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Inside Wine; HWND と直接結びついているデータ

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Inside Wine; HWND と直接結びついているデータ


HWND と直接結びついているデータ

今分かっているだけで、大きく分けて 2種類ある。

1. typedef struct tagWND WND;

2. struct x11drv_win_data;

1. は、X Window に依存しないデータ。2. は X Window に依存するデータらしい。なお、WND が x11drv_win_data の基底クラス、というわけではなく、(完全に)独立したデータになっているらしい


struct x11drv_win_data


~/wine/dlls/winex11.drv/x11drv.h

/* x11drv private window data */

struct x11drv_win_data {
Display *display; /* display connection for the thread owning the window */
XVisualInfo vis; /* X visual used by this window */
Colormap colormap; /* colormap if non-default visual */
HWND hwnd; /* hwnd that this private data belongs to */
Window whole_window; /* X window for the complete window */
Window client_window; /* X window for the client area */
RECT window_rect; /* USER window rectangle relative to parent */
RECT whole_rect; /* X window rectangle for the whole window relative to parent */
RECT client_rect; /* client area relative to parent */
XIC xic; /* X input context */
BOOL managed : 1; /* is window managed? */
BOOL mapped : 1; /* is window mapped? (in either normal or iconic state) */
BOOL iconic : 1; /* is window in iconic state? */
BOOL embedded : 1; /* is window an XEMBED client? */
BOOL shaped : 1; /* is window using a custom region shape? */
BOOL layered : 1; /* is window layered and with valid attributes? */
BOOL use_alpha : 1; /* does window use an alpha channel? */
int wm_state; /* current value of the WM_STATE property */
DWORD net_wm_state; /* bit mask of active x11drv_net_wm_state values */
Window embedder; /* window id of embedder */
unsigned long configure_serial; /* serial number of last configure request */
struct window_surface *surface;
Pixmap icon_pixmap;
Pixmap icon_mask;
unsigned long *icon_bits;
unsigned int icon_size;
};


~/wine/dlls/user32.win.h

typedef struct tagWND

{
struct user_object obj; /* object header */
HWND parent; /* Window parent */
HWND owner; /* Window owner */
struct tagCLASS *class; /* Window class */
struct dce *dce; /* DCE pointer */
WNDPROC winproc; /* Window procedure */
DWORD tid; /* Owner thread id */
HINSTANCE hInstance; /* Window hInstance (from CreateWindow) */
RECT rectClient; /* Client area rel. to parent client area */
RECT rectWindow; /* Whole window rel. to parent client area */
RECT visible_rect; /* Visible part of the whole rect, rel. to parent client area */
RECT normal_rect; /* Normal window rect saved when maximized/minimized */
POINT min_pos; /* Position for minimized window */
POINT max_pos; /* Position for maximized window */
HWND icon_title; /* Icon title window */
LPWSTR text; /* Window text */
void *pScroll; /* Scroll-bar info */
DWORD dwStyle; /* Window style (from CreateWindow) */
DWORD dwExStyle; /* Extended style (from CreateWindowEx) */
UINT_PTR wIDmenu; /* ID or hmenu (from CreateWindow) */
DWORD helpContext; /* Help context ID */
UINT flags; /* Misc. flags (see below) */
HMENU hSysMenu; /* window's copy of System Menu */
HICON hIcon; /* window's icon */
HICON hIconSmall; /* window's small icon */
HICON hIconSmall2; /* window's secondary small icon, derived from hIcon */
struct window_surface *surface; /* Window surface if any */
struct tagDIALOGINFO *dlgInfo;/* Dialog additional info (dialogs only) */
int pixel_format; /* Pixel format set by the graphics driver */
int cbWndExtra; /* class cbWndExtra at window creation */
DWORD_PTR userdata; /* User private data */
DWORD wExtra[1]; /* Window extra bytes */
} WND;

#define WND_OTHER_PROCESS ((WND *)1) /* returned by WIN_GetPtr on unknown window handles */
#define WND_DESKTOP ((WND *)2)
/* returned by WIN_GetPtr on the desktop window */



~/wine/dlls/user32/user_private.h

enum user_obj_type {

USER_WINDOW = 1, /* window */
USER_MENU, /* menu */
USER_ACCEL, /* accelerator */
USER_ICON, /* icon or cursor */
USER_DWP /* DeferWindowPos structure */
};

struct user_object {
HANDLE handle;
enum user_obj_type type;
};



HWND から struct x11drv_win_data * の取得法

struct x11drv_win_data *data = get_win_data( hwnd );


HWND から WND * の取得法

WND   *win  = WIN_GetPtr( hwnd );


struct x11drv_win_data *get_win_data( HWND hwnd )


~/wine/dlls/winex11.drv/window.c

// Lock and return the X11 data structure associated with a window.

struct x11drv_win_data *get_win_data( HWND hwnd )
{
char *data;

if (!hwnd) return NULL;
EnterCriticalSection( &win_data_section );
if (!XFindContext( gdi_display, (XID)hwnd, win_data_context, &data ))
return (struct x11drv_win_data *)data;
LeaveCriticalSection( &win_data_section );
return NULL;
}



WND *WIN_GetPtr( HWND hwnd )


~/wine/dlls/user32/win.c

/***********************************************************************

* WIN_GetPtr
*
* Return a pointer to the WND structure if local to the process,
* or WND_OTHER_PROCESS if handle may be valid in other process.
* If ret value is a valid pointer, it must be released with WIN_ReleasePtr.
*/

WND *WIN_GetPtr( HWND hwnd )
{
WND *ptr;

if ((ptr = get_user_handle_ptr( hwnd, USER_WINDOW )) == WND_OTHER_PROCESS)
{
if (is_desktop_window( hwnd )) ptr = WND_DESKTOP;
}
return ptr;
}



struct x11drv_win_data を作成する関数

struct x11drv_win_data *X11DRV_create_win_data( HWND hwnd, const RECT *window_rect,

const RECT *client_rect )
{
・・・
}