[每日一码] 刷新图形显示窗口（REDRAW）
int UpdateAcadGrphWindow(void){
AcTransactionManager *pAcTransactionManager=actrTransactionManager;
if (pAcTransactionManager)
{
pAcTransactionManager->queueForGraphicsFlush();
pAcTransactionManager->flushGraphics();
}
acedUpdateDisplay();
return TRUE;
}
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