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/*
* Window related functions
*
* Copyright 1993 Alexandre Julliard
*/
static char Copyright[] = "Copyright Alexandre Julliard, 1993";
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "options.h"
#include "class.h"
#include "win.h"
#include "user.h"
#include "dce.h"
#include "sysmetrics.h"
#include "scroll.h"
#include "icon.h"
extern Colormap COLOR_WinColormap;
extern void EVENT_RegisterWindow( Window w, HWND hwnd ); /* event.c */
extern void CURSOR_SetWinCursor( HWND hwnd, HCURSOR hcursor ); /* cursor.c */
extern void WINPOS_ChangeActiveWindow( HWND hwnd, BOOL mouseMsg ); /*winpos.c*/
extern LONG WINPOS_SendNCCalcSize( HWND hwnd, BOOL calcValidRect,
RECT *newWindowRect, RECT *oldWindowRect,
RECT *oldClientRect, WINDOWPOS *winpos,
RECT *newClientRect ); /* winpos.c */
extern HMENU CopySysMenu(); /* menu.c */
extern LONG MDIClientWndProc(HWND hwnd, WORD message,
WORD wParam, LONG lParam); /* mdi.c */
static HWND hwndDesktop = 0;
static HWND hWndSysModal = 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 *parentPtr, *wndPtr;
if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return FALSE;
if (!(parentPtr = WIN_FindWndPtr( wndPtr->hwndParent ))) return FALSE;
curWndPtr = &parentPtr->hwndChild;
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, *parentPtr;
if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return FALSE;
if (!(parentPtr = WIN_FindWndPtr( wndPtr->hwndParent ))) return FALSE;
if ((hwndInsertAfter == HWND_TOP) || (hwndInsertAfter == HWND_BOTTOM))
{
hwndPtr = &parentPtr->hwndChild; /* Point to first sibling hwnd */
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;
/* Note: the desktop window never gets WM_PAINT messages */
if (!hwnd) hwnd = GetTopWindow( hwndDesktop );
for ( ; hwnd != 0; hwnd = wndPtr->hwndNext )
{
if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return 0;
if (wndPtr->hrgnUpdate || (wndPtr->flags & WIN_INTERNAL_PAINT))
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.
*/
void WIN_SendParentNotify( HWND hwnd, WORD event, LONG lParam )
{
HWND current = GetParent( hwnd );
WND *wndPtr = WIN_FindWndPtr( hwnd );
if (!wndPtr || (wndPtr->dwExStyle & WS_EX_NOPARENTNOTIFY)) return;
while (current)
{
SendMessage( current, WM_PARENTNOTIFY, event, lParam );
current = GetParent( current );
}
}
/***********************************************************************
* WIN_CreateDesktopWindow
*
* Create the desktop window.
*/
BOOL WIN_CreateDesktopWindow()
{
WND *wndPtr;
HCLASS hclass;
CLASS *classPtr;
if (!(hclass = CLASS_FindClassByName( DESKTOP_CLASS_NAME, &classPtr )))
return FALSE;
hwndDesktop = USER_HEAP_ALLOC( GMEM_MOVEABLE,
sizeof(WND)+classPtr->wc.cbWndExtra );
if (!hwndDesktop) return FALSE;
wndPtr = (WND *) USER_HEAP_ADDR( hwndDesktop );
wndPtr->hwndNext = 0;
wndPtr->hwndChild = 0;
wndPtr->dwMagic = WND_MAGIC;
wndPtr->hwndParent = 0;
wndPtr->hwndOwner = 0;
wndPtr->hClass = hclass;
wndPtr->hInstance = 0;
wndPtr->rectWindow.left = 0;
wndPtr->rectWindow.top = 0;
wndPtr->rectWindow.right = SYSMETRICS_CXSCREEN;
wndPtr->rectWindow.bottom = SYSMETRICS_CYSCREEN;
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 = 0; /* Desktop does not belong to a task */
wndPtr->hrgnUpdate = 0;
wndPtr->hwndLastActive = 0;
wndPtr->lpfnWndProc = classPtr->wc.lpfnWndProc;
wndPtr->dwStyle = WS_VISIBLE | WS_CLIPCHILDREN | WS_CLIPSIBLINGS;
wndPtr->dwExStyle = 0;
wndPtr->hdce = 0;
wndPtr->VScroll = NULL;
wndPtr->HScroll = NULL;
wndPtr->scroll_flags = 0;
wndPtr->wIDmenu = 0;
wndPtr->hText = 0;
wndPtr->flags = 0;
wndPtr->window = rootWindow;
wndPtr->hSysMenu = 0;
wndPtr->hProp = 0;
wndPtr->hTask = 0;
/* Send dummy WM_NCCREATE message */
SendMessage( hwndDesktop, WM_NCCREATE, 0, 0 );
EVENT_RegisterWindow( wndPtr->window, hwndDesktop );
RedrawWindow( hwndDesktop, NULL, 0,
RDW_INVALIDATE | RDW_ERASE | RDW_ERASENOW );
return TRUE;
}
/***********************************************************************
* 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, icon_attr;
int iconWidth, iconHeight;
#ifdef DEBUG_WIN
printf( "CreateWindowEx: %04X '%s' '%s' %04X %d,%d %dx%d %04X %04X %04X %08X\n",
exStyle, className, windowName, style, x, y, width, height,
parent, menu, instance, data);
#endif
/* 'soundrec.exe' has negative position !
Why ? For now, here a patch : */
if (x < 0) x = 0;
if (y < 0) y = 0;
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 */
if (!(parentPtr = WIN_FindWndPtr( 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->window = 0;
wndPtr->dwMagic = WND_MAGIC;
wndPtr->hwndParent = (style & WS_CHILD) ? parent : hwndDesktop;
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->hwndPrevActive = 0;
wndPtr->hwndLastActive = 0;
wndPtr->lpfnWndProc = classPtr->wc.lpfnWndProc;
wndPtr->dwStyle = style;
wndPtr->dwExStyle = exStyle;
wndPtr->wIDmenu = 0;
wndPtr->hText = 0;
wndPtr->flags = 0;
wndPtr->VScroll = NULL;
wndPtr->HScroll = NULL;
wndPtr->scroll_flags = 0;
wndPtr->hSysMenu = 0;
wndPtr->hProp = 0;
wndPtr->hTask = 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 | EnterWindowMask;
win_attr.override_redirect = (rootWindow == DefaultRootWindow(display));
win_attr.colormap = COLOR_WinColormap;
if (!(style & WS_CHILD))
{
parentPtr = WIN_FindWndPtr( hwndDesktop );
/* Only select focus events on top-level override-redirect windows */
if (win_attr.override_redirect) win_attr.event_mask |= FocusChangeMask;
}
if (Options.nobackingstore)
win_attr.backing_store = NotUseful;
else
win_attr.backing_store = Always;
win_attr.save_under = ((classPtr->wc.style & CS_SAVEBITS) != 0);
wndPtr->window = XCreateWindow( display, parentPtr->window,
x + parentPtr->rectClient.left - parentPtr->rectWindow.left,
y + parentPtr->rectClient.top - parentPtr->rectWindow.top,
width, height, 0,
CopyFromParent, InputOutput, CopyFromParent,
CWEventMask | CWOverrideRedirect | CWColormap |
CWSaveUnder | CWBackingStore, &win_attr );
XStoreName( display, wndPtr->window, windowName );
/* create icon window */
icon_attr.override_redirect = rootWindow==DefaultRootWindow(display);
icon_attr.background_pixel = WhitePixelOfScreen(screen);
icon_attr.event_mask = ExposureMask | KeyPressMask |
ButtonPressMask | ButtonReleaseMask;
wndPtr->hIcon = classPtr->wc.hIcon;
if (wndPtr->hIcon != (HICON)NULL) {
ICONALLOC *lpico;
lpico = (ICONALLOC *)GlobalLock(wndPtr->hIcon);
printf("icon is %d x %d\n",
(int)lpico->descriptor.Width,
(int)lpico->descriptor.Height);
iconWidth = (int)lpico->descriptor.Width;
iconHeight = (int)lpico->descriptor.Height;
} else {
printf("icon was NULL\n");
iconWidth = 64;
iconHeight = 64;
}
wndPtr->icon = XCreateWindow(display, parentPtr->window,
10, 10, 100, iconHeight+20,
0, CopyFromParent,
InputOutput, CopyFromParent,
CWBorderPixel | CWEventMask | CWOverrideRedirect,
&icon_attr);
if (style & WS_MINIMIZE)
{
style &= ~WS_MINIMIZE;
}
#ifdef DEBUG_MENU
printf("CreateWindowEx // menu=%04X instance=%04X classmenu=%08X !\n",
menu, instance, classPtr->wc.lpszMenuName);
#endif
if ((style & WS_CAPTION) && (style & WS_CHILD) == 0) {
if (menu != 0)
SetMenu(hwnd, menu);
else {
if (classPtr->wc.lpszMenuName != NULL)
SetMenu(hwnd, LoadMenu(instance, classPtr->wc.lpszMenuName));
}
}
else
wndPtr->wIDmenu = menu;
/* 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
{
WINPOS_SendNCCalcSize( hwnd, FALSE, &wndPtr->rectWindow,
NULL, NULL, NULL, &wndPtr->rectClient );
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 a copy of SysMenu */
if (style & WS_SYSMENU) wndPtr->hSysMenu = CopySysMenu();
/* Register window in current task windows list */
AddWindowToTask(GetCurrentTask(), hwnd);
/* Set window cursor */
if (classPtr->wc.hCursor) CURSOR_SetWinCursor( hwnd, classPtr->wc.hCursor);
else CURSOR_SetWinCursor( hwnd, LoadCursor( 0, IDC_ARROW ));
EVENT_RegisterWindow( wndPtr->window, hwnd );
EVENT_RegisterWindow( wndPtr->icon, hwnd );
WIN_SendParentNotify( hwnd, WM_CREATE, MAKELONG( hwnd, wndPtr->wIDmenu ) );
if (style & WS_VISIBLE) ShowWindow( hwnd, SW_SHOW );
#ifdef DEBUG_WIN
printf( "CreateWindowEx: return %04X \n", hwnd);
#endif
return hwnd;
}
/***********************************************************************
* DestroyWindow (USER.53)
*/
BOOL DestroyWindow( HWND hwnd )
{
WND * wndPtr;
CLASS * classPtr;
/* Initialisation */
if (hwnd == hwndDesktop) return FALSE; /* Can't destroy desktop */
if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return FALSE;
if (!(classPtr = CLASS_FindClassPtr( wndPtr->hClass ))) return FALSE;
/* Hide the window */
if (wndPtr->dwStyle & WS_VISIBLE)
SetWindowPos( hwnd, 0, 0, 0, 0, 0, SWP_HIDEWINDOW | SWP_NOACTIVATE |
SWP_NOZORDER | SWP_NOMOVE | SWP_NOSIZE );
if ((hwnd == GetCapture()) || IsChild( hwnd, GetCapture() ))
ReleaseCapture();
WIN_SendParentNotify( hwnd, WM_DESTROY, MAKELONG(hwnd, wndPtr->wIDmenu) );
/* Send destroy messages and destroy children */
SendMessage( hwnd, WM_DESTROY, 0, 0 );
while (wndPtr->hwndChild) /* The child removes itself from the list */
DestroyWindow( wndPtr->hwndChild );
SendMessage( hwnd, WM_NCDESTROY, 0, 0 );
/* Remove the window from current task windows list */
RemoveWindowFromTask(GetCurrentTask(), hwnd);
/* 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 );
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)
{
HCLASS hclass;
CLASS *classPtr;
HWND hwnd;
if (ClassMatch)
{
hclass = CLASS_FindClassByName( ClassMatch, &classPtr );
if (!hclass) return 0;
}
else hclass = 0;
hwnd = GetTopWindow( hwndDesktop );
while(hwnd)
{
WND *wndPtr = WIN_FindWndPtr( hwnd );
if (!hclass || (wndPtr->hClass == hclass))
{
/* Found matching class */
if (!TitleMatch) return hwnd;
if (wndPtr->hText)
{
char *textPtr = (char *) USER_HEAP_ADDR( wndPtr->hText );
if (!strcmp( textPtr, TitleMatch )) return hwnd;
}
}
hwnd = wndPtr->hwndNext;
}
return 0;
}
/**********************************************************************
* GetDesktopWindow (USER.286)
* GetDeskTopHwnd (USER.278)
*/
HWND GetDesktopWindow(void)
{
return hwndDesktop;
}
/*******************************************************************
* EnableWindow (USER.34)
*/
BOOL EnableWindow( HWND hwnd, BOOL enable )
{
WND *wndPtr;
if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return FALSE;
if (enable && (wndPtr->dwStyle & WS_DISABLED))
{
/* Enable window */
wndPtr->dwStyle &= ~WS_DISABLED;
SendMessage( hwnd, WM_ENABLE, TRUE, 0 );
return TRUE;
}
else if (!enable && !(wndPtr->dwStyle & WS_DISABLED))
{
/* Disable window */
wndPtr->dwStyle |= WS_DISABLED;
if ((hwnd == GetFocus()) || IsChild( hwnd, GetFocus() ))
SetFocus( 0 ); /* A disabled window can't have the focus */
if ((hwnd == GetCapture()) || IsChild( hwnd, GetCapture() ))
ReleaseCapture(); /* A disabled window can't capture the mouse */
SendMessage( hwnd, WM_ENABLE, FALSE, 0 );
return FALSE;
}
return ((wndPtr->dwStyle & WS_DISABLED) != 0);
}
/***********************************************************************
* IsWindowEnabled (USER.35)
*/
BOOL IsWindowEnabled(HWND hWnd)
{
WND * wndPtr;
if (!(wndPtr = WIN_FindWndPtr(hWnd))) return FALSE;
return !(wndPtr->dwStyle & WS_DISABLED);
}
/**********************************************************************
* 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;
}
/**********************************************************************
* 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;
break;
case GWL_EXSTYLE: ptr = &wndPtr->dwExStyle;
break;
case GWL_WNDPROC: ptr = (LONG *)(&wndPtr->lpfnWndProc);
break;
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 || !(wndPtr->dwStyle & WS_CHILD)) return 0;
return wndPtr->hwndParent;
}
/*******************************************************************
* IsChild (USER.48)
*/
BOOL IsChild( HWND parent, HWND child )
{
WND * wndPtr = WIN_FindWndPtr( child );
while (wndPtr && (wndPtr->dwStyle & WS_CHILD))
{
if (wndPtr->hwndParent == parent) return TRUE;
wndPtr = WIN_FindWndPtr( wndPtr->hwndParent );
}
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 0;
case GW_HWNDLAST:
if (!wndPtr->hwndParent) return 0; /* Desktop window */
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 return 0; /* Desktop window */
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
*
*/
BOOL EnumWindows(FARPROC wndenumprc, LPARAM lParam)
{
HWND hwnd = GetTopWindow( GetDesktopWindow() );
WND *wndPtr;
int result;
#ifdef DEBUG_ENUM
printf("EnumWindows\n");
#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
#ifdef WINELIB
(*wndenumprc)(hwnd, lParam);
#else
result = CallBack16(wndenumprc, 2, lParam, (int) hwnd);
#endif
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
#ifdef WINELIB
if (!(*wndenumprc, 2, lParam, (int) hwnd)) {
#else
if (!CallBack16(wndenumprc, 2, lParam, (int) hwnd)) {
#endif
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);
}
/*******************************************************************
* AnyPopup [USER.52]
*/
BOOL AnyPopup()
{
printf("EMPTY STUB !! AnyPopup !\n");
return FALSE;
}
/*******************************************************************
* FlashWindow [USER.105]
*/
BOOL FlashWindow(HWND hWnd, BOOL bInvert)
{
printf("EMPTY STUB !! FlashWindow !\n");
return FALSE;
}
/*******************************************************************
* SetSysModalWindow [USER.188]
*/
HWND SetSysModalWindow(HWND hWnd)
{
HWND hWndOldModal = hWndSysModal;
hWndSysModal = hWnd;
printf("EMPTY STUB !! SetSysModalWindow(%04X) !\n", hWnd);
return hWndOldModal;
}
/*******************************************************************
* GetSysModalWindow [USER.189]
*/
HWND GetSysModalWindow(void)
{
return hWndSysModal;
}
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