Mention in README that Ctrl is forwarded

Update documentation regarding the recent copy-paste changes.

README.md

@@ -516,7 +516,7 @@ The actual behavior depends on the active application though. For example,
 _Termux_ sends SIGINT on `Ctrl`+`c` instead, and _K-9 Mail_ composes a new
 message.
 
-To copy, cut and paste in all cases (but only supported on Android >= 7):
+To copy, cut and paste in such cases (but only supported on Android >= 7):
  - `MOD`+`c` injects `COPY`
  - `MOD`+`x` injects `CUT`
  - `MOD`+`v` injects `PASTE` (after computer-to-device clipboard
@@ -526,10 +526,10 @@ In addition, `MOD`+`Shift`+`v` allows to inject the computer clipboard text as a
 sequence of key events. This is useful when the component does not accept text
 pasting (for example in _Termux_), but it can break non-ASCII content.
 
-*WARNING:* Pasting the computer clipboard to the device (either via `Ctrl`+`v`
-or `MOD`+`v`) copies the content in the device clipboard. As a consequence, any
-Android application could read its content. You should avoid to paste sensitive
-content (like passwords) that way.
+**WARNING:** Pasting the computer clipboard to the device (either via `Ctrl`+`v`
+or `MOD`+`v`) copies the content into the device clipboard. As a consequence,
+any Android application could read its content. You should avoid to paste
+sensitive content (like passwords) that way.
 
 #### Text injection preference
 
@@ -590,19 +590,23 @@ Also see [issue #14].
 ## Shortcuts
 
 In the following list, `MOD` is the shortcut modifier. By default, it's (left)
-`Alt` or (left) `Cmd`.
+`Alt` or (left) `Super`.
 
 It can be changed using `--shortcut-mod`. Possible keys are `lctrl`, `rctrl`,
-`lalt`, `ralt`, `lcmd` and `rcmd`. For example:
+`lalt`, `ralt`, `lsuper` and `rsuper`. For example:
 
 ```bash
 # use RCtrl for shortcuts
 scrcpy --shortcut-mod=rctrl
 
-# use either LCtrl+LAlt or LCmd for shortcuts
-scrcpy --shortcut-mod=lctrl+lalt,lcmd
+# use either LCtrl+LAlt or LSuper for shortcuts
+scrcpy --shortcut-mod=lctrl+lalt,lsuper
 ```
 
+_[Super] is typically the "Windows" or "Cmd" key._
+
+[Super]: https://en.wikipedia.org/wiki/Super_key_(keyboard_button)
+
  | Action                                      |   Shortcut
  | ------------------------------------------- |:-----------------------------
  | Switch fullscreen mode                      | `MOD`+`f`
@@ -630,7 +634,7 @@ scrcpy --shortcut-mod=lctrl+lalt,lcmd
  | Enable/disable FPS counter (on stdout)      | `MOD`+`i`
 
 _¹Double-click on black borders to remove them._  
-_²Right-click turns the screen on if it was off, presses BACK otherwise._
+_²Right-click turns the screen on if it was off, presses BACK otherwise._  
 _³Only on Android >= 7._
 
 All `Ctrl`+_key_ shortcuts are forwarded to the device, so they are handled by

app/scrcpy.1

@@ -151,13 +151,13 @@ The device serial number. Mandatory only if several devices are connected to adb
 
 .TP
 .BI "\-\-shortcut\-mod " key[+...]][,...]
-Specify the modifiers to use for scrcpy shortcuts. Possible keys are "lctrl", "rctrl", "lalt", "ralt", "lcmd" and "rcmd".
+Specify the modifiers to use for scrcpy shortcuts. Possible keys are "lctrl", "rctrl", "lalt", "ralt", "lsuper" and "rsuper".
 
 A shortcut can consist in several keys, separated by '+'. Several shortcuts can be specified, separated by ','.
 
-For example, to use either LCtrl+LAlt or LCmd for scrcpy shortcuts, pass "lctrl+lalt,lcmd".
+For example, to use either LCtrl+LAlt or LSuper for scrcpy shortcuts, pass "lctrl+lalt,lsuper".
 
-Default is "lalt,lcmd" (left-Alt or left-Cmd).
+Default is "lalt,lsuper" (left-Alt or left-Super).
 
 .TP
 .B \-S, \-\-turn\-screen\-off
@@ -218,7 +218,7 @@ Default is 0 (automatic).\n
 .SH SHORTCUTS
 
 In the following list, MOD is the shortcut modifier. By default, it's (left)
-Alt or (left) Cmd, but it can be configured by \-\-shortcut-mod.
+Alt or (left) Super, but it can be configured by \-\-shortcut-mod.
 
 .TP
 .B MOD+f

app/src/cli.c

@@ -139,17 +139,17 @@ scrcpy_print_usage(const char *arg0) {
         "        are connected to adb.\n"
         "\n"
         "    --shortcut-mod key[+...]][,...]\n"
-        "        Specify the modifiers to use for scrcpy shortcuts. Possible\n"
-        "        keys are \"lctrl\", \"rctrl\", \"lalt\", \"ralt\", \"lcmd\"\n"
-        "        and \"rcmd\".\n"
+        "        Specify the modifiers to use for scrcpy shortcuts.\n"
+        "        Possible keys are \"lctrl\", \"rctrl\", \"lalt\", \"ralt\",\n"
+        "        \"lsuper\" and \"rsuper\".\n"
         "\n"
         "        A shortcut can consist in several keys, separated by '+'.\n"
         "        Several shortcuts can be specified, separated by ','.\n"
         "\n"
-        "        For example, to use either LCtrl+LAlt or LCmd for scrcpy\n"
-        "        shortcuts, pass \"lctrl+lalt,lcmd\".\n"
+        "        For example, to use either LCtrl+LAlt or LSuper for scrcpy\n"
+        "        shortcuts, pass \"lctrl+lalt,lsuper\".\n"
         "\n"
-        "        Default is \"lalt,lcmd\" (left-Alt or left-Cmd).\n"
+        "        Default is \"lalt,lsuper\" (left-Alt or left-Super).\n"
         "\n"
         "    -S, --turn-screen-off\n"
         "        Turn the device screen off immediately.\n"
@@ -199,7 +199,7 @@ scrcpy_print_usage(const char *arg0) {
         "Shortcuts:\n"
         "\n"
         "    In the following list, MOD is the shortcut modifier. By default,\n"
-        "    it's (left) Alt or (left) Cmd, but it can be configured by\n"
+        "    it's (left) Alt or (left) Super, but it can be configured by\n"
         "    --shortcut-mod.\n"
         "\n"
         "    MOD+f\n"
@@ -521,10 +521,10 @@ parse_shortcut_mods_item(const char *item, size_t len) {
             mod |= SC_MOD_LALT;
         } else if (STREQ("ralt", item, key_len)) {
             mod |= SC_MOD_RALT;
-        } else if (STREQ("lcmd", item, key_len)) {
-            mod |= SC_MOD_LCMD;
-        } else if (STREQ("rcmd", item, key_len)) {
-            mod |= SC_MOD_RCMD;
+        } else if (STREQ("lsuper", item, key_len)) {
+            mod |= SC_MOD_LSUPER;
+        } else if (STREQ("rsuper", item, key_len)) {
+            mod |= SC_MOD_RSUPER;
         } else {
             LOGW("Unknown modifier key: %.*s", (int) key_len, item);
             return 0;
@@ -548,7 +548,7 @@ parse_shortcut_mods(const char *s, struct sc_shortcut_mods *mods) {
     unsigned count = 0;
     unsigned current = 0;
 
-    // LCtrl+LAlt or RCtrl or LCtrl+RCmd: "lctrl+lalt,rctrl,lctrl+rcmd"
+    // LCtrl+LAlt or RCtrl or LCtrl+RSuper: "lctrl+lalt,rctrl,lctrl+rsuper"
 
     for (;;) {
         char *comma = strchr(s, ',');

app/src/input_manager.c

@@ -28,10 +28,10 @@ to_sdl_mod(unsigned mod) {
     if (mod & SC_MOD_RALT) {
         sdl_mod |= KMOD_RALT;
     }
-    if (mod & SC_MOD_LCMD) {
+    if (mod & SC_MOD_LSUPER) {
         sdl_mod |= KMOD_LGUI;
     }
-    if (mod & SC_MOD_RCMD) {
+    if (mod & SC_MOD_RSUPER) {
         sdl_mod |= KMOD_RGUI;
     }
     return sdl_mod;

app/src/scrcpy.h

@@ -27,8 +27,8 @@ enum sc_shortcut_mod {
     SC_MOD_RCTRL = 1 << 1,
     SC_MOD_LALT = 1 << 2,
     SC_MOD_RALT = 1 << 3,
-    SC_MOD_LCMD = 1 << 4,
-    SC_MOD_RCMD = 1 << 5,
+    SC_MOD_LSUPER = 1 << 4,
+    SC_MOD_RSUPER = 1 << 5,
 };
 
 struct sc_shortcut_mods {
@@ -95,7 +95,7 @@ struct scrcpy_options {
         .last = DEFAULT_LOCAL_PORT_RANGE_LAST, \
     }, \
     .shortcut_mods = { \
-        .data = {SC_MOD_LALT, SC_MOD_LCMD}, \
+        .data = {SC_MOD_LALT, SC_MOD_LSUPER}, \
         .count = 2, \
     }, \
     .max_size = DEFAULT_MAX_SIZE, \

app/tests/test_cli.c

@@ -143,11 +143,11 @@ static void test_parse_shortcut_mods(void) {
     assert(mods.data[0] == SC_MOD_RCTRL);
     assert(mods.data[1] == SC_MOD_LALT);
 
-    ok = sc_parse_shortcut_mods("lcmd,rcmd+lalt,lctrl+rctrl+ralt", &mods);
+    ok = sc_parse_shortcut_mods("lsuper,rsuper+lalt,lctrl+rctrl+ralt", &mods);
     assert(ok);
     assert(mods.count == 3);
-    assert(mods.data[0] == SC_MOD_LCMD);
-    assert(mods.data[1] == (SC_MOD_RCMD | SC_MOD_LALT));
+    assert(mods.data[0] == SC_MOD_LSUPER);
+    assert(mods.data[1] == (SC_MOD_RSUPER | SC_MOD_LALT));
     assert(mods.data[2] == (SC_MOD_LCTRL | SC_MOD_RCTRL | SC_MOD_RALT));
 
     ok = sc_parse_shortcut_mods("", &mods);