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C++ GetPixel函数代码示例

本文整理汇总了C++中GetPixel函数的典型用法代码示例。如果您正苦于以下问题：C++ GetPixel函数的具体用法？C++ GetPixel怎么用？C++ GetPixel使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。


在下文中一共展示了GetPixel函数的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: Image

Image* Image::Crop(int x, int y, int w, int h)
{
  /* Your Work Here (section 3.2.5) */
  //return NULL ;
  Pixel px;
  Image* img = new Image(w, h);

  for(int y_ = 0; y_ < h; y_++) {
    for(int x_ = 0; x_ < w; x_++) {
      px = GetPixel(x + x_, y + y_);
      img->GetPixel(x_, y_).Set(px.r, px.g, px.b, px.a);
    }
  }
  return img;
}
开发者ID:aqchin，项目名称:imagesignal，代码行数:15，代码来源:image.cpp

示例2: dc

void CMainDlg::OnPaint() 
{
	CPaintDC dc(this); // device context for painting
	if (IsIconic())
	{		

		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// Draw the icon
		//dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{		
		//CDialog::OnPaint();
					
		RECT rect;
		GetClientRect(&rect);
		int w = rect.right - rect.left;
		int h = rect.bottom - rect.top;				
		COLORREF colortrans = RGB(0,255,0);
		HBRUSH hBrush = CreateSolidBrush(colortrans);
		FillRect(dc,&rect,hBrush);
		DeleteObject(hBrush);		
				
		BITMAP bmp;
		GetObject(m_hBmp,sizeof(bmp),&bmp);
		HDC hBmpDC = CreateCompatibleDC(dc);
		SelectObject(hBmpDC,m_hBmp);
		
		TransparentBlt(dc,0,0,bmp.bmWidth, bmp.bmHeight,hBmpDC,0,0,bmp.bmWidth,bmp.bmHeight,RGB(0,255,0));
		DeleteDC(hBmpDC);			
							
		if(m_bFirst){						
			HRGN rgn = GetTrans(dc,GetPixel(dc,0,0),0,0,bmp.bmWidth, bmp.bmHeight);	
			::SetWindowRgn(m_hWnd,rgn,TRUE);						
			m_bFirst = FALSE;								
		}
		
	}
}
开发者ID:araneta，项目名称:NetTalk2，代码行数:48，代码来源:MainDlg.cpp

示例3: CheckHit

/*
 * calculate where on the target the bolt hit
 * this is based on the colours of the target rings
 */
static void CheckHit( HDC hdc, POINT hit_point )
/**********************************************/
{
    DWORD               colour;
    unsigned short      points;
    unsigned short      dialog_item;
    BOOL                translated;

    colour = GetPixel( hdc, hit_point.x, hit_point.y );

    switch( colour ) {
    case RING1:
        dialog_item = YELLOW;
        break;
    case RING2:
        dialog_item = RED;
        break;
    case RING3:
        dialog_item = BLUE;
        break;
    case RING4:
        dialog_item = BLACK;
        break;
    case RING5:
        dialog_item = WHITE;
        break;
    case BACKGROUND:
        dialog_item = MISSED;
        break;
    }

    /*
     * increment # of hits on location
     */
    points = GetDlgItemInt( ScoreWnd, dialog_item, &translated, FALSE );
    points++;
    SetDlgItemInt( ScoreWnd, dialog_item, points, FALSE );

    /*
     * increment # of shots
     */
    points = GetDlgItemInt( ScoreWnd, SHOTS, &translated, FALSE );
    points++;
    SetDlgItemInt( ScoreWnd, SHOTS, points, FALSE );

    return;

} /* CheckHit */
开发者ID:ABratovic，项目名称:open-watcom-v2，代码行数:52，代码来源:shootgal.c

示例4: GetWidth

bool CFloodFill2::DrawLineH(int x1, int x2, int y, COLORREF Color, const CRect& Rect)
{
	if (!m_pDib)
		return false;

	if (!m_bRedEye && Color == CLR_NONE)
		return false;

	if (x1 > x2)
		x1^=x2, x2^=x1, x1^=x2;

	if (x1 < 0 && x2 < 0)
		return false;

	LONG nWidth = GetWidth();
	if (x1 >= nWidth && x2 >= nWidth)
		return false;

	if (x1 < 0)
		x1 = 0;

	if (x2 >= nWidth)
		x2 = nWidth - 1;

	int x = x1;
	LPBYTE pPixel = DibPtrXYExact(m_pDib, x1, y);
	LPBYTE pEnd = DibPtrXYExact(m_pDib, x2, y);

	while (pPixel <= pEnd)
	{
		if (m_pBufferDib)
		{
			if (!m_bRedEye)
				Color = m_pBufferDib->GetPixel(x++, y);
			else
			{
				Color = GetPixel(x++, y); 
				RedEyeRemove(Color);
			}
		}

		*pPixel++ = GetBValue(Color);
		*pPixel++ = GetGValue(Color);
		*pPixel++ = GetRValue(Color);
	}

	return true;
}
开发者ID:jimmccurdy，项目名称:ArchiveGit，代码行数:48，代码来源:FloodFill2.bak.cpp

示例5: update

void ImageWidget::mouseReleaseEvent(QMouseEvent *event)
{
	QWidget::mouseReleaseEvent(event);

	// Eventlogik
	if (event->button() == Qt::LeftButton) {
		mDraw = false;

		// Aktualisiere Bild
		update();

		if (mTrack) {
			emit ColorChanged(GetPixel());
		}
	}
}
开发者ID:LariscusObscurus，项目名称:ITP3_ImageProcessing，代码行数:16，代码来源:imagewidget.cpp

示例6: PrintState

static void PrintState(boolean *state) {
    int x, y;
    
    for (y = 0; y < STATE_HEIGHT; y++) {
        printf("    ");

        for (x = 0; x < STATE_WIDTH; x++) {
            printf(GetPixel(state, x, y) ? "X" : "O");
            printf(x != STATE_WIDTH - 1 ? "," : "");
            printf((x + 1) % 5 == 0 ? " " : "");
        }

        printf("\n");
        printf((y + 1) % 5 == 0 ? "\n" : "");
    }
}
开发者ID:minlexx，项目名称:recordmydesktop-pulse，代码行数:16，代码来源:test-rectinsert.c

示例7: GetBlock

void CSampleView::OnLButtonDown(UINT nFlags, CPoint point)
{
	if (!m_iSize)
		return;

	if (point.y > m_clientRect.bottom)
		return;

	int Block = GetBlock(point.x);
	m_iSelStart = GetPixel(Block);
	m_iSelEnd = m_iSelStart;
	Invalidate();
	RedrawWindow();
	m_bClicked = true;
	CStatic::OnLButtonDown(nFlags, point);
}
开发者ID:ayushym，项目名称:nesicide，代码行数:16，代码来源:SampleEditorDlg.cpp

示例8: GetTextRect

//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
void ContextItem::Paint(HDC hDC)
{
	if (m_ItemID == MENUITEM_ID_FOLDER)
		FolderItem::Paint(hDC);
	else
		MenuItem::Paint(hDC);

	if (0==(m_type & MFT_OWNERDRAW))
		return;

	RECT r; GetTextRect(&r);
	int w =  r.right  - r.left;
	int h =  r.bottom - r.top;
	// the remaining margin
	int m = (int)imax(0, w - (m_bmp_width - m_icon_offset));
	// text width
	int tw = w - m;

	HDC buf = CreateCompatibleDC(NULL);
	HGDIOBJ other_bmp = SelectObject(buf, m_bmp);
#if 0
	BitBlt(hDC, r.left, r.top, tw, h, buf, m_icon_offset, 0, SRCCOPY);
#else
	// adjust offset according to justifications
	if (mStyle.MenuFrame.Justify == DT_CENTER)
		m /= 2;
	else
	if (mStyle.MenuFrame.Justify != DT_RIGHT)
		m = 0;

	// then plot points when they seem to have the textcolor
	// icons on the left are cut off
	COLORREF CRTXT_BB = m_bActive ? mStyle.MenuHilite.TextColor : mStyle.MenuFrame.TextColor;
	int x, y;
	for (y = 0; y < h; y++)
		for (x = 0; x < tw; x++)
			if (CRTXT_WIN == GetPixel(buf, x+m_icon_offset, y))
				SetPixel (hDC, r.left+m+x, r.top+y, CRTXT_BB);
#endif

	SelectObject(buf, other_bmp);

	// this let's the handler know which command to invoke eventually
	if (m_bActive)  DrawItem(buf, m_bmp_width, h, true);

	DeleteDC(buf);
}
开发者ID:fin-alice，项目名称:bb4nt，代码行数:48，代码来源:Contextmenu.cpp

示例9: SelectObject

ChessView::ChessView( HWND parent, Contact::ref contact ) 
{   _HWND=parent;
filePathCHESS=appRootPath+L"\\games\\chess\\chess_1.png";
bmpc=SHLoadImageFile(filePathCHESS.c_str());
/*GetObject(bmpc, sizeof(bmc), &bmc);*/
HDC hdcImage2=CreateCompatibleDC(NULL);
    SelectObject(hdcSKIN, bmpc);
SelectObject(hdcImage2, bmpc);
flagaktiv=0;
transparentColorCH=GetPixel(hdcImage2, 0, 0);DeleteDC(hdcImage2);


int Chesspoleinit[9][9]={
	0 , 0, 0, 0, 0, 0, 0, 0, 0,
	0 ,12,13,14,15,16,14,13,12,
	0 ,11,11,11,11,11,11,11,11,
	0 , 0, 0, 0, 0, 0, 0, 0, 0,
	0 , 0, 0, 0, 0, 0, 0, 0, 0,
	0 , 0, 0, 0, 0, 0, 0, 0, 0,
	0 , 0, 0, 0, 0, 0, 0, 0, 0,
	0 , 1, 1, 1, 1, 1, 1, 1, 1,
	0 , 2, 3, 4, 5, 6, 4, 3, 2


};
int cvtp=1;

	for(int x=1;x<=8;x++){for(int y=1;y<=8;y++){
		
		Chesspole[y][x]=Chesspoleinit[y][x];
	
	}}
    BOOST_ASSERT(parent);

    if (windowClass==0)
        windowClass=RegisterWindowClass();
    if (windowClass==0) throw std::exception("Can't create window class");

    parentHWnd=parent;

    this->contact=contact;

    thisHWnd=CreateWindow((LPCTSTR)windowClass, _T("chat"), WS_CHILD |WS_VISIBLE,
        0, 0, 
		CW_USEDEFAULT, CW_USEDEFAULT,
		parent, NULL, g_hInst, (LPVOID)this);
}
开发者ID:m8r-ds1twq，项目名称:bombusng-qd，代码行数:47，代码来源:ChessView.cpp

示例10: OnTimer

VOID OnTimer(HWND hWindow, UINT uID)
{
    POINT point = {};
    static COLORREF previousColor = 0;

    // Получение позиции курсора в экранных координатах.
    GetCursorPos(&point);

    // Получение контекста устройства для всего экрана.
    HDC hDesktopDC = GetDC(NULL);

    // Получение цвета пикселя под курсором.
    g_currentColor = GetPixel(hDesktopDC, point.x, point.y);

    // Освобождение контекста устройства.
    ReleaseDC(NULL, hDesktopDC);

    // Проверка, отличается ли цвет текущего пикселя от цвета предыдущего.
    if (g_currentColor != previousColor)
    {
	    // Формирование строки для последующего вывода на экран.
	    _stprintf_s(g_szText, TEXT("\n  R: %d\n  G: %d\n  B: %d\n\n  #%.2X%.2X%.2X"), 
            GetRValue(g_currentColor), GetGValue(g_currentColor), GetBValue(g_currentColor), 
            GetRValue(g_currentColor), GetGValue(g_currentColor), GetBValue(g_currentColor));

	    // Заполнение белым цветом растрового изображения, выбранного в контекст памяти.
	    PatBlt(g_hMemoryDC, 0, 0, g_clientRectangle.right, g_clientRectangle.bottom, WHITENESS);

	    // Установка цвета кисти, выбранной в контекст устройства.
	    SetDCBrushColor(g_hMemoryDC, g_currentColor);

	    // Рисование прямоугольника, который будет заполнен цветом, соответствующим пикселю под 
        // курсором.
	    Rectangle(g_hMemoryDC, g_colorRectangle.left, g_colorRectangle.top, g_colorRectangle.right, 
            g_colorRectangle.bottom);

	    // Вывод текста, содержащего значения каждой составляющей для текущего цвета.
	    DrawText(g_hMemoryDC, g_szText, _tcslen(g_szText), &g_textRectangle, DT_CENTER);

	    // Отправка приложению сообщения WM_PAINT.
	    InvalidateRect(hWindow, NULL, TRUE);
    }

    // Запоминание текущего цвета.
    previousColor = g_currentColor;
}
开发者ID:ShartepStudy，项目名称:STUDY，代码行数:46，代码来源:WinMain.cpp

示例11: tImg

void cImage::Flip() {
	if ( NULL != mPixels ) {
		cImage tImg( mHeight, mWidth, mChannels );

		for ( eeUint y = 0; y < mHeight; y++ )
			for ( eeUint x = 0; x < mWidth; x++ )
				tImg.SetPixel( y, x, GetPixel( x, mHeight - 1 - y ) );

		ClearCache();

		mPixels = tImg.GetPixels();
		mWidth 	= tImg.Width();
		mHeight = tImg.Height();

		tImg.AvoidFreeImage( true );
	}
}
开发者ID:dogtwelve，项目名称:eepp，代码行数:17，代码来源:cimage.cpp

示例12: GetPixel

/*
*--------------------------------------------------------------------------------
*  函数名:	BeginDraw
*  功能	 :	用当前画刷颜色填充封闭区域
*  参数	 :	CPoint ptPoint	 -   当前的坐标点
*  算法  :	重载函数，调用 API 函数进行填充
*--------------------------------------------------------------------------------
*/
void CPaintTub::BeginDraw(const CPoint& ptPoint)
{
	HDC hDC = m_hDC;

	// 得到当前坐标点的颜色
	COLORREF crCurPos = GetPixel(hDC, ptPoint.x, ptPoint.y);

	HBRUSH hBrush = CreateSolidBrush(m_crPenColor);
	HBRUSH hOldBrush = (HBRUSH) SelectObject(hDC, hBrush);

	// 填充颜色, Windows API
	ExtFloodFill(hDC, ptPoint.x, ptPoint.y, crCurPos, FLOODFILLSURFACE);

	SelectObject(hDC, hOldBrush);
	DeleteObject(hOldBrush);
	DeleteObject(hBrush);
}
开发者ID:obabywawa，项目名称:UPIM，代码行数:25，代码来源:PaintTub.cpp

示例13: GPwritebitmap

int GPwritebitmap (Gbitmap_t *bitmap, FILE *fp) {
    Gwidget_t *widget;
    HDC gc;
    COLORREF color;
    char bufp[2048];
    int bufi, x, y, w, h;

    if (!bitmap) {
        Gerr (POS, G_ERRNOBITMAP);
        return -1;
    }
    if (
        bitmap->canvas < 0 || bitmap->canvas >= Gwidgetn ||
        !Gwidgets[bitmap->canvas].inuse
    ) {
        Gerr (POS, G_ERRBADWIDGETID, bitmap->canvas);
        return -1;
    }
    widget = &Gwidgets[bitmap->canvas];
    if (widget->type != G_CANVASWIDGET && widget->type != G_PCANVASWIDGET) {
        Gerr (POS, G_ERRNOTACANVAS, bitmap->canvas);
        return -1;
    }
    gc = CreateCompatibleDC (GC);
    SelectObject (gc, bitmap->u.bmap.orig);
    fprintf (fp, "P6\n%d %d 255\n", (int) bitmap->size.x, (int) bitmap->size.y);
    bufi = 0;
    w = bitmap->size.x;
    h = bitmap->size.y;
    for (y = 0; y < h; y++) {
        for (x = 0; x < w; x++) {
            color = GetPixel (gc, x, y);
            bufp[bufi++] = GetRValue (color);
            bufp[bufi++] = GetGValue (color);
            bufp[bufi++] = GetBValue (color);
            if (bufi + 3 >= 2048) {
                fwrite (bufp, 1, bufi, fp);
                bufi = 0;
            }
        }
    }
    if (bufi > 0)
        fwrite (bufp, 1, bufi, fp);
    DeleteDC (gc);
    return 0;
}
开发者ID:AhmedAMohamed，项目名称:graphviz，代码行数:46，代码来源:gpcanvas.c

示例14: tooltip_get_cursor_height

/*
 * tooltip_get_cursor_height - マウスカーソルの高さを取得
 */
static int tooltip_get_cursor_height(const HCURSOR hcursor)
{
	HDC hdc, mdc;
	HBITMAP hbmp, ret_hbmp;
	ICONINFO icon_info;
	int width, height;
	int x, y;

	// カーソルの大きさ取得
	width = GetSystemMetrics(SM_CXCURSOR);
	height = GetSystemMetrics(SM_CYCURSOR);

	// カーソル(マスク)の描画
	hdc = GetDC(NULL);
	mdc = CreateCompatibleDC(hdc);
	hbmp = CreateCompatibleBitmap(hdc, width, height);
	ret_hbmp = SelectObject(mdc, hbmp);
	DrawIconEx(mdc, 0, 0, hcursor, width, height, 0, NULL, DI_MASK);

	// カーソルの高さ取得
	for (y = height - 1; y >= 0; y--) {
		for (x = 0; x < width; x++) {
			if (GetPixel(mdc, x, y) != RGB(255, 255, 255)) {
				break;
			}
		}
		if (x < width) {
			break;
		}
	}
	SelectObject(mdc, ret_hbmp);
	DeleteObject(hbmp);
	DeleteDC(mdc);
	ReleaseDC(NULL, hdc);

	// ホットスポットの位置を取得
	ZeroMemory(&icon_info, sizeof(ICONINFO));
	GetIconInfo(hcursor, &icon_info);
	if (icon_info.hbmMask != NULL) {
		DeleteObject(icon_info.hbmMask);
	}
	if (icon_info.hbmColor != NULL) {
		DeleteObject(icon_info.hbmColor);
	}
	return (((y < 0) ? height : y) - icon_info.yHotspot);
}
开发者ID:tobynet，项目名称:clcl，代码行数:49，代码来源:ToolTip.c

示例15: createGrayBitmap

HBITMAP createGrayBitmap( HBITMAP srcBmp, COLORREF transparent )
{
	HBITMAP destBmp = NULL;

	BITMAP bitmap;
	HDC dcMem = NULL, dcSrc = NULL;
	HBITMAP bmpOldSrc = NULL, bmpOldMem = NULL;

	if( ( dcMem = CreateCompatibleDC( NULL ) ) && ( dcSrc = CreateCompatibleDC( NULL ) ) )
	{
		GetObject( srcBmp, sizeof( bitmap ), &bitmap );

		if( ( destBmp = CreateBitmap( bitmap.bmWidth, bitmap.bmHeight,
			bitmap.bmPlanes, bitmap.bmBitsPixel, NULL ) ) )
		{
			bmpOldMem = (HBITMAP)SelectObject( dcMem, destBmp );
			bmpOldSrc = (HBITMAP)SelectObject( dcSrc, srcBmp );

			if( bmpOldMem && bmpOldSrc )
			{
				BitBlt( dcMem, 0, 0, bitmap.bmWidth, bitmap.bmHeight,
					dcSrc, 0, 0, SRCCOPY );
				for( int i = 0; i < bitmap.bmWidth; ++i )
					for( int j = 0; j < bitmap.bmHeight; ++j )
					{
						COLORREF color = GetPixel( dcMem, i, j );
						if( color != transparent )
						{
							double grayScale = GetRValue( color ) * 0.3 +
								GetGValue( color ) * 0.59 +
								GetBValue( color ) * 0.11;
							grayScale = grayScale / 2 + 128;
							color = RGB( grayScale, grayScale, grayScale );
							SetPixel( dcMem, i, j, color );
						}
					}
				SelectObject( dcSrc, bmpOldSrc );
				SelectObject( dcMem, bmpOldMem );
			}
		}
	}

	if( dcMem )	DeleteDC( dcMem );
	if( dcSrc )	DeleteDC( dcSrc );
	return destBmp;
}
开发者ID:siredblood，项目名称:tree-bumpkin-project，代码行数:46，代码来源:gui_bitmap.cpp


注：本文中的GetPixel函数示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。