Re: Question about dump a image representation of WebView

• Subject: Re: Question about dump a image representation of WebView
• From: Maciej Stachowiak <email@hidden>
• Date: Fri, 21 Oct 2005 02:29:44 -0700
• Delivered-to: email@hidden
• Delivered-to: email@hidden

On Oct 18, 2005, at 3:26 AM, huaixing zhang wrote:

Hi All:

In my program, I want to dump a image of Webview. I use two ways to do this:

NSBitmapImageRep *imgrep;
docView = [[[webview mainFrame] frameView] documentView];
1.
if ([docView lockFocusIfCanDraw]) {
imgrep = [[NSBitmapImageRep alloc]
initWithFocusedViewRect:[docView visibleRect]];
[docView unlockFocus];
}
2.
imgrep = [docView bitmapImageRepForCachingDisplayInRect:[docView visibleRect]];
[docView cacheDisplayInRect:[docView visibleRect] toBitmapImageRep:imgrep];

These 2 works fine when html page does NOT contain flash.To force
drawing flash onto the cached image, I modified the first one:
3.
if ([docView lockFocusIfCanDraw]) {
    [docView drawRect:[docView visibleRect]];
    NSArray * subViews = [docView subviews];
    for (int idx = 0; idx<[subViews count]; idx++) {
       NSView * subView = (NSView *)[subViews objectAtIndex:idx];
	[subView drawRect:[subView visibleRect]];
    }	
   [docView displayRect:[docView visibleRect]];
    imgrep = [[NSBitmapImageRep alloc]
initWithFocusedViewRect:[docView visibleRect]];
    [docView unlockFocus];
}

This code can work if safari with flash plugin versioin 7.0, but fail on 8.0.
Any one can help to test this and figure out some correct ways?

Regards,
Maciej

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