U++ framework: U++ Widgets - General questions or Mixed problems » Taking snapshot of GLCtrl no longer works

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Taking snapshot of GLCtrl no longer works [message #52184]

Mon, 05 August 2019 12:20

Tom1
Messages: 1319
Registered: March 2007

Ultimate Contributor

Hi,

I have not worked with GLCtrl for a while. Now as I tried to recompile my old program, I found out that my code taking snapshot of the GLCtrl contents no longer works. It just returns a black image:

		Size sz=GetSize();
		ImageBuffer ib(sz);
		glReadPixels(0,0,sz.cx,sz.cy,GL_BGRA_EXT,GL_UNSIGNED_BYTE,(GLvoid*)(RGBA*)ib);

Any suggestions how to proceed?

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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