PrevShown
Returns the previous visible item.
C
int WINAPI SftTree_GetPrevShown(HWND hwndCtl, int index);
int WINAPI SftTreeSplit_GetPrevShown(HWND hwndCtl, int index);
C++
int CSftTree::GetPrevShown(int index) const;
int CSftTreeSplit::GetPrevShown(int index) const;
Parameters
hwndCtl
The window handle of the tree control.
index
The zero-based index of the item before which the previous visible item should be located. To locate the last visible item (if present) in a tree control specify -1.
Returns
The return value is the index of the previous visible item or -1 if no item is visible.
Comments
The GetPrevShown function returns the previous visible item.
GetPrevShown is used to find the previous visible item, given an item index. Dependent items of a collapsed are skipped using this function.
GetNextShown can be used to retrieve the next visible item.
Examples
C
// displayed columns
// Please note that cell merging is not supported.
int index = m_editIndex, col = m_editCol;
int dispCol, firstDispCol, lastDispCol;
LPSFTTREE_COLUMN_EX lpCol;
int nCols;
int lastShown = SftTree_GetPrevShown(g_hwndTree, -1);
// get general information about tree control and columns
nCols = SftTree_GetColumnsEx(g_hwndTree, &lpCol);/* Get column attributes */
dispCol = SftTree_GetDisplayColumn(g_hwndTree, col);
firstDispCol = SftTree_GetFirstDisplayColumn(g_hwndTree);
lastDispCol = SftTree_GetLastDisplayColumn(g_hwndTree);
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C++
// displayed columns
// Please note that cell merging is not supported.
int index = m_editIndex, col = m_editCol;
int dispCol, firstDispCol, lastDispCol;
LPSFTTREE_COLUMN_EX lpCol;
int nCols;
int lastShown = m_Tree.GetPrevShown(-1);
// get general information about tree control and columns
nCols = m_Tree.GetColumns(&lpCol);/* Get column attributes */
dispCol = m_Tree.GetDisplayColumn(col);
firstDispCol = m_Tree.GetFirstDisplayColumn();
lastDispCol = m_Tree.GetLastDisplayColumn();
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