Sensoray 2224 Windows - Manual (Page 58)

MID2226_API int S2226_OverlayDelXY(
int xpos,
int ypos,
HANDLE hdev
);
Delete an overlay at x, y location if one exists at that location.
Parameters
xpos
x position
ypos
y position
hdev
handle to device (obtained from S2226_OpenBoard).
Returns
0 on success, -1 if overlay does not exist, -2 if that sub-window already used.
MID2226_API int S2226_OverlayDel(
int WinIndex,
HANDLE hdev
);
Delete overlay with index WinIndex.
Parameters
WinIndex
(0-7) sub-window position to query.
hdev
handle to device (obtained from S2226_OpenBoard).
Returns
0 on success, -1 if overlay does not exist.
MID2226_API int S2226_UpdateOverlay(
HANDLE hdev
);
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