自学教程：C++ DrawScreen函数代码示例

void Button28OnClick() {    unsigned char l,cnt[4];    if(i==6) {        if(a==0) {              a=1;             i=0;             InitMCU();            SF_Start();            SF_mem();            Write_Log("Security armed");                     }        else {              i=0;            InitMCU();                        SF_Start();            SF_rem();            Write_Log("Security disarmed");           }        DrawScreen(&System_Log_Screen);        Delay_ms(2000);        strcpy(Label24.Caption," ");        hom=1;        DrawScreen(&Home);    }}

void SF_mem(){  unsigned char i,l,cnt[4];  long adr=0x111111;  for(i=0;i<6;i++) {    SerialFlash_WriteByte(arm[i],adr);    adr+=0x000020;  }  strcpy(Label24.Caption,"  ******");  DrawScreen(&System_Log_Screen);  for(l=0;l<10;l++) {    ByteToStr(10-l,cnt);    strcpy(Label25.Caption,"      ");    strcat(Label25.Caption,cnt);    DrawScreen(&System_Log_Screen);    FT812_Sound_SetAndPlay(_FT812_SOUND_CLICK,_FT812_SOUND_PITCH_B3,vol);    Delay_ms(1000);  }  Box30.Color=0x00FF0000;  Box36.Color=0x00FF0000;  Image65.Visible=0;  Image66.Visible=1;  strcpy(Label25.Caption,"   ARMED");  strcpy(Label8.Caption,"   ARMED");}

/** * Runs the game. * @param track file * @return */int Gameplay(FILE* track){  int sleeptime = START_PERIOD;  int freeze = 0;  size_t count = 0;  unsigned planepos = SCREEN_WIDTH / 2;  DrawScreen();  while (1)  {    usleep(sleeptime);    if (sleeptime > 100 * 1000)      sleeptime = sleeptime - sleeptime / 20;    if (input.key_pressed == quit) //TODO: Handle quit    {      break;    }        if (freeze)    {      continue;    }    if (!ScrollScreen(track))    {      mvprintw(SCREEN_HEIGHT / 2, 10, "   Track completed!   ");      refresh();      freeze = 1;      continue;    }    pthread_mutex_lock(&input.lock);    if ((input.key_pressed == left) && planepos > 0) // TODO: Handle left movement    {      planepos--;      input.key_pressed = not_pressed;    }        if ((input.key_pressed == right) && planepos < SCREEN_WIDTH - 1) // TODO: Handle right movement    {      planepos++;      input.key_pressed = not_pressed;    }    pthread_mutex_unlock(&input.lock);        if (screen[SCREEN_WIDTH * (SCREEN_HEIGHT - 1) + planepos] == OBSTACLE)    {      // Ohhh no... Crash!      mvprintw(SCREEN_HEIGHT / 2, 10, "   CRASH! Game over.   ");      refresh();      freeze = 1;      continue;    }    screen[SCREEN_WIDTH * (SCREEN_HEIGHT - 1) + planepos] = PLANE;    DrawScreen();    mvprintw(0, 0, " %zu ", count++);    refresh();  }  return 0;}

bool OpenGLSWFrameBuffer::Wiper_Crossfade::Run(int ticks, OpenGLSWFrameBuffer *fb){	Clock += ticks;	// Put the initial screen back to the buffer.	DrawScreen(fb, fb->InitialWipeScreen);	// Draw the new screen on top of it.	DrawScreen(fb, fb->FinalWipeScreen, GL_FUNC_ADD, ColorValue(0,0,0,Clock / 32.f), ColorRGBA(255,255,255,0));	return Clock >= 32;}

bool D3DFB::Wiper_Crossfade::Run(int ticks, D3DFB *fb){	Clock += ticks;	// Put the initial screen back to the buffer.	DrawScreen(fb, fb->InitialWipeScreen);	// Draw the new screen on top of it.	DrawScreen(fb, fb->FinalWipeScreen, D3DBLENDOP_ADD,		D3DCOLOR_COLORVALUE(0,0,0,Clock / 32.f), D3DCOLOR_RGBA(255,255,255,0));	return Clock >= 32;}

void CircleButton7OnPress() {    if((Box62.Left+Box62.Width)>=(Box64.Left+Box64.Width)) Box64.Left+=1;    d_l[choice_t]=0+(int)floor((Box64.Left-219)*100/197);    dim_l[choice_t]=Box64.Left;    IntToStr(d_l[choice_t],Label97.Caption);    DrawScreen(&Light_Mode);}

voidApp::Run(){    //    // Initialize the event handler    //    EventManager eventHandler;        // Main game loop    while(1)    {        //        // Draw the next screen        //                DrawScreen();                // Step the physics world        PhysicsWorld::GetInstance()->Step(1.0 / 60.0);                // Sleep        SDL_Delay(1000.0 / 60.0);                //        // Handle events        //        while(eventHandler.IsEventWaiting())            eventHandler.HandleEvent();    }        }

void SM_BT_MMClick() {// Go back to Main ScreenCounterflag = 0;remote_mod=0;DrawScreen(&MainMenu);}

void doSettings() {    BLED_Fade_Out();    DrawScreen(&Settings);    BLED_Fade_In();    Logger_State = 2;}

void ChangeResolution(){if (bFullScreen)  {  if (vmVideoMode==vmGraph512)    sfScreen = SDL_SetVideoMode(512, 384, 8,                                SDL_SWSURFACE | SDL_FULLSCREEN |                                SDL_HWPALETTE);  else if (vmVideoMode==vmGraph800)    sfScreen = SDL_SetVideoMode(800, 600, 8,                                SDL_SWSURFACE | SDL_FULLSCREEN |                                SDL_HWPALETTE);  else    sfScreen = SDL_SetVideoMode(640, 480, 8,                                SDL_SWSURFACE | SDL_FULLSCREEN |                                SDL_HWPALETTE);  SDL_ShowCursor(SDL_DISABLE);  }else  {  if (vmVideoMode==vmGraph512)    sfScreen = SDL_SetVideoMode(512, 384, 8,                                SDL_SWSURFACE | SDL_HWPALETTE);  else if (vmVideoMode==vmGraph800)    sfScreen = SDL_SetVideoMode(800, 600, 8,                                SDL_SWSURFACE | SDL_HWPALETTE);  else    sfScreen = SDL_SetVideoMode(640, 480, 8,                                SDL_SWSURFACE | SDL_HWPALETTE);  SDL_ShowCursor(SDL_ENABLE);  }//printf("w=%d, h=%d, pitch=%d/n",SDL_GetVideoSurface()->w,SDL_GetVideoSurface()->h,SDL_GetVideoSurface()->pitch);SetPalette();DrawScreen();}

void Button40OnClick() {    char i;    if(ti!=1 && tim[1]!=1) {        ti=1;        dat=2;        Button39.Color=0x00800000;        Button40.Color=0x00FF0000;        Button41.Color=0x00800000;        Button42.Color=0x00800000;        Button46.Color=0x00800000;        Label34.Font_Color=0x00FFFFFF;        Label44.Font_Color=0x00400000;        Label45.Font_Color=0x00FFFFFF;        Label71.Font_Color=0x00FFFFFF;        Label72.Font_Color=0x00FFFFFF;                strcpy(Label44.Caption,"Minutes:  ");        datum.min=0;        for(i=2;i<4;i++) {            date[i]=0;        }                DrawScreen(&Settings_Screen);    }}

void Button39OnClick() {    char i;    if(ti!=0 && tim[0]!=1) {        ti=0;        dat=0;        Button39.Color=0x00FF0000;        Button40.Color=0x00800000;        Button41.Color=0x00800000;        Button42.Color=0x00800000;        Button46.Color=0x00800000;        Label34.Font_Color=0x00400000;        Label44.Font_Color=0x00FFFFFF;        Label45.Font_Color=0x00FFFFFF;        Label71.Font_Color=0x00FFFFFF;        Label72.Font_Color=0x00FFFFFF;                strcpy(Label34.Caption,"Hour:  ");        datum.hour=0;        for(i=0;i<2;i++) {            date[i]=0;        }                DrawScreen(&Settings_Screen);    }}

void Button11OnClick() {    unsigned char i;    strcpy(Label73.Caption,"");    strcpy(Label75.Caption,"");    strcpy(Label76.Caption,"");    strcpy(Label77.Caption,"");    strcpy(Label78.Caption,"");    strcpy(Label34.Caption,"Hours:  ");    strcpy(Label44.Caption,"Minutes:  ");    strcpy(Label45.Caption,"Day:  ");    strcpy(Label71.Caption,"Month:  ");    strcpy(Label72.Caption,"Year:  ");    for(i=0;i<12;i++) {        date[i]=0;    }     for(i=0;i<5;i++) {        tim[i]=0;    }    dat=0;    datum.hour=0;    datum.min=0;    datum.day=0;    datum.mon=0;    datum.year=0;    Button39OnClick();    DrawScreen(&Settings_Screen);    }

void Box24OnClick() {    CheckBox1.Checked=1-CheckBox1.Checked;    DrawScreen(&Keyboard_Screen);    vol=255-vol;    FT812_Sound_SetAndPlay(_FT812_SOUND_XYLOPHONE,_FT812_SOUND_PITCH_B3,vol);    Delay_ms(1000);}

void Button27OnClick() {    char cnt;    for(cnt=0;cnt<=5;cnt++) arm[cnt]=0;    i=0;    strcpy(Label24.Caption,"");    DrawScreen(&System_Log_Screen);}

void CircleButton8OnPress() {    if((Box63.Left+Box63.Width)>=(Box65.Left+Box65.Width)) Box65.Left+=1;    h_l[choice_t]=15+(int)floor((Box65.Left-219)*15/197);    hum_l[choice_t]=Box65.Left;    IntToStr(h_l[choice_t],Label98.Caption);    DrawScreen(&Light_Mode);}

int main(void) {	// Initialise the clock to have a /1 prescaler and use the external crystal clock source for accuracy.	CLK_DeInit();	CLK_SYSCLKConfig(CLK_PRESCALER_CPUDIV1);	CLK_ClockSwitchConfig(CLK_SWITCHMODE_AUTO, CLK_SOURCE_HSE, DISABLE, CLK_CURRENTCLOCKSTATE_DISABLE);		// Reset ("de-initialise") GPIO port D.	GPIO_DeInit(GPIOD);	// Initialise pin 0 of port D by setting it as:	// - an output pin,	// - using a push-pull driver,	// - at a low logic level (0V), and	// - 10MHz.	GPIO_Init(GPIOD, GPIO_PIN_0, GPIO_MODE_OUT_PP_LOW_FAST);		LCDInit(); // Init the LCD	DecodeInit(); // Init the GPS decoding	DrawScreen(); // Setup Screen and Buffer		// Infinite loop.	for(;;) {		// Blink Debug LED		GPIO_WriteReverse(GPIOD, GPIO_PIN_0);				DrawDemo();		}}

void Button41OnClick() {    char i;    if(ti!=2 && tim[2]!=1) {        ti=2;        dat=4;        Button39.Color=0x00800000;        Button40.Color=0x00800000;        Button41.Color=0x00FF0000;        Button42.Color=0x00800000;        Button46.Color=0x00800000;        Label34.Font_Color=0x00FFFFFF;        Label44.Font_Color=0x00FFFFFF;        Label45.Font_Color=0x00400000;        Label71.Font_Color=0x00FFFFFF;        Label72.Font_Color=0x00FFFFFF;                strcpy(Label45.Caption,"Day:  ");        datum.day=0;        for(i=4;i<6;i++) {            date[i]=0;        }                DrawScreen(&Settings_Screen);    }}

void doPrevScreen() {    BLED_Fade_Out();    DrawScreen(&Speedometer);    BLED_Fade_In();    Logger_State = 0;}

void Button42OnClick() {    char i;    if(ti!=3 && tim[3]!=1) {        ti=3;        dat=6;        Button39.Color=0x00800000;        Button40.Color=0x00800000;        Button41.Color=0x00800000;        Button42.Color=0x00FF0000;        Button46.Color=0x00800000;        Label34.Font_Color=0x00FFFFFF;        Label44.Font_Color=0x00FFFFFF;        Label45.Font_Color=0x00FFFFFF;        Label71.Font_Color=0x00400000;        Label72.Font_Color=0x00FFFFFF;                strcpy(Label71.Caption,"Month:  ");        datum.mon=0;        for(i=6;i<8;i++) {            date[i]=0;        }                DrawScreen(&Settings_Screen);        }}

void doSensorTest() {    BLED_Fade_Out();    DrawScreen(&Sensor_test);    BLED_Fade_In();    Logger_State = 4;}

void Button46OnClick() {    char i;    if(ti!=4 && tim[4]!=1) {        ti=4;        dat=8;        Button39.Color=0x00800000;        Button40.Color=0x00800000;        Button41.Color=0x00800000;        Button42.Color=0x00800000;        Button46.Color=0x00FF0000;        Label34.Font_Color=0x00FFFFFF;        Label44.Font_Color=0x00FFFFFF;        Label45.Font_Color=0x00FFFFFF;        Label71.Font_Color=0x00FFFFFF;        Label72.Font_Color=0x00400000;                strcpy(Label72.Caption,"Year:  ");        datum.year=0;        for(i=8;i<12;i++) {            date[i]=0;        }                        DrawScreen(&Settings_Screen);    }}

void CDrawableWidget::OnPaint(){	// CButton::OnPaint();	BeginPaint(&m_ps);	DrawScreen();	EndPaint(&m_ps);}

void Button12OnClick() {    strcpy(Label23.Caption,Label94.Caption);    strcat(Label23.Caption,"h");    gr_pow=0;    hom=1;    DrawScreen(&Home);    }

void CopyToClipBoard( MainWndInfo *info ) {    HBITMAP     copy;    HBITMAP     old_bitmap;    HDC         dc;    HDC         mdc;    POINT       origin = { 0, 0 };    /* clone the bitmap */    dc = info->screen->memdc;    mdc = CreateCompatibleDC( dc );    copy = CreateCompatibleBitmap( dc, info->wndsize.x, info->wndsize.y );    old_bitmap = SelectObject( mdc, copy );    DrawScreen( info->screen, mdc, &origin, &info->wndsize,                    &origin, &info->magsize );    SelectObject( mdc, old_bitmap );    DeleteDC( mdc );    /* add the bitmap */    OpenClipboard( info->screen->hwnd );    EmptyClipboard();    SetClipboardData( CF_BITMAP, copy );    CloseClipboard();}

void CircleButton3OnPress() {    if((Box47.Left+Box47.Width)>=(Box23.Left+Box23.Width)) Box23.Left+=1;    t_t[choice_t]=15+(int)floor((Box23.Left-219)*15/197);    temp_t[choice_t]=Box23.Left;    IntToStr(t_t[choice_t],Label95.Caption);    DrawScreen(&Temperature_Mode);}

void CircleButton4OnPress() {    if((Box48.Left+Box48.Width)>=(Box49.Left+Box49.Width)) Box49.Left+=1;    h_t[choice_t]=20+(int)floor((Box49.Left-219)*60/197);    hum_t[choice_t]=Box49.Left;    IntToStr(h_t[choice_t],Label96.Caption);    DrawScreen(&Temperature_Mode);}

void SF_rem(){  unsigned char i,temp[6];  char txte[4],txtex[4];  int val=0;  long adr=0x111111;  for(i=0;i<6;i++) {    temp[i] = SerialFlash_ReadByte(adr);    ByteToStr(temp[i],txte);    ByteToStr(arm[i],txtex);    if(temp[i]!=arm[i]) val=1;    adr+=0x000020;  }  Delay_ms(3000);  for(i=0;i<6;i++) arm[i]=0;  strcpy(Label24.Caption,"");  DrawScreen(&System_Log_Screen);  if(val==0) {    a=0;    Box30.Color=0x00008040;    Box36.Color=0x00008040;    Image65.Visible=1;    Image66.Visible=0;    strcpy(Label25.Caption,"DISARMED");    strcpy(Label8.Caption,"DISARMED");  }}

void SS_BT_RMClick() {//remote_mod=1; UART1_Write_Text("Remote");DrawScreen(&RemoteMode);}

int main(int argc, char **argv) {	ros::init(argc, argv, "HumanInterface"); //Creates a node named "HumanInterface"	ros::NodeHandle n;	pose_sub = n.subscribe("/motion/Odometry", 1000, receive_pose_estimate);	pose_target_sub = n.subscribe("/motion/Speed", 1000, receive_pose_target);	cv::Mat screen(HEIGHT,WIDTH,CV_8UC1,cv::Scalar(0));	cv::cvtColor(screen, screen, CV_GRAY2BGR);		//ros::Rate loop_rate(30); // frequency	cv::imshow("Human Interface", screen);	cv::waitKey(1);		int time_old = ros::Time::now().nsec;		while (ros::ok()) {		if (ros::Time::now().nsec-time_old > 100E6	&& redraw) {			time_old = ros::Time::now().nsec ;			DrawScreen(screen);			redraw = false;		}		//loop_rate.sleep(); // Sleep for 10 ms		ros::spinOnce(); // Process ros messages	}	return EXIT_SUCCESS;}