Forward Right-Ctrl to the device

Only capture Left-Ctrl for scrcpy shortcuts, so that Right-Ctrl can be
forwarded to the device.

Fixes #555 <https://github.com/Genymobile/scrcpy/issues/555>

README.md

@@ -560,36 +560,36 @@ Also see [issue #14].
 
 ## Shortcuts
 
-_`Meta` is typically the `Windows` key on the keyboard, or `Cmd` on macOS._
+`LCtrl` is the left `Ctrl` key (the right `Ctrl` key is forwarded to the
+device).
 
- | Action                                               |   Shortcut
- | ---------------------------------------------------- |:-----------------------------
- | Switch fullscreen mode                               | `Meta`+`f`
- | Rotate display left                                  | `Meta`+`←` _(left)_
- | Rotate display right                                 | `Meta`+`→` _(right)_
- | Resize window to 1:1 (pixel-perfect)                 | `Meta`+`g`
- | Resize window to remove black borders                | `Meta`+`w` \| _Double-click¹_
- | Click on `HOME`                                      | `Meta`+`h` \| _Middle-click_
- | Click on `BACK`                                      | `Meta`+`b` \| _Right-click²_
- | Click on `APP_SWITCH`                                | `Meta`+`s`
- | Click on `MENU`                                      | `Meta`+`m`
- | Click on `VOLUME_UP`                                 | `Meta`+`↑` _(up)_
- | Click on `VOLUME_DOWN`                               | `Meta`+`↓` _(down)_
- | Click on `POWER`                                     | `Meta`+`p`
- | Power on                                             | _Right-click²_
- | Turn device screen off (keep mirroring)              | `Meta`+`o`
- | Turn device screen on                                | `Meta`+`Shift`+`o`
- | Rotate device screen                                 | `Meta`+`r`
- | Expand notification panel                            | `Meta`+`n`
- | Collapse notification panel                          | `Meta`+`Shift`+`n`
- | Press COPY³, then Copy device clipboard to computer  | `Meta`+`c`
- | Press CUT³                                           | `Meta`+`x`
- | Paste computer clipboard to device                   | `Meta`+`v`
- | Enable/disable FPS counter (on stdout)               | `Meta`+`i`
+ | Action                                      |   Shortcut                    |   Shortcut (macOS)
+ | ------------------------------------------- |:----------------------------- |:-----------------------------
+ | Switch fullscreen mode                      | `LCtrl`+`f`                    | `Cmd`+`f`
+ | Rotate display left                         | `LCtrl`+`←` _(left)_           | `Cmd`+`←` _(left)_
+ | Rotate display right                        | `LCtrl`+`→` _(right)_          | `Cmd`+`→` _(right)_
+ | Resize window to 1:1 (pixel-perfect)        | `LCtrl`+`g`                    | `Cmd`+`g`
+ | Resize window to remove black borders       | `LCtrl`+`x` \| _Double-click¹_ | `Cmd`+`x`  \| _Double-click¹_
+ | Click on `HOME`                             | `LCtrl`+`h` \| _Middle-click_  | `Ctrl`+`h` \| _Middle-click_
+ | Click on `BACK`                             | `LCtrl`+`b` \| _Right-click²_  | `Cmd`+`b`  \| _Right-click²_
+ | Click on `APP_SWITCH`                       | `LCtrl`+`s`                    | `Cmd`+`s`
+ | Click on `MENU`                             | `LCtrl`+`m`                    | `Ctrl`+`m`
+ | Click on `VOLUME_UP`                        | `LCtrl`+`↑` _(up)_             | `Cmd`+`↑` _(up)_
+ | Click on `VOLUME_DOWN`                      | `LCtrl`+`↓` _(down)_           | `Cmd`+`↓` _(down)_
+ | Click on `POWER`                            | `LCtrl`+`p`                    | `Cmd`+`p`
+ | Power on                                    | _Right-click²_                 | _Right-click²_
+ | Turn device screen off (keep mirroring)     | `LCtrl`+`o`                    | `Cmd`+`o`
+ | Turn device screen on                       | `LCtrl`+`Shift`+`o`            | `Cmd`+`Shift`+`o`
+ | Rotate device screen                        | `LCtrl`+`r`                    | `Cmd`+`r`
+ | Expand notification panel                   | `LCtrl`+`n`                    | `Cmd`+`n`
+ | Collapse notification panel                 | `LCtrl`+`Shift`+`n`            | `Cmd`+`Shift`+`n`
+ | Copy device clipboard to computer           | `LCtrl`+`c`                    | `Cmd`+`c`
+ | Paste computer clipboard to device          | `LCtrl`+`v`                    | `Cmd`+`v`
+ | Copy computer clipboard to device and paste | `LCtrl`+`Shift`+`v`            | `Cmd`+`Shift`+`v`
+ | Enable/disable FPS counter (on stdout)      | `LCtrl`+`i`                    | `Cmd`+`i`
 
 _¹Double-click on black borders to remove them._  
-_²Right-click turns the screen on if it was off, presses BACK otherwise._  
-_³Only if the device runs Android >= 7._
+_²Right-click turns the screen on if it was off, presses BACK otherwise._
 
 
 ## Custom paths

app/scrcpy.1

@@ -203,52 +203,54 @@ Default is 0 (automatic).\n
 
 .SH SHORTCUTS
 
+\fBLCtrl\fR is the left Ctrl key (the right Ctrl key is forwarded to the device).
+
 .TP
-.B Meta+f
+.B LCtrl+f
 Switch fullscreen mode
 
 .TP
-.B Meta+Left
+.B LCtrl+Left
 Rotate display left
 
 .TP
-.B Meta+Right
+.B LCtrl+Right
 Rotate display right
 
 .TP
-.B Meta+g
+.B LCtrl+g
 Resize window to 1:1 (pixel\-perfect)
 
 .TP
-.B Meta+w, Double\-click on black borders
+.B LCtrl+x, Double\-click on black borders
 Resize window to remove black borders
 
 .TP
-.B Meta+h, Home, Middle\-click
+.B LCtrl+h, Home, Middle\-click
 Click on HOME
 
 .TP
-.B Meta+b, Meta+Backspace, Right\-click (when screen is on)
+.B LCtrl+b, Ctrl+Backspace, Right\-click (when screen is on)
 Click on BACK
 
 .TP
-.B Meta+s
+.B LCtrl+s
 Click on APP_SWITCH
 
 .TP
-.B Meta+m
+.B LCtrl+m
 Click on MENU
 
 .TP
-.B Meta+Up
+.B LCtrl+Up
 Click on VOLUME_UP
 
 .TP
-.B Meta+Down
+.B LCtrl+Down
 Click on VOLUME_DOWN
 
 .TP
-.B Meta+p
+.B LCtrl+p
 Click on POWER (turn screen on/off)
 
 .TP
@@ -256,39 +258,39 @@ Click on POWER (turn screen on/off)
 Turn screen on
 
 .TP
-.B Meta+o
+.B LCtrl+o
 Turn device screen off (keep mirroring)
 
 .TP
-.B Meta+Shift+o
+.B LCtrl+Shift+o
 Turn device screen on
 
 .TP
-.B Meta+r
+.B LCtrl+r
 Rotate device screen
 
 .TP
-.B Meta+n
+.B LCtrl+n
 Expand notification panel
 
 .TP
-.B Meta+Shift+n
+.B LCtrl+Shift+n
 Collapse notification panel
 
 .TP
-.B Meta+c
-Press COPY (Android >= 7), then copy device clipboard to computer
+.B LCtrl+c
+Copy device clipboard to computer
 
 .TP
-.B Meta+x
-Press CUT (Android >= 7)
-
-.TP
-.B Meta+v
+.B LCtrl+v
 Paste computer clipboard to device
 
 .TP
-.B Meta+i
+.B LCtrl+Shift+v
+Copy computer clipboard to device (and paste if the device runs Android >= 7)
+
+.TP
+.B LCtrl+i
 Enable/disable FPS counter (print frames/second in logs)
 
 .TP

app/src/cli.c

@@ -13,9 +13,9 @@
 void
 scrcpy_print_usage(const char *arg0) {
 #ifdef __APPLE__
-# define MOD "Cmd"
+# define CTRL_OR_CMD "Cmd"
 #else
-# define MOD "Meta"
+# define CTRL_OR_CMD "LCtrl"
 #endif
     fprintf(stderr,
         "Usage: %s [options]\n"
@@ -186,75 +186,78 @@ scrcpy_print_usage(const char *arg0) {
         "\n"
         "Shortcuts:\n"
         "\n"
-        "    " MOD "+f\n"
+        "    LCtrl is the left Ctrl key (the right Ctrl key is forwarded to\n"
+        "    the device).\n"
+        "\n"
+        "    " CTRL_OR_CMD "+f\n"
         "        Switch fullscreen mode\n"
         "\n"
-        "    " MOD "+Left\n"
+        "    " CTRL_OR_CMD "+Left\n"
         "        Rotate display left\n"
         "\n"
-        "    " MOD "+Right\n"
+        "    " CTRL_OR_CMD "+Right\n"
         "        Rotate display right\n"
         "\n"
-        "    " MOD "+g\n"
+        "    " CTRL_OR_CMD "+g\n"
         "        Resize window to 1:1 (pixel-perfect)\n"
         "\n"
-        "    " MOD "+w\n"
+        "    " CTRL_OR_CMD "+x\n"
         "    Double-click on black borders\n"
         "        Resize window to remove black borders\n"
         "\n"
-        "    Ctrl+h\n"
+        "    LCtrl+h\n"
         "    Middle-click\n"
         "        Click on HOME\n"
         "\n"
-        "    " MOD "+b\n"
-        "    " MOD "+Backspace\n"
+        "    " CTRL_OR_CMD "+b\n"
+        "    " CTRL_OR_CMD "+Backspace\n"
         "    Right-click (when screen is on)\n"
         "        Click on BACK\n"
         "\n"
-        "    " MOD "+s\n"
+        "    " CTRL_OR_CMD "+s\n"
         "        Click on APP_SWITCH\n"
         "\n"
-        "    Ctrl+m\n"
+        "    LCtrl+m\n"
         "        Click on MENU\n"
         "\n"
-        "    " MOD "+Up\n"
+        "    " CTRL_OR_CMD "+Up\n"
         "        Click on VOLUME_UP\n"
         "\n"
-        "    " MOD "+Down\n"
+        "    " CTRL_OR_CMD "+Down\n"
         "        Click on VOLUME_DOWN\n"
         "\n"
-        "    " MOD "+p\n"
+        "    " CTRL_OR_CMD "+p\n"
         "        Click on POWER (turn screen on/off)\n"
         "\n"
         "    Right-click (when screen is off)\n"
         "        Power on\n"
         "\n"
-        "    " MOD "+o\n"
+        "    " CTRL_OR_CMD "+o\n"
         "        Turn device screen off (keep mirroring)\n"
         "\n"
-        "    " MOD "+Shift+o\n"
+        "    " CTRL_OR_CMD "+Shift+o\n"
         "        Turn device screen on\n"
         "\n"
-        "    " MOD "+r\n"
+        "    " CTRL_OR_CMD "+r\n"
         "        Rotate device screen\n"
         "\n"
-        "    " MOD "+n\n"
+        "    " CTRL_OR_CMD "+n\n"
         "        Expand notification panel\n"
         "\n"
-        "    " MOD "+Shift+n\n"
+        "    " CTRL_OR_CMD "+Shift+n\n"
         "        Collapse notification panel\n"
         "\n"
-        "    " MOD "+c\n"
-        "        Press COPY (Android >= 7), then copy device clipboard to\n"
-        "        computer\n"
+        "    " CTRL_OR_CMD "+c\n"
+        "        Copy device clipboard to computer\n"
         "\n"
-        "    " MOD "+x\n"
-        "        Press CUT (Android >= 7)\n"
-        "\n"
-        "    " MOD "+v\n"
+        "    " CTRL_OR_CMD "+v\n"
         "        Paste computer clipboard to device\n"
         "\n"
-        "    " MOD "+i\n"
+        "    " CTRL_OR_CMD "+Shift+v\n"
+        "        Copy computer clipboard to device (and paste if the device\n"
+        "        runs Android >= 7)\n"
+        "\n"
+        "    " CTRL_OR_CMD "+i\n"
         "        Enable/disable FPS counter (print frames/second in logs)\n"
         "\n"
         "    Drag & drop APK file\n"
@@ -265,7 +268,6 @@ scrcpy_print_usage(const char *arg0) {
         DEFAULT_LOCK_VIDEO_ORIENTATION, DEFAULT_LOCK_VIDEO_ORIENTATION >= 0 ? "" : " (unlocked)",
         DEFAULT_MAX_SIZE, DEFAULT_MAX_SIZE ? "" : " (unlimited)",
         DEFAULT_LOCAL_PORT_RANGE_FIRST, DEFAULT_LOCAL_PORT_RANGE_LAST);
-#undef MOD
 }
 
 static bool

app/src/control_msg.c

@@ -66,9 +66,6 @@ control_msg_serialize(const struct control_msg *msg, unsigned char *buf) {
             buffer_write32be(&buf[17],
                              (uint32_t) msg->inject_scroll_event.vscroll);
             return 21;
-        case CONTROL_MSG_TYPE_GET_CLIPBOARD:
-            buf[1] = msg->get_clipboard.copy;
-            return 2;
         case CONTROL_MSG_TYPE_SET_CLIPBOARD: {
             buf[1] = !!msg->set_clipboard.paste;
             size_t len = write_string(msg->set_clipboard.text,
@@ -82,6 +79,7 @@ control_msg_serialize(const struct control_msg *msg, unsigned char *buf) {
         case CONTROL_MSG_TYPE_BACK_OR_SCREEN_ON:
         case CONTROL_MSG_TYPE_EXPAND_NOTIFICATION_PANEL:
         case CONTROL_MSG_TYPE_COLLAPSE_NOTIFICATION_PANEL:
+        case CONTROL_MSG_TYPE_GET_CLIPBOARD:
         case CONTROL_MSG_TYPE_ROTATE_DEVICE:
             // no additional data
             return 1;

app/src/control_msg.h

@@ -60,9 +60,6 @@ struct control_msg {
             int32_t hscroll;
             int32_t vscroll;
         } inject_scroll_event;
-        struct {
-            bool copy;
-        } get_clipboard;
         struct {
             char *text; // owned, to be freed by SDL_free()
             bool paste;

app/src/event_converter.c

@@ -92,10 +92,7 @@ convert_keycode(SDL_Keycode from, enum android_keycode *to, uint16_t mod,
         MAP(SDLK_LEFT,         AKEYCODE_DPAD_LEFT);
         MAP(SDLK_DOWN,         AKEYCODE_DPAD_DOWN);
         MAP(SDLK_UP,           AKEYCODE_DPAD_UP);
-        MAP(SDLK_LCTRL,        AKEYCODE_CTRL_LEFT);
         MAP(SDLK_RCTRL,        AKEYCODE_CTRL_RIGHT);
-        MAP(SDLK_LSHIFT,       AKEYCODE_SHIFT_LEFT);
-        MAP(SDLK_RSHIFT,       AKEYCODE_SHIFT_RIGHT);
     }
 
     if (!(mod & (KMOD_NUM | KMOD_SHIFT))) {

app/src/input_manager.c

@@ -70,11 +70,6 @@ action_menu(struct controller *controller, int actions) {
     send_keycode(controller, AKEYCODE_MENU, actions, "MENU");
 }
 
-static inline void
-action_cut(struct controller *controller, int actions) {
-    send_keycode(controller, AKEYCODE_CUT, actions, "CUT");
-}
-
 // turn the screen on if it was off, press BACK otherwise
 static void
 press_back_or_turn_screen_on(struct controller *controller) {
@@ -107,10 +102,9 @@ collapse_notification_panel(struct controller *controller) {
 }
 
 static void
-request_device_clipboard(struct controller *controller, bool copy) {
+request_device_clipboard(struct controller *controller) {
     struct control_msg msg;
     msg.type = CONTROL_MSG_TYPE_GET_CLIPBOARD;
-    msg.get_clipboard.copy = copy;
 
     if (!controller_push_msg(controller, &msg)) {
         LOGW("Could not request device clipboard");
@@ -265,59 +259,70 @@ input_manager_process_key(struct input_manager *im,
     // control: indicates the state of the command-line option --no-control
     // ctrl: the Ctrl key
 
-    bool ctrl = event->keysym.mod & (KMOD_LCTRL | KMOD_RCTRL);
+    // Only capture Left-Ctrl, Right-Ctrl is forwarded to the device
+    bool ctrl = event->keysym.mod & KMOD_LCTRL;
     bool alt = event->keysym.mod & (KMOD_LALT | KMOD_RALT);
     bool meta = event->keysym.mod & (KMOD_LGUI | KMOD_RGUI);
-    bool shift = event->keysym.mod & (KMOD_LSHIFT | KMOD_RSHIFT);
+
+    // use Cmd on macOS, Ctrl on other platforms
+#ifdef __APPLE__
+    bool cmd = !ctrl && meta;
+#else
+    if (meta) {
+        // no shortcuts involve Meta on platforms other than macOS, and it must
+        // not be forwarded to the device
+        return;
+    }
+    bool cmd = ctrl; // && !meta, already guaranteed
+#endif
 
     if (alt) {
-        // No shortcuts involve Alt, and it is not forwarded to the device
+        // no shortcuts involve Alt, and it must not be forwarded to the device
         return;
     }
 
     struct controller *controller = im->controller;
 
-    SDL_Keycode keycode = event->keysym.sym;
-    bool down = event->type == SDL_KEYDOWN;
-
-    // Capture all Meta events
-    if (meta) {
-        if (ctrl) {
-            // No shortcuts involve Ctrl+Meta
-            return;
-        }
-
+    // capture all Ctrl events
+    if (ctrl || cmd) {
+        SDL_Keycode keycode = event->keysym.sym;
+        bool down = event->type == SDL_KEYDOWN;
         int action = down ? ACTION_DOWN : ACTION_UP;
         bool repeat = event->repeat;
+        bool shift = event->keysym.mod & (KMOD_LSHIFT | KMOD_RSHIFT);
         switch (keycode) {
             case SDLK_h:
-                if (control && !shift && !repeat) {
+                // Ctrl+h on all platform, since Cmd+h is already captured by
+                // the system on macOS to hide the window
+                if (control && ctrl && !meta && !shift && !repeat) {
                     action_home(controller, action);
                 }
                 return;
             case SDLK_b: // fall-through
             case SDLK_BACKSPACE:
-                if (control && !shift && !repeat) {
+                if (control && cmd && !shift && !repeat) {
                     action_back(controller, action);
                 }
                 return;
             case SDLK_s:
-                if (control && !shift && !repeat) {
+                if (control && cmd && !shift && !repeat) {
                     action_app_switch(controller, action);
                 }
                 return;
             case SDLK_m:
-                if (control && !shift && !repeat) {
+                // Ctrl+m on all platform, since Cmd+m is already captured by
+                // the system on macOS to minimize the window
+                if (control && ctrl && !meta && !shift && !repeat) {
                     action_menu(controller, action);
                 }
                 return;
             case SDLK_p:
-                if (control && !shift && !repeat) {
+                if (control && cmd && !shift && !repeat) {
                     action_power(controller, action);
                 }
                 return;
             case SDLK_o:
-                if (control && !repeat && down) {
+                if (control && cmd && down) {
                     enum screen_power_mode mode = shift
                                                 ? SCREEN_POWER_MODE_NORMAL
                                                 : SCREEN_POWER_MODE_OFF;
@@ -325,71 +330,67 @@ input_manager_process_key(struct input_manager *im,
                 }
                 return;
             case SDLK_DOWN:
-                if (control && !shift) {
+                if (control && cmd && !shift) {
                     // forward repeated events
                     action_volume_down(controller, action);
                 }
                 return;
             case SDLK_UP:
-                if (control && !shift) {
+                if (control && cmd && !shift) {
                     // forward repeated events
                     action_volume_up(controller, action);
                 }
                 return;
             case SDLK_LEFT:
-                if (!shift && !repeat && down) {
+                if (cmd && !shift && down) {
                     rotate_client_left(im->screen);
                 }
                 return;
             case SDLK_RIGHT:
-                if (!shift && !repeat && down) {
+                if (cmd && !shift && down) {
                     rotate_client_right(im->screen);
                 }
                 return;
             case SDLK_c:
-                if (control && !shift && !repeat && down) {
-                    // Press COPY, then get the clipboard content
-                    request_device_clipboard(controller, true);
-                }
-                return;
-            case SDLK_x:
-                if (control && !shift && !repeat && down) {
-                    // For convenience (especially on macOS), bind Meta+x to
-                    // CUT (even if it is already accessible by pressing Ctrl+x
-                    // on the device)
-                    action_cut(controller, action);
+                if (control && cmd && !shift && !repeat && down) {
+                    request_device_clipboard(controller);
                 }
                 return;
             case SDLK_v:
-                if (control && !shift && !repeat && down) {
-                    // Inject the text as input events
-                    clipboard_paste(controller);
+                if (control && cmd && !repeat && down) {
+                    if (shift) {
+                        // store the text in the device clipboard and paste
+                        set_device_clipboard(controller, true);
+                    } else {
+                        // inject the text as input events
+                        clipboard_paste(controller);
+                    }
                 }
                 return;
             case SDLK_f:
-                if (!shift && !repeat && down) {
+                if (!shift && cmd && !repeat && down) {
                     screen_switch_fullscreen(im->screen);
                 }
                 return;
-            case SDLK_w:
-                if (!shift && !repeat && down) {
+            case SDLK_x:
+                if (!shift && cmd && !repeat && down) {
                     screen_resize_to_fit(im->screen);
                 }
                 return;
             case SDLK_g:
-                if (!shift && !repeat && down) {
+                if (!shift && cmd && !repeat && down) {
                     screen_resize_to_pixel_perfect(im->screen);
                 }
                 return;
             case SDLK_i:
-                if (!shift && !repeat && down) {
+                if (!shift && cmd && !repeat && down) {
                     struct fps_counter *fps_counter =
                         im->video_buffer->fps_counter;
                     switch_fps_counter_state(fps_counter);
                 }
                 return;
             case SDLK_n:
-                if (control && !repeat && down) {
+                if (control && cmd && !repeat && down) {
                     if (shift) {
                         collapse_notification_panel(controller);
                     } else {
@@ -398,7 +399,7 @@ input_manager_process_key(struct input_manager *im,
                 }
                 return;
             case SDLK_r:
-                if (control && !shift && !repeat && down) {
+                if (control && cmd && !shift && !repeat && down) {
                     rotate_device(controller);
                 }
                 return;
@@ -411,14 +412,6 @@ input_manager_process_key(struct input_manager *im,
         return;
     }
 
-    assert(!meta);
-
-    if (ctrl && !shift && keycode == SDLK_v && down) {
-        // Synchronize the computer clipboard to the device clipboard before
-        // sending Ctrl+v
-        set_device_clipboard(controller, false);
-    }
-
     struct control_msg msg;
     if (convert_input_key(event, &msg, im->prefer_text)) {
         if (!controller_push_msg(controller, &msg)) {

app/tests/test_control_msg_serialize.c

@@ -185,18 +185,14 @@ static void test_serialize_collapse_notification_panel(void) {
 static void test_serialize_get_clipboard(void) {
     struct control_msg msg = {
         .type = CONTROL_MSG_TYPE_GET_CLIPBOARD,
-        .get_clipboard = {
-            .copy = true,
-        },
     };
 
     unsigned char buf[CONTROL_MSG_SERIALIZED_MAX_SIZE];
     int size = control_msg_serialize(&msg, buf);
-    assert(size == 2);
+    assert(size == 1);
 
     const unsigned char expected[] = {
         CONTROL_MSG_TYPE_GET_CLIPBOARD,
-        1, // copy
     };
     assert(!memcmp(buf, expected, sizeof(expected)));
 }

server/src/main/java/com/genymobile/scrcpy/ControlMessage.java

@@ -17,6 +17,8 @@ public final class ControlMessage {
     public static final int TYPE_SET_SCREEN_POWER_MODE = 9;
     public static final int TYPE_ROTATE_DEVICE = 10;
 
+    public static final int FLAGS_PASTE = 1;
+
     private int type;
     private String text;
     private int metaState; // KeyEvent.META_*
@@ -28,7 +30,7 @@ public final class ControlMessage {
     private Position position;
     private int hScroll;
     private int vScroll;
-    private boolean pressCopyOrPaste;
+    private int flags;
 
     private ControlMessage() {
     }
@@ -69,18 +71,13 @@ public final class ControlMessage {
         return msg;
     }
 
-    public static ControlMessage createGetClipboard(boolean copy) {
-        ControlMessage msg = new ControlMessage();
-        msg.type = TYPE_GET_CLIPBOARD;
-        msg.pressCopyOrPaste = copy;
-        return msg;
-    }
-
     public static ControlMessage createSetClipboard(String text, boolean paste) {
         ControlMessage msg = new ControlMessage();
         msg.type = TYPE_SET_CLIPBOARD;
         msg.text = text;
-        msg.pressCopyOrPaste = paste;
+        if (paste) {
+            msg.flags = FLAGS_PASTE;
+        }
         return msg;
     }
 
@@ -144,7 +141,7 @@ public final class ControlMessage {
         return vScroll;
     }
 
-    public boolean getPressCopyOrPaste() {
-        return pressCopyOrPaste;
+    public int getFlags() {
+        return flags;
     }
 }

server/src/main/java/com/genymobile/scrcpy/ControlMessageReader.java

@@ -12,7 +12,6 @@ public class ControlMessageReader {
     static final int INJECT_TOUCH_EVENT_PAYLOAD_LENGTH = 27;
     static final int INJECT_SCROLL_EVENT_PAYLOAD_LENGTH = 20;
     static final int SET_SCREEN_POWER_MODE_PAYLOAD_LENGTH = 1;
-    static final int GET_CLIPBOARD_PAYLOAD_LENGTH = 1;
     static final int SET_CLIPBOARD_FIXED_PAYLOAD_LENGTH = 1;
 
     public static final int CLIPBOARD_TEXT_MAX_LENGTH = 4092; // 4096 - 1 (type) - 1 (parse flag) - 2 (length)
@@ -68,9 +67,6 @@ public class ControlMessageReader {
             case ControlMessage.TYPE_INJECT_SCROLL_EVENT:
                 msg = parseInjectScrollEvent();
                 break;
-            case ControlMessage.TYPE_GET_CLIPBOARD:
-                msg = parseGetClipboard();
-                break;
             case ControlMessage.TYPE_SET_CLIPBOARD:
                 msg = parseSetClipboard();
                 break;
@@ -80,6 +76,7 @@ public class ControlMessageReader {
             case ControlMessage.TYPE_BACK_OR_SCREEN_ON:
             case ControlMessage.TYPE_EXPAND_NOTIFICATION_PANEL:
             case ControlMessage.TYPE_COLLAPSE_NOTIFICATION_PANEL:
+            case ControlMessage.TYPE_GET_CLIPBOARD:
             case ControlMessage.TYPE_ROTATE_DEVICE:
                 msg = ControlMessage.createEmpty(type);
                 break;
@@ -151,14 +148,6 @@ public class ControlMessageReader {
         return ControlMessage.createInjectScrollEvent(position, hScroll, vScroll);
     }
 
-    private ControlMessage parseGetClipboard() {
-        if (buffer.remaining() < GET_CLIPBOARD_PAYLOAD_LENGTH) {
-            return null;
-        }
-        boolean copy = buffer.get() != 0;
-        return ControlMessage.createGetClipboard(copy);
-    }
-
     private ControlMessage parseSetClipboard() {
         if (buffer.remaining() < SET_CLIPBOARD_FIXED_PAYLOAD_LENGTH) {
             return null;

server/src/main/java/com/genymobile/scrcpy/Controller.java

@@ -104,10 +104,14 @@ public class Controller {
                 device.collapsePanels();
                 break;
             case ControlMessage.TYPE_GET_CLIPBOARD:
-                getClipboard(msg.getPressCopyOrPaste());
+                String clipboardText = device.getClipboardText();
+                if (clipboardText != null) {
+                    sender.pushClipboardText(clipboardText);
+                }
                 break;
             case ControlMessage.TYPE_SET_CLIPBOARD:
-                setClipboard(msg.getText(), msg.getPressCopyOrPaste());
+                boolean paste = (msg.getFlags() & ControlMessage.FLAGS_PASTE) != 0;
+                setClipboard(msg.getText(), paste);
                 break;
             case ControlMessage.TYPE_SET_SCREEN_POWER_MODE:
                 if (device.supportsInputEvents()) {
@@ -225,23 +229,6 @@ public class Controller {
         return device.injectKeycode(keycode);
     }
 
-    private boolean getClipboard(boolean copy) {
-        // On Android >= 7, also press the COPY key if requested
-        if (copy && Build.VERSION.SDK_INT >= Build.VERSION_CODES.N && device.supportsInputEvents()) {
-            // If there is something to copy, the clipboard will be automatically sent to the computer clipboard via the ClipboardListener
-            return device.injectKeycode(KeyEvent.KEYCODE_COPY);
-        }
-
-        // We can't press COPY, so only synchronize the current clipboard
-        String clipboardText = device.getClipboardText();
-        if (clipboardText != null) {
-            sender.pushClipboardText(clipboardText);
-            return true;
-        }
-
-        return false;
-    }
-
     private boolean setClipboard(String text, boolean paste) {
         boolean ok = device.setClipboardText(text);
         if (ok) {

server/src/test/java/com/genymobile/scrcpy/ControlMessageReaderTest.java

@@ -200,7 +200,6 @@ public class ControlMessageReaderTest {
         ByteArrayOutputStream bos = new ByteArrayOutputStream();
         DataOutputStream dos = new DataOutputStream(bos);
         dos.writeByte(ControlMessage.TYPE_GET_CLIPBOARD);
-        dos.writeByte(1); // copy
 
         byte[] packet = bos.toByteArray();
 
@@ -208,7 +207,6 @@ public class ControlMessageReaderTest {
         ControlMessage event = reader.next();
 
         Assert.assertEquals(ControlMessage.TYPE_GET_CLIPBOARD, event.getType());
-        Assert.assertTrue(event.getPressCopyOrPaste());
     }
 
     @Test
@@ -230,7 +228,9 @@ public class ControlMessageReaderTest {
 
         Assert.assertEquals(ControlMessage.TYPE_SET_CLIPBOARD, event.getType());
         Assert.assertEquals("testé", event.getText());
-        Assert.assertTrue(event.getPressCopyOrPaste());
+
+        boolean parse = (event.getFlags() & ControlMessage.FLAGS_PASTE) != 0;
+        Assert.assertTrue(parse);
     }
 
     @Test
@@ -256,7 +256,9 @@ public class ControlMessageReaderTest {
 
         Assert.assertEquals(ControlMessage.TYPE_SET_CLIPBOARD, event.getType());
         Assert.assertEquals(text, event.getText());
-        Assert.assertTrue(event.getPressCopyOrPaste());
+
+        boolean parse = (event.getFlags() & ControlMessage.FLAGS_PASTE) != 0;
+        Assert.assertTrue(parse);
     }
 
     @Test