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Commitff3334d

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Merge pull request#788 from leonardocavagnis/h7_video_emwin_example
Arduino_H7_Video: Adding SEGGER emWin example
2 parentsfcc63d9 +e15288a commitff3334d

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‎.github/workflows/compile-examples.yml‎

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- name: ArduinoBLE
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- name: ArduinoGraphics
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- name: Arduino_GigaDisplayTouch
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- name: emWin
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additional-sketch-paths:|
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- libraries/PDM
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- libraries/doom
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- name: ArduinoGraphics
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- name: Arduino_GigaDisplayTouch
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- name: arducam_dvp
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- name: emWin
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additional-sketch-paths:|
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- libraries/PDM
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- libraries/MCUboot

‎libraries/Arduino_H7_Video/docs/README.md‎

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- **[ArduinoLogo](../examples/ArduinoLogo):** This example demonstrates how to display an Arduino logo image on the screen.
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- **[ArduinoLogoDrawing](../examples/ArduinoLogoDrawing):** This example demonstrates how to draw an Arduino logo image using graphics primitives (line, circle, rect, etc.).
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- **[LVGLDemo](../examples/LVGLDemo):** This example demonstrates how to create a graphical user interface (GUI) using the LVGL library. It includes the [Arduino_GigaDisplayTouch](https://github.com/arduino-libraries/Arduino_GigaDisplayTouch/) library to handle touch events.
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- **[emWinDemo](../examples/emWinDemo):** This example demonstrates how to create a graphical user interface (GUI) using the SEGGER emWin library. It includes the [emWin-Arduino-Library](https://github.com/SEGGERMicro/emWin-Arduino-Library) library.
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## Guides
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To learn more about usage of this library, you can check out the following guides:
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- [GIGA Display Shield LVGL Guide](https://docs.arduino.cc/tutorials/giga-display-shield/lvgl-guide).
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- [GIGA Display Shield Image Orientation Guide](https://docs.arduino.cc/tutorials/giga-display-shield/image-orientation)
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- [GIGA Display Shield Image Draw Guide](https://docs.arduino.cc/tutorials/giga-display-shield/basic-draw-and-image)
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You can also check out the following guide available in the Segger Wiki:
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- using the SEGGER emWin library on the GIGA Display Shield, check out the [SEGGER emWin on Arduino Wiki](https://wiki.segger.com/emWin_on_Arduino).
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## API
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/*
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emWinDemo
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created 04 Dec 2023
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by Leonardo Cavagnis
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*/
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#include"DIALOG.h"/* emWin library includes Arduino_H7_Video and Arduino_GigaDisplayTouch library*/
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/*
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* Main window handler: It creates 4 window childs.
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* Source: https://wiki.segger.com/WM_child_windows_(Sample)
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*/
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staticvoid_cbWin(WM_MESSAGE * pMsg) {
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switch (pMsg->MsgId) {
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case WM_CREATE:
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/* [0, 0] - Image*/
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WM_CreateWindowAsChild(20,20,370,210, pMsg->hWin, WM_CF_SHOW, _cbChildWinImg,0);
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/* [1, 0] - Slider*/
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WM_CreateWindowAsChild(20,210+20*2,370,210, pMsg->hWin, WM_CF_SHOW, _cbChildWinSlider,0);
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/* [0, 1] - Checkbox, button and labels*/
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WM_CreateWindowAsChild(370+20*2,20,370,210, pMsg->hWin, WM_CF_SHOW, _cbChildWinChkBtn,0);
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/* [1, 1] - Progress bar*/
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WM_CreateWindowAsChild(370+20*2,210+20*2,370,210, pMsg->hWin, WM_CF_SHOW, _cbChildWinPgrBar,0);
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break;
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case WM_PAINT:
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GUI_SetBkColor(0x03989e);/* Background color set to: R(0x03),G(0x98),B(0x9E)*/
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GUI_Clear();
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break;
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default:
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WM_DefaultProc(pMsg);
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break;
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}
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}
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/*
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* Image window handler
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* To convert image use "Bitmap Converter for emWin"
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* https://www.segger.com/products/user-interface/emwin/tools/tools-overview/
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*/
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extern GUI_CONST_STORAGE GUI_BITMAP bmarduinologo;/* Image bitmap structure (see img_arduinologo_emwin.c in attach)*/
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staticvoid_cbChildWinImg(WM_MESSAGE * pMsg) {
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switch (pMsg->MsgId) {
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case WM_CREATE:
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break;
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case WM_PAINT:
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GUI_SetBkColor(GUI_WHITE);
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GUI_Clear();
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/* Draw image*/
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GUI_DrawBitmap(&bmarduinologo,85,35);
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break;
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default:
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WM_DefaultProc(pMsg);
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break;
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}
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}
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/*
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* Slider window handler
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* Source: https://wiki.segger.com/SLIDER_-_Usage_(Sample)
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*/
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staticvoid_cbChildWinSlider(WM_MESSAGE * pMsg) {
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static WM_HWIN hSlider;
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int NCode, Id;
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int Value;
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char acBuffer[32];
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switch(pMsg->MsgId) {
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case WM_CREATE:
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/* Create horizonzal slider*/
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hSlider =SLIDER_CreateEx(110,90,150,30, pMsg->hWin, WM_CF_SHOW, SLIDER_CF_HORIZONTAL, GUI_ID_SLIDER0);
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/* Set range of slider*/
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SLIDER_SetRange(hSlider,0,100);
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/* Set number of tick marks*/
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SLIDER_SetNumTicks(hSlider,10);
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/* Set value of slider*/
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SLIDER_SetValue(hSlider,20);
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/* Set width of thumb*/
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SLIDER_SetWidth(hSlider,20);
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break;
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case WM_PAINT:
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GUI_SetBkColor(GUI_WHITE);
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GUI_Clear();
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GUI_SetFont(&GUI_Font13B_1);
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GUI_SetColor(GUI_BLACK);
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/* Display slider value*/
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Value =SLIDER_GetValue(hSlider);
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sprintf(acBuffer,"Value: %d", Value);
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GUI_DispStringAt(acBuffer,110,120);
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break;
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case WM_NOTIFY_PARENT:
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Id =WM_GetId(pMsg->hWinSrc);
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NCode = pMsg->Data.v;
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switch(Id) {
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case GUI_ID_SLIDER0:
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switch(NCode) {
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case WM_NOTIFICATION_VALUE_CHANGED:
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/* Redraw the window when a value has changed so the displayed value will be updated*/
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WM_InvalidateWindow(pMsg->hWin);
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break;
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}
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break;
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}
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break;
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default:
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WM_DefaultProc(pMsg);
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}
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}
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/*
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* Checkbox&Button window handler
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* Source:
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* https://wiki.segger.com/CHECKBOX_-_Usage_(Sample)
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* https://wiki.segger.com/BUTTON_-_Usage_(Sample)
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*/
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#defineID_BUTTON1
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staticvoid_cbChildWinChkBtn(WM_MESSAGE * pMsg) {
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static WM_HWIN hBox;
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BUTTON_Handle hButton;
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int NCode, Id;
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char acBuffer[32];
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int State;
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staticint Clicked, Released;
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switch(pMsg->MsgId) {
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case WM_CREATE:
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/* Create CHECKBOX widget*/
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hBox =CHECKBOX_CreateEx(10,30,80,20, pMsg->hWin, WM_CF_SHOW,0, GUI_ID_CHECK0);
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/* Edit widget properties*/
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CHECKBOX_SetText(hBox,"Check");
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CHECKBOX_SetTextColor(hBox, GUI_BLACK);
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CHECKBOX_SetFont(hBox, &GUI_Font16_1);
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/* Set number of possible states to 3 (if needed). The minimum number of states is 2 and the maximum is 3*/
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CHECKBOX_SetNumStates(hBox,3);
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/* Manually set the state*/
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CHECKBOX_SetState(hBox,1);
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/* Create a button*/
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hButton =BUTTON_CreateEx(10,100,80,20, pMsg->hWin, WM_CF_SHOW,0, ID_BUTTON);
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BUTTON_SetText(hButton,"Click me");
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break;
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case WM_PAINT:
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GUI_SetBkColor(GUI_WHITE);
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GUI_Clear();
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GUI_SetFont(&GUI_Font16_1);
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GUI_SetColor(GUI_BLACK);
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/* Display current CHECKBOX state*/
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State =CHECKBOX_GetState(hBox);
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sprintf(acBuffer,"State of checkbox: %d", State);
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GUI_DispStringAt(acBuffer,10,60);
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/* Check button state and print info on labels*/
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if(Clicked) {
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sprintf(acBuffer,"Button was clicked at: %d.", Clicked);
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GUI_DispStringAt(acBuffer,10,130);
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}
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if(Released) {
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sprintf(acBuffer,"Button was released at: %d.", Released);
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GUI_DispStringAt(acBuffer,10,150);
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}
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break;
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case WM_NOTIFY_PARENT:
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/* Get Id of sender window and notification code*/
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Id =WM_GetId(pMsg->hWinSrc);
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NCode = pMsg->Data.v;
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switch (Id) {
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case GUI_ID_CHECK0:
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switch(NCode) {
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case WM_NOTIFICATION_VALUE_CHANGED:
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/* When the value of the checkbox changed, redraw parent window to update the display of the state*/
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WM_InvalidateWindow(pMsg->hWin);
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break;
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}
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break;
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case ID_BUTTON:
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switch(NCode) {
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case WM_NOTIFICATION_CLICKED:
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Clicked =GUI_GetTime();
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WM_InvalidateWindow(pMsg->hWin);
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break;
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case WM_NOTIFICATION_RELEASED:
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Released =GUI_GetTime();
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WM_InvalidateWindow(pMsg->hWin);
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break;
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}
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break;
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break;
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}
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break;
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default:
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WM_DefaultProc(pMsg);
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}
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}
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/*
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* Progress bar window handler
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* Source: https://wiki.segger.com/PROGBAR_-_Custom_(Sample)
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*/
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PROGBAR_Handle hProg;
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staticvoid_cbChildWinPgrBar(WM_MESSAGE * pMsg) {
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GUI_RECT Rect;
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float ValueF;
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int Value;
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char acBuffer[16];
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switch (pMsg->MsgId) {
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case WM_CREATE:
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hProg =PROGBAR_CreateEx(85,90,200,30, pMsg->hWin, WM_CF_SHOW, PROGBAR_CF_HORIZONTAL, GUI_ID_PROGBAR0);
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WM_SetCallback(hProg, _cbProgbar);
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break;
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case WM_PAINT:
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GUI_SetBkColor(GUI_WHITE);
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GUI_Clear();
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break;
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default:
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WM_DefaultProc(pMsg);
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break;
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}
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}
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/*
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* Progress bar widget handler
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* Source: https://wiki.segger.com/PROGBAR_-_Custom_(Sample)
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*/
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staticvoid_cbProgbar(WM_MESSAGE * pMsg) {
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GUI_RECT Rect;
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float ValueF;
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int Value;
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char acBuffer[16];
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switch (pMsg->MsgId) {
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case WM_PAINT:
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GUI_SetBkColor(GUI_WHITE);
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GUI_Clear();
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/* Draw progress bar*/
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WM_GetClientRect(&Rect);
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GUI_SetColor(GUI_BLACK);
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GUI_AA_DrawRoundedRectEx(&Rect,3);
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Value =PROGBAR_GetValue(pMsg->hWin);
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ValueF = Value /100.0F;
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sprintf(acBuffer,"Progress: %d%%", Value);
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Rect.x0 +=2;
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Rect.y0 +=2;
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Rect.x1 -=2;
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Rect.y1 -=2;
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Rect.x1 = Rect.x1 * (ValueF);
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GUI_SetColor(GUI_GRAY_9A);
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GUI_AA_FillRoundedRectEx(&Rect,1);
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WM_GetClientRect(&Rect);
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Rect.x0 +=2;
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Rect.y0 +=2;
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Rect.x1 -=2;
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Rect.y1 -=2;
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GUI_SetColor(GUI_BLACK);
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GUI_SetTextMode(GUI_TM_TRANS);
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GUI_SetFont(&GUI_Font16B_1);
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GUI_DispStringInRect(acBuffer, &Rect, GUI_TA_HCENTER | GUI_TA_VCENTER);
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break;
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default:
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PROGBAR_Callback(pMsg);
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break;
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}
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}
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int progbarCnt =0;
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unsignedlong previousMillis =0;
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voidsetup() {
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/* Init SEGGER emWin library. It also init display and touch controller*/
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GUI_Init();
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LCD_ROTATE_SetSel(1);/* Set landscape mode*/
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WM_MULTIBUF_Enable(1);/* Enable multi buffering mode for Windows manager*/
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/* Create the main window. It will include all the sub-windows*/
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WM_CreateWindowAsChild(0,0,LCD_GetXSize(),LCD_GetYSize(), WM_HBKWIN, WM_CF_SHOW, _cbWin,0);
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}
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voidloop() {
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/* Update progress bar value*/
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if (millis() - previousMillis >=100) {
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previousMillis =millis();
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progbarCnt++;
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if (progbarCnt >100) {
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progbarCnt =0;
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}
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PROGBAR_SetValue(hProg, progbarCnt);
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WM_InvalidateWindow(hProg);/* Make sure the entire PROGBAR gets redrawn*/
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}
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/* Keep emWin alive, handle touch and other stuff*/
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GUI_Exec();
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}

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