请赐offscreen使用代码！

[likepvc]

如题，谢谢！

[winderxp]

win_hOldDraw = WinGetDrawWindow ();
//创建临时缓冲离屏窗口

win_hTemp = WinCreateOffscreenWindow (160, 160,nativeFormat, &error);
ErrFatalDisplayIf (error, "Create temp offscreen window failure!");
WinGetBounds(win_hTemp, &back_rect);

WinSetDrawWindow (win_hTemp);


//释放离屏窗口
WinDeleteWindow(win_hTemp, false);

[winderxp]

win_hOldDraw = WinGetDrawWindow ();
//创建临时缓冲离屏窗口

win_hTemp = WinCreateOffscreenWindow (160, 160,nativeFormat, &error);
ErrFatalDisplayIf (error, "Create temp offscreen window failure!");
WinGetBounds(win_hTemp, &back_rect);

WinSetDrawWindow (win_hTemp);

//在这里和平常一样画图


//在这里和平常一样画图

//拷贝
WinSetDrawWindow (win_hOldDraw);
WinCopyRectangle (win_hTemp, win_hOldDraw, &back_rect, 0, 0, winPaint);


//释放离屏窗口
WinDeleteWindow(win_hTemp, false);