diff --git a/common/log.c b/common/log.c
index b3ae9c22..54f625d7 100644
--- a/common/log.c
+++ b/common/log.c
@@ -149,7 +149,7 @@ internal_log_start(struct log_config *l_cfg)
         return ret;
     }
 
-    /* if progname is NULL, we ureturn error */
+    /* if progname is NULL, we return error */
     if (0 == l_cfg->program_name)
     {
         g_writeln("program_name not properly assigned");
diff --git a/libxrdp/libxrdp.c b/libxrdp/libxrdp.c
index 0015f26b..0b92668a 100644
--- a/libxrdp/libxrdp.c
+++ b/libxrdp/libxrdp.c
@@ -971,7 +971,7 @@ libxrdp_reset(struct xrdp_session *session,
     }
 
     /* shut down the rdp client */
-    if (xrdp_rdp_send_deactive((struct xrdp_rdp *)session->rdp) != 0)
+    if (xrdp_rdp_send_deactivate((struct xrdp_rdp *)session->rdp) != 0)
     {
         return 1;
     }
diff --git a/libxrdp/libxrdp.h b/libxrdp/libxrdp.h
index 6058c9ac..857abc99 100644
--- a/libxrdp/libxrdp.h
+++ b/libxrdp/libxrdp.h
@@ -401,7 +401,7 @@ xrdp_rdp_process_data(struct xrdp_rdp *self, struct stream *s);
 int APP_CC
 xrdp_rdp_disconnect(struct xrdp_rdp *self);
 int APP_CC
-xrdp_rdp_send_deactive(struct xrdp_rdp *self);
+xrdp_rdp_send_deactivate(struct xrdp_rdp *self);
 
 /* xrdp_orders.c */
 struct xrdp_orders * APP_CC
diff --git a/libxrdp/libxrdpinc.h b/libxrdp/libxrdpinc.h
index ffda9e81..b23fd340 100644
--- a/libxrdp/libxrdpinc.h
+++ b/libxrdp/libxrdpinc.h
@@ -27,8 +27,8 @@
 
 struct xrdp_brush
 {
-    int x_orgin;
-    int y_orgin;
+    int x_origin;
+    int y_origin;
     int style;
     char pattern[8];
 };
diff --git a/libxrdp/xrdp_caps.c b/libxrdp/xrdp_caps.c
index 8a57c003..9dfe6fef 100644
--- a/libxrdp/xrdp_caps.c
+++ b/libxrdp/xrdp_caps.c
@@ -508,8 +508,8 @@ xrdp_caps_process_codecs(struct xrdp_rdp *self, struct stream *s, int len)
 
 /*****************************************************************************/
 static int APP_CC
-xrdp_caps_process_multifragmetupdate(struct xrdp_rdp *self, struct stream *s,
-                                     int len)
+xrdp_caps_process_multifragmentupdate(struct xrdp_rdp *self, struct stream *s,
+                                      int len)
 {
     int MaxRequestSize;
 
@@ -647,7 +647,7 @@ xrdp_caps_process_confirm_active(struct xrdp_rdp *self, struct stream *s)
                 xrdp_caps_process_window(self, s, len);
                 break;
             case 0x001A: /* 26 CAPSETTYPE_MULTIFRAGMENTUPDATE */
-                xrdp_caps_process_multifragmetupdate(self, s, len);
+                xrdp_caps_process_multifragmentupdate(self, s, len);
                 break;
             case RDP_CAPSET_BMPCODECS: /* 0x1d(29) */
                 xrdp_caps_process_codecs(self, s, len);
diff --git a/libxrdp/xrdp_iso.c b/libxrdp/xrdp_iso.c
index ce3baf70..fa7a3f1a 100644
--- a/libxrdp/xrdp_iso.c
+++ b/libxrdp/xrdp_iso.c
@@ -99,7 +99,7 @@ xrdp_iso_negotiate_security(struct xrdp_iso *self)
         default:
             if (self->requestedProtocol & PROTOCOL_SSL)
             {
-                /* thats a patch since we don't support CredSSP for now */
+                /* that's a patch since we don't support CredSSP for now */
                 self->selectedProtocol = PROTOCOL_SSL;
             }
             else
diff --git a/libxrdp/xrdp_orders.c b/libxrdp/xrdp_orders.c
index d7a2d017..697d2a5a 100644
--- a/libxrdp/xrdp_orders.c
+++ b/libxrdp/xrdp_orders.c
@@ -1014,18 +1014,18 @@ xrdp_orders_pat_blt(struct xrdp_orders *self, int x, int y,
         brush = &blank_brush;
     }
 
-    if (brush->x_orgin != self->orders_state.pat_blt_brush.x_orgin)
+    if (brush->x_origin != self->orders_state.pat_blt_brush.x_origin)
     {
         present |= 0x0080;
-        out_uint8(self->out_s, brush->x_orgin);
-        self->orders_state.pat_blt_brush.x_orgin = brush->x_orgin;
+        out_uint8(self->out_s, brush->x_origin);
+        self->orders_state.pat_blt_brush.x_origin = brush->x_origin;
     }
 
-    if (brush->y_orgin != self->orders_state.pat_blt_brush.y_orgin)
+    if (brush->y_origin != self->orders_state.pat_blt_brush.y_origin)
     {
         present |= 0x0100;
-        out_uint8(self->out_s, brush->y_orgin);
-        self->orders_state.pat_blt_brush.y_orgin = brush->y_orgin;
+        out_uint8(self->out_s, brush->y_origin);
+        self->orders_state.pat_blt_brush.y_origin = brush->y_origin;
     }
 
     if (brush->style != self->orders_state.pat_blt_brush.style)
diff --git a/libxrdp/xrdp_rdp.c b/libxrdp/xrdp_rdp.c
index 00bda631..fb3b4b51 100644
--- a/libxrdp/xrdp_rdp.c
+++ b/libxrdp/xrdp_rdp.c
@@ -1155,7 +1155,7 @@ xrdp_rdp_process_data(struct xrdp_rdp *self, struct stream *s)
             xrdp_rdp_process_screen_update(self, s);
             break;
         case 35: /* 35(0x23) */
-            /* 35 ?? this comes when minimuzing a full screen mstsc.exe 2600 */
+            /* 35 ?? this comes when minimizing a full screen mstsc.exe 2600 */
             /* I think this is saying the client no longer wants screen */
             /* updates and it will issue a 33 above to catch up */
             /* so minimized apps don't take bandwidth */
@@ -1193,18 +1193,18 @@ xrdp_rdp_disconnect(struct xrdp_rdp *self)
 
 /*****************************************************************************/
 int APP_CC
-xrdp_rdp_send_deactive(struct xrdp_rdp *self)
+xrdp_rdp_send_deactivate(struct xrdp_rdp *self)
 {
     struct stream *s;
 
-    DEBUG(("in xrdp_rdp_send_deactive"));
+    DEBUG(("in xrdp_rdp_send_deactivate"));
     make_stream(s);
     init_stream(s, 8192);
 
     if (xrdp_rdp_init(self, s) != 0)
     {
         free_stream(s);
-        DEBUG(("out xrdp_rdp_send_deactive error"));
+        DEBUG(("out xrdp_rdp_send_deactivate error"));
         return 1;
     }
 
@@ -1213,11 +1213,11 @@ xrdp_rdp_send_deactive(struct xrdp_rdp *self)
     if (xrdp_rdp_send(self, s, RDP_PDU_DEACTIVATE) != 0)
     {
         free_stream(s);
-        DEBUG(("out xrdp_rdp_send_deactive error"));
+        DEBUG(("out xrdp_rdp_send_deactivate error"));
         return 1;
     }
 
     free_stream(s);
-    DEBUG(("out xrdp_rdp_send_deactive"));
+    DEBUG(("out xrdp_rdp_send_deactivate"));
     return 0;
 }
diff --git a/mc/mc.h b/mc/mc.h
index 4af932f0..a28ade47 100644
--- a/mc/mc.h
+++ b/mc/mc.h
@@ -62,7 +62,7 @@ struct mod
   int (*server_set_bgcolor)(struct mod* v, int bgcolor);
   int (*server_set_opcode)(struct mod* v, int opcode);
   int (*server_set_mixmode)(struct mod* v, int mixmode);
-  int (*server_set_brush)(struct mod* v, int x_orgin, int y_orgin,
+  int (*server_set_brush)(struct mod* v, int x_origin, int y_origin,
                           int style, char* pattern);
   int (*server_set_pen)(struct mod* v, int style,
                         int width);
diff --git a/neutrinordp/xrdp-neutrinordp.h b/neutrinordp/xrdp-neutrinordp.h
index 8606efe2..feddda4b 100644
--- a/neutrinordp/xrdp-neutrinordp.h
+++ b/neutrinordp/xrdp-neutrinordp.h
@@ -96,7 +96,7 @@ struct mod
   int (*server_set_bgcolor)(struct mod* v, int bgcolor);
   int (*server_set_opcode)(struct mod* v, int opcode);
   int (*server_set_mixmode)(struct mod* v, int mixmode);
-  int (*server_set_brush)(struct mod* v, int x_orgin, int y_orgin,
+  int (*server_set_brush)(struct mod* v, int x_origin, int y_origin,
                           int style, char* pattern);
   int (*server_set_pen)(struct mod* v, int style,
                         int width);
diff --git a/rdp/rdp.h b/rdp/rdp.h
index 36a20f57..da8c1321 100644
--- a/rdp/rdp.h
+++ b/rdp/rdp.h
@@ -287,7 +287,7 @@ struct mod
   int (*server_set_bgcolor)(struct mod* v, int bgcolor);
   int (*server_set_opcode)(struct mod* v, int opcode);
   int (*server_set_mixmode)(struct mod* v, int mixmode);
-  int (*server_set_brush)(struct mod* v, int x_orgin, int y_orgin,
+  int (*server_set_brush)(struct mod* v, int x_origin, int y_origin,
                           int style, char* pattern);
   int (*server_set_pen)(struct mod* v, int style,
                         int width);
diff --git a/rdp/rdp_tcp.c b/rdp/rdp_tcp.c
index 0200e777..60807806 100644
--- a/rdp/rdp_tcp.c
+++ b/rdp/rdp_tcp.c
@@ -55,7 +55,7 @@ rdp_tcp_recv(struct rdp_tcp *self, struct stream *s, int len)
 {
     int rcvd;
 
-    DEBUG(("    in rdp_tcp_recv gota get %d bytes on sck %d",
+    DEBUG(("    in rdp_tcp_recv will get %d bytes on sck %d",
            len, self->sck));
 
     if (self->sck_closed)
@@ -115,7 +115,7 @@ rdp_tcp_send(struct rdp_tcp *self, struct stream *s)
     }
 
     len = s->end - s->data;
-    DEBUG(("    in rdp_tcp_send gota send %d bytes on sck %d", len,
+    DEBUG(("    in rdp_tcp_send will send %d bytes on sck %d", len,
            self->sck));
     total = 0;
 
diff --git a/sesman/chansrv/clipboard.c b/sesman/chansrv/clipboard.c
index a170dd23..80db95d1 100644
--- a/sesman/chansrv/clipboard.c
+++ b/sesman/chansrv/clipboard.c
@@ -1706,7 +1706,7 @@ clipboard_event_selection_owner_notify(XEvent *xevent)
     {
         log_debug("clipboard_event_selection_owner_notify: matches g_wnd");
         log_debug("clipboard_event_selection_owner_notify: skipping, "
-              "onwer == g_wnd");
+              "owner == g_wnd");
         g_got_selection = 1;
         return 0;
     }
diff --git a/sesman/chansrv/smartcard.c b/sesman/chansrv/smartcard.c
index 02a30d1a..38d80c8b 100644
--- a/sesman/chansrv/smartcard.c
+++ b/sesman/chansrv/smartcard.c
@@ -1873,7 +1873,7 @@ scard_send_Transmit(IRP *irp, char *context, int context_bytes,
      * u32    4 bytes    dwProtocol
      * u32    4 bytes    cbPciLength
      * u32    4 bytes    map2
-     * u32    4 byts     cbSendLength
+     * u32    4 bytes    cbSendLength
      * u32    4 bytes    map3
      * u32    4 bytes    map4
      * u32    4 bytes    map5
diff --git a/sesman/libscp/libscp_lock.c b/sesman/libscp/libscp_lock.c
index 848c1966..be0619cb 100644
--- a/sesman/libscp/libscp_lock.c
+++ b/sesman/libscp/libscp_lock.c
@@ -29,7 +29,7 @@ pthread_mutexattr_t lock_fork_attr;   /* mutex attributes */
 tbus lock_fork_req;                   /* semaphore on which the process that are going to fork suspend on */
 tbus lock_fork_wait;                  /* semaphore on which the suspended process wait on */
 int lock_fork_forkers_count;          /* threads that want to fork */
-int lock_fork_blockers_count;         /* threads thar are blocking fork */
+int lock_fork_blockers_count;         /* threads that are blocking fork */
 int lock_fork_waiting_count;          /* threads suspended until the fork finishes */
 
 void DEFAULT_CC
diff --git a/sesman/libscp/libscp_v1s.h b/sesman/libscp/libscp_v1s.h
index 322edb28..cc29d70d 100644
--- a/sesman/libscp/libscp_v1s.h
+++ b/sesman/libscp/libscp_v1s.h
@@ -48,7 +48,7 @@ scp_v1s_accept(struct SCP_CONNECTION* c, struct SCP_SESSION** s, int skipVchk);
  *
  * @brief denies connection to sesman
  * @param c connection descriptor
- * @param reason pointer to a string containinge the reason for denying connection
+ * @param reason pointer to a string containing the reason for denying connection
  *
  */
 /* 002 */
diff --git a/sesman/libscp/libscp_v1s_mng.h b/sesman/libscp/libscp_v1s_mng.h
index 83dee35b..867931a5 100644
--- a/sesman/libscp/libscp_v1s_mng.h
+++ b/sesman/libscp/libscp_v1s_mng.h
@@ -56,7 +56,7 @@ scp_v1s_mng_allow_connection(struct SCP_CONNECTION* c, struct SCP_SESSION* s);
  *
  * @brief denies connection to sesman
  * @param c connection descriptor
- * @param reason pointer to a string containinge the reason for denying connection
+ * @param reason pointer to a string containing the reason for denying connection
  *
  */
 /* 003 */
diff --git a/vnc/vnc.h b/vnc/vnc.h
index af5e86e6..6d1ddb8f 100644
--- a/vnc/vnc.h
+++ b/vnc/vnc.h
@@ -62,7 +62,7 @@ struct vnc
   int (*server_set_bgcolor)(struct vnc* v, int bgcolor);
   int (*server_set_opcode)(struct vnc* v, int opcode);
   int (*server_set_mixmode)(struct vnc* v, int mixmode);
-  int (*server_set_brush)(struct vnc* v, int x_orgin, int y_orgin,
+  int (*server_set_brush)(struct vnc* v, int x_origin, int y_origin,
                           int style, char* pattern);
   int (*server_set_pen)(struct vnc* v, int style,
                         int width);
diff --git a/vrplayer/mainwindow.h b/vrplayer/mainwindow.h
index f0383098..58bcb31c 100644
--- a/vrplayer/mainwindow.h
+++ b/vrplayer/mainwindow.h
@@ -62,7 +62,7 @@ public:
     ~MainWindow();
 
 signals:
-    void onGeometryChanged(int x, int y, int widht, int height);
+    void onGeometryChanged(int x, int y, int width, int height);
 
 public slots:
     void onSliderValueChanged(int value);
diff --git a/xorg/X11R7.6/rdp/rdp.h b/xorg/X11R7.6/rdp/rdp.h
index 901e292b..bc34778b 100644
--- a/xorg/X11R7.6/rdp/rdp.h
+++ b/xorg/X11R7.6/rdp/rdp.h
@@ -558,9 +558,9 @@ rdpup_set_cursor(short x, short y, char* cur_data, char* cur_mask);
 int
 rdpup_set_cursor_ex(short x, short y, char *cur_data, char *cur_mask, int bpp);
 int
-rdpup_create_os_surface(int rdpindexd, int width, int height);
+rdpup_create_os_surface(int rdpindex, int width, int height);
 int
-rdpup_create_os_surface_bpp(int rdpindexd, int width, int height, int bpp);
+rdpup_create_os_surface_bpp(int rdpindex, int width, int height, int bpp);
 int
 rdpup_switch_os_surface(int rdpindex);
 int
diff --git a/xorg/X11R7.6/rdp/rdpmain.c b/xorg/X11R7.6/rdp/rdpmain.c
index c08b15cd..7540e12e 100644
--- a/xorg/X11R7.6/rdp/rdpmain.c
+++ b/xorg/X11R7.6/rdp/rdpmain.c
@@ -41,7 +41,7 @@ Sets up the  functions
 #endif
 
 #if XRDP_DISABLE_LINUX_ABSTRACT
-/* because including <X11/Xtrans/Xtransint.h> in problematic
+/* because including <X11/Xtrans/Xtransint.h> is problematic
  * we dup a small struct
  * we need to set flags to zero to turn off abstract sockets */
 struct _MyXtransport
diff --git a/xorg/X11R7.6/rdp/rdpup.c b/xorg/X11R7.6/rdp/rdpup.c
index c9091a7d..54eb779d 100644
--- a/xorg/X11R7.6/rdp/rdpup.c
+++ b/xorg/X11R7.6/rdp/rdpup.c
@@ -1127,7 +1127,7 @@ rdpup_process_msg(struct stream *s)
             box.x2 = g_rdpScreen.client_info.minfo[0].right;
             box.y2 = g_rdpScreen.client_info.minfo[0].bottom;
             g_do_multimon = 1;
-            /* adjust monitor info so it's not negitive */
+            /* adjust monitor info so it's not negative */
             for (index = 1; index < g_rdpScreen.client_info.monitorCount; index++)
             {
                 box.x1 = min(box.x1, g_rdpScreen.client_info.minfo[index].left);
diff --git a/xorg/X11R7.6/rdp/rdpxv.c b/xorg/X11R7.6/rdp/rdpxv.c
index d0ce8345..99fbd993 100644
--- a/xorg/X11R7.6/rdp/rdpxv.c
+++ b/xorg/X11R7.6/rdp/rdpxv.c
@@ -165,7 +165,7 @@ static int
 rdpXvSetPortAttribute(ClientPtr client, XvPortPtr pPort, Atom attribute,
                        INT32 value)
 {
-    LLOGLN(0, ("rdpXvxSetPortAttribute:"));
+    LLOGLN(0, ("rdpXvSetPortAttribute:"));
     return Success;
 }
 
diff --git a/xorg/tests/xdemo/xdemo.c b/xorg/tests/xdemo/xdemo.c
index f7e6b0ef..cef93274 100644
--- a/xorg/tests/xdemo/xdemo.c
+++ b/xorg/tests/xdemo/xdemo.c
@@ -205,7 +205,7 @@ int drawFont(int count, char *msg)
     }
     else
     {
-        printf("XListFonts() reted NULL\n");
+        printf("XListFonts() returned NULL\n");
     }
 
 #endif
diff --git a/xrdp/xrdp.h b/xrdp/xrdp.h
index 1199d01a..e9bf69ef 100644
--- a/xrdp/xrdp.h
+++ b/xrdp/xrdp.h
@@ -136,7 +136,7 @@ xrdp_wm_pointer(struct xrdp_wm* self, char* data, char* mask, int x, int y,
 int
 callback(long id, int msg, long param1, long param2, long param3, long param4);
 int APP_CC
-xrdp_wm_delete_all_childs(struct xrdp_wm* self);
+xrdp_wm_delete_all_children(struct xrdp_wm* self);
 int APP_CC
 xrdp_wm_show_log(struct xrdp_wm *self);
 int APP_CC
@@ -439,7 +439,7 @@ server_set_opcode(struct xrdp_mod* mod, int opcode);
 int DEFAULT_CC
 server_set_mixmode(struct xrdp_mod* mod, int mixmode);
 int DEFAULT_CC
-server_set_brush(struct xrdp_mod* mod, int x_orgin, int y_orgin,
+server_set_brush(struct xrdp_mod* mod, int x_origin, int y_origin,
                  int style, char* pattern);
 int DEFAULT_CC
 server_set_pen(struct xrdp_mod* mod, int style, int width);
diff --git a/xrdp/xrdp_bitmap.c b/xrdp/xrdp_bitmap.c
index 3fd0fbb7..6a062d51 100644
--- a/xrdp/xrdp_bitmap.c
+++ b/xrdp/xrdp_bitmap.c
@@ -1254,8 +1254,8 @@ xrdp_bitmap_draw_focus_box(struct xrdp_bitmap *self,
     painter->brush.pattern[5] = 0x55;
     painter->brush.pattern[6] = 0xaa;
     painter->brush.pattern[7] = 0x55;
-    painter->brush.x_orgin = x;
-    painter->brush.x_orgin = x;
+    painter->brush.x_origin = x;
+    painter->brush.x_origin = x;
     painter->brush.style = 3;
     painter->fg_color = self->wm->black;
     painter->bg_color = self->parent->bg_color;
diff --git a/xrdp/xrdp_login_wnd.c b/xrdp/xrdp_login_wnd.c
index 357b4e2a..23195d49 100644
--- a/xrdp/xrdp_login_wnd.c
+++ b/xrdp/xrdp_login_wnd.c
@@ -96,7 +96,7 @@ xrdp_wm_popup_notify(struct xrdp_bitmap *wnd,
 
 /*****************************************************************************/
 int APP_CC
-xrdp_wm_delete_all_childs(struct xrdp_wm *self)
+xrdp_wm_delete_all_children(struct xrdp_wm *self)
 {
     int index;
     struct xrdp_bitmap *b;
@@ -228,7 +228,7 @@ xrdp_wm_ok_clicked(struct xrdp_bitmap *wnd)
             wm->mm->login_names->auto_free = 1;
             wm->mm->login_values = list_create();
             wm->mm->login_values->auto_free = 1;
-            /* gota copy these cause dialog gets freed */
+            /* will copy these cause dialog gets freed */
             list_append_list_strdup(mod_data->names, wm->mm->login_names, 0);
             list_append_list_strdup(mod_data->values, wm->mm->login_values, 0);
             xrdp_wm_set_login_mode(wm, 2);
@@ -257,7 +257,7 @@ xrdp_wm_ok_clicked(struct xrdp_bitmap *wnd)
 * 
 * Users can create shortcuts where this information is configured. These 
 * shortcuts simplifies login.
-* @param orginalDomainInfo indata to this function
+* @param originalDomainInfo indata to this function
 * @param comboMax the max number of combo choices
 * @param decode if true then we perform decoding of combo choice
 * @param resultBuffer must be pre allocated before calling this function.
@@ -266,7 +266,7 @@ xrdp_wm_ok_clicked(struct xrdp_bitmap *wnd)
 * 0 if the user does not prefer any choice.
 */
 static int APP_CC
-xrdp_wm_parse_domain_information(char *orginalDomainInfo, int comboMax,
+xrdp_wm_parse_domain_information(char *originalDomainInfo, int comboMax,
                                  int decode, char *resultBuffer)
 {
     int ret;
@@ -280,7 +280,7 @@ xrdp_wm_parse_domain_information(char *orginalDomainInfo, int comboMax,
     ret = 0; /* default return value */
     /* resultBuffer assumed to be 256 chars */
     g_memset(resultBuffer, 0, 256);
-    if (orginalDomainInfo[0] == '_')
+    if (originalDomainInfo[0] == '_')
     {
         /* we try to locate a number indicating what combobox index the user
          * prefer the information is loaded from domain field, from the client
@@ -289,7 +289,7 @@ xrdp_wm_parse_domain_information(char *orginalDomainInfo, int comboMax,
          * Underscore is a valid name in the domain.
          * Invalid chars are ignored in microsoft client therefore we use '_' 
          * again. this sec '__' contains the split for index.*/
-        pos = g_pos(&orginalDomainInfo[1], "__");
+        pos = g_pos(&originalDomainInfo[1], "__");
         if (pos > 0)
         {
             /* an index is found we try to use it
@@ -298,7 +298,7 @@ xrdp_wm_parse_domain_information(char *orginalDomainInfo, int comboMax,
             {
                 g_memset(index, 0, 2);
                 /* we just accept values 0-9  (one figure) */
-                g_strncpy(index, &orginalDomainInfo[pos + 3], 1);
+                g_strncpy(index, &originalDomainInfo[pos + 3], 1);
                 comboxindex = g_htoi(index);
                 g_snprintf(debugstr, 255, "Value of index (as char): %s "
                            "(converted) : %d (max) : %d", index, comboxindex,
@@ -314,12 +314,12 @@ xrdp_wm_parse_domain_information(char *orginalDomainInfo, int comboMax,
                 }
             }
             /* pos limit the String to only contain the IP */
-            g_strncpy(resultBuffer, &orginalDomainInfo[1], pos); 
+            g_strncpy(resultBuffer, &originalDomainInfo[1], pos); 
         }
         else
         {
             /* log_message(LOG_LEVEL_DEBUG, "domain does not contain _"); */
-            g_strncpy(resultBuffer, &orginalDomainInfo[1], 255);
+            g_strncpy(resultBuffer, &originalDomainInfo[1], 255);
         }
     }
     return ret;
@@ -344,7 +344,7 @@ xrdp_wm_show_edits(struct xrdp_wm *self, struct xrdp_bitmap *combo)
 
     username_set = 0;
 
-    /* free labels and edits, cause we gota create them */
+    /* free labels and edits, cause we will create them */
     /* creation or combo changed */
     for (index = 100; index < 200; index++)
     {
@@ -791,7 +791,7 @@ load_xrdp_config(struct xrdp_config *config, int bpp)
 
     globals = &config->cfg_globals;
 
-    /* set default values incase we can't get them from xrdp.ini file */
+    /* set default values in case we can't get them from xrdp.ini file */
     globals->ini_version = 1;
     globals->ls_top_window_bg_color = HCOLOR(bpp, xrdp_wm_htoi("009cb5"));
     globals->ls_bg_color = HCOLOR(bpp, xrdp_wm_htoi("dedede"));
diff --git a/xrdp/xrdp_mm.c b/xrdp/xrdp_mm.c
index 1ee0b3bc..94be7e4f 100644
--- a/xrdp/xrdp_mm.c
+++ b/xrdp/xrdp_mm.c
@@ -2777,7 +2777,7 @@ server_set_mixmode(struct xrdp_mod *mod, int mixmode)
 
 /*****************************************************************************/
 int DEFAULT_CC
-server_set_brush(struct xrdp_mod *mod, int x_orgin, int y_orgin,
+server_set_brush(struct xrdp_mod *mod, int x_origin, int y_origin,
                  int style, char *pattern)
 {
     struct xrdp_painter *p;
@@ -2789,8 +2789,8 @@ server_set_brush(struct xrdp_mod *mod, int x_orgin, int y_orgin,
         return 0;
     }
 
-    p->brush.x_orgin = x_orgin;
-    p->brush.y_orgin = y_orgin;
+    p->brush.x_origin = x_origin;
+    p->brush.y_origin = y_origin;
     p->brush.style = style;
     g_memcpy(p->brush.pattern, pattern, 8);
     return 0;
diff --git a/xrdp/xrdp_painter.c b/xrdp/xrdp_painter.c
index 522c83d5..4b36b1ea 100644
--- a/xrdp/xrdp_painter.c
+++ b/xrdp/xrdp_painter.c
@@ -29,7 +29,7 @@ xrdp_painter_create(struct xrdp_wm *wm, struct xrdp_session *session)
     self = (struct xrdp_painter *)g_malloc(sizeof(struct xrdp_painter), 1);
     self->wm = wm;
     self->session = session;
-    self->rop = 0xcc; /* copy gota use 0xcc*/
+    self->rop = 0xcc; /* copy will use 0xcc*/
     self->clip_children = 1;
     return self;
 }
diff --git a/xrdp/xrdp_types.h b/xrdp/xrdp_types.h
index 6230d678..4590d7a8 100644
--- a/xrdp/xrdp_types.h
+++ b/xrdp/xrdp_types.h
@@ -70,7 +70,7 @@ struct xrdp_mod
   int (*server_set_bgcolor)(struct xrdp_mod* v, int bgcolor);
   int (*server_set_opcode)(struct xrdp_mod* v, int opcode);
   int (*server_set_mixmode)(struct xrdp_mod* v, int mixmode);
-  int (*server_set_brush)(struct xrdp_mod* v, int x_orgin, int y_orgin,
+  int (*server_set_brush)(struct xrdp_mod* v, int x_origin, int y_origin,
                           int style, char* pattern);
   int (*server_set_pen)(struct xrdp_mod* v, int style,
                         int width);
diff --git a/xrdp/xrdp_wm.c b/xrdp/xrdp_wm.c
index ddadbe5a..4e545b26 100644
--- a/xrdp/xrdp_wm.c
+++ b/xrdp/xrdp_wm.c
@@ -594,9 +594,9 @@ xrdp_wm_init(struct xrdp_wm *self)
             {
                 /* if no domain is passed, and no autorun in xrdp.ini,
                    use the first item in the xrdp.ini
-                   file thats not named
+                   file that's not named
                    'globals' or 'Logging' or 'channels' */
-                /* TODO: change this and have a 'autologin'
+                /* TODO: change this and have an 'autologin'
                    line in globals section */
                 file_read_sections(fd, names);
                 for (index = 0; index < names->count; index++)
@@ -810,8 +810,8 @@ xrdp_wm_xor_pat(struct xrdp_wm *self, int x, int y, int cx, int cy)
     self->painter->brush.pattern[5] = 0x55;
     self->painter->brush.pattern[6] = 0xaa;
     self->painter->brush.pattern[7] = 0x55;
-    self->painter->brush.x_orgin = 0;
-    self->painter->brush.x_orgin = 0;
+    self->painter->brush.x_origin = 0;
+    self->painter->brush.x_origin = 0;
     self->painter->brush.style = 3;
     self->painter->bg_color = self->black;
     self->painter->fg_color = self->white;
@@ -1763,7 +1763,7 @@ xrdp_wm_login_mode_changed(struct xrdp_wm *self)
         /* this is the initial state of the login window */
         xrdp_wm_set_login_mode(self, 1); /* put the wm in login mode */
         list_clear(self->log);
-        xrdp_wm_delete_all_childs(self);
+        xrdp_wm_delete_all_children(self);
         self->dragging = 0;
         xrdp_wm_init(self);
     }
@@ -1772,7 +1772,7 @@ xrdp_wm_login_mode_changed(struct xrdp_wm *self)
         if (xrdp_mm_connect(self->mm) == 0)
         {
             xrdp_wm_set_login_mode(self, 3); /* put the wm in connected mode */
-            xrdp_wm_delete_all_childs(self);
+            xrdp_wm_delete_all_children(self);
             self->dragging = 0;
         }
         else
@@ -1782,7 +1782,7 @@ xrdp_wm_login_mode_changed(struct xrdp_wm *self)
     }
     else if (self->login_mode == 10)
     {
-        xrdp_wm_delete_all_childs(self);
+        xrdp_wm_delete_all_children(self);
         self->dragging = 0;
         xrdp_wm_set_login_mode(self, 11);
     }
diff --git a/xrdpapi/xrdpapi.c b/xrdpapi/xrdpapi.c
index 13f8e584..7d5c65f0 100644
--- a/xrdpapi/xrdpapi.c
+++ b/xrdpapi/xrdpapi.c
@@ -247,7 +247,7 @@ WTSVirtualChannelWrite(void *hChannelHandle, const char *Buffer,
         return -1;
     }
 
-    LLOGLN(10, ("WTSVirtualChannelWrite: mysend() reted %d", rv));
+    LLOGLN(10, ("WTSVirtualChannelWrite: mysend() returned %d", rv));
 
     if (rv >= 0)
     {
diff --git a/xup/xup.h b/xup/xup.h
index 70cdcf27..85aff9fe 100644
--- a/xup/xup.h
+++ b/xup/xup.h
@@ -66,7 +66,7 @@ struct mod
   int (*server_set_bgcolor)(struct mod* v, int bgcolor);
   int (*server_set_opcode)(struct mod* v, int opcode);
   int (*server_set_mixmode)(struct mod* v, int mixmode);
-  int (*server_set_brush)(struct mod* v, int x_orgin, int y_orgin,
+  int (*server_set_brush)(struct mod* v, int x_origin, int y_origin,
                           int style, char* pattern);
   int (*server_set_pen)(struct mod* v, int style,
                         int width);