最近想在MFC中运用D3D，直接来了就用的单文档，结果调试半天还是坐标不对~
鼠标的位置就是y比画的图形要大，而且是越往右下角拉 y 距离相差就越大！！！
为什么多文档，Dialog都没这问题呢？
CODE:
//
TestDSIView.cpp : CTestDSIView 类的实现
//
#include
"
stdafx.h
"
#include
"
TestDSI.h
"
#include
"
TestDSIDoc.h
"
#include
"
TestDSIView.h
"
#ifdef _DEBUG
#define
new DEBUG_NEW
#endif
//
CTestDSIView
DWORD CTestDSIView::D3DFVF_CUSTOMVERTEX
=
(D3DFVF_XYZRHW
|
D3DFVF_DIFFUSE);IMPLEMENT_DYNCREATE(CTestDSIView, CView)BEGIN_MESSAGE_MAP(CTestDSIView, CView)
//
标准打印命令
ON_COMMAND(ID_FILE_PRINT, CView::OnFilePrint) ON_COMMAND(ID_FILE_PRINT_DIRECT, CView::OnFilePrint) ON_COMMAND(ID_FILE_PRINT_PREVIEW, CView::OnFilePrintPreview) ON_WM_LBUTTONDOWN() ON_WM_LBUTTONUP() ON_WM_MOUSEMOVE()END_MESSAGE_MAP()
//
CTestDSIView 构造/析构
CTestDSIView::CTestDSIView()
{
// TODO: 在此处添加构造代码 m_pD3D = NULL; m_pd3dDevice = NULL; m_pVB = NULL; m_bEdit = false;
}
CTestDSIView::
~
CTestDSIView()
{ this->Cleanup();}
BOOL CTestDSIView::PreCreateWindow(CREATESTRUCT
&
cs)
{ // TODO: 在此处通过修改 CREATESTRUCT cs 来修改窗口类或 // 样式 return CView::PreCreateWindow(cs);}
//
CTestDSIView 绘制
void
CTestDSIView::OnDraw(CDC
*
/**/
/*pDC*/
)
{ CTestDSIDoc* pDoc = GetDocument(); ASSERT_VALID(pDoc); if (!pDoc) return; // TODO: 在此处为本机数据添加绘制代码 Render();}
//
CTestDSIView 打印
BOOL CTestDSIView::OnPreparePrinting(CPrintInfo
*
pInfo)
{ // 默认准备 return DoPreparePrinting(pInfo);}
void
CTestDSIView::OnBeginPrinting(CDC
*
/**/
/*pDC*/
, CPrintInfo
*
/**/
/*pInfo*/
)
{ // TODO: 打印前添加额外的初始化}
void
CTestDSIView::OnEndPrinting(CDC
*
/**/
/*pDC*/
, CPrintInfo
*
/**/
/*pInfo*/
)
{ // TODO: 打印后添加清除过程}
//
CTestDSIView 诊断
#ifdef _DEBUG
void
CTestDSIView::AssertValid()
const
{ CView::AssertValid();}
void
CTestDSIView::Dump(CDumpContext
&
dc)
const
{ CView::Dump(dc);}
CTestDSIDoc
*
CTestDSIView::GetDocument()
const
//
非调试版本是内联的
{ ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CTestDSIDoc))); return (CTestDSIDoc*)m_pDocument;}
#endif
//
_DEBUG
void
CTestDSIView::OnInitialUpdate(
void
)
{ CView::OnInitialUpdate(); this->InitD3D(m_hWnd); //this->InitVB();}
void
CTestDSIView::OnLButtonDown(UINT nFlags, CPoint point)
{ m_ptDown = point; m_bEdit = true; CView::OnLButtonDown(nFlags, point);}
void
CTestDSIView::OnLButtonUp(UINT nFlags, CPoint point)
{ m_ptUp = point; m_bEdit = false; InitVB(m_ptDown.x, m_ptDown.y, point.x, point.y); Render(); CView::OnLButtonUp(nFlags, point);}
void
CTestDSIView::OnMouseMove(UINT nFlags, CPoint point)
{ if (m_bEdit)
{ m_ptMove = point; InitVB(m_ptDown.x, m_ptDown.y, point.x, point.y); Render();
} CView::OnMouseMove(nFlags, point);}
/**/
//////////////////////////////////////////////////////////////////////////
//
d3d function
HRESULT CTestDSIView::InitD3D( HWND hWnd )
{ // Create the D3D object. if( NULL == ( m_pD3D = Direct3DCreate9( D3D_SDK_VERSION ) ) ) return E_FAIL; // Set up the structure used to create the D3DDevice D3DPRESENT_PARAMETERS d3dpp; ZeroMemory( &d3dpp, sizeof(d3dpp) ); d3dpp.Windowed = TRUE; d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD; d3dpp.BackBufferFormat = D3DFMT_UNKNOWN; // Create the D3DDevice if( FAILED( m_pD3D->CreateDevice( D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, hWnd, D3DCREATE_SOFTWARE_VERTEXPROCESSING, &d3dpp, &m_pd3dDevice ) ) ) { return E_FAIL; } // Device state would normally be set here return S_OK;}
HRESULT CTestDSIView::InitVB(
int
x1
/**/
/* = 0 */
,
int
y1
/**/
/* = 0 */
,
int
x2
/**/
/* = 0 */
,
int
y2
/**/
/* = 0 */
)
{ // Initialize three vertices for rendering a triangle CUSTOMVERTEX vertices[] = { //{ 50.0f, 250.0f, 0.5f, 1.0f, 0xff00ffff, }, // { 50.0f, 50.0f, 0.5f, 1.0f, 0xffff0000, }, // x, y, z, rhw, color // { 250.0f, 50.0f, 0.5f, 1.0f, 0xff00ff00, }, //{ 250.0f, 250.0f, 0.5f, 1.0f, 0xff00ff00, }, //{50.0f, 250.0f, 0.5f, 1.0f, 0xff00ffff, }, { x1, y2, 0.f, 0.0f, 0xff00ffff, }, { x1, y1, 0.f, 0.0f, 0xffff0000, }, // x, y, z, rhw, color { x2, y1, 0.f, 0.0f, 0xff00ff00, }, { x2, y2, 0.f, 0.0f, 0xff00ff00, }, {x1, y2, 0.f, 0.0f, 0xff00ffff, }, }; // Create the vertex buffer. Here we are allocating enough memory // (from the default pool) to hold all our 3 custom vertices. We also // specify the FVF, so the vertex buffer knows what data it contains. if( FAILED( m_pd3dDevice->CreateVertexBuffer(5*sizeof(CUSTOMVERTEX), 0, D3DFVF_CUSTOMVERTEX, D3DPOOL_DEFAULT, &m_pVB, NULL ) ) ) { return E_FAIL; } // Now we fill the vertex buffer. To do this, we need to Lock() the VB to // gain access to the vertices. This mechanism is required becuase vertex // buffers may be in device memory. VOID* pVertices; if( FAILED( m_pVB->Lock( 0, sizeof(vertices), (void**)&pVertices, 0 ) ) ) return E_FAIL; memcpy( pVertices, vertices, sizeof(vertices) ); m_pVB->Unlock(); return S_OK;}
VOID CTestDSIView::Cleanup()
{ if( m_pVB != NULL ) m_pVB->Release(); if( m_pd3dDevice != NULL ) m_pd3dDevice->Release(); if( m_pD3D != NULL ) m_pD3D->Release();}
VOID CTestDSIView::Render()
{ // Clear the backbuffer to a blue color m_pd3dDevice->Clear( 0, NULL, D3DCLEAR_TARGET, D3DCOLOR_XRGB(0,0,255), 1.0f, 0 ); // Begin the scene if( SUCCEEDED( m_pd3dDevice->BeginScene() ) ) { // Draw the triangles in the vertex buffer. This is broken into a few // steps. We are passing the vertices down a "stream", so first we need // to specify the source of that stream, which is our vertex buffer. Then // we need to let D3D know what vertex shader to use. Full, custom vertex // shaders are an advanced topic, but in most cases the vertex shader is // just the FVF, so that D3D knows what type of vertices we are dealing // with. Finally, we call DrawPrimitive() which does the actual rendering // of our geometry (in this case, just one triangle). m_pd3dDevice->SetStreamSource( 0, m_pVB, 0, sizeof(CUSTOMVERTEX) ); m_pd3dDevice->SetFVF( D3DFVF_CUSTOMVERTEX ); m_pd3dDevice->DrawPrimitive( D3DPT_LINESTRIP, 0, 4 ); // End the scene m_pd3dDevice->EndScene(); } // Present the backbuffer contents to the display m_pd3dDevice->Present( NULL, NULL, NULL, NULL );}
/**/
//////////////////////////////////////////////////////////////////////////
//
CTestDSIView 消息处理程序
//
TestDSIView.h : CTestDSIView 类的接口
//
#pragma once#include
<
d3d9.h
>
#include
<
d3dx9.h
>
#pragma comment(lib,
"
d3d9.lib
"
)#pragma comment(lib,
"
d3dx9.lib
"
)#pragma comment(lib,
"
winmm.lib
"
)#pragma warning(disable :
4244
)
class
CTestDSIView :
public
CView
{protected: // 仅从序列化创建 CTestDSIView(); DECLARE_DYNCREATE(CTestDSIView)// 属性public: CTestDSIDoc* GetDocument() const;// 操作public:// 重写 public: virtual void OnDraw(CDC* pDC); // 重写以绘制该视图virtual BOOL PreCreateWindow(CREATESTRUCT& cs);protected: virtual BOOL OnPreparePrinting(CPrintInfo* pInfo); virtual void OnBeginPrinting(CDC* pDC, CPrintInfo* pInfo); virtual void OnEndPrinting(CDC* pDC, CPrintInfo* pInfo);//d3d memberprivate: LPDIRECT3D9 m_pD3D; LPDIRECT3DDEVICE9 m_pd3dDevice; LPDIRECT3DVERTEXBUFFER9 m_pVB; POINT m_ptDown; POINT m_ptUp; POINT m_ptMove; bool m_bEdit;//d3d function memberprotected: HRESULT InitD3D( HWND hWnd ); HRESULT InitVB(int x1 = 0, int y1 = 0, int x2 = 0, int y2 = 0); VOID Cleanup(); VOID Render(); struct CUSTOMVERTEX { FLOAT x, y, z, rhw; // The transformed position for the vertex DWORD color; // The vertex color }; // Our custom FVF, which describes our custom vertex structure static DWORD D3DFVF_CUSTOMVERTEX; //#define D3DFVF_CUSTOMVERTEX (D3DFVF_XYZRHW|D3DFVF_DIFFUSE)// 实现public: virtual ~CTestDSIView();#ifdef _DEBUG virtual void AssertValid() const; virtual void Dump(CDumpContext& dc) const;#endifprotected:// 生成的消息映射函数protected: DECLARE_MESSAGE_MAP() afx_msg void OnLButtonDown(UINT nFlags, CPoint point); afx_msg void OnLButtonUp(UINT nFlags, CPoint point); afx_msg void OnMouseMove(UINT nFlags, CPoint point);public: virtual void OnInitialUpdate(void);}
;#ifndef _DEBUG
//
TestDSIView.cpp 的调试版本
inline CTestDSIDoc
*
CTestDSIView::GetDocument()
const
{ return reinterpret_cast<CTestDSIDoc*>(m_pDocument); }
#endif
