2023年8月27日 · BitBlt 函数执行与像素矩形相对应的颜色数据的位块传输,从指定的源设备上下文传输到目标设备上下文。 语法. BOOL ...
2021年10月12日 · The BitBlt function performs a bit-block transfer of the color data corresponding to a rectangle of pixels from the specified source device context into a ...
Bit blit
位元塊傳輸是電腦圖形學中常用的一種資料操作,其中使用布林函數將多個位圖組合成一個。
該操作至少涉及兩個位圖:“來源”和“目標”,可能還有第三個點陣圖,通常稱為“遮罩”。結果可以寫入第四個位圖,儘管它通常會取代目標。每個像素都使用程式可選擇的光柵操作(逐位布林公式)進行組合。最明顯的光柵操作會用來源覆蓋目標。 维基百科(英文)
BitBlt:. 要將DC的圖像轉移,我們可以用BitBlt這API函數,其宣告法是:. Declare Function BitBlt Lib "gdi32" Alias "BitBlt" (ByVal hDestDC As Long, ByVal x As Long, ...
Once we've gotten the dimentions of the bitmap filled into the BITMAP struct, we can call BitBlt() to copy the image from our Memory DC to the Window DC, thus ...
2008年1月7日 · Bitblt combined a rectangle of a source image with a similarly-sized rectangle in a destination image using a boolean function and replaced the destination ...
This method performs a bit-block transfer of the color data corresponding to a rectangle of pixels from the specified source device context into a destination ...
This routine implements the equivalent Windows GDI API of the same name in all platforms supported by Lazarus. It copies a section of a Canvas to another one, ...
2016年9月16日 · I work on a small real-time project where a fast bitmap rendering technique is quite necessary. I need to display many(hundreds) small blocks in a picturebox ...
A frequent task of the display driver is to copy data form one location to another e.g. from a bitmap to the framebuffer. This copy operation is called a Blit.