Re: The correct answer is - C / C++ / MFC Discussion Boards

Bernaad3-Sep-08 23:24

3-Sep-08 23:24

what is difference between "StretchBlt and BitBlt".

If i am try to zoom in the image in SDI application (in Visual Studio 2008) through bitBlt, the image is not zooming. Same code i just replace the "StretchBlt" instead of "BitBlt" then the image in the window is zooming correctly.

could anyone explain why it happen.

Re: Problem in zooming the image.

SandipG 3-Sep-08 23:31

SandipG

3-Sep-08 23:31

from documentation

StretchBlt

The StretchBlt function copies a bitmap from a source rectangle into a destination rectangle, stretching or compressing the bitmap to fit the dimensions of the destination rectangle, if necessary. The system stretches or compresses the bitmap according to the stretching mode currently set in the destination device context.

BitBlt

The BitBlt function performs a bit-block transfer of the color data corresponding to a rectangle of pixels from the specified source device context into a destination device context.

I hope it helps.

Regards,
Sandip.

Re: Problem in zooming the image.

Bernaad3-Sep-08 23:51

Bernaad

3-Sep-08 23:51

Hi ,
So it is not possible to zoom the image through BitBlt in mfc 9.0 ?

Re: Problem in zooming the image.

SandipG 3-Sep-08 23:55

SandipG

3-Sep-08 23:55

Why you don't want to use StretchBlt.
I dont think it is possible to zoom with BitBlt.

Regards,
Sandip.

Re: Problem in zooming the image.

Bernaad4-Sep-08 0:12

Bernaad

4-Sep-08 0:12

i am thinking of performance(both execution and memory). In performance wish which is best?.

In vc++ 6.0 i am using the BitBlt to zoom the image, but in vc++ 9.0 (mfc 9.0) i am not able to zoom the image through bitblt.

so i need to use stretchBlt to zoom the image in mfc 9.0?.

Thanks your reply.

Re: Problem in zooming the image.

Mark Salsbery4-Sep-08 5:24

Mark Salsbery

4-Sep-08 5:24

Bernaad wrote:
In vc++ 6.0 i am using the BitBlt to zoom the image,

How? BitBlt doesn't have any parameters to change the destination size.

BitBlt hasn't changed since way before VC6...

Mark

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

怎么取得当前使用的计算机的用户名呢

alphaxz3-Sep-08 23:19

alphaxz

3-Sep-08 23:19

大家好!
怎么取得当前使用的计算机的用户名呢?

a beginner

Re: The correct answer is

Rajesh R Subramanian3-Sep-08 23:20

Rajesh R Subramanian

3-Sep-08 23:20

大家取得取得!!!

Many are stubborn in pursuit of the path they have chosen, few in pursuit of the goal - Friedrich Nietzsche

.·´¯`·->Rajesh<-·´¯`·.
[Microsoft MVP - Visual C++]

Re: YOU LOOSER

toxcct3-Sep-08 23:26

toxcct

3-Sep-08 23:26

dick head, we speak english here (if you hadn't notice yet)...

BTW, have you seen this[^] ??

[VisualCalc][Binary Guide][CommDialogs] | [Forums Guidelines]

Re: YOU LOOSER

alphaxz3-Sep-08 23:43

alphaxz

3-Sep-08 23:43

sorry ,I forgot

i want to know how can i get current user who is using the computyer 's name by API

a beginner

Re: YOU LOOSER

SandipG 3-Sep-08 23:46

SandipG

3-Sep-08 23:46

Read this thread Get Current User Name[^]

Regards,
Sandip.

Re: YOU LOOSER

ThatsAlok3-Sep-08 23:51

ThatsAlok

3-Sep-08 23:51

GetComputerName()

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow
Never mind - my own stupidity is the source of every "problem" - Mixture

cheers,
Alok Gupta
VC Forum Q&A :- I/IV
Support CRY- Child Relief and You/xml>

Re: YOU LOOSER

David Crow4-Sep-08 3:49

David Crow

4-Sep-08 3:49

Which is completely different than GetUserName().

"Love people and use things, not love things and use people." - Unknown

"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch

Re: YOU LOOSER

toxcct4-Sep-08 0:43

toxcct

4-Sep-08 0:43

and i already replied to you with this link[^] Suspicious | :suss:

[VisualCalc][Binary Guide][CommDialogs] | [Forums Guidelines]

Re: YOU LOOSER

Mark Salsbery4-Sep-08 5:25

Mark Salsbery

4-Sep-08 5:25

When calling someone a loser, it's VERY important to
spell it right. Unless, of course, you meant "looser"...

Poke tongue | ;-P

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Re: YOU LOOSER

toxcct4-Sep-08 5:29

toxcct

4-Sep-08 5:29

nope, i meant "Loooooooooooser"... get it ? Roll eyes | :rolleyes:

[VisualCalc][Binary Guide][CommDialogs] | [Forums Guidelines]

Re: YOU LOOSER

Mark Salsbery4-Sep-08 5:51

Mark Salsbery

4-Sep-08 5:51

I don't get it. Get it?

Loooooooooser is much better.

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Re: 怎么取得当前使用的计算机的用户名呢

ThatsAlok3-Sep-08 23:50

ThatsAlok

3-Sep-08 23:50

can that be in english?

cheers,
Alok Gupta
VC Forum Q&A :- I/IV
Support CRY- Child Relief and You/xml>

Re: 怎么取得当前使用的计算机的用户名呢

Rajesh R Subramanian3-Sep-08 23:58

Rajesh R Subramanian

3-Sep-08 23:58

ThatsAlok wrote:
can that be in english?

No, it will not be. MVPs should get directly in the person's soul and retrieve the question.[^] Poke tongue | ;-P

See archivist.

Many are stubborn in pursuit of the path they have chosen, few in pursuit of the goal - Friedrich Nietzsche

.·´¯`·->Rajesh<-·´¯`·.
[Microsoft MVP - Visual C++]

Re: 怎么取得当前使用的计算机的用户名呢

ThatsAlok4-Sep-08 1:51

ThatsAlok

4-Sep-08 1:51

Rajesh R Subramanian wrote:

No, it will not be. MVPs should get directly in the person's soul and retrieve the question.[^]

actaully i given that power to you for sometime.. that's why you are so active Poke tongue | ;-P

cheers,
Alok Gupta
VC Forum Q&A :- I/IV
Support CRY- Child Relief and You/xml>

Re: 怎么取得当前使用的计算机的用户名呢

Jijo.Raj4-Sep-08 2:54

Jijo.Raj

4-Sep-08 2:54

alphaxz wrote:
大家好!
怎么取得当前使用的计算机的用户名呢?

Google translation says -

Good! 
How to use the current computer user name?

You could use the function - NetWkstaUserGetInfo(). For code snippet - check here[^].

Translation
您可以使用的功能- Netwkstausergetinfo（）。为程式码片段-检查在这里。

Well, please do not post questions in native language. Because those who can read it may not be able to answer it and those who can answer it may not be able to read it. Wink | ;)