Edit AllPages

Part of the iPhone General/UIKit framework. Subclass of General/UIView.

Analogous to General/NSControl. General/UIControl does not, however, implement setTarget: and setAction: methods like General/NSControl does: It has a single method

- (void)addTarget:(id)target action:(SEL)action forEvents:(int)eventMask;

which lets one control have multiple targets, and call back in response to different events. The event mask appears to be the same as General/NSEvent’s mask enum.

    /* from */
    #define General/UIMouseDown                     1
    #define General/UIMouseDragged                1<<2  //within active area of control
    #define General/UIMouseExitedDragged     1<<3  //move outside active area 
    #define General/UIMouseEntered                  1<<4 //move crossed into active area
    #define General/UIMouseExited                   1<<5 //move crossed out of active area
    #define General/UIMouseUp                   1<<6 //up within the active area
    #define General/UIMouseExitedUp              1<<7 //up outside active area
    /* end from */

General/UIValueButton* button = General/[[UIValueButton alloc] initWithFrame:rect];

[button addTarget:self action:@selector(buttonDown:) forEvents:1 /* mouse down */];
[button addTarget:self action:@selector(buttonUp:) forEvents:(1<<6) /* mouse up */];