SS_VQUERYDATA Structure
Applies To
fpSpread control
Definition
typedef struct ss_vquerydata
{
SS_COORD Row;
SS_COORD RowsNeeded;
SS_COORD RowsLoaded;
WORD wDirection;
BOOL fAtTop;
BOOL fAtBottom;
} SS_VQUERYDATA, FAR *LPSS_VQUERYDATA;
Fields
The following fields are available:
| Field | Description | |
|---|---|---|
| Row | Virtual top row to begin assignment of data | |
| RowsNeeded | Number of rows requested | |
| RowsLoaded | Application should set the number of rows loaded before returning | |
| wDirection | Direction to retrieve data Choose one of the following values: |
|
| Constant | Description | |
| SS_VDOWN | The next group of data is needed. | |
| SS_VUP | The previous group of data is needed. | |
| SS_VTOP | The first group of data is needed. | |
| SS_VBOTTOM | The last group of data is needed. | |
| SS_VREFRESH | Used if the contents of the buffer are being refreshed as a result of the SSVRefreshBuffer function. | |
| fAtTop | Application should set this flag to TRUE if the top of the data has been reached | |
| fAtBottom | Application should set this flag to TRUE if the bottom of the data has been reached | |
Remarks
This structure is used with the SSM_VQUERYDATA message to inform the application that the sheet needs more data when the sheet is in virtual mode.