Capture mouse cursor in screenshot - objective-c

Question

I am developing Mac desktop application, where I am capturing the screen using
CGImageRef screenShot = CGWindowListCreateImage(CGRectInfinite, kCGWindowListOptionAll, kCGNullWindowID, kCGWindowImageDefault);
The problem is, I am expecting it should show the mouse cursor too, but it's not showing.
Do I need to enable any settings for that?
I tried the following before calling this function:
CGDisplayShowCursor(kCGDirectMainDisplay);
CGAssociateMouseAndMouseCursorPosition(true);
, but it didn't work.
When I checked using following
bool bCursor = CGCursorIsDrawnInFramebuffer(); /* This returns false */
bCursor = CGCursorIsVisible(); /* This returns true */
, te value says the cursor was not drawn in the frame buffer, however the cursor is visible.
I suppose I only need to do is to draw the cursor in the frame buffer, how do I do this?.

Answer 1

it seems, framebuffer doesn't give me the mouse cursor, so i am drawing my own, this is the code snippet , might be help full to you guys,
-(CGImageRef)appendMouseCursor:(CGImageRef)pSourceImage{
// get the cursor image
NSPoint mouseLoc;
mouseLoc = [NSEvent mouseLocation]; //get cur
NSLog(#"Mouse location is x=%d,y=%d",(int)mouseLoc.x,(int)mouseLoc.y);
// get the mouse image
NSImage *overlay = [[[NSCursor arrowCursor] image] copy];
NSLog(#"Mouse location is x=%d,y=%d cursor width = %d, cursor height = %d",(int)mouseLoc.x,(int)mouseLoc.y,(int)[overlay size].width,(int)[overlay size].height);
int x = (int)mouseLoc.x;
int y = (int)mouseLoc.y;
int w = (int)[overlay size].width;
int h = (int)[overlay size].height;
int org_x = x;
int org_y = y;
size_t height = CGImageGetHeight(pSourceImage);
size_t width = CGImageGetWidth(pSourceImage);
int bytesPerRow = CGImageGetBytesPerRow(pSourceImage);
unsigned int * imgData = (unsigned int*)malloc(height*bytesPerRow);
// have the graphics context now,
CGRect bgBoundingBox = CGRectMake (0, 0, width,height);
CGContextRef context = CGBitmapContextCreate(imgData, width,
height,
8, // 8 bits per component
bytesPerRow,
CGImageGetColorSpace(pSourceImage),
CGImageGetBitmapInfo(pSourceImage));
// first draw the image
CGContextDrawImage(context,bgBoundingBox,pSourceImage);
// then mouse cursor
CGContextDrawImage(context,CGRectMake(0, 0, width,height),pSourceImage);
// then mouse cursor
CGContextDrawImage(context,CGRectMake(org_x, org_y, w,h),[overlay CGImageForProposedRect: NULL context: NULL hints: NULL] );
// assuming both the image has been drawn then create an Image Ref for that
CGImageRef pFinalImage = CGBitmapContextCreateImage(context);
CGContextRelease(context);
return pFinalImage; /* to be released by the caller */
}