XkbPtrActionX - Man Page

Returns the high_XXX and low_XXX fields of act converted to a signed int

Synopsis

int XkbPtrActionX (XkbPtrAction act);

Arguments

act

action from which to extract X

Description

Actions associated with the XkbPtrAction structure move the pointer when keys  are pressed and released.

If the MouseKeys control is not enabled, KeyPress and KeyRelease events are  treated as though the action is XkbSA_NoAction.

If the MouseKeys control is enabled, a server action of type XkbSA_MovePtr  instructs the server to generate core pointer MotionNotify events rather than  the usual KeyPress event, and the corresponding KeyRelease event disables any  mouse keys timers that were created as a result of handling the XkbSA_MovePtr  action.

The type field of the XkbPtrAction structure is always XkbSA_MovePtr.

The flags field is a bitwise inclusive OR of the masks shown in Table 1.

Table 1 Pointer Action Types
Action TypeMeaning
XkbSA_NoAccelerationIf not set, and the MouseKeysAccel control is enabled, the KeyPress initiates a  mouse keys timer for this key; every time the timer expires, the cursor moves.
XkbSA_MoveAbsoluteXIf set, the X portion of the structure specifies the new pointer X coordinate.  Otherwise, the X portion is added to the current pointer X coordinate to  determine the new pointer X coordinate.
XkbSA_MoveAbsoluteYIf set, the Y portion of the structure specifies the new pointer Y coordinate.  Otherwise, the Y portion is added to the current pointer Y coordinate to  determine the new pointer Y coordinate.

Each of the X and Y coordinates of the XkbPtrAction structure is composed of two signed 16-bit values, that is, the X coordinate is composed of high_XXX and low_XXX, and similarly for the Y coordinate. Xkb provides the following macros, to  convert between a signed integer and two signed 16-bit values in XkbPtrAction  structures.

Structures

    typedef struct _XkbPtrAction {
        unsigned char    type;         /* XkbSA_MovePtr */
        unsigned char    flags;        /* determines type of pointer motion */
        unsigned char    high_XXX;     /* x coordinate, high bits*/
        unsigned char    low_XXX;      /* y coordinate, low bits */
        unsigned char    high_YYY;     /* x coordinate, high bits */
        unsigned char    low_YYY;      /* y coordinate, low bits */
    } XkbPtrAction;

Info

libX11 1.8.7 X Version 11 XKB FUNCTIONS