SEGGER - Florian Administrator

  • Member since Oct 24th 2019

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  • SEGGER - Florian -

    Replied to the thread draw bitmap/gif from sd card using HAL library and SDIO.

    Post
    Hi, GUI_BMP_DrawEx() expects a pointer to a GetData function as first and the file handle as second parameter. The GetData function reads the file using the file handle, so that emWin can draw the BMP image with the data that was read. There is an…
  • SEGGER - Florian -

    Replied to the thread Noto Sans Arabic font stops displaying after GUI_UC_EnableBIDI(1).

    Post
    Hi, did you set the encoding of emWin to UTF-8? You can do this by calling GUI_UC_SetEncodeUTF8(). Furthermore you should make sure that the font you are using includes the Arabic presentation forms. These characters are located in the area 0xFE70 -…
  • SEGGER - Florian -

    Replied to the thread Place image on button.

    Post
    Hi, the best way would be to overwrite the callback of the BUTTON. By doing this, only your callback will determine how the BUTTON is being drawn. You can find a sample in the wiki that demonstrates, how this can be done. Best regards, Florian
  • SEGGER - Florian -

    Replied to the thread How to plot data every 2 seconds on a YT Graph?.

    Post
    Hi, you can edit the properties of the attached scale object using the GRAPH_SCALE_... functions. To change the numbers shown on the scale, GRAPH_SCALE_SetFactor() and GRAPH_SCALE_SetTickDist() are used. Best regards, Florian
  • SEGGER - Florian -

    Replied to the thread Updating variable values dynamically.

    Post
    Hi, you can get the handle of the TEXT widget by calling WM_GetDialogItem(hParent, ID_TEXT_0) where hParent is the parent window of the child window. In this case, the dialog is the parent of the TEXT widget. In your function _UpdateText(), you can't…
  • SEGGER - Florian -

    Replied to the thread Updating variable values dynamically.

    Post
    Hi, when you are displaying a new value, it is written above the old value. Therefore, the background of the value has to be cleared, so that only the new value is visible in the end. You can clear the background of a window with GUI_Clear(). Note that…
  • SEGGER - Florian -

    Replied to the thread Font Converter issue.

    Post
    Hi, the Font Converter shows a dialog when trying to overwrite an existing file, though. Nonetheless, you do have a point, we will consider improving the file naming in the tool. Best regards, Florian
  • SEGGER - Florian -

    Replied to the thread Font converter enlarge issue.

    Post
    Hi, this only applies to the fonts that are included in emWin, not fonts generated by the Font Converter. These standard fonts are listed in the manual as "GUI_FONT...". You could use TTF fonts to generate the font with a desired font size during…
  • SEGGER - Florian -

    Replied to the thread Font Converter issue.

    Post
    Hi, the Font Converter always adds the pixel height of the font to the file name, not just the height of a character. The pixel height includes the spacing above and below a character, therefore the height can be the same with different point…
  • SEGGER - Florian -

    Replied to the thread emWin and STM32H745I-DISCO example.

    Post
    Hi, your display driver may not be configured correctly. Unfortunately, we do not currently have a ready-to-use LCDConf.c for the board you are using, so you might want to contact ST about this issue. It could also be a hardware error. Sometimes the…
  • SEGGER - Florian -

    Replied to the thread Updating variable values dynamically.

    Post
    Hi, the values are getting written onto the display all at once. You can add a delay to the for-loop to see the value getting updated. To do that, use GUI_Delay(ms). Best regards, Florian
  • SEGGER - Florian -

    Replied to the thread Graph widget is too slow.

    Post
    Hi, you would have to add more values at once in order for the curve to update faster. Every value added with GRAPH_DATA_YT_AddValue() only equates to 1px in width of the curve. It makes sense to store the values in an array, if they are not dynamic,…
  • SEGGER - Florian -

    Replied to the thread GIF image drawing.

    Post
    Hi, if you convert a GIF image to a C array, you simply have to call IMAGE_SetGIF() and the GIF will be drawn automatically (all subimages and time delays). The best way to extract the subimages probably would be GIMP. When loading the GIF image, you…
  • SEGGER - Florian -

    Replied to the thread GIF image drawing.

    Post
    Hi, you would achieve the best performance with memory devices, however, you would probably need a lot of RAM to create a device for every sub-image (depending on the image size). I would recommend to save and draw each sub-image as a C bitmap. Drawing…
  • Hi, the key input from the client should be sent to the VNC server. In emWin, there are two ways to react on keyboard input. It depends whether you are using the window manager, or not. When using the window manager, have to react on the WM_KEY…
  • SEGGER - Florian -

    Replied to the thread Disbale Windows Manager.

    Post
    Hi, Quote from bio_med: “GUI_TOUCH_CalcCoefficients(NUM_TOUCHSCREEN_CAL_POINTS, ReferenceX, ReferenceY, SampleX, SampleY, X_Size, Y_Size); ” this routine is used for calibration. Before you can do that, the touch points have to be retrieved from the…
  • SEGGER - Florian -

    Replied to the thread Disbale Windows Manager.

    Post
    Hi, I forgot to mention that the sample cannot be used on capacitive touchscreens. Are you using a capacitive or a resistive touchscreen? And how do you pass the data sent by the touch controller to emWin? Best regards, Florian
  • SEGGER - Florian -

    Replied to the thread Disbale Windows Manager.

    Post
    Hi, I cannot really say what is going wrong without knowing which hardware you are using or what you are doing after the calibration in your application. Can you provide me some information and code to reproduce the behavior? Thanks and best…
  • SEGGER - Florian -

    Replied to the thread ​Bitmap Converter File Open Problem​.

    Post
    Update: We have fixed the bug and uploaded a new demo version onto the website. Best regards, Florian
  • SEGGER - Florian -

    Replied to the thread ​Bitmap Converter File Open Problem​.

    Post
    Hi, we were able to reproduce the behavior and are looking into it. I found that the file dialog would still be opened when pressing CTRL + O. Best regards, Florian