| /* |
| * Window related functions |
| * |
| * Copyright 1993 Alexandre Julliard |
| */ |
| |
| static char Copyright[] = "Copyright Alexandre Julliard, 1993"; |
| |
| #include <X11/Intrinsic.h> |
| #include <X11/StringDefs.h> |
| #include <X11/Core.h> |
| #include <X11/Shell.h> |
| |
| #include "class.h" |
| #include "win.h" |
| #include "user.h" |
| #include "dce.h" |
| #include "sysmetrics.h" |
| #include "scroll.h" |
| |
| extern Display * display; |
| extern Colormap COLOR_WinColormap; |
| |
| extern void EVENT_RegisterWindow( Window w, HWND hwnd ); /* event.c */ |
| extern HMENU CopySysMenu(); /* menu.c */ |
| |
| HWND firstWindow = 0; |
| |
| /*********************************************************************** |
| * WIN_FindWndPtr |
| * |
| * Return a pointer to the WND structure corresponding to a HWND. |
| */ |
| WND * WIN_FindWndPtr( HWND hwnd ) |
| { |
| WND * ptr; |
| |
| if (!hwnd) return NULL; |
| ptr = (WND *) USER_HEAP_ADDR( hwnd ); |
| if (ptr->dwMagic != WND_MAGIC) return NULL; |
| return ptr; |
| } |
| |
| |
| /*********************************************************************** |
| * WIN_UnlinkWindow |
| * |
| * Remove a window from the siblings linked list. |
| */ |
| BOOL WIN_UnlinkWindow( HWND hwnd ) |
| { |
| HWND * curWndPtr; |
| WND * wndPtr = WIN_FindWndPtr( hwnd ); |
| |
| if (!wndPtr) return FALSE; |
| if (wndPtr->hwndParent) |
| { |
| WND * parentPtr = WIN_FindWndPtr( wndPtr->hwndParent ); |
| curWndPtr = &parentPtr->hwndChild; |
| } |
| else curWndPtr = &firstWindow; |
| |
| while (*curWndPtr != hwnd) |
| { |
| WND * curPtr = WIN_FindWndPtr( *curWndPtr ); |
| curWndPtr = &curPtr->hwndNext; |
| } |
| *curWndPtr = wndPtr->hwndNext; |
| return TRUE; |
| } |
| |
| |
| /*********************************************************************** |
| * WIN_LinkWindow |
| * |
| * Insert a window into the siblings linked list. |
| * The window is inserted after the specified window, which can also |
| * be specified as HWND_TOP or HWND_BOTTOM. |
| */ |
| BOOL WIN_LinkWindow( HWND hwnd, HWND hwndInsertAfter ) |
| { |
| HWND * hwndPtr = NULL; /* pointer to hwnd to change */ |
| |
| WND * wndPtr = WIN_FindWndPtr( hwnd ); |
| if (!wndPtr) return FALSE; |
| |
| if ((hwndInsertAfter == HWND_TOP) || (hwndInsertAfter == HWND_BOTTOM)) |
| { |
| /* Make hwndPtr point to the first sibling hwnd */ |
| if (wndPtr->hwndParent) |
| { |
| WND * parentPtr = WIN_FindWndPtr( wndPtr->hwndParent ); |
| if (parentPtr) hwndPtr = &parentPtr->hwndChild; |
| } |
| else hwndPtr = &firstWindow; |
| if (hwndInsertAfter == HWND_BOTTOM) /* Find last sibling hwnd */ |
| while (*hwndPtr) |
| { |
| WND * nextPtr = WIN_FindWndPtr( *hwndPtr ); |
| hwndPtr = &nextPtr->hwndNext; |
| } |
| } |
| else /* Normal case */ |
| { |
| WND * afterPtr = WIN_FindWndPtr( hwndInsertAfter ); |
| if (afterPtr) hwndPtr = &afterPtr->hwndNext; |
| } |
| if (!hwndPtr) return FALSE; |
| wndPtr->hwndNext = *hwndPtr; |
| *hwndPtr = hwnd; |
| return TRUE; |
| } |
| |
| |
| /*********************************************************************** |
| * WIN_FindWinToRepaint |
| * |
| * Find a window that needs repaint. |
| */ |
| HWND WIN_FindWinToRepaint( HWND hwnd ) |
| { |
| WND * wndPtr; |
| |
| if (!hwnd) hwnd = firstWindow; |
| for ( ; hwnd != 0; hwnd = wndPtr->hwndNext ) |
| { |
| if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return 0; |
| if (wndPtr->hrgnUpdate) return hwnd; |
| if (wndPtr->hwndChild) |
| { |
| HWND child; |
| if ((child = WIN_FindWinToRepaint( wndPtr->hwndChild ))) |
| return child; |
| } |
| } |
| return 0; |
| } |
| |
| |
| /*********************************************************************** |
| * WIN_SendParentNotify |
| * |
| * Send a WM_PARENTNOTIFY to all ancestors of the given window, unless |
| * the window has the WS_EX_NOPARENTNOTIFY style. |
| */ |
| static void WIN_SendParentNotify( HWND hwnd, WND * wndPtr, WORD event ) |
| { |
| HWND current = wndPtr->hwndParent; |
| |
| if (wndPtr->dwExStyle & WS_EX_NOPARENTNOTIFY) return; |
| while (current) |
| { |
| SendMessage( current, WM_PARENTNOTIFY, |
| event, MAKELONG( hwnd, wndPtr->wIDmenu ) ); |
| current = GetParent( current ); |
| } |
| } |
| |
| |
| /*********************************************************************** |
| * CreateWindow (USER.41) |
| */ |
| HWND CreateWindow( LPSTR className, LPSTR windowName, |
| DWORD style, short x, short y, short width, short height, |
| HWND parent, HMENU menu, HANDLE instance, LPSTR data ) |
| { |
| return CreateWindowEx( 0, className, windowName, style, |
| x, y, width, height, parent, menu, instance, data ); |
| } |
| |
| |
| /*********************************************************************** |
| * CreateWindowEx (USER.452) |
| */ |
| HWND CreateWindowEx( DWORD exStyle, LPSTR className, LPSTR windowName, |
| DWORD style, short x, short y, short width, short height, |
| HWND parent, HMENU menu, HANDLE instance, LPSTR data ) |
| { |
| HANDLE class, hwnd; |
| CLASS *classPtr; |
| WND *wndPtr, *parentPtr = NULL; |
| CREATESTRUCT *createStruct; |
| HANDLE hcreateStruct; |
| int wmcreate; |
| XSetWindowAttributes win_attr; |
| Window parentWindow; |
| int x_rel, y_rel; |
| LPPOPUPMENU lpbar; |
| |
| #ifdef DEBUG_WIN |
| printf( "CreateWindowEx: %d '%s' '%s' %d,%d %dx%d %08x %x\n", |
| exStyle, className, windowName, x, y, width, height, style, parent); |
| #endif |
| |
| if (x == CW_USEDEFAULT) x = y = 0; |
| if (width == CW_USEDEFAULT) |
| { |
| width = 600; |
| height = 400; |
| } |
| if (width == 0) width = 1; |
| if (height == 0) height = 1; |
| |
| /* Find the parent and class */ |
| |
| if (parent) |
| { |
| /* Check if parent is valid */ |
| parentPtr = WIN_FindWndPtr( parent ); |
| if (!parent) return 0; |
| } |
| else if (style & WS_CHILD) return 0; /* WS_CHILD needs a parent */ |
| |
| if (!(class = CLASS_FindClassByName( className, &classPtr ))) { |
| printf("CreateWindow BAD CLASSNAME '%s' !\n", className); |
| return 0; |
| } |
| |
| /* Correct the window style */ |
| |
| if (!(style & (WS_POPUP | WS_CHILD))) /* Overlapped window */ |
| style |= WS_CAPTION | WS_CLIPSIBLINGS; |
| if (exStyle & WS_EX_DLGMODALFRAME) style &= ~WS_THICKFRAME; |
| |
| /* Create the window structure */ |
| |
| hwnd = USER_HEAP_ALLOC(GMEM_MOVEABLE, sizeof(WND)+classPtr->wc.cbWndExtra); |
| if (!hwnd) return 0; |
| |
| /* Fill the structure */ |
| |
| wndPtr = (WND *) USER_HEAP_ADDR( hwnd ); |
| wndPtr->hwndNext = 0; |
| wndPtr->hwndChild = 0; |
| wndPtr->dwMagic = WND_MAGIC; |
| wndPtr->hwndParent = (style & WS_CHILD) ? parent : 0; |
| wndPtr->hwndOwner = (style & WS_CHILD) ? 0 : parent; |
| wndPtr->hClass = class; |
| wndPtr->hInstance = instance; |
| wndPtr->rectWindow.left = x; |
| wndPtr->rectWindow.top = y; |
| wndPtr->rectWindow.right = x + width; |
| wndPtr->rectWindow.bottom = y + height; |
| wndPtr->rectClient = wndPtr->rectWindow; |
| wndPtr->rectNormal = wndPtr->rectWindow; |
| wndPtr->ptIconPos.x = -1; |
| wndPtr->ptIconPos.y = -1; |
| wndPtr->ptMaxPos.x = -1; |
| wndPtr->ptMaxPos.y = -1; |
| wndPtr->hmemTaskQ = GetTaskQueue(0); |
| wndPtr->hrgnUpdate = 0; |
| wndPtr->hwndLastActive = 0; |
| wndPtr->lpfnWndProc = classPtr->wc.lpfnWndProc; |
| wndPtr->dwStyle = style; |
| wndPtr->dwExStyle = exStyle; |
| wndPtr->hmenuSystem = 0; |
| wndPtr->wIDmenu = menu; |
| wndPtr->hText = 0; |
| wndPtr->flags = 0; |
| wndPtr->hCursor = 0; |
| wndPtr->VScroll = NULL; |
| wndPtr->HScroll = NULL; |
| wndPtr->hSysMenu = 0; |
| wndPtr->hWndMenuBar = 0; |
| |
| if (classPtr->wc.cbWndExtra) |
| memset( wndPtr->wExtra, 0, classPtr->wc.cbWndExtra ); |
| if (classPtr->wc.style & CS_DBLCLKS) wndPtr->flags |= WIN_DOUBLE_CLICKS; |
| classPtr->cWindows++; |
| |
| /* Get class or window DC if needed */ |
| if (classPtr->wc.style & CS_OWNDC) |
| { |
| wndPtr->flags |= WIN_OWN_DC; |
| wndPtr->hdce = DCE_AllocDCE( DCE_WINDOW_DC ); |
| } |
| else if (classPtr->wc.style & CS_CLASSDC) |
| { |
| wndPtr->flags |= WIN_CLASS_DC; |
| wndPtr->hdce = classPtr->hdce; |
| } |
| else wndPtr->hdce = 0; |
| |
| /* Insert the window in the linked list */ |
| |
| WIN_LinkWindow( hwnd, HWND_TOP ); |
| |
| /* Create the X window */ |
| |
| win_attr.event_mask = ExposureMask | KeyPressMask | KeyReleaseMask | |
| PointerMotionMask | ButtonPressMask | |
| ButtonReleaseMask | FocusChangeMask | EnterWindowMask; |
| win_attr.override_redirect = True; |
| win_attr.colormap = COLOR_WinColormap; |
| if (style & WS_CHILD) |
| { |
| parentWindow = parentPtr->window; |
| x_rel = x + parentPtr->rectClient.left - parentPtr->rectWindow.left; |
| y_rel = y + parentPtr->rectClient.top - parentPtr->rectWindow.top; |
| } |
| else |
| { |
| parentWindow = DefaultRootWindow( display ); |
| x_rel = x; |
| y_rel = y; |
| } |
| wndPtr->window = XCreateWindow(display, parentWindow, |
| x_rel, y_rel, width, height, 0, |
| CopyFromParent, InputOutput, CopyFromParent, |
| CWEventMask | CWOverrideRedirect | |
| CWColormap, &win_attr ); |
| XStoreName( display, wndPtr->window, windowName ); |
| |
| /* Send the WM_CREATE message */ |
| |
| hcreateStruct = USER_HEAP_ALLOC( GMEM_MOVEABLE, sizeof(CREATESTRUCT) ); |
| createStruct = (CREATESTRUCT *) USER_HEAP_ADDR( hcreateStruct ); |
| createStruct->lpCreateParams = data; |
| createStruct->hInstance = instance; |
| createStruct->hMenu = menu; |
| createStruct->hwndParent = parent; |
| createStruct->cx = width; |
| createStruct->cy = height; |
| createStruct->x = x; |
| createStruct->y = y; |
| createStruct->style = style; |
| createStruct->lpszName = windowName; |
| createStruct->lpszClass = className; |
| createStruct->dwExStyle = 0; |
| |
| wmcreate = SendMessage( hwnd, WM_NCCREATE, 0, (LONG)createStruct ); |
| if (!wmcreate) wmcreate = -1; |
| else |
| { |
| /* Send WM_NCCALCSIZE message */ |
| NCCALCSIZE_PARAMS *params; |
| HANDLE hparams; |
| hparams = USER_HEAP_ALLOC( GMEM_MOVEABLE, sizeof(*params) ); |
| if (hparams) |
| { |
| params = (NCCALCSIZE_PARAMS *) USER_HEAP_ADDR( hparams ); |
| params->rgrc[0] = wndPtr->rectWindow; |
| params->lppos = NULL; |
| SendMessage( hwnd, WM_NCCALCSIZE, FALSE, (LONG)params ); |
| wndPtr->rectClient = params->rgrc[0]; |
| USER_HEAP_FREE( hparams ); |
| } |
| wmcreate = SendMessage( hwnd, WM_CREATE, 0, (LONG)createStruct ); |
| } |
| |
| USER_HEAP_FREE( hcreateStruct ); |
| |
| if (wmcreate == -1) |
| { |
| /* Abort window creation */ |
| |
| WIN_UnlinkWindow( hwnd ); |
| XDestroyWindow( display, wndPtr->window ); |
| if (wndPtr->flags & WIN_OWN_DC) DCE_FreeDCE( wndPtr->hdce ); |
| classPtr->cWindows--; |
| USER_HEAP_FREE( hwnd ); |
| return 0; |
| } |
| |
| /* Create scrollbars */ |
| |
| if ((style & WS_SYSMENU) == WS_SYSMENU) { |
| wndPtr->hSysMenu = CopySysMenu(); |
| } |
| if (((style & WS_CHILD) != WS_CHILD) && (wndPtr->wIDmenu != 0)) { |
| lpbar = (LPPOPUPMENU) GlobalLock(wndPtr->wIDmenu); |
| if (lpbar != NULL) { |
| lpbar->ownerWnd = hwnd; |
| wndPtr->hWndMenuBar = CreateWindow("POPUPMENU", "", |
| WS_CHILD | WS_CLIPSIBLINGS | WS_VISIBLE, |
| 0, 0, width, 20, hwnd, 2, instance, (LPSTR)lpbar); |
| } |
| } |
| /* Create scrollbars */ |
| if ((style & WS_VSCROLL) == WS_VSCROLL || |
| (style & WS_HSCROLL) == WS_HSCROLL) { |
| NC_CreateScrollBars(hwnd); |
| } |
| EVENT_RegisterWindow( wndPtr->window, hwnd ); |
| |
| WIN_SendParentNotify( hwnd, wndPtr, WM_CREATE ); |
| |
| if (style & WS_VISIBLE) ShowWindow( hwnd, SW_SHOW ); |
| return hwnd; |
| } |
| |
| /*********************************************************************** |
| * DestroyWindow (USER.53) |
| */ |
| BOOL DestroyWindow( HWND hwnd ) |
| { |
| WND * wndPtr; |
| CLASS * classPtr; |
| |
| /* Initialisation */ |
| |
| if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return FALSE; |
| if (!(classPtr = CLASS_FindClassPtr( wndPtr->hClass ))) return FALSE; |
| WIN_SendParentNotify( hwnd, wndPtr, WM_DESTROY ); |
| |
| /* Send destroy messages */ |
| |
| SendMessage( hwnd, WM_DESTROY, 0, 0 ); |
| SendMessage( hwnd, WM_NCDESTROY, 0, 0 ); |
| |
| /* Destroy all children */ |
| |
| if (wndPtr->VScroll) free(wndPtr->VScroll); |
| if (wndPtr->HScroll) free(wndPtr->HScroll); |
| while (wndPtr->hwndChild) /* The child removes itself from the list */ |
| DestroyWindow( wndPtr->hwndChild ); |
| |
| /* Remove the window from the linked list */ |
| |
| WIN_UnlinkWindow( hwnd ); |
| |
| /* Destroy the window */ |
| |
| wndPtr->dwMagic = 0; /* Mark it as invalid */ |
| XDestroyWindow( display, wndPtr->window ); |
| if (wndPtr->flags & WIN_OWN_DC) DCE_FreeDCE( wndPtr->hdce ); |
| classPtr->cWindows--; |
| USER_HEAP_FREE( hwnd ); |
| /* |
| printf("End of DestroyWindow // hwnd=%04X !\n", hwnd); |
| */ |
| return TRUE; |
| } |
| |
| |
| /*********************************************************************** |
| * CloseWindow (USER.43) |
| */ |
| void CloseWindow(HWND hWnd) |
| { |
| WND * wndPtr = WIN_FindWndPtr(hWnd); |
| if (wndPtr->dwStyle & WS_CHILD) return; |
| ShowWindow(hWnd, SW_MINIMIZE); |
| } |
| |
| |
| |
| /*********************************************************************** |
| * OpenIcon (USER.44) |
| */ |
| BOOL OpenIcon(HWND hWnd) |
| { |
| if (!IsIconic(hWnd)) return FALSE; |
| ShowWindow(hWnd, SW_SHOWNORMAL); |
| return(TRUE); |
| } |
| |
| |
| |
| /*********************************************************************** |
| * FindWindow (USER.50) |
| */ |
| HWND FindWindow(LPSTR ClassMatch, LPSTR TitleMatch) |
| { |
| return((HWND)NULL); |
| } |
| |
| |
| /*********************************************************************** |
| * UpdateWindow (USER.124) |
| */ |
| void UpdateWindow( HWND hwnd ) |
| { |
| if (GetUpdateRect( hwnd, NULL, FALSE )) |
| { |
| if (IsWindowVisible( hwnd )) SendMessage( hwnd, WM_PAINT, 0, 0 ); |
| } |
| } |
| |
| |
| /********************************************************************** |
| * GetDesktopWindow (USER.286) |
| */ |
| HWND GetDesktopWindow() |
| { |
| return 0; |
| } |
| |
| |
| |
| /********************************************************************** |
| * GetWindowWord (USER.133) |
| */ |
| WORD GetWindowWord( HWND hwnd, short offset ) |
| { |
| WND * wndPtr = WIN_FindWndPtr( hwnd ); |
| if (!wndPtr) return 0; |
| if (offset >= 0) return *(WORD *)(((char *)wndPtr->wExtra) + offset); |
| switch(offset) |
| { |
| case GWW_ID: return wndPtr->wIDmenu; |
| case GWW_HWNDPARENT: return wndPtr->hwndParent; |
| case GWW_HINSTANCE: return wndPtr->hInstance; |
| } |
| return 0; |
| } |
| |
| |
| /********************************************************************** |
| * SetWindowWord (USER.134) |
| */ |
| WORD SetWindowWord( HWND hwnd, short offset, WORD newval ) |
| { |
| WORD *ptr, retval; |
| WND * wndPtr = WIN_FindWndPtr( hwnd ); |
| if (!wndPtr) return 0; |
| if (offset >= 0) ptr = (WORD *)(((char *)wndPtr->wExtra) + offset); |
| else switch(offset) |
| { |
| case GWW_ID: ptr = &wndPtr->wIDmenu; |
| case GWW_HINSTANCE: ptr = &wndPtr->hInstance; |
| default: return 0; |
| } |
| retval = *ptr; |
| *ptr = newval; |
| return retval; |
| } |
| |
| |
| |
| /******************************************************************* |
| * WIN_SetSensitive |
| * |
| * sets hWnd and all children to the same sensitivity |
| * |
| * sets hWnd sensitive and then calls SetSensitive on hWnd's child |
| * and all of hWnd's child's Next windows |
| */ |
| static BOOL WIN_SetSensitive(HWND hWnd, BOOL fEnable) |
| { |
| WND *wndPtr; |
| HWND hwnd; |
| |
| printf("in SetSenitive\n"); |
| |
| if (!hWnd) return 0; |
| if (!(wndPtr = WIN_FindWndPtr(hWnd))) return 0; |
| |
| |
| if (fEnable) { |
| wndPtr->dwStyle &= ~WS_DISABLED; |
| } else { |
| wndPtr->dwStyle |= WS_DISABLED; |
| } |
| |
| hwnd=wndPtr->hwndChild; |
| while (hwnd) { /* mk next child sens */ |
| WIN_SetSensitive(hwnd, fEnable); |
| if ( !(wndPtr=WIN_FindWndPtr(hwnd)) ) return 0; |
| hwnd=wndPtr->hwndNext; |
| } |
| return 1; |
| |
| } |
| |
| /******************************************************************* |
| * EnableWindow (USER.34) |
| * |
| * |
| */ |
| |
| BOOL EnableWindow(HWND hWnd, BOOL fEnable) |
| { |
| WND *wndPtr; |
| int eprev; |
| |
| if (hWnd == 0) return 0; |
| |
| wndPtr = WIN_FindWndPtr(hWnd); |
| if (wndPtr == 0) return 0; |
| |
| eprev = ! (wndPtr->dwStyle & WS_DISABLED); |
| |
| if (fEnable != eprev) { /* change req */ |
| printf("changing window\n"); |
| WIN_SetSensitive(hWnd, fEnable); |
| SendMessage(hWnd, WM_ENABLE, (WORD)fEnable, 0); |
| } |
| return !eprev; |
| } |
| |
| /*********************************************************************** |
| * IsWindowEnabled (USER.35) |
| */ |
| |
| BOOL IsWindowEnabled(HWND hWnd) |
| { |
| WND * wndPtr; |
| |
| if (hWnd == 0) return 0; |
| wndPtr = WIN_FindWndPtr(hWnd); |
| if (wndPtr == 0) return 0; |
| |
| return !(wndPtr->dwStyle & WS_DISABLED); |
| } |
| |
| |
| |
| |
| /********************************************************************** |
| * GetWindowLong (USER.135) |
| */ |
| LONG GetWindowLong( HWND hwnd, short offset ) |
| { |
| WND * wndPtr = WIN_FindWndPtr( hwnd ); |
| if (!wndPtr) return 0; |
| if (offset >= 0) return *(LONG *)(((char *)wndPtr->wExtra) + offset); |
| switch(offset) |
| { |
| case GWL_STYLE: return wndPtr->dwStyle; |
| case GWL_EXSTYLE: return wndPtr->dwExStyle; |
| case GWL_WNDPROC: return (LONG)wndPtr->lpfnWndProc; |
| } |
| return 0; |
| } |
| |
| |
| /********************************************************************** |
| * SetWindowLong (USER.136) |
| */ |
| LONG SetWindowLong( HWND hwnd, short offset, LONG newval ) |
| { |
| LONG *ptr, retval; |
| WND * wndPtr = WIN_FindWndPtr( hwnd ); |
| if (!wndPtr) return 0; |
| if (offset >= 0) ptr = (LONG *)(((char *)wndPtr->wExtra) + offset); |
| else switch(offset) |
| { |
| case GWL_STYLE: ptr = &wndPtr->dwStyle; |
| case GWL_EXSTYLE: ptr = &wndPtr->dwExStyle; |
| case GWL_WNDPROC: ptr = (LONG *)(&wndPtr->lpfnWndProc); |
| default: return 0; |
| } |
| retval = *ptr; |
| *ptr = newval; |
| return retval; |
| } |
| |
| |
| /******************************************************************* |
| * GetWindowText (USER.36) |
| */ |
| int GetWindowText(HWND hwnd, LPSTR lpString, int nMaxCount) |
| { |
| return (int)SendMessage(hwnd, WM_GETTEXT, (WORD)nMaxCount, |
| (DWORD)lpString); |
| } |
| |
| /******************************************************************* |
| * SetWindowText (USER.37) |
| */ |
| void SetWindowText(HWND hwnd, LPSTR lpString) |
| { |
| SendMessage(hwnd, WM_SETTEXT, (WORD)NULL, (DWORD)lpString); |
| } |
| |
| /******************************************************************* |
| * GetWindowTextLength (USER.38) |
| */ |
| int GetWindowTextLength(HWND hwnd) |
| { |
| return (int)SendMessage(hwnd, WM_GETTEXTLENGTH, (WORD)NULL, |
| (DWORD)NULL); |
| } |
| |
| |
| /******************************************************************* |
| * IsWindow (USER.47) |
| */ |
| BOOL IsWindow( HWND hwnd ) |
| { |
| WND * wndPtr = WIN_FindWndPtr( hwnd ); |
| return ((wndPtr != NULL) && (wndPtr->dwMagic == WND_MAGIC)); |
| } |
| |
| |
| /***************************************************************** |
| * GetParent (USER.46) |
| */ |
| HWND GetParent(HWND hwnd) |
| { |
| WND *wndPtr = WIN_FindWndPtr(hwnd); |
| if (!wndPtr) return 0; |
| return wndPtr->hwndParent; |
| } |
| |
| |
| /******************************************************************* |
| * IsChild (USER.48) |
| */ |
| BOOL IsChild( HWND parent, HWND child ) |
| { |
| HWND curChild; |
| WND * parentPtr; |
| WND * childPtr; |
| |
| if (!(parentPtr = WIN_FindWndPtr( parent ))) return FALSE; |
| curChild = parentPtr->hwndChild; |
| |
| while (curChild) |
| { |
| if (curChild == child) return TRUE; |
| if (IsChild( curChild, child )) return TRUE; |
| if (!(childPtr = WIN_FindWndPtr( curChild ))) return FALSE; |
| curChild = childPtr->hwndNext; |
| } |
| return FALSE; |
| } |
| |
| |
| /*********************************************************************** |
| * IsWindowVisible (USER.49) |
| */ |
| BOOL IsWindowVisible(HWND hWnd) |
| { |
| WND * wndPtr = WIN_FindWndPtr(hWnd); |
| if (wndPtr == 0) return(FALSE); |
| else return ((wndPtr->dwStyle & WS_VISIBLE) != 0); |
| } |
| |
| |
| |
| /******************************************************************* |
| * GetTopWindow (USER.229) |
| */ |
| HWND GetTopWindow( HWND hwnd ) |
| { |
| WND * wndPtr = WIN_FindWndPtr( hwnd ); |
| if (wndPtr) return wndPtr->hwndChild; |
| else return 0; |
| } |
| |
| |
| /******************************************************************* |
| * GetWindow (USER.262) |
| */ |
| HWND GetWindow( HWND hwnd, WORD rel ) |
| { |
| WND * wndPtr = WIN_FindWndPtr( hwnd ); |
| if (!wndPtr) return 0; |
| switch(rel) |
| { |
| case GW_HWNDFIRST: |
| if (wndPtr->hwndParent) |
| { |
| WND * parentPtr = WIN_FindWndPtr( wndPtr->hwndParent ); |
| return parentPtr->hwndChild; |
| } |
| else return firstWindow; |
| |
| case GW_HWNDLAST: |
| while (wndPtr->hwndNext) |
| { |
| hwnd = wndPtr->hwndNext; |
| wndPtr = WIN_FindWndPtr( hwnd ); |
| } |
| return hwnd; |
| |
| case GW_HWNDNEXT: |
| return wndPtr->hwndNext; |
| |
| case GW_HWNDPREV: |
| { |
| HWND hwndPrev; |
| |
| if (wndPtr->hwndParent) |
| { |
| WND * parentPtr = WIN_FindWndPtr( wndPtr->hwndParent ); |
| hwndPrev = parentPtr->hwndChild; |
| } |
| else hwndPrev = firstWindow; |
| if (hwndPrev == hwnd) return 0; |
| while (hwndPrev) |
| { |
| wndPtr = WIN_FindWndPtr( hwndPrev ); |
| if (wndPtr->hwndNext == hwnd) break; |
| hwndPrev = wndPtr->hwndNext; |
| } |
| return hwndPrev; |
| } |
| |
| case GW_OWNER: |
| return wndPtr->hwndOwner; |
| |
| case GW_CHILD: |
| return wndPtr->hwndChild; |
| } |
| return 0; |
| } |
| |
| |
| /******************************************************************* |
| * GetNextWindow (USER.230) |
| */ |
| HWND GetNextWindow( HWND hwnd, WORD flag ) |
| { |
| if ((flag != GW_HWNDNEXT) && (flag != GW_HWNDPREV)) return 0; |
| return GetWindow( hwnd, flag ); |
| } |
| |
| |
| |
| |
| /******************************************************************* |
| * EnumWindows (USER.54) |
| * |
| * o gets the desktop window and iterates over all the windows |
| * which are direct decendents of the desktop * by iterating over |
| * the desktop's child window and all the child windows next |
| * pointers |
| * |
| * o call wndenumprc for every child window the desktop has |
| * (parameters to Callback16 passed backwards so they are |
| * put in in pascal calling order) |
| * |
| * o if wndenumprc returns 0 exit |
| * |
| * * remove the HAS_DESKTOP_WINDOW ifdef when the GetDesktopWindow() call |
| * is fixed to actually return the desktop window |
| * |
| */ |
| BOOL EnumWindows(FARPROC wndenumprc, LPARAM lParam) |
| { |
| HWND hwnd = GetDesktopWindow(); |
| WND *wndPtr; |
| int result; |
| |
| #ifdef DEBUG_ENUM |
| printf("EnumWindows\n"); |
| #endif |
| #ifdef HAS_DESKTOP_WINDOW |
| if (!(wndPtr = WIN_FindWndPtr(hwnd))) return 0; |
| hwnd = wndPtr->hwndChild; |
| #else |
| hwnd = firstWindow; |
| #endif |
| |
| while (hwnd) { |
| char *ptr; |
| |
| if ( !(wndPtr=WIN_FindWndPtr(hwnd)) ) { |
| return 0; |
| } |
| #ifdef DEBUG_ENUM |
| if (XFetchName(display, wndPtr->window, &ptr) && ptr) |
| printf("found a window (%s)\n", ptr); |
| else |
| printf("found nameless parent window\n"); |
| #endif |
| result = CallBack16(wndenumprc, 2, lParam, (int) hwnd); |
| if ( ! result ) { |
| return 0; |
| } |
| hwnd=wndPtr->hwndNext; |
| } |
| return 1; /* for now */ |
| } |
| |
| /******************************************************************* |
| * WIN_EnumChildWin |
| * |
| * o hwnd is the first child to use, loop until all next windows |
| * are processed |
| * |
| * o call wdnenumprc with parameters in inverse order (pascal) |
| * |
| * o call ourselves with the next child window |
| * |
| */ |
| static BOOL WIN_EnumChildWin(HWND hwnd, FARPROC wndenumprc, LPARAM lParam) |
| { |
| WND *wndPtr; |
| int result; |
| |
| |
| while (hwnd) { |
| char *ptr; |
| if ( !(wndPtr=WIN_FindWndPtr(hwnd)) ) { |
| return 0; |
| } |
| #ifdef DEBUG_ENUM |
| if (XFetchName(display, wndPtr->window, &ptr) && ptr) |
| printf("EnumChild: found a child window (%s)\n", ptr); |
| else |
| printf("EnumChild: nameless child\n"); |
| |
| if (!(wndPtr->dwStyle & WS_CHILD)) { |
| printf("this is not a child window! What is it doing here?\n"); |
| return 0; |
| } |
| #endif |
| if (!CallBack16(wndenumprc, 2, lParam, (int) hwnd)) { |
| return 0; |
| } |
| if (!WIN_EnumChildWin(wndPtr->hwndChild, wndenumprc, lParam)) { |
| return 0; |
| } |
| hwnd=wndPtr->hwndNext; |
| } |
| return 1; |
| } |
| |
| /******************************************************************* |
| * EnumChildWindows (USER.55) |
| * |
| * o gets the first child of hwnd |
| * |
| * o calls WIN_EnumChildWin to do a recursive decent of child windows |
| */ |
| BOOL EnumChildWindows(HWND hwnd, FARPROC wndenumprc, LPARAM lParam) |
| { |
| WND *wndPtr; |
| |
| #ifdef DEBUG_ENUM |
| printf("EnumChildWindows\n"); |
| #endif |
| |
| if (hwnd == 0) return 0; |
| if (!(wndPtr = WIN_FindWndPtr(hwnd))) return 0; |
| hwnd = wndPtr->hwndChild; |
| return WIN_EnumChildWin(hwnd, wndenumprc, lParam); |
| } |
| |