FreeRDP/client/X11/xf_rail.c

706 lines
21 KiB
C

/**
* FreeRDP: A Remote Desktop Protocol Implementation
* X11 RAIL
*
* Copyright 2011 Marc-Andre Moreau <marcandre.moreau@gmail.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <freerdp/utils/event.h>
#include <winpr/print.h>
#include <freerdp/utils/rail.h>
#include <freerdp/rail/rail.h>
#include "xf_window.h"
#include "xf_rail.h"
void xf_rail_enable_remoteapp_mode(xfInfo* xfi)
{
if (xfi->remote_app == FALSE)
{
xfi->remote_app = TRUE;
xfi->drawable = DefaultRootWindow(xfi->display);
xf_DestroyWindow(xfi, xfi->window);
xfi->window = NULL;
}
}
void xf_rail_disable_remoteapp_mode(xfInfo* xfi)
{
if (xfi->remote_app == TRUE)
{
xfi->remote_app = FALSE;
xf_create_window(xfi);
}
}
void xf_rail_paint(xfInfo* xfi, rdpRail* rail, INT32 uleft, INT32 utop, UINT32 uright, UINT32 ubottom)
{
xfWindow* xfw;
rdpWindow* window;
BOOL intersect;
UINT32 iwidth, iheight;
INT32 ileft, itop;
UINT32 iright, ibottom;
INT32 wleft, wtop;
UINT32 wright, wbottom;
window_list_rewind(rail->list);
while (window_list_has_next(rail->list))
{
window = window_list_get_next(rail->list);
xfw = (xfWindow*) window->extra;
/* RDP can have zero width or height windows. X cannot, so we ignore these. */
if ((window->windowWidth == 0) || (window->windowHeight == 0))
{
continue;
}
wleft = window->visibleOffsetX;
wtop = window->visibleOffsetY;
wright = window->visibleOffsetX + window->windowWidth - 1;
wbottom = window->visibleOffsetY + window->windowHeight - 1;
ileft = MAX(uleft, wleft);
itop = MAX(utop, wtop);
iright = MIN(uright, wright);
ibottom = MIN(ubottom, wbottom);
iwidth = iright - ileft + 1;
iheight = ibottom - itop + 1;
intersect = ((iright > ileft) && (ibottom > itop)) ? TRUE : FALSE;
if (intersect)
{
xf_UpdateWindowArea(xfi, xfw, ileft - wleft, itop - wtop, iwidth, iheight);
}
}
}
void xf_rail_DesktopNonMonitored(rdpRail *rail, rdpWindow* window)
{
xfInfo* xfi;
xfi = (xfInfo*) rail->extra;
xf_rail_disable_remoteapp_mode(xfi);
}
static void xf_rail_CreateWindow(rdpRail* rail, rdpWindow* window)
{
xfInfo* xfi;
xfWindow* xfw;
xfi = (xfInfo*) rail->extra;
xf_rail_enable_remoteapp_mode(xfi);
xfw = xf_CreateWindow((xfInfo*) rail->extra, window,
window->windowOffsetX, window->windowOffsetY,
window->windowWidth, window->windowHeight,
window->windowId);
xf_SetWindowStyle(xfi, xfw, window->style, window->extendedStyle);
xf_SetWindowText(xfi, xfw, window->title);
window->extra = (void*) xfw;
window->extraId = (void*) xfw->handle;
}
static void xf_rail_MoveWindow(rdpRail* rail, rdpWindow* window)
{
xfInfo* xfi;
xfWindow* xfw;
xfi = (xfInfo*) rail->extra;
xfw = (xfWindow*) window->extra;
/*
* The rail server like to set the window to a small size when it is minimized even though it is hidden
* in some cases this can cause the window not to restore back to its original size. Therefore we don't
* update our local window when that rail window state is minimized
*/
if (xfw->rail_state == WINDOW_SHOW_MINIMIZED)
return;
/* Do nothing if window is already in the correct position */
if ( xfw->left == window->visibleOffsetX &&
xfw->top == window->visibleOffsetY &&
xfw->width == window->windowWidth &&
xfw->height == window->windowHeight)
{
/*
* Just ensure entire window area is updated to handle cases where we
* have drawn locally before getting new bitmap from the server
*/
xf_UpdateWindowArea(xfi, xfw, 0, 0, window->windowWidth, window->windowHeight);
return;
}
xf_MoveWindow(xfi, xfw,
window->visibleOffsetX, window->visibleOffsetY,
window->windowWidth, window->windowHeight);
}
static void xf_rail_ShowWindow(rdpRail* rail, rdpWindow* window, BYTE state)
{
xfInfo* xfi;
xfWindow* xfw;
xfi = (xfInfo*) rail->extra;
xfw = (xfWindow*) window->extra;
xf_ShowWindow(xfi, xfw, state);
}
static void xf_rail_SetWindowText(rdpRail* rail, rdpWindow* window)
{
xfInfo* xfi;
xfWindow* xfw;
xfi = (xfInfo*) rail->extra;
xfw = (xfWindow*) window->extra;
xf_SetWindowText(xfi, xfw, window->title);
}
static void xf_rail_SetWindowIcon(rdpRail* rail, rdpWindow* window, rdpIcon* icon)
{
xfInfo* xfi;
xfWindow* xfw;
xfi = (xfInfo*) rail->extra;
xfw = (xfWindow*) window->extra;
icon->extra = freerdp_icon_convert(icon->entry->bitsColor, NULL, icon->entry->bitsMask,
icon->entry->width, icon->entry->height, icon->entry->bpp, rail->clrconv);
xf_SetWindowIcon(xfi, xfw, icon);
}
static void xf_rail_SetWindowRects(rdpRail* rail, rdpWindow* window)
{
xfInfo* xfi;
xfWindow* xfw;
xfi = (xfInfo*) rail->extra;
xfw = (xfWindow*) window->extra;
xf_SetWindowRects(xfi, xfw, window->windowRects, window->numWindowRects);
}
static void xf_rail_SetWindowVisibilityRects(rdpRail* rail, rdpWindow* window)
{
xfInfo* xfi;
xfWindow* xfw;
xfi = (xfInfo*) rail->extra;
xfw = (xfWindow*) window->extra;
xf_SetWindowVisibilityRects(xfi, xfw, window->windowRects, window->numWindowRects);
}
static void xf_rail_DestroyWindow(rdpRail* rail, rdpWindow* window)
{
xfWindow* xfw;
xfw = (xfWindow*) window->extra;
xf_DestroyWindow((xfInfo*) rail->extra, xfw);
}
void xf_rail_register_callbacks(xfInfo* xfi, rdpRail* rail)
{
rail->extra = (void*) xfi;
rail->rail_CreateWindow = xf_rail_CreateWindow;
rail->rail_MoveWindow = xf_rail_MoveWindow;
rail->rail_ShowWindow = xf_rail_ShowWindow;
rail->rail_SetWindowText = xf_rail_SetWindowText;
rail->rail_SetWindowIcon = xf_rail_SetWindowIcon;
rail->rail_SetWindowRects = xf_rail_SetWindowRects;
rail->rail_SetWindowVisibilityRects = xf_rail_SetWindowVisibilityRects;
rail->rail_DestroyWindow = xf_rail_DestroyWindow;
rail->rail_DesktopNonMonitored = xf_rail_DesktopNonMonitored;
}
static void xf_on_free_rail_client_event(RDP_EVENT* event)
{
rail_free_cloned_order(event->event_type, event->user_data);
}
static void xf_send_rail_client_event(rdpChannels* channels, UINT16 event_type, void* param)
{
RDP_EVENT* out_event = NULL;
void* payload = NULL;
payload = rail_clone_order(event_type, param);
if (payload != NULL)
{
out_event = freerdp_event_new(RDP_EVENT_CLASS_RAIL, event_type,
xf_on_free_rail_client_event, payload);
freerdp_channels_send_event(channels, out_event);
}
}
void xf_rail_send_activate(xfInfo* xfi, Window xwindow, BOOL enabled)
{
rdpRail* rail;
rdpChannels* channels;
rdpWindow* rail_window;
RAIL_ACTIVATE_ORDER activate;
rail = xfi->_context->rail;
channels = xfi->_context->channels;
rail_window = window_list_get_by_extra_id(rail->list, (void*) xwindow);
if (rail_window == NULL)
return;
activate.windowId = rail_window->windowId;
activate.enabled = enabled;
xf_send_rail_client_event(channels, RDP_EVENT_TYPE_RAIL_CLIENT_ACTIVATE, &activate);
}
void xf_rail_send_client_system_command(xfInfo* xfi, UINT32 windowId, UINT16 command)
{
rdpChannels* channels;
RAIL_SYSCOMMAND_ORDER syscommand;
channels = xfi->_context->channels;
syscommand.windowId = windowId;
syscommand.command = command;
xf_send_rail_client_event(channels, RDP_EVENT_TYPE_RAIL_CLIENT_SYSCOMMAND, &syscommand);
}
/**
* The position of the X window can become out of sync with the RDP window
* if the X window is moved locally by the window manager. In this event
* send an update to the RDP server informing it of the new window position
* and size.
*/
void xf_rail_adjust_position(xfInfo* xfi, rdpWindow *window)
{
xfWindow* xfw;
rdpChannels* channels;
RAIL_WINDOW_MOVE_ORDER window_move;
xfw = (xfWindow*) window->extra;
channels = xfi->_context->channels;
if (! xfw->is_mapped || xfw->local_move.state != LMS_NOT_ACTIVE)
return;
/* If current window position disagrees with RDP window position, send update to RDP server */
if ( xfw->left != window->visibleOffsetX ||
xfw->top != window->visibleOffsetY ||
xfw->width != window->windowWidth ||
xfw->height != window->windowHeight)
{
/*
* Although the rail server can give negative window coordinates when updating windowOffsetX and windowOffsetY,
* we can only send unsigned integers to the rail server. Therefore, we always bring negative coordinates up to 0
* when attempting to adjust the rail window.
*/
UINT32 offsetX = 0;
UINT32 offsetY = 0;
if (window->windowOffsetX < 0)
offsetX = offsetX - window->windowOffsetX;
if (window->windowOffsetY < 0)
offsetY = offsetY - window->windowOffsetY;
/*
* windowOffset corresponds to the window location on the rail server
* but our local window is based on the visibleOffset since using the windowOffset
* can result in blank areas for a maximized window
*/
window_move.windowId = window->windowId;
/*
* Calculate new offsets for the rail server window
* Negative offset correction + rail server window offset + (difference in visibleOffset and new window local offset)
*/
window_move.left = offsetX + window->windowOffsetX + (xfw->left - window->visibleOffsetX);
window_move.top = offsetY + window->windowOffsetY + (xfw->top - window->visibleOffsetY);
window_move.right = window_move.left + xfw->width;
window_move.bottom = window_move.top + xfw->height;
DEBUG_X11_LMS("window=0x%X rc={l=%d t=%d r=%d b=%d} w=%u h=%u"
" RDP=0x%X rc={l=%d t=%d} w=%d h=%d",
(UINT32) xfw->handle, window_move.left, window_move.top,
window_move.right, window_move.bottom, xfw->width, xfw->height,
window->windowId,
window->windowOffsetX, window->windowOffsetY,
window->windowWidth, window->windowHeight);
xf_send_rail_client_event(channels, RDP_EVENT_TYPE_RAIL_CLIENT_WINDOW_MOVE, &window_move);
}
}
void xf_rail_end_local_move(xfInfo* xfi, rdpWindow *window)
{
xfWindow* xfw;
rdpChannels* channels;
RAIL_WINDOW_MOVE_ORDER window_move;
rdpInput* input = xfi->instance->input;
int x,y;
Window root_window;
Window child_window;
unsigned int mask;
int child_x;
int child_y;
xfw = (xfWindow*) window->extra;
channels = xfi->_context->channels;
DEBUG_X11_LMS("window=0x%X rc={l=%d t=%d r=%d b=%d} w=%d h=%d",
(UINT32) xfw->handle,
xfw->left, xfw->top, xfw->right, xfw->bottom,
xfw->width, xfw->height);
/*
* Although the rail server can give negative window coordinates when updating windowOffsetX and windowOffsetY,
* we can only send unsigned integers to the rail server. Therefore, we always bring negative coordinates up to 0 when
* attempting to adjust the rail window.
*/
UINT32 offsetX = 0;
UINT32 offsetY = 0;
if (window->windowOffsetX < 0)
offsetX = offsetX - window->windowOffsetX;
if (window->windowOffsetY < 0)
offsetY = offsetY - window->windowOffsetY;
/*
* For keyboard moves send and explicit update to RDP server
*/
window_move.windowId = window->windowId;
/*
* Calculate new offsets for the rail server window
* Negative offset correction + rail server window offset + (difference in visibleOffset and new window local offset)
*/
window_move.left = offsetX + window->windowOffsetX + (xfw->left - window->visibleOffsetX);
window_move.top = offsetY + window->windowOffsetY + (xfw->top - window->visibleOffsetY);
window_move.right = window_move.left + xfw->width; /* In the update to RDP the position is one past the window */
window_move.bottom = window_move.top + xfw->height;
xf_send_rail_client_event(channels,
RDP_EVENT_TYPE_RAIL_CLIENT_WINDOW_MOVE, &window_move);
/*
* Simulate button up at new position to end the local move (per RDP spec)
*/
XQueryPointer(xfi->display, xfw->handle,
&root_window, &child_window,
&x, &y, &child_x, &child_y, &mask);
input->MouseEvent(input, PTR_FLAGS_BUTTON1, x, y);
/* only send the mouse coordinates if not a keyboard move or size */
if ((xfw->local_move.direction != _NET_WM_MOVERESIZE_MOVE_KEYBOARD) &&
(xfw->local_move.direction != _NET_WM_MOVERESIZE_SIZE_KEYBOARD))
{
input->MouseEvent(input, PTR_FLAGS_BUTTON1, x, y);
DEBUG_X11_LMS("Mouse coordinates. x= %i, y= %i", x, y);
}
/*
* Proactively update the RAIL window dimensions. There is a race condition where
* we can start to receive GDI orders for the new window dimensions before we
* receive the RAIL ORDER for the new window size. This avoids that race condition.
*/
window->windowOffsetX = offsetX + window->windowOffsetX + (xfw->left - window->visibleOffsetX);
window->windowOffsetY = offsetY + window->windowOffsetY + (xfw->top - window->visibleOffsetY);
window->windowWidth = xfw->width;
window->windowHeight = xfw->height;
xfw->local_move.state = LMS_TERMINATING;
}
void xf_process_rail_get_sysparams_event(xfInfo* xfi, rdpChannels* channels, RDP_EVENT* event)
{
RAIL_SYSPARAM_ORDER* sysparam;
sysparam = (RAIL_SYSPARAM_ORDER*) event->user_data;
sysparam->workArea.left = xfi->workArea.x;
sysparam->workArea.top = xfi->workArea.y;
sysparam->workArea.right = xfi->workArea.x + xfi->workArea.width;
sysparam->workArea.bottom = xfi->workArea.y + xfi->workArea.height;
sysparam->taskbarPos.left = 0;
sysparam->taskbarPos.top = 0;
sysparam->taskbarPos.right = 0;
sysparam->taskbarPos.bottom = 0;
sysparam->dragFullWindows = FALSE;
xf_send_rail_client_event(channels, RDP_EVENT_TYPE_RAIL_CLIENT_SET_SYSPARAMS, sysparam);
}
const char* error_code_names[] =
{
"RAIL_EXEC_S_OK",
"RAIL_EXEC_E_HOOK_NOT_LOADED",
"RAIL_EXEC_E_DECODE_FAILED",
"RAIL_EXEC_E_NOT_IN_ALLOWLIST",
"RAIL_EXEC_E_FILE_NOT_FOUND",
"RAIL_EXEC_E_FAIL",
"RAIL_EXEC_E_SESSION_LOCKED"
};
void xf_process_rail_exec_result_event(xfInfo* xfi, rdpChannels* channels, RDP_EVENT* event)
{
RAIL_EXEC_RESULT_ORDER* exec_result;
exec_result = (RAIL_EXEC_RESULT_ORDER*) event->user_data;
if (exec_result->execResult != RAIL_EXEC_S_OK)
{
printf("RAIL exec error: execResult=%s NtError=0x%X\n",
error_code_names[exec_result->execResult], exec_result->rawResult);
xfi->disconnect = True;
}
else
{
xf_rail_enable_remoteapp_mode(xfi);
}
}
void xf_process_rail_server_sysparam_event(xfInfo* xfi, rdpChannels* channels, RDP_EVENT* event)
{
RAIL_SYSPARAM_ORDER* sysparam = (RAIL_SYSPARAM_ORDER*) event->user_data;
switch (sysparam->param)
{
case SPI_SET_SCREEN_SAVE_ACTIVE:
break;
case SPI_SET_SCREEN_SAVE_SECURE:
break;
}
}
void xf_process_rail_server_minmaxinfo_event(xfInfo* xfi, rdpChannels* channels, RDP_EVENT* event)
{
rdpRail* rail;
rdpWindow* rail_window = NULL;
RAIL_MINMAXINFO_ORDER* minmax = (RAIL_MINMAXINFO_ORDER*) event->user_data;
rail = ((rdpContext*) xfi->context)->rail;
rail_window = window_list_get_by_id(rail->list, minmax->windowId);
if (rail_window != NULL)
{
xfWindow * window = NULL;
window = (xfWindow *) rail_window->extra;
DEBUG_X11_LMS("windowId=0x%X maxWidth=%d maxHeight=%d maxPosX=%d maxPosY=%d "
"minTrackWidth=%d minTrackHeight=%d maxTrackWidth=%d maxTrackHeight=%d",
minmax->windowId, minmax->maxWidth, minmax->maxHeight,
(INT16)minmax->maxPosX, (INT16)minmax->maxPosY,
minmax->minTrackWidth, minmax->minTrackHeight,
minmax->maxTrackWidth, minmax->maxTrackHeight);
xf_SetWindowMinMaxInfo(xfi, window, minmax->maxWidth, minmax->maxHeight, minmax->maxPosX, minmax->maxPosY,
minmax->minTrackWidth, minmax->minTrackHeight, minmax->maxTrackWidth, minmax->maxTrackHeight);
}
}
const char* movetype_names[] =
{
"(invalid)",
"RAIL_WMSZ_LEFT",
"RAIL_WMSZ_RIGHT",
"RAIL_WMSZ_TOP",
"RAIL_WMSZ_TOPLEFT",
"RAIL_WMSZ_TOPRIGHT",
"RAIL_WMSZ_BOTTOM",
"RAIL_WMSZ_BOTTOMLEFT",
"RAIL_WMSZ_BOTTOMRIGHT",
"RAIL_WMSZ_MOVE",
"RAIL_WMSZ_KEYMOVE",
"RAIL_WMSZ_KEYSIZE"
};
void xf_process_rail_server_localmovesize_event(xfInfo* xfi, rdpChannels* channels, RDP_EVENT* event)
{
int x, y;
rdpRail* rail;
int direction = 0;
Window child_window;
rdpWindow* rail_window = NULL;
RAIL_LOCALMOVESIZE_ORDER* movesize = (RAIL_LOCALMOVESIZE_ORDER*) event->user_data;
rail = ((rdpContext*) xfi->context)->rail;
rail_window = window_list_get_by_id(rail->list, movesize->windowId);
if (rail_window != NULL)
{
xfWindow* xfw = NULL;
xfw = (xfWindow*) rail_window->extra;
DEBUG_X11_LMS("windowId=0x%X isMoveSizeStart=%d moveSizeType=%s PosX=%d PosY=%d",
movesize->windowId, movesize->isMoveSizeStart,
movetype_names[movesize->moveSizeType], (INT16) movesize->posX, (INT16) movesize->posY);
switch (movesize->moveSizeType)
{
case RAIL_WMSZ_LEFT: //0x1
direction = _NET_WM_MOVERESIZE_SIZE_LEFT;
x = movesize->posX;
y = movesize->posY;
break;
case RAIL_WMSZ_RIGHT: //0x2
direction = _NET_WM_MOVERESIZE_SIZE_RIGHT;
x = movesize->posX;
y = movesize->posY;
break;
case RAIL_WMSZ_TOP: //0x3
direction = _NET_WM_MOVERESIZE_SIZE_TOP;
x = movesize->posX;
y = movesize->posY;
break;
case RAIL_WMSZ_TOPLEFT: //0x4
direction = _NET_WM_MOVERESIZE_SIZE_TOPLEFT;
x = movesize->posX;
y = movesize->posY;
break;
case RAIL_WMSZ_TOPRIGHT: //0x5
direction = _NET_WM_MOVERESIZE_SIZE_TOPRIGHT;
x = movesize->posX;
y = movesize->posY;
break;
case RAIL_WMSZ_BOTTOM: //0x6
direction = _NET_WM_MOVERESIZE_SIZE_BOTTOM;
x = movesize->posX;
y = movesize->posY;
break;
case RAIL_WMSZ_BOTTOMLEFT: //0x7
direction = _NET_WM_MOVERESIZE_SIZE_BOTTOMLEFT;
x = movesize->posX;
y = movesize->posY;
break;
case RAIL_WMSZ_BOTTOMRIGHT: //0x8
direction = _NET_WM_MOVERESIZE_SIZE_BOTTOMRIGHT;
x = movesize->posX;
y = movesize->posY;
break;
case RAIL_WMSZ_MOVE: //0x9
direction = _NET_WM_MOVERESIZE_MOVE;
XTranslateCoordinates(xfi->display, xfw->handle,
RootWindowOfScreen(xfi->screen),
movesize->posX, movesize->posY, &x, &y, &child_window);
break;
case RAIL_WMSZ_KEYMOVE: //0xA
direction = _NET_WM_MOVERESIZE_MOVE_KEYBOARD;
x = movesize->posX;
y = movesize->posY;
/* FIXME: local keyboard moves not working */
return;
case RAIL_WMSZ_KEYSIZE: //0xB
direction = _NET_WM_MOVERESIZE_SIZE_KEYBOARD;
x = movesize->posX;
y = movesize->posY;
/* FIXME: local keyboard moves not working */
return;
}
if (movesize->isMoveSizeStart)
{
xf_StartLocalMoveSize(xfi, xfw, direction, x, y);
} else {
xf_EndLocalMoveSize(xfi, xfw);
}
}
}
void xf_process_rail_appid_resp_event(xfInfo* xfi, rdpChannels* channels, RDP_EVENT* event)
{
RAIL_GET_APPID_RESP_ORDER* appid_resp =
(RAIL_GET_APPID_RESP_ORDER*) event->user_data;
printf("Server Application ID Response PDU: windowId=0x%X "
"applicationId=(length=%d dump)\n",
appid_resp->windowId, appid_resp->applicationId.length);
winpr_HexDump(appid_resp->applicationId.string, appid_resp->applicationId.length);
}
void xf_process_rail_langbarinfo_event(xfInfo* xfi, rdpChannels* channels, RDP_EVENT* event)
{
RAIL_LANGBAR_INFO_ORDER* langbar =
(RAIL_LANGBAR_INFO_ORDER*) event->user_data;
printf("Language Bar Information PDU: languageBarStatus=0x%X\n",
langbar->languageBarStatus);
}
void xf_process_rail_event(xfInfo* xfi, rdpChannels* channels, RDP_EVENT* event)
{
switch (event->event_type)
{
case RDP_EVENT_TYPE_RAIL_CHANNEL_GET_SYSPARAMS:
xf_process_rail_get_sysparams_event(xfi, channels, event);
break;
case RDP_EVENT_TYPE_RAIL_CHANNEL_EXEC_RESULTS:
xf_process_rail_exec_result_event(xfi, channels, event);
break;
case RDP_EVENT_TYPE_RAIL_CHANNEL_SERVER_SYSPARAM:
xf_process_rail_server_sysparam_event(xfi, channels, event);
break;
case RDP_EVENT_TYPE_RAIL_CHANNEL_SERVER_MINMAXINFO:
xf_process_rail_server_minmaxinfo_event(xfi, channels, event);
break;
case RDP_EVENT_TYPE_RAIL_CHANNEL_SERVER_LOCALMOVESIZE:
xf_process_rail_server_localmovesize_event(xfi, channels, event);
break;
case RDP_EVENT_TYPE_RAIL_CHANNEL_APPID_RESP:
xf_process_rail_appid_resp_event(xfi, channels, event);
break;
case RDP_EVENT_TYPE_RAIL_CHANNEL_LANGBARINFO:
xf_process_rail_langbarinfo_event(xfi, channels, event);
break;
default:
break;
}
}