pixmap

基本解釋

Delete the selected item's pixmap.
14刪除選擇項(xiàng)目的點(diǎn)陣圖。
A backing pixmap is allocated when the window is shown, and is deallocated when it becomes hidden.
一個(gè)背景象素映射是當(dāng)window 顯示時(shí)分配,當(dāng)隱藏的時(shí)候釋放。
To show a rotating object, we can scan-convert into the pixmap successive views from slightly different locations, one after another.
比如要顯示一個(gè)旋轉(zhuǎn)的物體，我們需要在前后連貫，變化不大的視點(diǎn)上一次接一次地進(jìn)行掃描轉(zhuǎn)換。
To display animations with raster systems, animated objects (which may consist of graphical primitives such as lines, polygons, and so on) must be scan-converted into their pixmap in the frame buffer.
為了在光柵系統(tǒng)中顯示動(dòng)畫(huà)，必須將運(yùn)動(dòng)物體(由如線(xiàn)，多邊形這樣的圖元組成)經(jīng)掃描轉(zhuǎn)換變?yōu)榭稍趲彺娣诺奈粓D。
/* free the pixmap with the given ID. */XFreePixmap(display, pixmap);
在釋放一個(gè)pixmap之后 - 我們絕對(duì)不能再訪問(wèn)它。