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Home » U++ Library support » U++ Widgets - General questions or Mixed problems » Taking snapshot of GLCtrl no longer works

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Re: Taking snapshot of GLCtrl no longer works [message #52222 is a reply to message #52221]

Mon, 12 August 2019 07:42

Tom1
Messages: 1305
Registered: March 2007

Ultimate Contributor

Hi Koldo,

Have you tried to call 'glGetError()' just before taking the snapshot? This would clear any errors prior to calling 'glReadPixels()'. Since you can get the actual snapshot done, it does not sound logical the 'glReadPixels()' would be the one to fail with GL_INVALID_OPERATION. (Just for reference, I do not get GL_INVALID_OPERATION here. Running on latest Windows 10 x64 with Intel Core i9 integrated graphics.)

Best regards,

Tom

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[Message index]

		Taking snapshot of GLCtrl no longer works By: Tom1 on Mon, 05 August 2019 12:20
		Re: Taking snapshot of GLCtrl no longer works By: Tom1 on Wed, 07 August 2019 14:50
		Re: Taking snapshot of GLCtrl no longer works By: Tom1 on Wed, 07 August 2019 16:45
		Re: Taking snapshot of GLCtrl no longer works By: mirek on Fri, 09 August 2019 09:13
		Re: Taking snapshot of GLCtrl no longer works By: mirek on Fri, 09 August 2019 09:26
		Re: Taking snapshot of GLCtrl no longer works By: Tom1 on Fri, 09 August 2019 11:00
		Re: Taking snapshot of GLCtrl no longer works By: Tom1 on Fri, 09 August 2019 14:00
		Re: Taking snapshot of GLCtrl no longer works By: mirek on Fri, 09 August 2019 16:29
		Re: Taking snapshot of GLCtrl no longer works By: Tom1 on Mon, 12 August 2019 08:52
		Re: Taking snapshot of GLCtrl no longer works By: koldo on Sun, 11 August 2019 18:45
		Re: Taking snapshot of GLCtrl no longer works By: Tom1 on Mon, 12 August 2019 07:42
		Re: Taking snapshot of GLCtrl no longer works By: koldo on Mon, 12 August 2019 16:00
		Re: Taking snapshot of GLCtrl no longer works By: mirek on Mon, 12 August 2019 21:50
		Re: Taking snapshot of GLCtrl no longer works By: Tom1 on Tue, 13 August 2019 09:07

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