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XkbSetPtrActionX

Section: XKB FUNCTIONS (3)
Updated: libX11 1.6.3
Index Return to Main Contents
 

NAME

XkbSetPtrActionX - Sets the high_XXX and low_XXX fields of act from the signed integer value x  

SYNOPSIS

void XkbSetPtrActionX (XkbPtrAction act, int x);
     
 

ARGUMENTS

- act
action in which to set X
- x
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 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_NoAcceleration If 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_MoveAbsoluteX 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 determine the new pointer X coordinate.
XkbSA_MoveAbsoluteY 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 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;


 

Index

NAME
SYNOPSIS
ARGUMENTS
DESCRIPTION
STRUCTURES


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