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GDI question :- Which is faster? Nish Nishant8-Jun-02 1:20 Nish Nishant 8-Jun-02 1:20  Right now I am creating a compatible DC and drawing directly into it using LineTo() and MoveTo() Then I BitBlt it into the actual CDC But for a few nasty nano-seconds I can see the original background Is there any way to speed up things? There is a pretty heavy loop with some maths calculations and stuff. Would it be faster to directly draw onto the CDC? Regards Nish Author of the romantic comedy Summer Love and Some more Cricket [New Win] Buy it, read it and admire me Re: GDI question :- Which is faster? Christian Graus8-Jun-02 1:29 Christian Graus 8-Jun-02 1:29  You need to draw in OnEraseDC, then you won't see it. Christian I am completely intolerant of stupidity. Stupidity is, of course, anything that doesn't conform to my way of thinking. - Jamie Hale - 29/05/2002 Re: GDI question :- Which is faster? Nish Nishant8-Jun-02 1:26 Nish Nishant 8-Jun-02 1:26  Christian Graus wrote: OnEraseDC, Oh! My code is now in OnEraseBkgnd() Nish Author of the romantic comedy Summer Love and Some more Cricket [New Win] Buy it, read it and admire me Re: GDI question :- Which is faster? Nish Nishant8-Jun-02 1:27 Nish Nishant 8-Jun-02 1:27  Blast!!!! I can't find OnEraseDC() I tried all sorts of message filters Nish Author of the romantic comedy Summer Love and Some more Cricket [New Win] Buy it, read it and admire me found a solution Nish Nishant8-Jun-02 1:47 Nish Nishant 8-Jun-02 1:47  First of all where is CG? he made me waste 15 minutes searching MSDN/Google etc. for a non-existant message and message handler OnEraseDC() my right foot!!!!!!!!!!!! okay, now that, that's over, this is what I did I added a CBitmap member and I draw my stuff onto this bitmap. Thus during OnEraseBkgnd I simply use BitBlt to put this bitmap onto our CDC Nice eh? Donno if there are any hidden loopholes I am just beginning this stuff, you see. My GDI awareness is just two days old - started this week Nish Author of the romantic comedy Summer Love and Some more Cricket [New Win] Buy it, read it and admire me Re: found a solution Christian Graus8-Jun-02 1:54 Christian Graus 8-Jun-02 1:54  Sorry - I am watching 'The Others' and just came by and saw the question. OnEraseBkgnd is right. My GDI is rusty too. Christian I am completely intolerant of stupidity. Stupidity is, of course, anything that doesn't conform to my way of thinking. - Jamie Hale - 29/05/2002 Re: found a solution Nish Nishant8-Jun-02 4:27 Nish Nishant 8-Jun-02 4:27  Christian Graus wrote: Sorry - I am watching 'The Others' and just came by and saw the question Now fancy that! The nice man was watching "The Others" and just came by and seeing the question thought it'd be really nice to lead the guy onto a wild goose chase looking for a non-existant function! Nish Author of the romantic comedy Summer Love and Some more Cricket [New Win] Buy it, read it and admire me Re: found a solution Jason Henderson8-Jun-02 17:52 Jason Henderson 8-Jun-02 17:52  MSDN should have a good example under the bitblt definition. Like it or not, I'm right. Re: found a solution Nish Nishant8-Jun-02 17:54 Nish Nishant 8-Jun-02 17:54  Jason Henderson wrote: MSDN should have a good example under the bitblt definition. Mine is MSDN 6a. Nish Author of the romantic comedy Summer Love and Some more Cricket [New Win] Buy it, read it and admire me BitBlt issue with CPaintDC :-( Nish Nishant8-Jun-02 0:53 Nish Nishant 8-Jun-02 0:53  CPaintDC dc(this); CRect rect; GetClientRect(&rect); CDC dc2; dc2.CreateCompatibleDC(&dc); dc2.FillSolidRect(0,0,100,100,RGB(0,0,127)); dc.BitBlt(0,0,rect.Width(),rect.Height(),&dc2,0,0,SRCCOPY); CDialog::OnPaint(); Nothing happens Why is the BitBlt failing? If I comment out the BitBlt line and call FillSolidRect directly on dc it works Nish Author of the romantic comedy Summer Love and Some more Cricket [New Win] Buy it, read it and admire me Was too hasty :-) Nish Nishant8-Jun-02 1:08 Nish Nishant 8-Jun-02 1:08  For this BitBlt thing to work you have to select a compatible bitmap into the source dc Nish Author of the romantic comedy Summer Love and Some more Cricket [New Win] Buy it, read it and admire me CreateCompatibleDC problem Nish Nishant8-Jun-02 0:15 Nish Nishant 8-Jun-02 0:15  When I try to use CreateCompatibleDC on a CPaintDC I get an Debug-Assertion Nish Author of the romantic comedy Summer Love and Some more Cricket [New Win] Buy it, read it and admire me Re: CreateCompatibleDC problem Anders Molin8-Jun-02 0:17 Anders Molin 8-Jun-02 0:17  Let's see some code... How do you do it? - Anders Money talks, but all mine ever says is "Goodbye!" Re: CreateCompatibleDC problem Nish Nishant8-Jun-02 0:23 Nish Nishant 8-Jun-02 0:23  Anders Molin wrote: Let's see some code... How do you do it? CPaintDC dc(this); CDC dc2; dc.CreateCompatibleDC(&dc2); //asserts here :-( This is inside CDialog::OnPaint() Author of the romantic comedy Summer Love and Some more Cricket [New Win] Buy it, read it and admire me I was stupid :-O Nish Nishant8-Jun-02 0:28 Nish Nishant 8-Jun-02 0:28  Anders I was so stupid It should have been :- dc2.CreateCompatibleDC(&dc); Nish Author of the romantic comedy Summer Love and Some more Cricket [New Win] Buy it, read it and admire me Re: I was stupid :-O Anders Molin8-Jun-02 0:34 Anders Molin 8-Jun-02 0:34  Woops, I didn't see either. - Anders Money talks, but all mine ever says is "Goodbye!" How ot Change a Window's Title When it is Created? windcbf7-Jun-02 21:08 windcbf 7-Jun-02 21:08  Let All the Windows' Title Set by My Presetting String when they Created. In simple words, I want to make all windows display the same title. Some may say that it can be done by enumwindow() and setwindowtext(), but how can I know when a new window is created and I set the title in time? Are there any other method existing ??? Who can do it? Re: How ot Change a Window's Title When it is Created? Christian Graus7-Jun-02 21:18 Christian Graus 7-Jun-02 21:18  Why ask the same question again, you've had the answer. The real question is, why would you want to do something so stupid ? Christian I am completely intolerant of stupidity. Stupidity is, of course, anything that doesn't conform to my way of thinking. - Jamie Hale - 29/05/2002 Re: How ot Change a Window's Title When it is Created? Nish Nishant7-Jun-02 21:30 Nish Nishant 7-Jun-02 21:30  Christian Graus wrote: The real question is, why would you want to do something so stupid ? I think there is this new trend of making high performance annoyance applications. They have a big market nowadays Nish Author of the romantic comedy Summer Love and Some more Cricket [New Win] Buy it, read it and admire me Re: How ot Change a Window's Title When it is Created? windcbf7-Jun-02 21:30 windcbf 7-Jun-02 21:30  I am very intrested in UI programming ,so I am just to try something intresting .... Re: How ot Change a Window's Title When it is Created? Christian Graus7-Jun-02 21:43 Christian Graus 7-Jun-02 21:43  The system does not support it beyond the ways we have suggested because it is a dumb thing to do. Why not try to learn how to do something useful ? Christian I am completely intolerant of stupidity. Stupidity is, of course, anything that doesn't conform to my way of thinking. - Jamie Hale - 29/05/2002 Re: How ot Change a Window's Title When it is Created? Rama Krishna Vavilala8-Jun-02 3:52 Rama Krishna Vavilala 8-Jun-02 3:52  Christian Graus wrote: why would you want to do something so stupid ? Amazing to see that people are full of ideas like this. Re: How ot Change a Window's Title When it is Created? Michael Dunn7-Jun-02 21:43 Michael Dunn 7-Jun-02 21:43  Call SetWindowsHookEx() and set a CBT hook. You'll get notified as each window is created. --Mike-- Just released - RightClick-Encrypt - Adds fast & easy file encryption to Explorer Like the Google toolbar? Then check out UltraBar, with more features & customizable search engines! My really out-of-date homepage Sonork-100.19012 Acid_Helm CListCtrl in Dialog Box & Select :: MFC valikac7-Jun-02 20:11 valikac 7-Jun-02 20:11  Hi. I started out using a CListBox in a dialog box. However, I wanted to add a grid feature, so I posted a message about how to add a grid to it. I found out the only way is to use a CListCtrl. I implemented a CListCtrl in place of the CListBox. There is one problem. I cannot get it to return a selected item or the selected items. There are no getseltime or getselitemindex. How do you determine what item a user selects in a CListCtrl? Thanks, Kuphryn Re: CListCtrl in Dialog Box & Select :: MFC Michael Dunn7-Jun-02 20:35 Michael Dunn 7-Jun-02 20:35  Look up CListCtrl::GetFirstSelectedItemPosition() and CListCtrl::GetNextSelectedItem(). --Mike-- Just released - RightClick-Encrypt - Adds fast & easy file encryption to Explorer Like the Google toolbar? Then check out UltraBar, with more features & customizable search engines! My really out-of-date homepage Sonork-100.19012 Acid_Helm

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