在CB中进行DirectX编程（4）
作者 佚名技术
来源 程序设计
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发布时间 2012-06-30
| Text+"Get DC of OffScreen Screen Surface Failed."+(String)CR; else { Memo1->Lines->Text=Memo1->Lines->Text+"Get DC of OffScreen Screen Surface OK."+(String)CR; if(BitBlt(hdc,0,0,100,100,hdcImage,0,0,SRCCOPY)==FALSE) Memo1->Lines->Text=Memo1->Lines->Text+"OffScreen Screen BitBlt Failed."+(String)CR; else { Memo1->Lines->Text=Memo1->Lines->Text+"OffScreen Screen BitBlt OK."+(String)CR; Button4->Enabled=false; Button5->Enabled=true; } lpDDOffScreen->ReleaseDC(hdc); } if(hdcImage) DeleteDC(hdcImage); if(hbm) DeleteObject(hbm); } //--------------------------------------------------------------------------- void __fastcall TForm1::Button5Click(TObject *Sender) { HDC hdc,hdcImage; HBITMAP hbm; hbm=(HBITMAP)LoadImage(NULL,"view.bmp",IMAGE_BITMAP,200,100,LR_LOADFROMFILE|LR_CREATEDIBSECTION); hdcImage=CreateCompatibleDC(NULL); SelectObject(hdcImage,hbm); if(FAILED(lpDDPrimary->GetDC(&hdc))) Memo1->Lines->Text=Memo1->Lines->Text+"Get DC of Primary Screen Surface Failed."+(String)CR; else { Memo1->Lines->Text=Memo1->Lines->Text+"Get DC of Primary Screen Surface OK."+(String)CR; if(BitBlt(hdc,0,0,200,100,hdcImage,0,0,SRCCOPY)==FALSE) Memo1->Lines->Text= Memo1->Lines->Text+"Primary Screen BitBlt Failed."+(String)CR; else { Memo1->Lines->Text=Memo1->Lines->Text+"Primary Screen BitBlt OK."+(String)CR; Button5->Enabled=false; Button6->Enabled=true; } lpDDPrimary->ReleaseDC(hdc); } if(hdcImage) DeleteDC(hdcImage); if(hbm) DeleteObject(hbm); } //--------------------------------------------------------------------------- void __fastcall TForm1::Button6Click(TObject *Sender) { HDC hdcPrimary,hdcOffScreen; lpDDPrimary->GetDC(&hdcPrimary); lpDDOffScreen->GetDC(&hdcOffScreen); BitBlt(hdcPrimary,200,0,100,100,hdcOffScreen,0,0,SRCCOPY); lpDDPrimary->ReleaseDC(hdcPrimary); lpDDOffScreen->ReleaseDC(hdcOffScreen); Memo1->Lines->Text=Memo1->Lines->Text+"OffScreen To Primary OK."+(String)CR; Button6->Enabled=false; Button7->Enabled=true; } //--------------------------------------------------------------------------- void __fastcall TForm1::Button7Click(TObject *Sender) { lpDD2->SetDisplayMode(640,480,16,0,0); if(lpDDPrimary->IsLost()==DDERR_SURFACELOST&&lpDDOffScreen->IsLost()==DDERR_SURFACELOST) Memo1->Lines->Text=Memo1->Lines->Text+"Surfaces are Lost."+(String)CR; else Memo1->Lines->Text=Memo1->Lines->Text+"Surfaces remain."+(String)CR; Button7->Enabled=false; Button8->Enabled=true; } //--------------------------------------------------------------------------- void __fastcall TForm1::Button8Click(TObject *Sender) { lpDD2->SetDisplayMode(800,600,16,0,0); lpDDPrimary->Restore(); lpDDOffScreen->Restore(); Memo1->Lines->Text=Memo1->Lines->Text+" |
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