#define Canvas(sName, pParent, pNext, pChild, pDisplay, lX, lY, lWidth,lHeight, ulStyle, ulFillColor, ulOutlineColor, ulTextColor,pFont, pcText, pucImage, pfnOnPaint) \
tCanvasWidget sName = CanvasStruct(pParent, pNext, pChild, pDisplay, lX, lY, lWidth,lHeight, ulStyle, ulFillColor, ulOutlineColor,ulTextColor, pFont, pcText, pucImage, pfnOnPaint)
这个宏替换是什么意思?
图形库API函数说明