marko10_000
/
wine-wine
forked from Mirrors/wine-wine
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Implemented {G|S}etWindowSubClass, DefSubclassProc, 

RemoveWindowSubclass.
oldstable
György 'Nog' Jeney 2002-10-02 20:01:01 +00:00 committed by Alexandre Julliard
parent fc01fcd25a
commit f9c011193e
4 changed files with 279 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
dlls/comctl32/comctl32.h
View File

@ -260,4 +260,18 @@ inline static DWORD hwnd_notify_mouse(HWND hwnd, UINT code, DWORD spec, DWORD da
DEFINE_TOOLTIPSCREATED_NOTIFICATION(CTRLINFO, hwndSelf) \
struct __forward_dummy_struc_dec_to_catch_missing_semicolon
/* Our internal stack structure of the window procedures to subclass */
typedef struct
{
struct {
SUBCLASSPROC subproc;
UINT_PTR id;
DWORD_PTR ref;
} SubclassProcs[31];
int stackpos;
int stacknum;
int stacknew;
WNDPROC origproc;
} SUBCLASS_INFO, *LPSUBCLASS_INFO;
#endif /* __WINE_COMCTL32_H */

6
dlls/comctl32/comctl32.spec
View File

@ -188,3 +188,9 @@ init COMCTL32_LibMain
@ stdcall PropertySheetW(ptr) PropertySheetW
@ stdcall UninitializeFlatSB(long) UninitializeFlatSB
@ stdcall _TrackMouseEvent(ptr) _TrackMouseEvent
# These are only available in comctrl 6
@ stdcall DefSubclassProc(long long long long) DefSubclassProc
@ stdcall GetWindowSubclass(long ptr long ptr) GetWindowSubclass
@ stdcall RemoveWindowSubclass(long ptr long) RemoveWindowSubclass
@ stdcall SetWindowSubclass(long ptr long long) SetWindowSubclass

253
dlls/comctl32/commctrl.c
View File

@ -997,6 +997,259 @@ VOID WINAPI InitMUILanguage (LANGID uiLang)
}
/***********************************************************************
* SetWindowSubclass [COMCTL32.@]
*
* Starts a window subclass
*
* PARAMS
* hWnd [in] handle to window subclass.
* pfnSubclass [in] Pointer to new window procedure.
* uIDSubclass [in] Unique identifier of sublass together with pfnSubclass.
* dwRef [in] Reference data to pass to window procedure.
*
* RETURNS
* Success: non-zero
* Failure: zero
*
* BUGS
* If an application manually subclasses a window after subclassing it with
* this API and then with this API again, then none of the previous
* subclasses get called or the origional window procedure.
*/
BOOL WINAPI SetWindowSubclass (HWND hWnd, SUBCLASSPROC pfnSubclass,
UINT_PTR uIDSubclass, DWORD_PTR dwRef)
{
LPSUBCLASS_INFO stack;
int newnum, n;
TRACE ("(%x, %p, %x, %x)\n", hWnd, pfnSubclass, uIDSubclass, dwRef);
/* Since the window procedure that we set here has two additional arguments,
* we can't simply set it as the new window procedure of the window. So we
* set our own window procedure and then calculate the other two arguments
* from there. */
/* See if we have been called for this window */
stack = (LPSUBCLASS_INFO)GetPropA (hWnd, COMCTL32_aSubclass);
if (!stack) {
/* allocate stack */
stack = (LPSUBCLASS_INFO)HeapAlloc (GetProcessHeap(), HEAP_ZERO_MEMORY,
sizeof(SUBCLASS_INFO));
if (!stack) {
ERR ("Failed to allocate our Subclassing stack");
return FALSE;
}
SetPropA (hWnd, COMCTL32_aSubclass, (HANDLE)stack);
/* set window procedure to our own and save the current one */
if (IsWindowUnicode (hWnd))
stack->origproc = (WNDPROC)SetWindowLongW (hWnd, GWL_WNDPROC,
(LONG)DefSubclassProc);
else
stack->origproc = (WNDPROC)SetWindowLongA (hWnd, GWL_WNDPROC,
(LONG)DefSubclassProc);
}
/* Check to see if we have called this function with the same uIDSubClass
* and pfnSubclass */
for (n = 0; n <= stack->stacknum + stack->stacknew - 1; n++)
if ((stack->SubclassProcs[n].id == uIDSubclass) &&
(stack->SubclassProcs[n].subproc == pfnSubclass)) {
stack->SubclassProcs[n].ref = dwRef;
return TRUE;
}
if ((stack->stacknum + stack->stacknew) >= 32) {
ERR ("We have a Subclass stack overflow, please increment size");
return FALSE;
}
/* we can't simply increment both stackpos and stacknum because there might
* be a window procedure running lower in the stack, we can only get them
* up to date once the last window procedure has run */
if (stack->stacknum == stack->stackpos) {
stack->stacknum++;
stack->stackpos++;
} else
stack->stacknew++;
newnum = stack->stacknew + stack->stacknum - 1;
stack->SubclassProcs[newnum].subproc = pfnSubclass;
stack->SubclassProcs[newnum].ref = dwRef;
stack->SubclassProcs[newnum].id = uIDSubclass;
return TRUE;
}
/***********************************************************************
* GetWindowSubclass [COMCTL32.@]
*
* Gets the Reference data from a subclass.
*
* PARAMS
* hWnd [in] Handle to window which were subclassing
* pfnSubclass [in] Pointer to the subclass procedure
* iID [in] Unique indentifier of the subclassing procedure
* pdwRef [out] Pointer to the reference data
*
* RETURNS
* Success: non-sero
* Failure: zero
*/
BOOL WINAPI GetWindowSubclass (HWND hWnd, SUBCLASSPROC pfnSubclass,
UINT_PTR uID, DWORD_PTR *pdwRef)
{
LPSUBCLASS_INFO stack;
int n;
TRACE ("(%x, %p, %x, %p)\n", hWnd, pfnSubclass, uID, pdwRef);
/* See if we have been called for this window */
stack = (LPSUBCLASS_INFO)GetPropA (hWnd, COMCTL32_aSubclass);
if (!stack)
return FALSE;
for (n = 0; n <= stack->stacknum + stack->stacknew - 1; n++)
if ((stack->SubclassProcs[n].id == uID) &&
(stack->SubclassProcs[n].subproc == pfnSubclass)) {
*pdwRef = stack->SubclassProcs[n].ref;
return TRUE;
}
return FALSE;
}
/***********************************************************************
* RemoveWindowSubclass [COMCTL32.@]
*
* Removes a window subclass.
*
* PARAMS
* hWnd [in] Handle to the window were subclassing
* pfnSubclass [in] Pointer to the subclass procedure
* uID [in] Unique identifier of this subclass
*
* RETURNS
* Success: non-zero
* Failure: zero
*/
BOOL WINAPI RemoveWindowSubclass(HWND hWnd, SUBCLASSPROC pfnSubclass, UINT_PTR uID)
{
LPSUBCLASS_INFO stack;
int n;
TRACE ("(%x, %p, %x)\n", hWnd, pfnSubclass, uID);
/* Find the Subclass to remove */
stack = (LPSUBCLASS_INFO)GetPropA (hWnd, COMCTL32_aSubclass);
if (!stack)
return FALSE;
if ((stack->stacknum == stack->stackpos == 1) && !stack->stacknew) {
TRACE("Last Subclass removed, cleaning up\n");
/* clean up our heap and reset the origional window procedure */
if (IsWindowUnicode (hWnd))
SetWindowLongW (hWnd, GWL_WNDPROC, (LONG)stack->origproc);
else
SetWindowLongA (hWnd, GWL_WNDPROC, (LONG)stack->origproc);
HeapFree (GetProcessHeap (), 0, stack);
return TRUE;
}
for (n = stack->stacknum + stack->stacknew - 1; n >= 0; n--)
if ((stack->SubclassProcs[n].id == uID) &&
(stack->SubclassProcs[n].subproc == pfnSubclass)) {
if (n != (stack->stacknum + stack->stacknew))
/* Fill the hole in the stack */
memmove (&stack->SubclassProcs[n], &stack->SubclassProcs[n + 1],
sizeof(stack->SubclassProcs[0]) * (stack->stacknew + stack->stacknum - n));
stack->SubclassProcs[n].subproc = NULL;
stack->SubclassProcs[n].ref = 0;
stack->SubclassProcs[n].id = 0;
/* If we are currently running a window procedure we have to manipulate
* the stack position pointers so that we don't corrupt the stack */
if ((n < stack->stackpos) || (stack->stackpos == stack->stacknum)) {
stack->stacknum--;
stack->stackpos--;
} else if (n >= stack->stackpos)
stack->stacknew--;
return TRUE;
}
return FALSE;
}
/***********************************************************************
* DefSubclassProc [COMCTL32.@]
*
* Calls the next window procedure (ie. the one before this subclass)
*
* PARAMS
* hWnd [in] The window that we're subclassing
* uMsg [in] Message
* wParam [in] WPARAM
* lParam [in] LPARAM
*
* RETURNS
* Success: non-zero
* Failure: zero
*/
LRESULT WINAPI DefSubclassProc (HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
LPSUBCLASS_INFO stack;
int stackpos;
LRESULT ret;
/* retrieve our little stack from the Properties */
stack = (LPSUBCLASS_INFO)GetPropA (hWnd, COMCTL32_aSubclass);
if (!stack) {
ERR ("Our sub classing stack got erased for %x!! Nothing we can do\n", hWnd);
return 0;
}
/* If we are at pos 0 then we have to call the origional window procedure */
if (stack->stackpos == 0) {
if (IsWindowUnicode (hWnd))
return CallWindowProcW (stack->origproc, hWnd, uMsg, wParam, lParam);
else
return CallWindowProcA (stack->origproc, hWnd, uMsg, wParam, lParam);
}
stackpos = --stack->stackpos;
/* call the Subclass procedure from the stack */
ret = stack->SubclassProcs[stackpos].subproc (hWnd, uMsg, wParam, lParam,
stack->SubclassProcs[stackpos].id, stack->SubclassProcs[stackpos].ref);
stack->stackpos++;
if ((stack->stackpos == stack->stacknum) && stack->stacknew) {
stack->stacknum += stack->stacknew;
stack->stackpos += stack->stacknew;
stack->stacknew = 0;
}
/* If we removed the last entry in our stack while a window procedure was
* running then we have to clean up */
if (stack->stackpos == stack->stacknum == 0) {
TRACE("Last Subclass removed, cleaning up\n");
/* clean up our heap and reset the origional window procedure */
if (IsWindowUnicode (hWnd))
SetWindowLongW (hWnd, GWL_WNDPROC, (LONG)stack->origproc);
else
SetWindowLongA (hWnd, GWL_WNDPROC, (LONG)stack->origproc);
HeapFree (GetProcessHeap (), 0, stack);
return TRUE;
}
return ret;
}
/***********************************************************************
* COMCTL32_CreateToolTip [NOT AN API]
*

6
include/commctrl.h
View File

@ -677,6 +677,12 @@ BOOL WINAPI FlatSB_SetScrollProp(HWND, UINT, INT, BOOL);
BOOL WINAPI InitializeFlatSB(HWND);
HRESULT WINAPI UninitializeFlatSB(HWND);
/* Subclassing stuff */
typedef LRESULT (CALLBACK *SUBCLASSPROC)(HWND, UINT, WPARAM, LPARAM, UINT_PTR, DWORD_PTR);
BOOL WINAPI SetWindowSubclass(HWND, SUBCLASSPROC, UINT_PTR, DWORD_PTR);
BOOL WINAPI GetWindowSubclass(HWND, SUBCLASSPROC, UINT_PTR, DWORD_PTR*);
BOOL WINAPI RemoveWindowSubclass(HWND, SUBCLASSPROC, UINT_PTR);
LRESULT WINAPI DefSubclassProc(HWND, UINT, WPARAM, LPARAM);
/* Header control */