Cocoa osx PDFView NSPrintOperation PrintPanel not showing page preview

Question

In my app for Mac I have a webview that shows some html content. I create a PDFDocument from that webview and then I want to print that document. So I create a PDFView from the

Answer 1

From this link:

PDFDocument *doc = ...;

// Invoke private method.
// NOTE: Use NSInvocation because one argument is a BOOL type. Alternately, you could declare the method in a category and just call it.
BOOL autoRotate = NO; // Set accordingly.
NSMethodSignature *signature = [PDFDocument instanceMethodSignatureForSelector:@selector(getPrintOperationForPrintInfo:autoRotate:)];
NSInvocation *invocation = [NSInvocation invocationWithMethodSignature:signature];
[invocation setSelector:@selector(getPrintOperationForPrintInfo:autoRotate:)];
[invocation setArgument:&printInfo atIndex:2];
[invocation setArgument:&autoRotate atIndex:3];
[invocation invokeWithTarget:doc];

// Grab the returned print operation.
void *result;
[invocation getReturnValue:&result];

NSPrintOperation *op = (__bridge NSPrintOperation *)result;
[op setShowsPrintPanel:YES];
[op setShowsProgressPanel:YES];
[op runOperation];

This works on OSX from 10.4 to 10.10 (Yosemite).

EDIT: You can also see this answer which is similar, but with less lines of code.