Z-World eDisplay OP7200, User Manual

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92 eDisplay (OP7200)
Searches the list of buttons in use for a button that matches the x,y coordinates from the touchscreen.
PARAMETERS
xmemPtr is the command code for the button assigned by btnInit
x is the x coordinate of the location on the touchscreen
y is the y coordinate of the location on the touchscreen
RETURN VALUE
The command code of the button corresponding to the button being verified. If the button is not the cor-
rect button, the function returns a negative number.
SEE ALSO
btnSearchXY, btnGet
Checks the touchscreen x,y coordinates against a given set of buttons being displayed to look for a match.
If a match is found, then the button ID code for the button will be returned.
PARAMETERS
xmemPtr is the command code for the button assigned by btnInit
RETURN VALUE
The button ID code of the button corresponding to the button being pressed. If no such button is found,
the function returns a negative number.
SEE ALSO
btnSearchXY, btnVerifyXY,
int btnVerifyXY(unsigned long xmemPtr, int btn,
int x, int y);
int btnGet(unsigned long xmemPtr);