niansa-misc/wine
1
0
Fork 0
mirror of synced 2025-03-07 03:53:26 +01:00
Code Issues Projects Releases Packages Wiki Activity

explorer: Create clipboard manager thread when creating a desktop.

Browse source 
Based on winex11.drv. Drivers that don't implement ClipboardWindowProc entry point will disable it by failing to create the window.

Signed-off-by: Jacek Caban <jacek@codeweavers.com>
This commit is contained in:
Jacek Caban 2022-05-31 14:11:50 +02:00 • committed by Alexandre Julliard
parent 806d85529f
commit d8a74e5cf9
2 changed files with 91 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
programs/explorer/Makefile.in
View file

@ -1,5 +1,5 @@
MODULE = explorer.exe
IMPORTS = rpcrt4 user32 gdi32 advapi32
IMPORTS = rpcrt4 user32 gdi32 advapi32 win32u
DELAYIMPORTS = comctl32 shell32 oleaut32 ole32 shlwapi
EXTRADLLFLAGS = -mwindows -municode

90
programs/explorer/desktop.c
View file

@ -29,6 +29,7 @@
#include <rpc.h>
#include <shlobj.h>
#include <shellapi.h>
#include <ntuser.h>
#include "exdisp.h"
#include "wine/debug.h"
@ -618,6 +619,91 @@ static void initialize_launchers( HWND hwnd )
}
}
/**************************************************************************
* wait_clipboard_mutex
*
* Make sure that there's only one clipboard thread per window station.
*/
static BOOL wait_clipboard_mutex(void)
{
static const WCHAR prefix[] = L"__wine_clipboard_";
WCHAR buffer[MAX_PATH + ARRAY_SIZE( prefix )];
HANDLE mutex;
memcpy( buffer, prefix, sizeof(prefix) );
if (!GetUserObjectInformationW( GetProcessWindowStation(), UOI_NAME,
buffer + ARRAY_SIZE( prefix ) - 1,
sizeof(buffer) - sizeof(prefix), NULL ))
{
ERR( "failed to get winstation name\n" );
return FALSE;
}
mutex = CreateMutexW( NULL, TRUE, buffer );
if (GetLastError() == ERROR_ALREADY_EXISTS)
{
TRACE( "waiting for mutex %s\n", debugstr_w( buffer ));
WaitForSingleObject( mutex, INFINITE );
}
return TRUE;
}
/**************************************************************************
* clipboard_wndproc
*
* Window procedure for the clipboard manager.
*/
static LRESULT CALLBACK clipboard_wndproc( HWND hwnd, UINT msg, WPARAM wp, LPARAM lp )
{
switch (msg)
{
case WM_NCCREATE:
case WM_CLIPBOARDUPDATE:
case WM_RENDERFORMAT:
case WM_TIMER:
case WM_DESTROYCLIPBOARD:
case WM_USER:
return NtUserMessageCall( hwnd, msg, wp, lp, 0, NtUserClipboardWindowProc, FALSE );
}
return DefWindowProcW( hwnd, msg, wp, lp );
}
/**************************************************************************
* clipboard_thread
*
* Thread running inside the desktop process to manage the clipboard
*/
static DWORD WINAPI clipboard_thread( void *arg )
{
static const WCHAR clipboard_classname[] = L"__wine_clipboard_manager";
WNDCLASSW class;
ATOM atom;
MSG msg;
if (!wait_clipboard_mutex()) return 0;
memset( &class, 0, sizeof(class) );
class.lpfnWndProc = clipboard_wndproc;
class.lpszClassName = clipboard_classname;
if (!(atom = RegisterClassW( &class )) && GetLastError() != ERROR_CLASS_ALREADY_EXISTS)
{
ERR( "could not register clipboard window class err %lu\n", GetLastError() );
return 0;
}
if (!CreateWindowW( clipboard_classname, NULL, 0, 0, 0, 0, 0, HWND_MESSAGE, 0, 0, NULL ))
{
TRACE( "failed to create clipboard window err %lu\n", GetLastError() );
UnregisterClassW( MAKEINTRESOURCEW(atom), NULL );
return 0;
}
while (GetMessageW( &msg, 0, 0, 0 )) DispatchMessageW( &msg );
return 0;
}
static WNDPROC desktop_orig_wndproc;
/* window procedure for the desktop window */
@ -961,6 +1047,8 @@ void manage_desktop( WCHAR *arg )
BOOL enable_shell = FALSE;
void (WINAPI *pShellDDEInit)( BOOL ) = NULL;
HMODULE shell32;
HANDLE thread;
DWORD id;
/* get the rest of the command line (if any) */
while (*p && !is_whitespace(*p)) p++;
@ -1025,6 +1113,8 @@ void manage_desktop( WCHAR *arg )
SetWindowPos( hwnd, 0, GetSystemMetrics(SM_XVIRTUALSCREEN), GetSystemMetrics(SM_YVIRTUALSCREEN),
GetSystemMetrics(SM_CXVIRTUALSCREEN), GetSystemMetrics(SM_CYVIRTUALSCREEN),
SWP_SHOWWINDOW );
thread = CreateThread( NULL, 0, clipboard_thread, NULL, 0, &id );
if (thread) CloseHandle( thread );
SystemParametersInfoW( SPI_SETDESKWALLPAPER, 0, NULL, FALSE );
ClipCursor( NULL );
initialize_display_settings();