Comments by Member 11287295

Member 11287295 6-May-15 15:25pm View

I do understand the nature of the problem, and that's what actually bugs me. I'm doing everything necessary to avoid intermediate drawcalls, everything handled inside the WM_PAINT uses a backbuffer. Do you see any errors in the actual implementation of the double buffering?
Also i'd like to mention i'm not working with images/bitmaps. Everything is drawn with gdi/gdi+, and in no place i'm actually issuing a "white" redraw that may possibly cause said flicker. I'm a bit lost here

Member 11287295 5-May-15 19:24pm View

Deleted

I do understand the nature of the problem, and that's what actually bugs me. I'm doing everything necessary to avoid intermediate drawcalls, everything handled inside the WM_PAINT uses a backbuffer. Do you see any errors in the actual implementation of the double buffering?
Also i'd like to mention i'm not working with images/bitmaps. Everything is drawn with gdi/gdi+, and in no place i'm actually issuing a "white" redraw that may possibly cause said flicker. I'm a bit lost here

Member 11287295 5-May-15 18:55pm View

Indeed I really screwd up something. I was including the header with brackets. Thanks anyway

Member 11287295 2-May-15 17:59pm View

I don't think I really screw up anything, I just created a plain new empty project and selected DLL from the options, the .cpp file has really nothing inside except a single include statement where I try to include the only header created. It gives an intellisense error, which disappears after including stdafx.h. As I said, and i'm just trying to understand what's the reason behind this, since It never happened with other kind of projects

Member 11287295 28-Jan-15 8:04am View

So I deleted the namespace and called the function with the "MyMathFuncs::Add" string. Obviously I still got nothing out of it and it's unclear to me how am I supposed to convert the undecorated void __stdcall b::c(float){}; function to :
?c@b@@AAGXM@Z

Member 11287295 17-Dec-14 19:59pm View

And that's what programming is about, losing hours (many) of your day to find out a semicolon drove you crazy. Thanks a lot

Member 11287295 12-Dec-14 12:02pm View

It's the first line of code of the question :

Bitmap bmp(100, 100, PixelFormat32bppARGB);

Actually I know the procedure to display bitmaps the whole purpose of the question is why this particular case doesn't work

Member 11287295 12-Dec-14 11:49am View

I assume you're loading a picture from a file, which is not what i'm trying to do. I need to create variable in size bitmaps on runtime

Member 11287295 12-Dec-14 11:23am View

Doesn't work either way, that's why I'm thinking you cannot create a bitmap with that constructor, but I can't see no example online on how to create a gdi+ bitmap on runtime

Member 11287295 7-Dec-14 20:10pm View

I finally found a way to make it work, the current process token needs to obtain the SeDebugPriviledges, it now returns only 2-3 access denied failures and the infamous first process which as you said could be OS-related.
I'll call it success for now and be just happy with it, thanks for your help

Member 11287295 7-Dec-14 18:20pm View

Using your code now retrieves 54 processes (I guess it's the legit number of all running processes) the first process always fail with errorcode 87 -invalid parameter, 10 fails on enumProcessModules with error 299 and almost 38 fails with error code 5 : access denied, I get the same exact output if i'm giving admin rights or not, i'm directly running it as administrator (and I'm actually the computer Administrator)

EDIT: I'm not using MFC but plain winAPI, compiled in 64bit gives off more results, but I still see 25+ processes failing with access denied and the first process failing with error 87

Member 11287295 5-Dec-14 20:25pm View

you're right, I absolutely have to keep an eye on errors of this kind

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