NAME
XkbSetPtrActionY - Sets the highYYY and lowYYY fields of act from the signed integer value y SYNOPSIS void XkbSetPtrActionY (XkbPtrAction act, int y); ARGUMENTS
- act action in which to set Y
- y new value to set 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 XkbSANoAction. If the MouseKeys control is enabled, a server action of type XkbSAMovePtr instructs the server to generate core pointer MotionNo‐ tify 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 XkbSAMovePtr action. The type field of the XkbPtrAction structure is always XkbSAMovePtr. The flags field is a bitwise inclusive OR of the masks shown in Table 1. Table 1 Pointer Action Types ──────────────────────────────────────────────────────────────── Action Type Meaning ──────────────────────────────────────────────────────────────── XkbSANoAcceleration If not set, and the MouseKeysAccel con‐ trol is enabled, the KeyPress initiates a mouse keys timer for this key; every time the timer expires, the cursor moves. XkbSAMoveAbsoluteX If 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 deter‐ mine the new pointer X coordinate. XkbSAMoveAbsoluteY If 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 deter‐ mine the new pointer Y coordinate. Each of the X and Y coordinates of the XkbPtrAction structure is com‐
posed of two signed 16-bit values, that is, the X coordinate is com‐ posed of highXXX and lowXXX, 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; /∗ XkbSAMovePtr */ unsigned char flags; /∗ determines type of pointer motion */ unsigned char highXXX; /∗ x coordinate, high bits*/ unsigned char lowXXX; /∗ y coordinate, low bits */ unsigned char highYYY; /∗ x coordinate, high bits */ unsigned char lowYYY; /∗ y coordinate, low bits */ } XkbPtrAction; X Version 11 libX11 1.6.5 XkbSetPtrActionY(3)