nvidia 的 nview 工具可把畫面轉90度(1024*768), 所有的程式輸出都可左轉90度, 但為何碰上 d3d9 的全螢幕模式下程式輸出就完全不轉了?  以下附上我的程式碼, 請先進們指教! 如何用最有效率的方法將之左轉90度! 還有為何這支程式為何 nview 無法控制它轉90度?    #include  #pragma hdrstop #include "Unit1.h" //#include <Math.hpp> HDC hDC = 0; // Handle Device Context TCanvas* cv = 0; // Pointer to Canvas //--------------------------------------------------------------------------- #pragma package(smart_init) #pragma link "AIRLib_OCX" #pragma resource "*.dfm" TForm1 *Form1; //--------------------------------------------------------------------------- __fastcall TForm1::TForm1(TComponent* Owner) : TForm(Owner) { } //--------------------------------------------------------------------------- void __fastcall TForm1::FormCreate(TObject *Sender) { Screen->Cursor=crNone; SetBounds((Screen->Width-nWidth)/2, (Screen->Height-nHeight)/2, nWidth,nHeight); bool bOk = true; if(!InitD3D(Handle, nWidth, nHeight, false, D3DDEVTYPE_HAL, &Device)) { ShowMessage("InitD3D() FAILED!"); bOk = false; } Application->OnIdle = idle; //Display(0.4); } bool Display(float timeDelta) { // GetFlyValues(); if( Device ) // Only use Device methods if we have a valid device. { Device->BeginScene(); pBackSurf->GetDC(&hDC); cv = new TCanvas; cv->Handle = hDC; cv->Font->Name = "Arial"; cv->Font->Style = TFontStyles() << fsBold; cv->Font->Size = 12; cv->Brush->Color = clBlack; cv->Pen->Color = clRed; cv->Rectangle(0, 0, (nWidth), (nHeight)); Form1->Button1->PaintTo(cv, 100.0, 200.0); /* if(Form1->bBack) BitBlt(cv->Handle, 0, 0, nWidth, nHeight, bmBack->Canvas->Handle, 0, 0, SRCCOPY); */ // DrawRadar(); // DrawVel(); // DrawAOA(); // DrawHel(); // DrawROC(); // SetGMS(); // DrawROC1(); // DrawHel1(); // DrawVel1(); // DrawAOA1(); // DrawHeading(); // DrawTexts(); // if(Form1->bRef) // { // 十字線 cv->Pen->Color = clGray; int i, x, y; for(i=0; (iMoveTo(x, 0); cv->LineTo(x, nHeight); } for(i=0; (iMoveTo(0, y); cv->LineTo(nWidth, y); } cv->Pen->Color = clRed; cv->MoveTo((nWidth/2), 0); cv->LineTo((nWidth/2), nHeight); cv->Pen->Color =clYellow; cv->MoveTo(0, (nHeight/2)); cv->LineTo(nWidth, (nHeight/2)); cv->Font->Color = clWhite; cv->Brush->Style= bsClear; cv->TextOutA(2, 18, "test"); cv->Brush->Color = clBlack; cv->Pen->Color = clRed; cv->Brush->Style= bsClear; // } // CalcFPS(timeDelta); delete cv; pBackSurf->ReleaseDC(hDC); Device->EndScene(); Device->Present(0, 0, 0, 0); } return true; } void Cleanup() { Release(pBackSurf); Release(Device); // CloseShareMemory(); } void __fastcall TForm1::FormDestroy(TObject *Sender) { Cleanup(); Screen->Cursor=crDefault; } void __fastcall TForm1::idle(TObject* Sender,bool &Done) { static float lastTime=timeGetTime(); float currTime=timeGetTime(); float timeDelta=(currTime-lastTime)*0.001f; Display(timeDelta); lastTime=currTime; Done=false; } bool InitD3D(HWND hwnd, int width, int height, bool windowed, D3DDEVTYPE deviceType, IDirect3DDevice9** device) { HRESULT hr = 0; // Step 1: Create the IDirect3D9 object. IDirect3D9* d3d9 = 0; d3d9 = Direct3DCreate9(D3D_SDK_VERSION); if( !d3d9 ) { ::MessageBox(0, "Direct3DCreate9() - FAILED", 0, 0); return false; } // Step 2: Check for hardware vp. D3DCAPS9 caps; d3d9->GetDeviceCaps(D3DADAPTER_DEFAULT, deviceType, &caps); int vp = 0; if( caps.DevCaps & D3DDEVCAPS_HWTRANSFORMANDLIGHT ) vp = D3DCREATE_HARDWARE_VERTEXPROCESSING; else vp = D3DCREATE_SOFTWARE_VERTEXPROCESSING; // Step 3: Fill out the D3DPRESENT_PARAMETERS structure. D3DPRESENT_PARAMETERS d3dpp; d3dpp.BackBufferWidth = width ; d3dpp.BackBufferHeight = height; d3dpp.BackBufferFormat = D3DFMT_X8R8G8B8; d3dpp.BackBufferCount = 1; d3dpp.MultiSampleType = D3DMULTISAMPLE_NONE; d3dpp.MultiSampleQuality = 0; d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD; d3dpp.hDeviceWindow = hwnd; d3dpp.Windowed = windowed; // d3dpp.EnableAutoDepthStencil = false; // d3dpp.AutoDepthStencilFormat = D3DFMT_D24S8; d3dpp.Flags = D3DPRESENTFLAG_LOCKABLE_BACKBUFFER; d3dpp.FullScreen_RefreshRateInHz = D3DPRESENT_RATE_DEFAULT; d3dpp.PresentationInterval = D3DPRESENT_INTERVAL_IMMEDIATE; // Step 4: Create the device. hr = d3d9->CreateDevice( D3DADAPTER_DEFAULT, // primary adapter deviceType, // device type hwnd, // window associated with device vp, // vertex processing &d3dpp, // present parameters device); // return created device if( FAILED(hr) ) { // try again using a 16-bit depth buffer d3dpp.AutoDepthStencilFormat = D3DFMT_D16; hr = d3d9->CreateDevice( D3DADAPTER_DEFAULT, deviceType, hwnd, vp, &d3dpp, device); if( FAILED(hr) ) { d3d9->Release(); // done with d3d9 object ::MessageBox(0, "CreateDevice() - FAILED", 0, 0); return false; } } hr=Device->GetBackBuffer( 0, 0, D3DBACKBUFFER_TYPE_MONO, &pBackSurf ); d3d9->Release(); // done with d3d9 object if( FAILED(hr) ){ d3d9->Release(); // done with d3d9 object ::MessageBox(0, "GetBackBuffer() - FAILED", 0, 0); return false; } return true; } //---------------------------------------------------------------------------

好可憐! 沒人理我! 是否我的問題太奇怪了?