IAccessible2 API
Version 1.3
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This interface gives access to a two-dimensional table. More...
import "AccessibleTable2.idl";
Public Member Functions | |
HRESULT | cellAt ([in] long row,[in] long column,[out, retval] IUnknown **cell) |
Returns the accessible object at the specified row and column in the table. This object could be an IAccessible or an IAccessible2. More... | |
HRESULT | caption ([out, retval] IUnknown **accessible) |
Returns the caption for the table. The returned object could be an IAccessible or an IAccessible2. More... | |
HRESULT | columnDescription ([in] long column,[out, retval] BSTR *description) |
Returns the description text of the specified column in the table. More... | |
HRESULT | nColumns ([out, retval] long *columnCount) |
Returns the total number of columns in table. More... | |
HRESULT | nRows ([out, retval] long *rowCount) |
Returns the total number of rows in table. More... | |
HRESULT | nSelectedCells ([out, retval] long *cellCount) |
Returns the total number of selected cells. More... | |
HRESULT | nSelectedColumns ([out, retval] long *columnCount) |
Returns the total number of selected columns. More... | |
HRESULT | nSelectedRows ([out, retval] long *rowCount) |
Returns the total number of selected rows. More... | |
HRESULT | rowDescription ([in] long row,[out, retval] BSTR *description) |
Returns the description text of the specified row in the table. More... | |
HRESULT | selectedCells ([out, size_is(,*nSelectedCells)] IUnknown ***cells,[out, retval] long *nSelectedCells) |
Returns a list of accessibles currently selected. More... | |
HRESULT | selectedColumns ([out, size_is(,*nColumns)] long **selectedColumns,[out, retval] long *nColumns) |
Returns a list of column indexes currently selected (0 based). More... | |
HRESULT | selectedRows ([out, size_is(,*nRows)] long **selectedRows,[out, retval] long *nRows) |
Returns a list of row indexes currently selected (0 based). More... | |
HRESULT | summary ([out, retval] IUnknown **accessible) |
Returns the summary description of the table. The returned object could be an IAccessible or an IAccessible2. More... | |
HRESULT | isColumnSelected ([in] long column,[out, retval] boolean *isSelected) |
Returns a boolean value indicating whether the specified column is completely selected. More... | |
HRESULT | isRowSelected ([in] long row,[out, retval] boolean *isSelected) |
Returns a boolean value indicating whether the specified row is completely selected. More... | |
HRESULT | selectRow ([in] long row) |
Selects a row and unselects all previously selected rows. More... | |
HRESULT | selectColumn ([in] long column) |
Selects a column and unselects all previously selected columns. More... | |
HRESULT | unselectRow ([in] long row) |
Unselects one row, leaving other selected rows selected (if any). More... | |
HRESULT | unselectColumn ([in] long column) |
Unselects one column, leaving other selected columns selected (if any). More... | |
HRESULT | modelChange ([out, retval] IA2TableModelChange *modelChange) |
Returns the type and extents describing how a table changed. More... | |
This interface gives access to a two-dimensional table.
Please also refer to the IAccessibleTableCell interface.
If you want to support older applications you should also support the IAccessibleTable inteface.
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Returns the caption for the table. The returned object could be an IAccessible or an IAccessible2.
[out] | accessible | If the table has a caption then a reference to it is returned, else a NULL pointer is returned. |
S_OK | |
S_FALSE | if there is nothing to return, [out] value is NULL |
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get |
Returns the accessible object at the specified row and column in the table. This object could be an IAccessible or an IAccessible2.
[in] | row | The 0 based row index for which to retrieve the cell. |
[in] | column | The 0 based column index for which to retrieve the cell. |
[out] | cell | If both row and column index are valid then the corresponding accessible object is returned that represents the requested cell regardless of whether the cell is currently visible (on the screen). |
S_OK | |
E_INVALIDARG | if bad [in] passed |
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get |
Returns the description text of the specified column in the table.
[in] | column | The 0 based index of the column for which to retrieve the description. |
[out] | description | Returns the description text of the specified column in the table if such a description exists. Otherwise a NULL pointer is returned. |
S_OK | |
S_FALSE | if there is nothing to return, [out] value is NULL |
E_INVALIDARG | if bad [in] passed |
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get |
Returns a boolean value indicating whether the specified column is completely selected.
[in] | column | 0 based index of the column for which to determine whether it is selected. |
[out] | isSelected | Returns TRUE if the specified column is selected completely and FALSE otherwise. |
S_OK | |
E_INVALIDARG | if bad [in] passed |
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get |
Returns a boolean value indicating whether the specified row is completely selected.
[in] | row | 0 based index of the row for which to determine whether it is selected. |
[out] | isSelected | Returns TRUE if the specified row is selected completely and FALSE otherwise. |
S_OK | |
E_INVALIDARG | if bad [in] passed |
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get |
Returns the type and extents describing how a table changed.
Provided for use by the IA2_EVENT_TABLE_MODEL_CHANGED event handler.
This data is only guaranteed to be valid while the thread notifying the event continues. Once the handler has returned, the validity of the data depends on how the server manages the life cycle of its objects. Also, note that the server may have different life cycle management strategies for controls depending on whether or not a control manages its children. Lists, trees, and tables can have a large number of children and thus it's possible that the child objects for those controls would only be created as needed. Servers should document their life cycle strategy as this will be of interest to assistive technology or script engines accessing data out of process or from other threads. Servers only need to save the most recent row and column values associated with the change and a scope of the entire application is adequate.
[out] | modelChange | A struct of (type(insert, delete, update), firstRow, lastRow, firstColumn, lastColumn). |
S_OK | |
S_FALSE | if there is nothing to return, [out] value is NULL |
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Returns the total number of columns in table.
[out] | columnCount | Number of columns in table (including columns outside the current viewport) |
S_OK |
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Returns the total number of rows in table.
[out] | rowCount | Number of rows in table (including rows outside the current viewport) |
S_OK |
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Returns the total number of selected cells.
[out] | cellCount | Number of cells currently selected |
S_OK |
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Returns the total number of selected columns.
[out] | columnCount | Number of columns currently selected |
S_OK |
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get |
Returns the total number of selected rows.
[out] | rowCount | Number of rows currently selected |
S_OK |
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Returns the description text of the specified row in the table.
[in] | row | The 0 based index of the row for which to retrieve the description. |
[out] | description | Returns the description text of the specified row in the table if such a description exists. Otherwise a NULL pointer is returned. |
S_OK | |
S_FALSE | if there is nothing to return, [out] value is NULL |
E_INVALIDARG | if bad [in] passed |
HRESULT IAccessibleTable2::selectColumn | ( | [in] long | column | ) |
Selects a column and unselects all previously selected columns.
The behavior should mimic that of the application, but for those applications which do not have a means in the GUI to select a full column of cells the behavior should be as follows: First any selected columns in the table are unselected. Then the entire column of cells for the specified column is selected. If any of the cells in the selected column span additional columns, the cells in those columns are also selected.
[in] | column | 0 based index of the column to be selected. |
S_OK | |
E_INVALIDARG | if bad [in] passed |
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get |
Returns a list of accessibles currently selected.
[out] | cells | Pointer to an array of references to selected accessibles. The array is allocated by the server with CoTaskMemAlloc and freed by the client with CoTaskMemFree. |
[out] | nSelectedCells | The number of accessibles returned; the size of the returned array. |
S_OK | |
S_FALSE | if there are none, [out] values are NULL and 0 respectively |
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get |
Returns a list of column indexes currently selected (0 based).
[out] | selectedColumns | A pointer to an array of column indexes of selected columns (each index is 0 based). The array is allocated by the server with CoTaskMemAlloc and freed by the client with CoTaskMemFree. |
[out] | nColumns | The number of column indexes returned; the size of the returned array. |
S_OK | |
S_FALSE | if there are none, [out] values are NULL and 0 respectively |
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get |
Returns a list of row indexes currently selected (0 based).
[out] | selectedRows | An array of row indexes of selected rows (each index is 0 based). The array is allocated by the server with CoTaskMemAlloc and freed by the client with CoTaskMemFree. |
[out] | nRows | The number of row indexes returned; the size of the returned array. |
S_OK | |
S_FALSE | if there are none, [out] values are NULL and 0 respectively |
HRESULT IAccessibleTable2::selectRow | ( | [in] long | row | ) |
Selects a row and unselects all previously selected rows.
The behavior should mimic that of the application, but for those applications which do not have a means in the GUI to select a full row of cells the behavior should be as follows: First any selected rows in the table are unselected. Then the entire row of cells for the specified row is selected. If any of the cells in the selected row span additional rows, the cells in those rows are also selected.
[in] | row | 0 based index of the row to be selected. |
S_OK | |
E_INVALIDARG | if bad [in] passed |
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get |
Returns the summary description of the table. The returned object could be an IAccessible or an IAccessible2.
[out] | accessible | Returns a reference to an implementation dependent accessible object representing the table's summary or a NULL pointer if the table does not support a summary. |
S_OK | |
S_FALSE | if there is nothing to return, [out] value is NULL |
HRESULT IAccessibleTable2::unselectColumn | ( | [in] long | column | ) |
Unselects one column, leaving other selected columns selected (if any).
The behavior should mimic that of the application, but for those applications which do not have a means in the GUI to unselect a full column of cells the behavior should be as follows: The entire column of cells for the specified column is unselected. If any of the cells in the selected column span additional columns, the cells in those columns are also unselected.
[in] | column | 0 based index of the column to be unselected. |
S_OK | |
E_INVALIDARG | if bad [in] passed |
HRESULT IAccessibleTable2::unselectRow | ( | [in] long | row | ) |
Unselects one row, leaving other selected rows selected (if any).
The behavior should mimic that of the application, but for those applications which do not have a means in the GUI to unselect a full row of cells the behavior should be as follows: The entire row of cells for the specified row is unselected. If any of the cells in the selected row span additional rows, the cells in those rows are also unselected.
[in] | row | 0 based index of the row to be unselected. |
S_OK | |
E_INVALIDARG | if bad [in] passed |