diff --git a/examples/kanban_app.php b/examples/kanban_app.php
index af29dd0..701e332 100644
--- a/examples/kanban_app.php
+++ b/examples/kanban_app.php
@@ -347,6 +347,20 @@ $root->addComponent($subTitle);
 $statusLabel = new Label('Bereit.', 'text-sm text-gray-600');
 $kanbanView = new KanbanBoardView($storagePath, $boards, $statusLabel);
 
+// SDL_Window PixelDensity und DisplayScale im Status anzeigen (falls verfügbar)
+$densityText = '';
+if (function_exists('sdl_get_window_pixel_density')) {
+    $density = sdl_get_window_pixel_density($window->getWindowResource());
+    $densityText .= sprintf('PixelDensity: %.2f', $density);
+}
+if (function_exists('sdl_get_window_display_scale')) {
+    $scale = sdl_get_window_display_scale($window->getWindowResource());
+    $densityText .= ($densityText !== '' ? ' | ' : '') . sprintf('DisplayScale: %.2f', $scale);
+}
+if ($densityText !== '') {
+    $statusLabel->setText('Bereit. ' . $densityText);
+}
+
 $scaleInput = new TextInput('Scale (z.B. 1.0 oder 2.0)', 'w-40 border border-gray-300 rounded px-3 py-2 bg-white text-black');
 $scaleInput->setOnChange(function (string $value) use ($statusLabel): void {
     $value = trim($value);
diff --git a/php-sdl3/.libs/sdl3.o b/php-sdl3/.libs/sdl3.o
index 52af146..7062c30 100644
Binary files a/php-sdl3/.libs/sdl3.o and b/php-sdl3/.libs/sdl3.o differ
diff --git a/php-sdl3/.libs/sdl3.so b/php-sdl3/.libs/sdl3.so
index b628ba3..936d612 100755
Binary files a/php-sdl3/.libs/sdl3.so and b/php-sdl3/.libs/sdl3.so differ
diff --git a/php-sdl3/modules/sdl3.so b/php-sdl3/modules/sdl3.so
index b628ba3..936d612 100755
Binary files a/php-sdl3/modules/sdl3.so and b/php-sdl3/modules/sdl3.so differ
diff --git a/php-sdl3/sdl3.c b/php-sdl3/sdl3.c
index 861cd99..fd17760 100644
--- a/php-sdl3/sdl3.c
+++ b/php-sdl3/sdl3.c
@@ -769,6 +769,23 @@ PHP_FUNCTION(sdl_get_window_size_in_pixels) {
     add_index_long(return_value, 1, h);
 }
 
+PHP_FUNCTION(sdl_get_window_pixel_density) {
+    zval *win_res;
+    SDL_Window *win;
+
+    if (zend_parse_parameters(ZEND_NUM_ARGS(), "r", &win_res) == FAILURE) {
+        RETURN_THROWS();
+    }
+
+    win = (SDL_Window *)zend_fetch_resource(Z_RES_P(win_res), "SDL_Window", le_sdl_window);
+    if (!win) {
+        RETURN_FALSE;
+    }
+
+    float density = SDL_GetWindowPixelDensity(win);
+    RETURN_DOUBLE(density);
+}
+
 PHP_FUNCTION(sdl_get_renderer_output_size) {
     zval *ren_res;
     SDL_Renderer *ren;
@@ -793,6 +810,23 @@ PHP_FUNCTION(sdl_get_renderer_output_size) {
     add_index_long(return_value, 1, h);
 }
 
+PHP_FUNCTION(sdl_get_window_display_scale) {
+    zval *win_res;
+    SDL_Window *win;
+
+    if (zend_parse_parameters(ZEND_NUM_ARGS(), "r", &win_res) == FAILURE) {
+        RETURN_THROWS();
+    }
+
+    win = (SDL_Window *)zend_fetch_resource(Z_RES_P(win_res), "SDL_Window", le_sdl_window);
+    if (!win) {
+        RETURN_FALSE;
+    }
+
+    float scale = SDL_GetWindowDisplayScale(win);
+    RETURN_DOUBLE(scale);
+}
+
 PHP_FUNCTION(sdl_start_text_input) {
     zval *win_res;
     SDL_Window *win;
@@ -987,6 +1021,14 @@ ZEND_BEGIN_ARG_INFO_EX(arginfo_sdl_get_window_size_in_pixels, 0, 0, 1)
     ZEND_ARG_INFO(0, window)
 ZEND_END_ARG_INFO()
 
+ZEND_BEGIN_ARG_INFO_EX(arginfo_sdl_get_window_pixel_density, 0, 0, 1)
+    ZEND_ARG_INFO(0, window)
+ZEND_END_ARG_INFO()
+
+ZEND_BEGIN_ARG_INFO_EX(arginfo_sdl_get_window_display_scale, 0, 0, 1)
+    ZEND_ARG_INFO(0, window)
+ZEND_END_ARG_INFO()
+
 ZEND_BEGIN_ARG_INFO_EX(arginfo_sdl_get_renderer_output_size, 0, 0, 1)
     ZEND_ARG_INFO(0, renderer)
 ZEND_END_ARG_INFO()
@@ -1030,6 +1072,8 @@ const zend_function_entry sdl3_functions[] = {
     PHP_FE(sdl_set_render_clip_rect, arginfo_sdl_set_render_clip_rect)
     PHP_FE(sdl_get_window_size, arginfo_sdl_get_window_size)
     PHP_FE(sdl_get_window_size_in_pixels, arginfo_sdl_get_window_size_in_pixels)
+    PHP_FE(sdl_get_window_pixel_density, arginfo_sdl_get_window_pixel_density)
+    PHP_FE(sdl_get_window_display_scale, arginfo_sdl_get_window_display_scale)
     PHP_FE(sdl_get_renderer_output_size, arginfo_sdl_get_renderer_output_size)
     PHP_FE(sdl_start_text_input, arginfo_sdl_start_text_input)
     PHP_FE(sdl_stop_text_input, arginfo_sdl_stop_text_input)
diff --git a/src/Ui/Window.php b/src/Ui/Window.php
index 8caafe4..625cba5 100644
--- a/src/Ui/Window.php
+++ b/src/Ui/Window.php
@@ -48,7 +48,7 @@ class Window
         }
 
         // Create window with resizable flag for normal window decorations
-        $flags = SDL_WINDOW_RESIZABLE;
+        $flags = SDL_WINDOW_HIGH_PIXEL_DENSITY | SDL_WINDOW_RESIZABLE;
 
         $this->window = sdl_create_window($title, $width, $height, $flags);
         if (!$this->window) {