="true"/>
</Frame>
I haven't discovered any adverse side effects to doing this yet, I am not even sure if this is the intended use for it.
Using this method can result in the frame not responding to other mouse events, also both mouse buttons will drag the frame.
You can also specify <Size> and <Anchors> within <TitleRegion>, e.g.
<Frame name="myname" frameStrata="HIGH" toplevel="true" enableMouse="true" movable="true" parent="UIParent">
<TitleRegion>
<Size>
<AbsDimension x="200" y="20"/>
</Size>
<Anchors>
<Anchor point="TOP"/>
</Anchors>
</TitleRegion>
</Frame>
This way, your <Frame> can still receive mouse events, and you
can only drag it by clicking within its <TitleRegion>.
Lua Only Approach
If your frame is called MyFrame -
MyFrame:SetMovable(true)
MyFrame:EnableMouse(true)
MyFrame:SetScript("OnMouseDown",function()
MyFrame:StartMoving()
end)
MyFrame:SetScript("OnMouseUp",function()
MyFrame:StopMovingOrSizing()
end)