RabbitCore eDisplay OP7200, Руководство пользователя

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User’s Manual 105
Displays predefined buttons having the same level setting. The level is defined by either btnCreate-
Text or btnCreateBmp . btnDisplayLevel allows you to display a group of buttons with a
single function call.
PARAMETERS
xmemPtr is the xmem address of the pointer to an array of button descriptors
Level is the button level to display
RETURN VALUE
1 when completed
SEE ALSO
btnClearLevel, btnDisplay, btnClear
Removes a button displayed on the LCD.
PARAMETERS
xmemPtr is the xmem address of the pointer to an array of button descriptors
BtnID is the button ID number of the button to remove
RETURN VALUE
1 when completed
SEE ALSO
btnDisplayLevel, btnDisplay, btnClearLevel
Removes a group of buttons having the same level. This function is called as many times as necessary
until BTN_SUCCESS is returned.
PARAMETERS
xmemPtr is the xmem address of the pointer to an array of button descriptors
Level is the button level to remove; use BTN_ALL_L to remove all the buttons
RETURN VALUE
BTN_SUCCESS when completed, otherwise BTN_PENDING
SEE ALSO
btnDisplayLevel, btnDisplay, btnClear
int btnDisplayLevel(unsigned long xmemPtr,
char Level);
int btnClear(unsigned long xmemPtr, int BtnID);
int btnClearLevel(unsigned long xmemPtr,
char Level);