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Don't fetch the window class name if it's not needed to compute the 

message name.
This commit is contained in:
Alexandre Julliard 2005-05-26 12:26:23 +00:00
parent 6f43c18fe7
commit 6bbd63e87f
1 changed files with 26 additions and 13 deletions
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39
dlls/user/spy.c
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@ -2007,6 +2007,28 @@ static const USER_MSG *SPY_Bsearch_Msg( const USER_MSG *first, const USER_MSG *l
return NULL;
}
/***********************************************************************
* SPY_GetClassName
*
* Sets the value of "wnd_class" member of the instance structure.
*/
static void SPY_GetClassName( SPY_INSTANCE *sp_e )
{
DWORD save_error;
/* save and restore error code over the next call */
save_error = GetLastError();
/* special code to detect a property sheet dialog */
if ((GetClassLongW(sp_e->msg_hwnd, GCW_ATOM) == (LONG)WC_DIALOGW) &&
(GetPropW(sp_e->msg_hwnd, PropSheetInfoStr))) {
strcpyW(sp_e->wnd_class, WC_PROPSHEETW);
}
else {
GetClassNameW(sp_e->msg_hwnd, sp_e->wnd_class, sizeof(sp_e->wnd_class)/sizeof(WCHAR));
}
SetLastError(save_error);
}
/***********************************************************************
* SPY_GetMsgStuff
*
@ -2031,6 +2053,8 @@ static void SPY_GetMsgStuff( SPY_INSTANCE *sp_e )
return;
}
}
if (!sp_e->wnd_class[0]) SPY_GetClassName(sp_e);
#if DEBUG_SPY
TRACE("looking class %s\n", debugstr_w(sp_e->wnd_class));
#endif
@ -2073,20 +2097,9 @@ static void SPY_GetMsgStuff( SPY_INSTANCE *sp_e )
*/
static void SPY_GetWndName( SPY_INSTANCE *sp_e )
{
DWORD save_error;
INT len;
/* save and restore error code over the next call */
save_error = GetLastError();
/* special code to detect a property sheet dialog */
if ((GetClassLongW(sp_e->msg_hwnd, GCW_ATOM) == (LONG)WC_DIALOGW) &&
(GetPropW(sp_e->msg_hwnd, PropSheetInfoStr))) {
strcpyW(sp_e->wnd_class, WC_PROPSHEETW);
}
else {
GetClassNameW(sp_e->msg_hwnd, sp_e->wnd_class, sizeof(sp_e->wnd_class)/sizeof(WCHAR));
}
SetLastError(save_error);
SPY_GetClassName( sp_e );
len = InternalGetWindowText(sp_e->msg_hwnd, sp_e->wnd_name, sizeof(sp_e->wnd_name)/sizeof(WCHAR));
if(!len) /* get class name */
@ -2116,7 +2129,7 @@ const char *SPY_GetMsgName( UINT msg, HWND hWnd )
ext_sp_e.msg_hwnd = hWnd;
ext_sp_e.lParam = 0;
ext_sp_e.wParam = 0;
SPY_GetWndName(&ext_sp_e);
ext_sp_e.wnd_class[0] = 0;
SPY_GetMsgStuff(&ext_sp_e);
return wine_dbg_sprintf("%s", ext_sp_e.msg_name);
}