diff --git a/Marlin/src/HAL/STM32/Sd2Card_sdio_stm32duino.cpp b/Marlin/src/HAL/STM32/Sd2Card_sdio_stm32duino.cpp
index 05f859a4af5..55e807f94ee 100644
--- a/Marlin/src/HAL/STM32/Sd2Card_sdio_stm32duino.cpp
+++ b/Marlin/src/HAL/STM32/Sd2Card_sdio_stm32duino.cpp
@@ -290,13 +290,13 @@ static bool SDIO_ReadWriteBlock_DMA(uint32_t block, const uint8_t *src, uint8_t
bool SDIO_ReadBlock(uint32_t block, uint8_t *dst) {
uint8_t retries = SDIO_READ_RETRIES;
- while (retries--) if (SDIO_ReadWriteBlock_DMA(block, NULL, dst)) return true;
+ while (retries--) if (SDIO_ReadWriteBlock_DMA(block, nullptr, dst)) return true;
return false;
}
bool SDIO_WriteBlock(uint32_t block, const uint8_t *src) {
uint8_t retries = SDIO_READ_RETRIES;
- while (retries--) if (SDIO_ReadWriteBlock_DMA(block, src, NULL)) return true;
+ while (retries--) if (SDIO_ReadWriteBlock_DMA(block, src, nullptr)) return true;
return false;
}
diff --git a/Marlin/src/HAL/STM32F1/SPI.h b/Marlin/src/HAL/STM32F1/SPI.h
index 828644f1ddb..2467432e071 100644
--- a/Marlin/src/HAL/STM32F1/SPI.h
+++ b/Marlin/src/HAL/STM32F1/SPI.h
@@ -138,8 +138,8 @@ private:
spi_dev *spi_d;
dma_channel spiRxDmaChannel, spiTxDmaChannel;
dma_dev* spiDmaDev;
- void (*receiveCallback)() = NULL;
- void (*transmitCallback)() = NULL;
+ void (*receiveCallback)() = nullptr;
+ void (*transmitCallback)() = nullptr;
friend class SPIClass;
};
diff --git a/Marlin/src/lcd/extui/mks_ui/draw_cloud_bind.cpp b/Marlin/src/lcd/extui/mks_ui/draw_cloud_bind.cpp
index 55cfe4491d4..56b0e8f5caf 100644
--- a/Marlin/src/lcd/extui/mks_ui/draw_cloud_bind.cpp
+++ b/Marlin/src/lcd/extui/mks_ui/draw_cloud_bind.cpp
@@ -33,8 +33,8 @@
extern lv_group_t * g;
static lv_obj_t * scr;
-static lv_obj_t *button_bind_or_not = NULL, *label_bind_or_not = NULL;
-static lv_obj_t *buttonReleaseBind = NULL, *label_ReleaseBind = NULL;
+static lv_obj_t *button_bind_or_not = nullptr, *label_bind_or_not = nullptr;
+static lv_obj_t *buttonReleaseBind = nullptr, *label_ReleaseBind = nullptr;
static lv_obj_t * text_id;
static uint8_t unbinding_flag = 0;
@@ -61,29 +61,29 @@ static void event_handler(lv_obj_t * obj, lv_event_t event) {
}
void lv_draw_cloud_bind() {
- lv_obj_t *buttonBack = NULL, *label_Back = NULL;
+ lv_obj_t *buttonBack = nullptr, *label_Back = nullptr;
scr = lv_screen_create(BIND_UI);
- button_bind_or_not = lv_btn_create(scr, NULL);
+ button_bind_or_not = lv_btn_create(scr, nullptr);
lv_obj_set_pos(button_bind_or_not, TFT_WIDTH - 130, TFT_HEIGHT - 80 * 3);
lv_obj_set_size(button_bind_or_not, PARA_UI_VALUE_BTN_X_SIZE + 15, PARA_UI_VALUE_BTN_Y_SIZE + 15);
- lv_obj_set_event_cb_mks(button_bind_or_not, event_handler, ID_CLOUD_BIND_OR_NOT, NULL, 0);
+ lv_obj_set_event_cb_mks(button_bind_or_not, event_handler, ID_CLOUD_BIND_OR_NOT, nullptr, 0);
lv_btn_set_style(button_bind_or_not, LV_BTN_STYLE_REL, &style_para_value);
lv_btn_set_style(button_bind_or_not, LV_BTN_STYLE_PR, &style_para_value);
label_bind_or_not = lv_label_create_empty(button_bind_or_not);
- buttonReleaseBind = lv_btn_create(scr, NULL);
+ buttonReleaseBind = lv_btn_create(scr, nullptr);
lv_obj_set_pos(buttonReleaseBind, TFT_WIDTH - 130, TFT_HEIGHT - 80 * 2);
lv_obj_set_size(buttonReleaseBind, PARA_UI_VALUE_BTN_X_SIZE + 15, PARA_UI_VALUE_BTN_Y_SIZE + 15);
- lv_obj_set_event_cb_mks(buttonReleaseBind, event_handler, ID_CLOUD_RELEASE_BIND, NULL, 0);
+ lv_obj_set_event_cb_mks(buttonReleaseBind, event_handler, ID_CLOUD_RELEASE_BIND, nullptr, 0);
label_ReleaseBind = lv_label_create_empty(buttonReleaseBind);
lv_label_set_text(label_ReleaseBind, cloud_menu.unbind);
lv_obj_align(label_ReleaseBind, buttonReleaseBind, LV_ALIGN_CENTER, 0, 0);
- buttonBack = lv_btn_create(scr, NULL);
+ buttonBack = lv_btn_create(scr, nullptr);
lv_obj_set_pos(buttonBack, TFT_WIDTH - 130, TFT_HEIGHT - 80);
lv_obj_set_size(buttonBack, PARA_UI_VALUE_BTN_X_SIZE + 15, PARA_UI_VALUE_BTN_Y_SIZE + 15);
- lv_obj_set_event_cb_mks(buttonBack, event_handler, ID_CLOUD_BIND_RETURN, NULL, 0);
+ lv_obj_set_event_cb_mks(buttonBack, event_handler, ID_CLOUD_BIND_RETURN, nullptr, 0);
lv_btn_set_style(buttonBack, LV_BTN_STYLE_REL, &style_para_back);
lv_btn_set_style(buttonBack, LV_BTN_STYLE_PR, &style_para_back);
label_Back = lv_label_create_empty(buttonBack);
diff --git a/Marlin/src/lcd/extui/mks_ui/draw_dialog.cpp b/Marlin/src/lcd/extui/mks_ui/draw_dialog.cpp
index 3f2cd32c737..44cee6cb603 100644
--- a/Marlin/src/lcd/extui/mks_ui/draw_dialog.cpp
+++ b/Marlin/src/lcd/extui/mks_ui/draw_dialog.cpp
@@ -431,7 +431,7 @@ void lv_draw_dialog(uint8_t type) {
}
else if (DIALOG_IS(TYPE_UPDATE_ESP_FIRMWARE)) {
lv_label_set_text(labelDialog, DIALOG_UPDATE_WIFI_FIRMWARE_EN);
- lv_obj_align(labelDialog, NULL, LV_ALIGN_CENTER, 0, -20);
+ lv_obj_align(labelDialog, nullptr, LV_ALIGN_CENTER, 0, -20);
}
#endif // MKS_WIFI_MODULE
else if (DIALOG_IS(TYPE_FILAMENT_LOAD_HEAT)) {
@@ -469,7 +469,7 @@ void lv_draw_dialog(uint8_t type) {
#if ENABLED(MKS_WIFI_MODULE)
else if (DIALOG_IS(TYPE_UNBIND)) {
lv_label_set_text(labelDialog, common_menu.unbind_printer_tips);
- lv_obj_align(labelDialog, NULL, LV_ALIGN_CENTER, 0, -70);
+ lv_obj_align(labelDialog, nullptr, LV_ALIGN_CENTER, 0, -70);
}
#endif
#if HAS_ROTARY_ENCODER
diff --git a/Marlin/src/lcd/extui/mks_ui/draw_move_motor.cpp b/Marlin/src/lcd/extui/mks_ui/draw_move_motor.cpp
index 4b413c5c621..19abb855f54 100644
--- a/Marlin/src/lcd/extui/mks_ui/draw_move_motor.cpp
+++ b/Marlin/src/lcd/extui/mks_ui/draw_move_motor.cpp
@@ -119,10 +119,10 @@ void lv_draw_move_motor() {
lv_big_button_create(scr, "F:/bmp_return.bin", common_menu.text_back, BTN_X_PIXEL * 3 + INTERVAL_V * 4, BTN_Y_PIXEL + INTERVAL_H + titleHeight, event_handler, ID_M_RETURN);
// We need to patch the title to leave some space on the right for displaying the status
- lv_obj_t * title = lv_obj_get_child_back(scr, NULL);
- if (title != NULL) lv_obj_set_width(title, TFT_WIDTH - 101);
+ lv_obj_t * title = lv_obj_get_child_back(scr, nullptr);
+ if (title != nullptr) lv_obj_set_width(title, TFT_WIDTH - 101);
labelP = lv_label_create(scr, TFT_WIDTH - 100, TITLE_YPOS, "Z:0.0mm");
- if (labelP != NULL)
+ if (labelP != nullptr)
updatePosTask = lv_task_create(refresh_pos, 300, LV_TASK_PRIO_LOWEST, 0);
disp_move_dist();
diff --git a/Marlin/src/lcd/tft/tft_queue.h b/Marlin/src/lcd/tft/tft_queue.h
index 7eaa0c01c1a..51387254c55 100644
--- a/Marlin/src/lcd/tft/tft_queue.h
+++ b/Marlin/src/lcd/tft/tft_queue.h
@@ -134,7 +134,7 @@ class TFT_Queue {
public:
static void reset();
static void async();
- static void sync() { while (current_task != NULL) async(); }
+ static void sync() { while (current_task != nullptr) async(); }
static void fill(uint16_t x, uint16_t y, uint16_t width, uint16_t height, uint16_t color);
static void canvas(uint16_t x, uint16_t y, uint16_t width, uint16_t height);
diff --git a/Marlin/src/lcd/tft/touch.h b/Marlin/src/lcd/tft/touch.h
index 8d6001b8d89..54dfb420d8d 100644
--- a/Marlin/src/lcd/tft/touch.h
+++ b/Marlin/src/lcd/tft/touch.h
@@ -109,7 +109,7 @@ class Touch {
public:
static void init();
- static void reset() { controls_count = 0; touch_time = 0; current_control = NULL; }
+ static void reset() { controls_count = 0; touch_time = 0; current_control = nullptr; }
static void clear() { controls_count = 0; }
static void idle();
static bool is_clicked() {