ACS ACR89U-A1, Reference Manual

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ACR89U-A1 – Reference Manual
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pDisplayStatus [out] Pointer to a DISPLAYSTATUS structure that saves the newly set position
parameters. See also Section 4.1.3.4 for more information about the
DISPLAYSTATUS structure.
Return Values:
AS_STATUS This functions returns different values depending on whether it succeeds
or fails. AS_STATUS.DllError contains the status as returned by the DLL.
AS_STATUS.W32Error contains the Win32 error code associated with
the DLL error, if any. See also Appendix A for the possible return codes.
Example:
4.2.4.2. AS_SetLcdBacklight
This function turns the backlight of the LCD on or off.
AS_STATUS AS_DECL
AS_SetLcdBacklight
(
IN INT nDevId,
IN PLCDBACKLIGHT pLcdBacklight,
OUT PDISPLAYSTATUS pDisplayStatus);
Parameters:
nDevId [in] Handle returned by a previous call to AS_Open .
pLcdBacklight [in] Pointer to a LCDBACKLIGHT structure that includes the cursor position
parameters to be set. See also Section 4.1.2.4 for more information about the
LCDBACKLIGHT
structure.
pDisplayStatus [out] Pointer to a DISPLAYSTATUS structure containing the cursor position after
the action. See also Section 4.1.3.4 for more information about the
DISPLAYSTATUS structure.
Return Values:
AS_STATUS This functions returns different values depending on whether it succeeds or fails.
AS_STATUS.DllError contains the status as returned by the DLL.
AS_STATUS.W32Error contains the Win32 error code associated with the DLL
error, if any. See also Appendix A for the possible return codes.
LCDCURSOR lcdCursor;
DISPLAYSTATUS displayStatus;
AS_STATUS status;
//position the cursor at the upper left corner of the LCD
//assumed is a connection has already been established
lcdCursor.cbColPosition = 0;
lcdCursor.cbRowPosition = 0;
status = AS_SetLcdCursor(nDid, &lcdCursor, &displayStatus);