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Sweden-Number/windows/class.c

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/*
* Window classes functions
*
* Copyright 1993, 1996 Alexandre Julliard
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "class.h"
#include "heap.h"
#include "win.h"
#include "dce.h"
#include "atom.h"
#include "ldt.h"
#include "toolhelp.h"
#include "winproc.h"
#include "stddebug.h"
#include "debug.h"
static CLASS *firstClass = NULL;
/***********************************************************************
* CLASS_DumpClass
*
* Dump the content of a class structure to stderr.
*/
void CLASS_DumpClass( CLASS *ptr )
{
char className[80];
int i;
if (ptr->magic != CLASS_MAGIC)
{
fprintf( stderr, "%p is not a class\n", ptr );
return;
}
GlobalGetAtomName32A( ptr->atomName, className, sizeof(className) );
fprintf( stderr, "Class %p:\n", ptr );
fprintf( stderr,
"next=%p name=%04x '%s' style=%08x wndProc=%08x\n"
"inst=%04x dce=%08x icon=%04x cursor=%04x bkgnd=%04x\n"
"clsExtra=%d winExtra=%d #windows=%d\n",
ptr->next, ptr->atomName, className, ptr->style,
(UINT32)ptr->winproc, ptr->hInstance, (UINT32)ptr->dce,
ptr->hIcon, ptr->hCursor, ptr->hbrBackground,
ptr->cbClsExtra, ptr->cbWndExtra, ptr->cWindows );
if (ptr->cbClsExtra)
{
fprintf( stderr, "extra bytes:" );
for (i = 0; i < ptr->cbClsExtra; i++)
fprintf( stderr, " %02x", *((BYTE *)ptr->wExtra+i) );
fprintf( stderr, "\n" );
}
fprintf( stderr, "\n" );
}
/***********************************************************************
* CLASS_WalkClasses
*
* Walk the class list and print each class on stderr.
*/
void CLASS_WalkClasses(void)
{
CLASS *ptr;
char className[80];
fprintf( stderr, " Class Name Style WndProc\n" );
for (ptr = firstClass; ptr; ptr = ptr->next)
{
GlobalGetAtomName32A( ptr->atomName, className, sizeof(className) );
fprintf( stderr, "%08x %-20.20s %08x %08x\n", (UINT32)ptr, className,
ptr->style, (UINT32)ptr->winproc );
}
fprintf( stderr, "\n" );
}
/***********************************************************************
* CLASS_GetMenuNameA
*
* Get the menu name as a ASCII string.
*/
static LPSTR CLASS_GetMenuNameA( CLASS *classPtr )
{
if (!classPtr->menuNameA && classPtr->menuNameW)
{
/* We need to copy the Unicode string */
classPtr->menuNameA = SEGPTR_STRDUP_WtoA( classPtr->menuNameW );
}
return classPtr->menuNameA;
}
/***********************************************************************
* CLASS_GetMenuNameW
*
* Get the menu name as a Unicode string.
*/
static LPWSTR CLASS_GetMenuNameW( CLASS *classPtr )
{
if (!classPtr->menuNameW && classPtr->menuNameA)
{
if (!HIWORD(classPtr->menuNameA))
return (LPWSTR)classPtr->menuNameA;
/* Now we need to copy the ASCII string */
classPtr->menuNameW = HEAP_strdupAtoW( SystemHeap, 0,
classPtr->menuNameA );
}
return classPtr->menuNameW;
}
/***********************************************************************
* CLASS_SetMenuNameA
*
* Set the menu name in a class structure by copying the string.
*/
static void CLASS_SetMenuNameA( CLASS *classPtr, LPCSTR name )
{
if (HIWORD(classPtr->menuNameA)) SEGPTR_FREE( classPtr->menuNameA );
if (classPtr->menuNameW) HeapFree( SystemHeap, 0, classPtr->menuNameW );
classPtr->menuNameA = SEGPTR_STRDUP( name );
classPtr->menuNameW = 0;
}
/***********************************************************************
* CLASS_SetMenuNameW
*
* Set the menu name in a class structure by copying the string.
*/
static void CLASS_SetMenuNameW( CLASS *classPtr, LPCWSTR name )
{
if (!HIWORD(name))
{
CLASS_SetMenuNameA( classPtr, (LPCSTR)name );
return;
}
if (HIWORD(classPtr->menuNameA)) SEGPTR_FREE( classPtr->menuNameA );
if (classPtr->menuNameW) HeapFree( SystemHeap, 0, classPtr->menuNameW );
if ((classPtr->menuNameW = HeapAlloc( SystemHeap, 0,
(lstrlen32W(name)+1)*sizeof(WCHAR) )))
lstrcpy32W( classPtr->menuNameW, name );
classPtr->menuNameA = 0;
}
/***********************************************************************
* CLASS_FreeClass
*
* Free a class structure.
*/
static BOOL CLASS_FreeClass( CLASS *classPtr )
{
CLASS **ppClass;
/* Check if we can remove this class */
if (classPtr->cWindows > 0) return FALSE;
/* Remove the class from the linked list */
for (ppClass = &firstClass; *ppClass; ppClass = &(*ppClass)->next)
if (*ppClass == classPtr) break;
if (!*ppClass)
{
fprintf(stderr, "ERROR: Class list corrupted\n" );
return FALSE;
}
*ppClass = classPtr->next;
/* Delete the class */
if (classPtr->dce) DCE_FreeDCE( classPtr->dce );
if (classPtr->hbrBackground) DeleteObject32( classPtr->hbrBackground );
GlobalDeleteAtom( classPtr->atomName );
CLASS_SetMenuNameA( classPtr, NULL );
WINPROC_FreeProc( classPtr->winproc );
HeapFree( SystemHeap, 0, classPtr );
return TRUE;
}
/***********************************************************************
* CLASS_FreeModuleClasses
*/
void CLASS_FreeModuleClasses( HMODULE16 hModule )
{
CLASS *ptr, *next;
for (ptr = firstClass; ptr; ptr = next)
{
next = ptr->next;
if (ptr->hInstance == hModule) CLASS_FreeClass( ptr );
}
}
/***********************************************************************
* CLASS_FindClassByAtom
*
* Return a pointer to the class.
*/
CLASS *CLASS_FindClassByAtom( ATOM atom, HINSTANCE16 hinstance )
{
CLASS * class;
if (hinstance != 0xffff) hinstance = GetExePtr(hinstance);
/* First search task-specific classes */
for (class = firstClass; (class); class = class->next)
{
if (class->style & CS_GLOBALCLASS) continue;
if ((class->atomName == atom) &&
((hinstance == 0xffff) ||
(hinstance == class->hInstance))) return class;
}
/* Then search global classes */
for (class = firstClass; (class); class = class->next)
{
if (!(class->style & CS_GLOBALCLASS)) continue;
if (class->atomName == atom) return class;
}
return 0;
}
/***********************************************************************
* CLASS_RegisterClass
*
* The real RegisterClass() functionality.
*/
static CLASS *CLASS_RegisterClass( ATOM atom, HINSTANCE32 hInstance,
DWORD style, INT32 classExtra,
INT32 winExtra, WNDPROC16 wndProc,
WINDOWPROCTYPE wndProcType )
{
CLASS *classPtr;
/* Check if a class with this name already exists */
classPtr = CLASS_FindClassByAtom( atom, hInstance );
if (classPtr)
{
/* Class can be created only if it is local and */
/* if the class with the same name is global. */
if (style & CS_GLOBALCLASS) return NULL;
if (!(classPtr->style & CS_GLOBALCLASS)) return NULL;
}
/* Fix the extra bytes value */
if (classExtra < 0) classExtra = 0;
else if (classExtra > 40) /* Extra bytes are limited to 40 in Win32 */
fprintf(stderr, "Warning: class extra bytes %d is > 40\n", classExtra);
if (winExtra < 0) winExtra = 0;
else if (winExtra > 40) /* Extra bytes are limited to 40 in Win32 */
fprintf( stderr, "Warning: win extra bytes %d is > 40\n", winExtra );
/* Create the class */
classPtr = (CLASS *)HeapAlloc( SystemHeap, 0, sizeof(CLASS) +
classExtra - sizeof(classPtr->wExtra) );
if (!classPtr) return NULL;
classPtr->next = firstClass;
classPtr->magic = CLASS_MAGIC;
classPtr->cWindows = 0;
classPtr->style = style;
classPtr->winproc = (HWINDOWPROC)0;
classPtr->cbWndExtra = winExtra;
classPtr->cbClsExtra = classExtra;
classPtr->hInstance = hInstance;
classPtr->atomName = atom;
classPtr->menuNameA = 0;
classPtr->menuNameW = 0;
classPtr->dce = (style & CS_CLASSDC) ?
DCE_AllocDCE( 0, DCE_CLASS_DC ) : NULL;
WINPROC_SetProc( &classPtr->winproc, wndProc, wndProcType );
/* Other values must be set by caller */
if (classExtra) memset( classPtr->wExtra, 0, classExtra );
firstClass = classPtr;
return classPtr;
}
/***********************************************************************
* RegisterClass16 (USER.57)
*/
ATOM RegisterClass16( const WNDCLASS16 *wc )
{
ATOM atom;
CLASS *classPtr;
HINSTANCE32 hInstance = (HINSTANCE32)GetExePtr( wc->hInstance );
if (!(atom = GlobalAddAtom16( wc->lpszClassName ))) return 0;
if (!(classPtr = CLASS_RegisterClass( atom, hInstance, wc->style,
wc->cbClsExtra, wc->cbWndExtra,
wc->lpfnWndProc, WIN_PROC_16 )))
{
GlobalDeleteAtom( atom );
return 0;
}
dprintf_class( stddeb, "RegisterClass16: atom=%04x wndproc=%08lx hinst=%04x bg=%04x style=%08x clsExt=%d winExt=%d class=%p\n",
atom, (DWORD)wc->lpfnWndProc, hInstance,
wc->hbrBackground, wc->style, wc->cbClsExtra,
wc->cbWndExtra, classPtr );
classPtr->hIcon = wc->hIcon;
classPtr->hIconSm = 0;
classPtr->hCursor = wc->hCursor;
classPtr->hbrBackground = wc->hbrBackground;
CLASS_SetMenuNameA( classPtr, HIWORD(wc->lpszMenuName) ?
PTR_SEG_TO_LIN(wc->lpszMenuName) : (LPCSTR)wc->lpszMenuName );
return atom;
}
/***********************************************************************
* RegisterClass32A (USER32.426)
*/
ATOM RegisterClass32A( const WNDCLASS32A* wc )
{
ATOM atom;
CLASS *classPtr;
/* FIXME: this should not be necessary for Win32 */
HINSTANCE32 hInstance = (HINSTANCE32)GetExePtr( wc->hInstance );
if (!(atom = GlobalAddAtom32A( wc->lpszClassName ))) return 0;
if (!(classPtr = CLASS_RegisterClass( atom, hInstance, wc->style,
wc->cbClsExtra, wc->cbWndExtra,
(WNDPROC16)wc->lpfnWndProc,
WIN_PROC_32A )))
{
GlobalDeleteAtom( atom );
return 0;
}
dprintf_class( stddeb, "RegisterClass32A: atom=%04x wndproc=%08lx hinst=%04x bg=%04x style=%08x clsExt=%d winExt=%d class=%p\n",
atom, (DWORD)wc->lpfnWndProc, hInstance,
wc->hbrBackground, wc->style, wc->cbClsExtra,
wc->cbWndExtra, classPtr );
classPtr->hIcon = (HICON16)wc->hIcon;
classPtr->hIconSm = 0;
classPtr->hCursor = (HCURSOR16)wc->hCursor;
classPtr->hbrBackground = (HBRUSH16)wc->hbrBackground;
CLASS_SetMenuNameA( classPtr, wc->lpszMenuName );
return atom;
}
/***********************************************************************
* RegisterClass32W (USER32.429)
*/
ATOM RegisterClass32W( const WNDCLASS32W* wc )
{
ATOM atom;
CLASS *classPtr;
/* FIXME: this should not be necessary for Win32 */
HINSTANCE32 hInstance = (HINSTANCE32)GetExePtr( wc->hInstance );
if (!(atom = GlobalAddAtom32W( wc->lpszClassName ))) return 0;
if (!(classPtr = CLASS_RegisterClass( atom, hInstance, wc->style,
wc->cbClsExtra, wc->cbWndExtra,
(WNDPROC16)wc->lpfnWndProc,
WIN_PROC_32W )))
{
GlobalDeleteAtom( atom );
return 0;
}
dprintf_class( stddeb, "RegisterClass32W: atom=%04x wndproc=%08lx hinst=%04x bg=%04x style=%08x clsExt=%d winExt=%d class=%p\n",
atom, (DWORD)wc->lpfnWndProc, hInstance,
wc->hbrBackground, wc->style, wc->cbClsExtra,
wc->cbWndExtra, classPtr );
classPtr->hIcon = (HICON16)wc->hIcon;
classPtr->hIconSm = 0;
classPtr->hCursor = (HCURSOR16)wc->hCursor;
classPtr->hbrBackground = (HBRUSH16)wc->hbrBackground;
CLASS_SetMenuNameW( classPtr, wc->lpszMenuName );
return atom;
}
/***********************************************************************
* RegisterClassEx16 (USER.397)
*/
ATOM RegisterClassEx16( const WNDCLASSEX16 *wc )
{
ATOM atom;
CLASS *classPtr;
HINSTANCE32 hInstance = (HINSTANCE32)GetExePtr( wc->hInstance );
if (!(atom = GlobalAddAtom16( wc->lpszClassName ))) return 0;
if (!(classPtr = CLASS_RegisterClass( atom, hInstance, wc->style,
wc->cbClsExtra, wc->cbWndExtra,
wc->lpfnWndProc, WIN_PROC_16 )))
{
GlobalDeleteAtom( atom );
return 0;
}
dprintf_class( stddeb, "RegisterClassEx16: atom=%04x wndproc=%08lx hinst=%04x bg=%04x style=%08x clsExt=%d winExt=%d class=%p\n",
atom, (DWORD)wc->lpfnWndProc, hInstance,
wc->hbrBackground, wc->style, wc->cbClsExtra,
wc->cbWndExtra, classPtr );
classPtr->hIcon = wc->hIcon;
classPtr->hIconSm = wc->hIconSm;
classPtr->hCursor = wc->hCursor;
classPtr->hbrBackground = wc->hbrBackground;
CLASS_SetMenuNameA( classPtr, HIWORD(wc->lpszMenuName) ?
PTR_SEG_TO_LIN(wc->lpszMenuName) : (LPCSTR)wc->lpszMenuName );
return atom;
}
/***********************************************************************
* RegisterClassEx32A (USER32.427)
*/
ATOM RegisterClassEx32A( const WNDCLASSEX32A* wc )
{
ATOM atom;
CLASS *classPtr;
/* FIXME: this should not be necessary for Win32 */
HINSTANCE32 hInstance = (HINSTANCE32)GetExePtr( wc->hInstance );
if (!(atom = GlobalAddAtom32A( wc->lpszClassName ))) return 0;
if (!(classPtr = CLASS_RegisterClass( atom, hInstance, wc->style,
wc->cbClsExtra, wc->cbWndExtra,
(WNDPROC16)wc->lpfnWndProc,
WIN_PROC_32A )))
{
GlobalDeleteAtom( atom );
return 0;
}
dprintf_class( stddeb, "RegisterClassEx32A: atom=%04x wndproc=%08lx hinst=%04x bg=%04x style=%08x clsExt=%d winExt=%d class=%p\n",
atom, (DWORD)wc->lpfnWndProc, hInstance,
wc->hbrBackground, wc->style, wc->cbClsExtra,
wc->cbWndExtra, classPtr );
classPtr->hIcon = (HICON16)wc->hIcon;
classPtr->hIconSm = (HICON16)wc->hIconSm;
classPtr->hCursor = (HCURSOR16)wc->hCursor;
classPtr->hbrBackground = (HBRUSH16)wc->hbrBackground;
CLASS_SetMenuNameA( classPtr, wc->lpszMenuName );
return atom;
}
/***********************************************************************
* RegisterClassEx32W (USER32.428)
*/
ATOM RegisterClassEx32W( const WNDCLASSEX32W* wc )
{
ATOM atom;
CLASS *classPtr;
/* FIXME: this should not be necessary for Win32 */
HINSTANCE32 hInstance = (HINSTANCE32)GetExePtr( wc->hInstance );
if (!(atom = GlobalAddAtom32W( wc->lpszClassName ))) return 0;
if (!(classPtr = CLASS_RegisterClass( atom, hInstance, wc->style,
wc->cbClsExtra, wc->cbWndExtra,
(WNDPROC16)wc->lpfnWndProc,
WIN_PROC_32W )))
{
GlobalDeleteAtom( atom );
return 0;
}
dprintf_class( stddeb, "RegisterClassEx32W: atom=%04x wndproc=%08lx hinst=%04x bg=%04x style=%08x clsExt=%d winExt=%d class=%p\n",
atom, (DWORD)wc->lpfnWndProc, hInstance,
wc->hbrBackground, wc->style, wc->cbClsExtra,
wc->cbWndExtra, classPtr );
classPtr->hIcon = (HICON16)wc->hIcon;
classPtr->hIconSm = (HICON16)wc->hIconSm;
classPtr->hCursor = (HCURSOR16)wc->hCursor;
classPtr->hbrBackground = (HBRUSH16)wc->hbrBackground;
CLASS_SetMenuNameW( classPtr, wc->lpszMenuName );
return atom;
}
/***********************************************************************
* UnregisterClass16 (USER.403)
*/
BOOL16 UnregisterClass16( SEGPTR className, HINSTANCE16 hInstance )
{
CLASS *classPtr;
ATOM atom;
hInstance = GetExePtr( hInstance );
if (!(atom = GlobalFindAtom16( className ))) return FALSE;
if (!(classPtr = CLASS_FindClassByAtom( atom, hInstance )) ||
(classPtr->hInstance != hInstance)) return FALSE;
return CLASS_FreeClass( classPtr );
}
/***********************************************************************
* UnregisterClass32A (USER32.562)
*/
BOOL32 UnregisterClass32A( LPCSTR className, HINSTANCE32 hInstance )
{
CLASS *classPtr;
ATOM atom;
hInstance = GetExePtr( hInstance ); /* FIXME: not needed in Win32 */
if (!(atom = GlobalFindAtom32A( className ))) return FALSE;
if (!(classPtr = CLASS_FindClassByAtom( atom, hInstance )) ||
(classPtr->hInstance != hInstance)) return FALSE;
return CLASS_FreeClass( classPtr );
}
/***********************************************************************
* UnregisterClass32W (USER32.563)
*/
BOOL32 UnregisterClass32W( LPCWSTR className, HINSTANCE32 hInstance )
{
CLASS *classPtr;
ATOM atom;
hInstance = GetExePtr( hInstance ); /* FIXME: not needed in Win32 */
if (!(atom = GlobalFindAtom32W( className ))) return FALSE;
if (!(classPtr = CLASS_FindClassByAtom( atom, hInstance )) ||
(classPtr->hInstance != hInstance)) return FALSE;
return CLASS_FreeClass( classPtr );
}
/***********************************************************************
* GetClassWord (USER.129) (USER32.218)
*/
WORD GetClassWord( HWND32 hwnd, INT32 offset )
{
WND * wndPtr;
if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return 0;
if (offset >= 0)
{
if (offset <= wndPtr->class->cbClsExtra - sizeof(WORD))
return GET_WORD(((char *)wndPtr->class->wExtra) + offset);
}
else switch(offset)
{
case GCW_HBRBACKGROUND: return wndPtr->class->hbrBackground;
case GCW_HCURSOR: return wndPtr->class->hCursor;
case GCW_HICON: return wndPtr->class->hIcon;
case GCW_HICONSM: return wndPtr->class->hIconSm;
case GCW_ATOM: return wndPtr->class->atomName;
case GCW_STYLE:
case GCW_CBWNDEXTRA:
case GCW_CBCLSEXTRA:
case GCW_HMODULE:
return (WORD)GetClassLong32A( hwnd, offset );
}
fprintf(stderr, "Warning: invalid offset %d for GetClassWord()\n", offset);
return 0;
}
/***********************************************************************
* GetClassLong16 (USER.131)
*/
LONG GetClassLong16( HWND16 hwnd, INT16 offset )
{
WND *wndPtr;
LONG ret;
switch( offset )
{
case GCL_WNDPROC:
if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return 0;
return (LONG)WINPROC_GetProc( wndPtr->class->winproc, WIN_PROC_16 );
case GCL_MENUNAME:
ret = GetClassLong32A( hwnd, offset );
return (LONG)SEGPTR_GET( (void *)ret );
default:
return GetClassLong32A( hwnd, offset );
}
}
/***********************************************************************
* GetClassLong32A (USER32.214)
*/
LONG GetClassLong32A( HWND32 hwnd, INT32 offset )
{
WND * wndPtr;
if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return 0;
if (offset >= 0)
{
if (offset <= wndPtr->class->cbClsExtra - sizeof(LONG))
return GET_DWORD(((char *)wndPtr->class->wExtra) + offset);
}
switch(offset)
{
case GCL_STYLE: return (LONG)wndPtr->class->style;
case GCL_CBWNDEXTRA: return (LONG)wndPtr->class->cbWndExtra;
case GCL_CBCLSEXTRA: return (LONG)wndPtr->class->cbClsExtra;
case GCL_HMODULE: return (LONG)wndPtr->class->hInstance;
case GCL_WNDPROC:
return (LONG)WINPROC_GetProc(wndPtr->class->winproc, WIN_PROC_32A);
case GCL_MENUNAME:
return (LONG)CLASS_GetMenuNameA( wndPtr->class );
case GCL_HBRBACKGROUND:
case GCL_HCURSOR:
case GCL_HICON:
case GCL_HICONSM:
return GetClassWord( hwnd, offset );
}
fprintf(stderr, "Warning: invalid offset %d for GetClassLong()\n", offset);
return 0;
}
/***********************************************************************
* GetClassLong32W (USER32.215)
*/
LONG GetClassLong32W( HWND32 hwnd, INT32 offset )
{
WND * wndPtr;
switch(offset)
{
case GCL_WNDPROC:
if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return 0;
return (LONG)WINPROC_GetProc( wndPtr->class->winproc, WIN_PROC_32W );
case GCL_MENUNAME:
if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return 0;
return (LONG)CLASS_GetMenuNameW( wndPtr->class );
default:
return GetClassLong32A( hwnd, offset );
}
}
/***********************************************************************
* SetClassWord (USER.130) (USER32.468)
*/
WORD SetClassWord( HWND32 hwnd, INT32 offset, WORD newval )
{
WND * wndPtr;
WORD retval = 0;
void *ptr;
if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return 0;
if (offset >= 0)
{
if (offset + sizeof(WORD) <= wndPtr->class->cbClsExtra)
ptr = ((char *)wndPtr->class->wExtra) + offset;
else
{
fprintf( stderr, "Warning: invalid offset %d for SetClassWord()\n",
offset );
return 0;
}
}
else switch(offset)
{
case GCW_STYLE:
case GCW_CBWNDEXTRA:
case GCW_CBCLSEXTRA:
case GCW_HMODULE:
return (WORD)SetClassLong32A( hwnd, offset, (LONG)newval );
case GCW_HBRBACKGROUND: ptr = &wndPtr->class->hbrBackground; break;
case GCW_HCURSOR: ptr = &wndPtr->class->hCursor; break;
case GCW_HICON: ptr = &wndPtr->class->hIcon; break;
case GCW_HICONSM: ptr = &wndPtr->class->hIconSm; break;
case GCW_ATOM: ptr = &wndPtr->class->atomName; break;
default:
fprintf( stderr, "Warning: invalid offset %d for SetClassWord()\n",
offset);
return 0;
}
retval = GET_WORD(ptr);
PUT_WORD( ptr, newval );
return retval;
}
/***********************************************************************
* SetClassLong16 (USER.132)
*/
LONG SetClassLong16( HWND16 hwnd, INT16 offset, LONG newval )
{
WND *wndPtr;
LONG retval;
switch(offset)
{
case GCL_WNDPROC:
if (!(wndPtr = WIN_FindWndPtr(hwnd))) return 0;
retval = (LONG)WINPROC_GetProc( wndPtr->class->winproc, WIN_PROC_16 );
WINPROC_SetProc( &wndPtr->class->winproc, (WNDPROC16)newval,
WIN_PROC_16 );
return retval;
case GCL_MENUNAME:
return SetClassLong32A( hwnd, offset, (LONG)PTR_SEG_TO_LIN(newval) );
default:
return SetClassLong32A( hwnd, offset, newval );
}
}
/***********************************************************************
* SetClassLong32A (USER32.466)
*/
LONG SetClassLong32A( HWND32 hwnd, INT32 offset, LONG newval )
{
WND * wndPtr;
LONG retval = 0;
void *ptr;
if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return 0;
if (offset >= 0)
{
if (offset + sizeof(LONG) <= wndPtr->class->cbClsExtra)
ptr = ((char *)wndPtr->class->wExtra) + offset;
else
{
fprintf( stderr, "Warning: invalid offset %d for SetClassLong()\n",
offset );
return 0;
}
}
else switch(offset)
{
case GCL_MENUNAME:
CLASS_SetMenuNameA( wndPtr->class, (LPCSTR)newval );
return 0; /* Old value is now meaningless anyway */
case GCL_WNDPROC:
retval = (LONG)WINPROC_GetProc( wndPtr->class->winproc,
WIN_PROC_32A );
WINPROC_SetProc( &wndPtr->class->winproc, (WNDPROC16)newval,
WIN_PROC_32A );
return retval;
case GCL_HBRBACKGROUND:
case GCL_HCURSOR:
case GCL_HICON:
case GCL_HICONSM:
return SetClassWord( hwnd, offset, (WORD)newval );
case GCL_STYLE: ptr = &wndPtr->class->style; break;
case GCL_CBWNDEXTRA: ptr = &wndPtr->class->cbWndExtra; break;
case GCL_CBCLSEXTRA: ptr = &wndPtr->class->cbClsExtra; break;
case GCL_HMODULE: ptr = &wndPtr->class->hInstance; break;
default:
fprintf( stderr, "Warning: invalid offset %d for SetClassLong()\n",
offset);
return 0;
}
retval = GET_DWORD(ptr);
PUT_DWORD( ptr, newval );
return retval;
}
/***********************************************************************
* SetClassLong32W (USER32.467)
*/
LONG SetClassLong32W( HWND32 hwnd, INT32 offset, LONG newval )
{
WND *wndPtr;
LONG retval;
switch(offset)
{
case GCL_WNDPROC:
if (!(wndPtr = WIN_FindWndPtr(hwnd))) return 0;
retval = (LONG)WINPROC_GetProc( wndPtr->class->winproc, WIN_PROC_32W );
WINPROC_SetProc( &wndPtr->class->winproc, (WNDPROC16)newval,
WIN_PROC_32W );
return retval;
case GCL_MENUNAME:
if (!(wndPtr = WIN_FindWndPtr(hwnd))) return 0;
CLASS_SetMenuNameW( wndPtr->class, (LPCWSTR)newval );
return 0; /* Old value is now meaningless anyway */
default:
return SetClassLong32A( hwnd, offset, newval );
}
}
/***********************************************************************
* GetClassName16 (USER.58)
*/
INT16 GetClassName16( HWND16 hwnd, LPSTR buffer, INT16 count )
{
WND *wndPtr;
if (!(wndPtr = WIN_FindWndPtr(hwnd))) return 0;
return GlobalGetAtomName16( wndPtr->class->atomName, buffer, count );
}
/***********************************************************************
* GetClassName32A (USER32.216)
*/
INT32 GetClassName32A( HWND32 hwnd, LPSTR buffer, INT32 count )
{
WND *wndPtr;
if (!(wndPtr = WIN_FindWndPtr(hwnd))) return 0;
return GlobalGetAtomName32A( wndPtr->class->atomName, buffer, count );
}
/***********************************************************************
* GetClassName32W (USER32.217)
*/
INT32 GetClassName32W( HWND32 hwnd, LPWSTR buffer, INT32 count )
{
WND *wndPtr;
if (!(wndPtr = WIN_FindWndPtr(hwnd))) return 0;
return GlobalGetAtomName32W( wndPtr->class->atomName, buffer, count );
}
/***********************************************************************
* GetClassInfo16 (USER.404)
*/
BOOL16 GetClassInfo16( HINSTANCE16 hInstance, SEGPTR name, WNDCLASS16 *wc )
{
ATOM atom;
CLASS *classPtr;
hInstance = GetExePtr( hInstance );
if (!(atom = GlobalFindAtom16( name )) ||
!(classPtr = CLASS_FindClassByAtom( atom, hInstance )) ||
(hInstance != classPtr->hInstance)) return FALSE;
wc->style = (UINT16)classPtr->style;
wc->lpfnWndProc = WINPROC_GetProc( classPtr->winproc, WIN_PROC_16 );
wc->cbClsExtra = (INT16)classPtr->cbClsExtra;
wc->cbWndExtra = (INT16)classPtr->cbWndExtra;
wc->hInstance = (HINSTANCE16)classPtr->hInstance;
wc->hIcon = classPtr->hIcon;
wc->hCursor = classPtr->hCursor;
wc->hbrBackground = classPtr->hbrBackground;
wc->lpszClassName = (SEGPTR)0;
wc->lpszMenuName = (SEGPTR)CLASS_GetMenuNameA( classPtr );
if (HIWORD(wc->lpszMenuName)) /* Make it a SEGPTR */
wc->lpszMenuName = SEGPTR_GET( (LPSTR)wc->lpszMenuName );
return TRUE;
}
/***********************************************************************
* GetClassInfo32A (USER32.210)
*/
BOOL32 GetClassInfo32A( HINSTANCE32 hInstance, LPCSTR name, WNDCLASS32A *wc )
{
ATOM atom;
CLASS *classPtr;
hInstance = GetExePtr( hInstance ); /* FIXME: not needed in Win32 */
if (!(atom = GlobalFindAtom32A( name )) ||
!(classPtr = CLASS_FindClassByAtom( atom, hInstance )) ||
(hInstance != classPtr->hInstance)) return FALSE;
wc->style = classPtr->style;
wc->lpfnWndProc = (WNDPROC32)WINPROC_GetProc( classPtr->winproc,
WIN_PROC_32A );
wc->cbClsExtra = classPtr->cbClsExtra;
wc->cbWndExtra = classPtr->cbWndExtra;
wc->hInstance = classPtr->hInstance;
wc->hIcon = (HICON32)classPtr->hIcon;
wc->hCursor = (HCURSOR32)classPtr->hCursor;
wc->hbrBackground = (HBRUSH32)classPtr->hbrBackground;
wc->lpszMenuName = CLASS_GetMenuNameA( classPtr );
wc->lpszClassName = NULL;
return TRUE;
}
/***********************************************************************
* GetClassInfo32W (USER32.213)
*/
BOOL32 GetClassInfo32W( HINSTANCE32 hInstance, LPCWSTR name, WNDCLASS32W *wc )
{
ATOM atom;
CLASS *classPtr;
hInstance = GetExePtr( hInstance ); /* FIXME: not needed in Win32 */
if (!(atom = GlobalFindAtom32W( name )) ||
!(classPtr = CLASS_FindClassByAtom( atom, hInstance )) ||
(hInstance != classPtr->hInstance)) return FALSE;
wc->style = classPtr->style;
wc->lpfnWndProc = (WNDPROC32)WINPROC_GetProc( classPtr->winproc,
WIN_PROC_32W );
wc->cbClsExtra = classPtr->cbClsExtra;
wc->cbWndExtra = classPtr->cbWndExtra;
wc->hInstance = classPtr->hInstance;
wc->hIcon = (HICON32)classPtr->hIcon;
wc->hCursor = (HCURSOR32)classPtr->hCursor;
wc->hbrBackground = (HBRUSH32)classPtr->hbrBackground;
wc->lpszMenuName = CLASS_GetMenuNameW( classPtr );
wc->lpszClassName = NULL;
return TRUE;
}
/***********************************************************************
* GetClassInfoEx16 (USER.398)
*
* FIXME: this is just a guess, I have no idea if GetClassInfoEx() is the
* same in Win16 as in Win32. --AJ
*/
BOOL16 GetClassInfoEx16( HINSTANCE16 hInstance, SEGPTR name, WNDCLASSEX16 *wc )
{
ATOM atom;
CLASS *classPtr;
hInstance = GetExePtr( hInstance );
if (!(atom = GlobalFindAtom16( name )) ||
!(classPtr = CLASS_FindClassByAtom( atom, hInstance )) ||
(hInstance != classPtr->hInstance)) return FALSE;
wc->style = classPtr->style;
wc->lpfnWndProc = WINPROC_GetProc( classPtr->winproc, WIN_PROC_16 );
wc->cbClsExtra = (INT16)classPtr->cbClsExtra;
wc->cbWndExtra = (INT16)classPtr->cbWndExtra;
wc->hInstance = (HINSTANCE16)classPtr->hInstance;
wc->hIcon = classPtr->hIcon;
wc->hIconSm = classPtr->hIconSm;
wc->hCursor = classPtr->hCursor;
wc->hbrBackground = classPtr->hbrBackground;
wc->lpszClassName = (SEGPTR)0;
wc->lpszMenuName = (SEGPTR)CLASS_GetMenuNameA( classPtr );
if (HIWORD(wc->lpszMenuName)) /* Make it a SEGPTR */
wc->lpszMenuName = SEGPTR_GET( (LPSTR)wc->lpszMenuName );
return TRUE;
}
/***********************************************************************
* GetClassInfoEx32A (USER32.211)
*/
BOOL32 GetClassInfoEx32A( HINSTANCE32 hInstance, LPCSTR name,
WNDCLASSEX32A *wc )
{
ATOM atom;
CLASS *classPtr;
hInstance = GetExePtr( hInstance ); /* FIXME: not needed in Win32 */
if (!(atom = GlobalFindAtom32A( name )) ||
!(classPtr = CLASS_FindClassByAtom( atom, hInstance )) ||
(hInstance != classPtr->hInstance)) return FALSE;
wc->style = classPtr->style;
wc->lpfnWndProc = (WNDPROC32)WINPROC_GetProc( classPtr->winproc,
WIN_PROC_32A );
wc->cbClsExtra = classPtr->cbClsExtra;
wc->cbWndExtra = classPtr->cbWndExtra;
wc->hInstance = classPtr->hInstance;
wc->hIcon = (HICON32)classPtr->hIcon;
wc->hIconSm = (HICON32)classPtr->hIconSm;
wc->hCursor = (HCURSOR32)classPtr->hCursor;
wc->hbrBackground = (HBRUSH32)classPtr->hbrBackground;
wc->lpszMenuName = CLASS_GetMenuNameA( classPtr );
wc->lpszClassName = NULL;
return TRUE;
}
/***********************************************************************
* GetClassInfoEx32W (USER32.212)
*/
BOOL32 GetClassInfoEx32W( HINSTANCE32 hInstance, LPCWSTR name,
WNDCLASSEX32W *wc )
{
ATOM atom;
CLASS *classPtr;
hInstance = GetExePtr( hInstance ); /* FIXME: not needed in Win32 */
if (!(atom = GlobalFindAtom32W( name )) ||
!(classPtr = CLASS_FindClassByAtom( atom, hInstance )) ||
(hInstance != classPtr->hInstance)) return FALSE;
wc->style = classPtr->style;
wc->lpfnWndProc = (WNDPROC32)WINPROC_GetProc( classPtr->winproc,
WIN_PROC_32W );
wc->cbClsExtra = classPtr->cbClsExtra;
wc->cbWndExtra = classPtr->cbWndExtra;
wc->hInstance = classPtr->hInstance;
wc->hIcon = (HICON32)classPtr->hIcon;
wc->hIconSm = (HICON32)classPtr->hIconSm;
wc->hCursor = (HCURSOR32)classPtr->hCursor;
wc->hbrBackground = (HBRUSH32)classPtr->hbrBackground;
wc->lpszMenuName = CLASS_GetMenuNameW( classPtr );
wc->lpszClassName = NULL;
return TRUE;
}
/***********************************************************************
* ClassFirst (TOOLHELP.69)
*/
BOOL16 ClassFirst( CLASSENTRY *pClassEntry )
{
pClassEntry->wNext = 1;
return ClassNext( pClassEntry );
}
/***********************************************************************
* ClassNext (TOOLHELP.70)
*/
BOOL16 ClassNext( CLASSENTRY *pClassEntry )
{
int i;
CLASS *class = firstClass;
if (!pClassEntry->wNext) return FALSE;
for (i = 1; (i < pClassEntry->wNext) && class; i++) class = class->next;
if (!class)
{
pClassEntry->wNext = 0;
return FALSE;
}
pClassEntry->hInst = class->hInstance;
pClassEntry->wNext++;
GlobalGetAtomName32A( class->atomName, pClassEntry->szClassName,
sizeof(pClassEntry->szClassName) );
return TRUE;
}
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