emwin 存储设备旋转后不显示

grf

直接用手册例程 可以旋转并且显示，代码如下
  GUI_MEMDEV_Handle hMemSource;
  GUI_MEMDEV_Handle hMemDest;
  GUI_RECT RectSource = { 0, 0, 69, 39 };
  GUI_RECT RectDest = { 0, 0, 79, 79 };
  hMemSource = GUI_MEMDEV_CreateFixed(RectSource.x0, RectSource.y0,
          RectSource.x1 - RectSource.x0 + 1,
          RectSource.y1 - RectSource.y0 + 1,
          GUI_MEMDEV_NOTRANS,
          GUI_MEMDEV_APILIST_32, GUI_COLOR_CONV_888);
  hMemDest = GUI_MEMDEV_CreateFixed(RectDest.x0, RectDest.y0,
          RectDest.x1 - RectDest.x0 + 1,
          RectDest.y1 - RectDest.y0 + 1,
          GUI_MEMDEV_NOTRANS,
          GUI_MEMDEV_APILIST_32, GUI_COLOR_CONV_888);
  GUI_MEMDEV_Select(hMemSource);
  GUI_DrawGradientV(RectSource.x0, RectSource.y0,
          RectSource.x1, RectSource.y1,
          GUI_WHITE, GUI_DARKGREEN);
  GUI_SetColor(GUI_BLUE);
  GUI_SetFont(&GUI_Font20B_ASCII);
  GUI_SetTextMode(GUI_TM_TRANS);
  GUI_DispStringInRect("emWin", &RectSource, GUI_TA_HCENTER | GUI_TA_VCENTER);
  GUI_DrawRect(0, 0, RectSource.x1, RectSource.y1);
  GUI_MEMDEV_Select(hMemDest);
  GUI_Clear();
  GUI_MEMDEV_Select(0);
  GUI_MEMDEV_RotateHQ(hMemSource, hMemDest,
          (RectDest.x1 - RectSource.x1) / 2,
          (RectDest.y1 - RectSource.y1) / 2,
          30 * 1000,
          1000);
  GUI_MEMDEV_CopyToLCDAt(hMemSource, 10, (RectDest.y1 - RectSource.y1) / 2);
  GUI_MEMDEV_CopyToLCDAt(hMemDest, 100, 0);


但是把
  hMemSource = GUI_MEMDEV_CreateFixed(RectSource.x0, RectSource.y0,
          RectSource.x1 - RectSource.x0 + 1,
          RectSource.y1 - RectSource.y0 + 1,
          GUI_MEMDEV_NOTRANS,
          GUI_MEMDEV_APILIST_1, GUI_COLOR_CONV_1);
  hMemDest = GUI_MEMDEV_CreateFixed(RectDest.x0, RectDest.y0,
          RectDest.x1 - RectDest.x0 + 1,
          RectDest.y1 - RectDest.y0 + 1,
          GUI_MEMDEV_NOTRANS,
          GUI_MEMDEV_APILIST_1, GUI_COLOR_CONV_1);

改成这样 就不能显示了，有遇到过这样的问题的朋友吗

正点原子

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