Yoctopuce Yocto-MaxiDisplay Mode D'emploi page 169

NSLog(@" demo
NSLog(@" demo any
exit(1);
}
int main(int argc,
{
NSError *error;
YDisplay *disp;
YDisplayLayer *l0, *l1;
int h, w, y, x, vx, vy;
@autoreleasepool {
// Setup the API to use local USB devices
if([YAPI RegisterHub:@"usb": &error] != YAPI_SUCCESS) {
NSLog(@"RegisterHub error:
usage();
return 1;
}
if(argc < 2) {
disp = [YDisplay
if(disp == nil) {
NSLog(@"No module connected (check USB
usage();
return 1;
}
} else {
NSString *target
disp = [YDisplay
if(![disp isOnline]) {
NSLog(@"Module not connected (check identification and USB
usage();
return 1;
}
}
// clear screen (and all layers)
[disp resetAll];
// retreive the display size
w = [disp get_displayWidth];
h = [disp get_displayHeight];
// reteive the first layer
l0 = [disp get_displayLayer:0];
// display a text in the middle of the screen
[l0 drawText:w
// visualize each corner
[l0 moveTo:0 :5];
[l0 lineTo:0 :0];
[l0 lineTo:5 :0];
[l0 moveTo:0 :h
[l0 lineTo:0 :h
[l0 lineTo:5 :h
[l0 moveTo:w -
[l0 lineTo:w -
[l0 lineTo:w -
[l0 moveTo:w -
[l0 lineTo:w -
[l0 lineTo:w -
// draw a circle in the top left corner of layer 1
l1 = [disp get_displayLayer:1];
[l1 clear];
[l1 drawCircle:h
// and animate the layer
NSLog(@"Use Ctrl-C to
x = 0;
y = 0;
vx = 1;
vy = 1;
while ([disp isOnline]) {
x += vx;
y += vy;
if ((x < 0)
if ((y < 0)
www.yoctopuce.com
<logical_name>");
const char * argv[])
%@", [error localizedDescription]);
FirstDisplay];
= [NSString stringWithUTF8String:argv[1]];
FindDisplay:target];
/ 2 :h / 2 :Y_ALIGN_CENTER
- 6];
- 1];
- 1];
1 :h - 6];
1 :h - 1];
6 :h - 1];
1 :5];
1 :0];
6 :0];
/ 8 :h / 8 :h / 8];
stop");
|| (x > w - (h / 4)))
|| (y > h - (h / 4)))
21. Utilisation du Yocto-MaxiDisplay en Objective-C
(use any discovered
cable)");
:@"Hello world!"];
vx = -vx;
vy = -vy;
device)");
cable)");
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