Splitpane orientation

wSplitSetOrientation
This macro changes the orientation of a WC_SPLITPANE.
Syntax:
BOOL wSplitSetOrientation(HWND hwnd, ULONG flag);
Parameters:
HWND hwnd:splitpane window handle.
ULONG flag:SPLITS_COLUMNS to divide the splitpane into columns or
SPLITS_ROWS to divide it into rows.
Return value:
BOOL:TRUE if the operation was successful,
FALSE in case of error.
Example:
rc = wSplitSetOrientation(hwndSplitPane, SPLITS_ROWS); ...

dSplitSetOrientation
This macro changes the orientation of a WC_SPLITPANE.
Syntax:
BOOL dSplitSetOrientation(HWND hwndDlg, ULONG id, ULONG flag);
Parameters:
HWND hwndDlg:dialog window handle.
ULONG id:splitpane window ID.
ULONG flag:SPLITS_COLUMNS to divide the splitpane into columns or
SPLITS_ROWS to divide it into rows.
Return value:
BOOL:TRUE if the operation was successful,
FALSE in case of error.
Example:
rc = dSplitSetOrientation(hwndDlg, ID_SPLITPANE, SPLITS_ROWS); ...