如何使用Win32 :: GuiTest檢查樹視圖控件的擴展狀態？

Question

在Win32::GuiTest documentation我只能找到兩個函數來處理樹控件，GetTreeViewSelPath和SelTreeViewItemPath。任何人都可以推薦一種方法來檢測樹中節點的打開/關閉狀態嗎？

Answer 1

我的樹視圖其實是一個「森林」（一堆樹）。我發現我可以遍歷根：

my $i = 0; 
my @states; 
for (my $node = Win32::GuiTest::SendMessage($windows[0], 
        0x1100 + 10, # Get next 
        0,   # root 
        0);   # N/A 
$node != 0; 
$node = Win32::GuiTest::SendMessage($windows[0], 
        0x1100 + 10, # Get next 
        1,   # Sibling 
        $node)) { # from current 

my $state = Win32::GuiTest::SendMessage($windows[0], 0x1100 + 39, 
        $node, 0xff); 
$states[$i] = $state; 
$i++; 
} 

我發現常數（根，兄弟姐妹等）在http://www.xtremevbtalk.com/showthread.php?t=45515：

' messages 
Public Const TV_FIRST = &H1100 
Public Const TVM_GETNEXTITEM = (TV_FIRST + 10) 
Public Const TVM_GETITEM = (TV_FIRST + 12) 

' TVM_GETNEXTITEM wParam values 
Public Enum TVGN_Flags 
TVGN_ROOT = &H0 
TVGN_NEXT = &H1 
TVGN_PREVIOUS = &H2 
TVGN_PARENT = &H3 
TVGN_CHILD = &H4 
TVGN_FIRSTVISIBLE = &H5 
TVGN_NEXTVISIBLE = &H6 
TVGN_PREVIOUSVISIBLE = &H7 
TVGN_DROPHILITE = &H8 
TVGN_CARET = &H9 

如果我有一個正常的樹，我可能會做：

node = root 
for (node = child; node != 0; node = sibling) { 
    ... 
}