C / C++ / MFC Discussion Boards

Re: GDI+

Naveen30-Oct-09 1:18

Naveen

30-Oct-09 1:18

__erfan__ wrote:
Unhandled exception at 0x00411761 in GdiPlusTest.exe: 0xC0000005: Access violation reading location

You have to initialize GDI+ before you make any GDI+ calls. check GdiplusStartup()[^] function

nave

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Re: GDI+

Randor 30-Oct-09 1:19

Randor

30-Oct-09 1:19

Hi,

Its because you have not called the GdiplusStartup Function[^]

Best Wishes,
-David Delaune

Re: GDI+

__erfan__30-Oct-09 1:32

__erfan__

30-Oct-09 1:32

thank you all.

Re: GDI+

CPallini30-Oct-09 1:40

CPallini

30-Oct-09 1:40

Looks like the missing initialization didn't pass unnoticed... Big Grin | :-D

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke

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Re: GDI+

Rajesh R Subramanian30-Oct-09 2:28

Rajesh R Subramanian

30-Oct-09 2:28

Hi,

Please mark the correct answers(s) that helped you by clicking "Good Answer". I've done it for you now.

“Follow your bliss.” – Joseph Campbell

Best way to convert char to hex string representation?

yeah100030-Oct-09 0:22

yeah1000

30-Oct-09 0:22

Hi,
i would like to know the best way to convert a char (e.g 'c') to its hex string representation (i.e 63) in c++ and save it to a file as such.

Re: Best way to convert char to hex string representation?

CPallini30-Oct-09 0:31

CPallini

30-Oct-09 0:31

fprintf(fp, "%02X ", 'c');

Re: Best way to convert char to hex string representation?

yeah100030-Oct-09 1:00

yeah1000

30-Oct-09 1:00

Thank you, but is there also a way to do it with ofstream or ostringstream?
So many streams are available, so confusing Smile | :)

Re: Best way to convert char to hex string representation?

CPallini30-Oct-09 1:11

CPallini

30-Oct-09 1:11

Naturellement!

#include <fstream>

void main()
{
  std::ofstream os;
  os.open("foo.txt");
  os.unsetf(std::ios_base::dec);
  os.setf(std::ios_base::hex);
  os << (int) 'c' << std::endl;
  os.close();
}

Re: Best way to convert char to hex string representation?

yeah100030-Oct-09 1:17

yeah1000

30-Oct-09 1:17

Thanks again, another problem came up though. The character has reinterpret_cast<char*> in front of it and then the address of the vector element. The reinterpret_cast should to my opininon put the char in correct format, but it wont come out right Frown | :(

Re: Best way to convert char to hex string representation?

CPallini30-Oct-09 1:18

CPallini

30-Oct-09 1:18

Could you please post sample code?
Smile | :)

Differentiating SHUTDOWN & RESTART?

Kushagra Tiwari30-Oct-09 0:20

Kushagra Tiwari

30-Oct-09 0:20

Is there any way to differentiate programmatically which event is occuring i.e shutdown or restart after catching WM_QUERYENDSESSION??

Regards,
Kushagra

Re: Differentiating SHUTDOWN & RESTART?

CPallini30-Oct-09 0:39

CPallini

30-Oct-09 0:39

See the 'competitor' [^]. Big Grin | :-D

Re: Differentiating SHUTDOWN & RESTART?

Kushagra Tiwari30-Oct-09 1:30

Kushagra Tiwari

30-Oct-09 1:30

Thanks Sir,

It surely will help Smile | :)

Kushagra

Re: Differentiating SHUTDOWN & RESTART?

David Crow30-Oct-09 4:31

David Crow

30-Oct-09 4:31

Kushagra Tiwari wrote:
It surely will help

Knowing how Windows was last shut down is helpful?

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Re: Differentiating SHUTDOWN & RESTART?

Kushagra Tiwari30-Oct-09 4:41

Kushagra Tiwari

30-Oct-09 4:41

DavidCrow wrote:
Knowing how Windows was last shut down is helpful?

Hi David,

Indeed it is helpful :

For eg:

User A pressed 'Restart' on the 'Shutdown Windows ' dialog. My application recieves WM_QUERYENDSESSION message and I return false (means I am temorarily delaying the shutdown) , but WM_QUERYENDSESSION never lets me differentiate between a 'Shutdown' & 'Restart'. Now, in this time after my application has completed its work it wants to continue with the operation that user chose then this registry value is one thing that lets me know whether the user tried 'Shutdown' or 'Restart', thus accordingly I can perform his desired operation Smile | :)

.

Regards
Kushagra
I hate coding but I luv to Develop

Re: Differentiating SHUTDOWN & RESTART?

David Crow30-Oct-09 4:44

David Crow

30-Oct-09 4:44

Have you verified that the registry is updated with the 'restart' flag even though no restart was performed?

Re: Differentiating SHUTDOWN & RESTART?

Kushagra Tiwari30-Oct-09 4:49

Kushagra Tiwari

30-Oct-09 4:49

Yes david .. It works perfectly fine .. I have verified it just now Smile | :)

Re: Differentiating SHUTDOWN & RESTART?

Kushagra Tiwari30-Oct-09 4:57

Kushagra Tiwari

30-Oct-09 4:57

Did you try to cross verify it ??

Re: Differentiating SHUTDOWN & RESTART?

David Crow30-Oct-09 4:59

David Crow

30-Oct-09 4:59

No, why would I?

Re: Differentiating SHUTDOWN & RESTART?

Kushagra Tiwari30-Oct-09 5:07

Kushagra Tiwari

30-Oct-09 5:07

I thought u must have tried it before, thats why u mast have asked the question of verifying.

Anyways , thanks for the help. Smile | :)

Kushagra

Software is not getting fully installed inside a folder with name "," (comma). Some of the files are missing

V K 229-Oct-09 23:14

V K 2

29-Oct-09 23:14

Hi,
Our software (our product) is not getting fully installed inside a folder with name "," (comma). I tried installing on a folder with name ";" (semi colon) then software got fully installed.

What could be the reason.

Thanks.

Re: Software is not getting fully installed inside a folder with name "," (comma). Some of the files are missing

CPallini29-Oct-09 23:26

CPallini

29-Oct-09 23:26

Well, the comma character is used as argument separator in many contexts (for instance in command line when running an application).
I would say it is not wise naming a folder that way. If you really need to deal with it then good luck.
Smile | :)

Message Loop - CCmdTarget(urgent)

Hari_1629-Oct-09 21:08

Hari_16

29-Oct-09 21:08

Hi All,

Why is that classes derived from CCmdTarget can alone handle messages???

Any reasons...........

Thanks,
Hari

Re: Message Loop - CCmdTarget(urgent)

Adam Roderick J29-Oct-09 21:54

Adam Roderick J

29-Oct-09 21:54

Refer it to know why. [^]

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