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user32: The hiword of the return value from LB_ITEMFROMPOINT should be 

a hittest on the item that's returned and not a hittest on the client
area as MSDN states.
This commit is contained in:
Huw Davies 2006-10-27 16:22:02 +01:00 committed by Alexandre Julliard
parent 5731967d2d
commit 0d0bfa4cce
2 changed files with 104 additions and 8 deletions
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34
dlls/user/listbox.c
View File

@ -2731,16 +2731,38 @@ static LRESULT WINAPI ListBoxWndProc_common( HWND hwnd, UINT msg,
{
POINT pt;
RECT rect;
int index;
BOOL hit = TRUE;
/* The hiword of the return value is not a client area
hittest as suggested by MSDN, but rather a hittest on
the returned listbox item. */
if(descr->nb_items == 0)
return 0x1ffff; /* win9x returns 0x10000, we copy winnt */
pt.x = (short)LOWORD(lParam);
pt.y = (short)HIWORD(lParam);
rect.left = 0;
rect.top = 0;
rect.right = descr->width;
rect.bottom = descr->height;
return MAKELONG( LISTBOX_GetItemFromPoint(descr, pt.x, pt.y),
!PtInRect( &rect, pt ) );
SetRect(&rect, 0, 0, descr->width, descr->height);
if(!PtInRect(&rect, pt))
{
pt.x = min(pt.x, rect.right - 1);
pt.x = max(pt.x, 0);
pt.y = min(pt.y, rect.bottom - 1);
pt.y = max(pt.y, 0);
hit = FALSE;
}
index = LISTBOX_GetItemFromPoint(descr, pt.x, pt.y);
if(index == -1)
{
index = descr->nb_items - 1;
hit = FALSE;
}
return MAKELONG(index, hit ? 0 : 1);
}
case LB_SETCARETINDEX16:

74
dlls/user/tests/listbox.c
View File

@ -429,6 +429,79 @@ static void test_listbox_height(void)
DestroyWindow( hList );
}
static void test_itemfrompoint(void)
{
HWND hList = CreateWindow( "ListBox", "list test", 0,
1, 1, 600, 100, NULL, NULL, NULL, NULL );
LONG r, id;
RECT rc;
/* For an empty listbox win2k returns 0x1ffff, win98 returns 0x10000 */
r = SendMessage(hList, LB_ITEMFROMPOINT, 0, MAKELPARAM( /* x */ 30, /* y */ 30 ));
ok( r == 0x1ffff || r == 0x10000, "ret %x\n", r );
r = SendMessage(hList, LB_ITEMFROMPOINT, 0, MAKELPARAM( 700, 30 ));
ok( r == 0x1ffff || r == 0x10000, "ret %x\n", r );
r = SendMessage(hList, LB_ITEMFROMPOINT, 0, MAKELPARAM( 30, 300 ));
ok( r == 0x1ffff || r == 0x10000, "ret %x\n", r );
id = SendMessage( hList, LB_ADDSTRING, 0, (LPARAM) "hi");
ok( id == 0, "item id wrong\n");
id = SendMessage( hList, LB_ADDSTRING, 0, (LPARAM) "hi1");
ok( id == 1, "item id wrong\n");
r = SendMessage(hList, LB_ITEMFROMPOINT, 0, MAKELPARAM( /* x */ 30, /* y */ 30 ));
ok( r == 0x1, "ret %x\n", r );
r = SendMessage(hList, LB_ITEMFROMPOINT, 0, MAKELPARAM( /* x */ 30, /* y */ 37 ));
ok( r == 0x10001, "ret %x\n", r );
id = SendMessage( hList, LB_ADDSTRING, 0, (LPARAM) "hi2");
ok( id == 2, "item id wrong\n");
id = SendMessage( hList, LB_ADDSTRING, 0, (LPARAM) "hi3");
ok( id == 3, "item id wrong\n");
id = SendMessage( hList, LB_ADDSTRING, 0, (LPARAM) "hi4");
ok( id == 4, "item id wrong\n");
id = SendMessage( hList, LB_ADDSTRING, 0, (LPARAM) "hi5");
ok( id == 5, "item id wrong\n");
id = SendMessage( hList, LB_ADDSTRING, 0, (LPARAM) "hi6");
ok( id == 6, "item id wrong\n");
id = SendMessage( hList, LB_ADDSTRING, 0, (LPARAM) "hi7");
ok( id == 7, "item id wrong\n");
/* Set the listbox up so that id 1 is at the top, this leaves 5
partially visible at the bottom and 6, 7 are invisible */
SendMessage( hList, LB_SETTOPINDEX, 1, 0);
r = SendMessage( hList, LB_GETTOPINDEX, 0, 0);
ok( r == 1, "top %d\n", r);
r = SendMessage( hList, LB_GETITEMRECT, 5, (LPARAM)&rc);
ok( r == 1, "ret %x\n", r);
r = SendMessage( hList, LB_GETITEMRECT, 6, (LPARAM)&rc);
ok( r == 0, "ret %x\n", r);
r = SendMessage( hList, LB_ITEMFROMPOINT, 0, MAKELPARAM(/* x */ 10, /* y */ 10) );
ok( r == 1, "ret %x\n", r);
r = SendMessage( hList, LB_ITEMFROMPOINT, 0, MAKELPARAM(1000, 10) );
ok( r == 0x10001, "ret %x\n", r );
r = SendMessage( hList, LB_ITEMFROMPOINT, 0, MAKELPARAM(10, -10) );
ok( r == 0x10001, "ret %x\n", r );
r = SendMessage( hList, LB_ITEMFROMPOINT, 0, MAKELPARAM(10, 100) );
ok( r == 0x10005, "item %x\n", r );
r = SendMessage( hList, LB_ITEMFROMPOINT, 0, MAKELPARAM(10, 200) );
ok( r == 0x10005, "item %x\n", r );
DestroyWindow( hList );
}
START_TEST(listbox)
{
const struct listbox_test SS =
@ -503,4 +576,5 @@ START_TEST(listbox)
test_ownerdraw();
test_selection();
test_listbox_height();
test_itemfrompoint();
}