By Using Mapping modes how to draw points in a rectangle? - C / C++ / MFC Discussion Boards

Mark Salsbery22-Aug-08 5:22

22-Aug-08 5:22

I don't know about tutorials, but it generally comes
down to looking up the published file format and parsing the
file appropriately.

Examples:
BMP[^]
PNG[^]
TGA[^]
RAW = Google "RAW file format"...there's lots of raw formats.

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

Re: Loading Bmp, Png, Tga, Raw

led mike22-Aug-08 5:39

led mike

22-Aug-08 5:39

Mark Salsbery wrote:
I don't know about tutorials, but it generally comes
down to looking up the published file format and parsing the
file appropriately.

or when one can't figure out one needs to do that, perhaps one should start by reading the McDonalds menu. Beer | [beer]

led mike

Re: Loading Bmp, Png, Tga, Raw

David Crow22-Aug-08 8:17

David Crow

22-Aug-08 8:17

Hey, that would imply that they should consider changing...

Ahhh never mind. D'Oh! | :doh:

"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: Loading Bmp, Png, Tga, Raw

Nuri Ismail22-Aug-08 5:50

Nuri Ismail

22-Aug-08 5:50

You can also use GDI+ for loading images. Here are some examples:

http://www.codeproject.com/KB/cpp/GDI_.aspx[^]

http://www.codeproject.com/KB/GDI-plus/GdiPThumbnailsViewer.aspx[^]

If you don't want to use GDI+, than you can try CxImage library:

http://www.codeproject.com/KB/graphics/cximage.aspx[^]

It's really very cool library that can help you to get information about loading images.

Re: Loading Bmp, Png, Tga, Raw

Hamid_RT22-Aug-08 6:50

Hamid_RT

22-Aug-08 6:50

For bmp,png,gif,jpeg and I think tiff you can use of CImage class But onthe codeproject you can see CXImage article is very helpful for you.

Re: Loading Bmp, Png, Tga, Raw

CrocodileBuck22-Aug-08 23:08

CrocodileBuck

22-Aug-08 23:08

Thanx for all your help,
i hope i can figure it out now Wink | ;)

Many thanks & Best regards
Laugh | :laugh:

Croc

Re: Loading Bmp, Png, Tga, Raw

Hamid_RT23-Aug-08 23:41

Hamid_RT

23-Aug-08 23:41

I glad our answers were helpful for you. Smile | :)

By Using Mapping modes how to draw points in a rectangle?

pallaka22-Aug-08 4:52

pallaka

22-Aug-08 4:52

Hi,
I am having a rectangle.
I need to create a graph by setting x axis -80 to 80 and y axis -80 to 80.
Means the BottomLeft of the rectangle will be (-80,-80); and top will be (80,80).
By using mapping modes MM_ANISTROPIC.
I need to draw a point if suppose a point is (-75,60).
Then the point should be drawn in the rectangle.

Thanks in advance.

Re: By Using Mapping modes how to draw points in a rectangle?

led mike22-Aug-08 5:40

led mike

22-Aug-08 5:40

pallaka wrote:
I am having a rectangle.

Congratulations. How exciting for you.

led mike

Re: By Using Mapping modes how to draw points in a rectangle?

pallaka22-Aug-08 5:45

pallaka

22-Aug-08 5:45

Hi,
If you can not give answer then keep quite.
But it will great if you giv atleast a hint to a solution

Re: By Using Mapping modes how to draw points in a rectangle?

led mike22-Aug-08 6:40

led mike

22-Aug-08 6:40

pallaka wrote:
If you can not give answer then keep quite.

No I won't. Now what are going to do?

pallaka wrote:
But it will great if you giv atleast a hint to a solution

Sure no problem. Think first then write code then observe the results. Now repeat as many times as necessary.

led mike

Re: By Using Mapping modes how to draw points in a rectangle?

Mark Salsbery22-Aug-08 6:14

Mark Salsbery

22-Aug-08 6:14

Yeah - keep quite. Roll eyes | :rolleyes:

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

Re: By Using Mapping modes how to draw points in a rectangle?

led mike22-Aug-08 6:41

led mike

22-Aug-08 6:41

Mark Salsbery wrote:
Yeah - keep quite.

What? You can hear me typing? $Shucks | :-\$

led mike

Convert CString to char*

USAFHokie8022-Aug-08 4:04

USAFHokie80

22-Aug-08 4:04

I'm trying to find an easy way to convert a CString to a char* without having to do it character-by-character.

I've tried memcpy unsuccessfully. Anyone have any tricks?

Re: Convert CString to char*

toxcct22-Aug-08 4:09

toxcct

22-Aug-08 4:09

CString provides a (LPCTSTR) cast operator for this.BTW, what are you trying to achieve ?

can't you just use CString::operator[]() or CString::GetAt() to retrieve a character in the CString object ?

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Re: Convert CString to char*

USAFHokie8022-Aug-08 4:13

USAFHokie80

22-Aug-08 4:13

I want to get the entire string into a char array in case I can't figure out how to do something else.

Re: Convert CString to char*

super_ttd22-Aug-08 5:05

super_ttd

22-Aug-08 5:05

I believe toxcct meant "what do you want to do that for ?"

Re: Convert CString to char*

toxcct22-Aug-08 5:13

toxcct

22-Aug-08 5:13

super_ttd wrote:
what do you want to do that for ?

exactly.

As I am suspecting the OP to have asked this for a darken reason, I'm not sure casting the CString object would be worth it...

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Re: Convert CString to char*

Perspx22-Aug-08 4:13

Perspx

22-Aug-08 4:13

This thread may be of use.

Regards,
--Perspx

"The Blue Screen of Death, also known as The Blue Screen of Doom, the "Blue Screen of Fun", "Phatul Exception: The WRECKening" and "Windows Vista", is a multi award-winning game first developed in 1995 by Microsoft" - Uncyclopedia

Introduction to Object-Oriented JavaScript

Re: Convert CString to char*

USAFHokie8022-Aug-08 4:16

USAFHokie80

22-Aug-08 4:16

You rock.

Re: Convert CString to char*

toxcct22-Aug-08 5:10

toxcct

22-Aug-08 5:10

USAFHokie80 wrote:
You rock

Probably, but certainly not on this post...

please read my answer to him[^]

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Re: Convert CString to char*

toxcct22-Aug-08 5:09

toxcct

22-Aug-08 5:09

NO, definitely not !
GetBuffer() is not there for casting purpose !
Moreover, the OP seem not to really know what he wants that for, so instead of saying amen to a query-for-code, better understand why such a thing is asked for...

I'm more likely to think he's trying to iterate on every characters of the string, so no need for cast for this ; a simple use of the [] operator would do !

BTW, I'm almost certain that Roger Allen (which is also a great codeproject member) would not reply so nowadays... notice that he replied so, but it was in year 2000 !

at last, read this[^] and tell me if you see somewhere in Microsoft recomendations to use GetBuffer().

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modified on Friday, August 22, 2008 11:16 AM

Re: Convert CString to char*

Perspx22-Aug-08 5:18

Perspx

22-Aug-08 5:18

I was merely posting a link to a thread that was of the same subject - I was not involved with any of those thread posts I thought it would be helpful to USAFHokie80 here..

Regards,
--Perspx

Re: Convert CString to char*

USAFHokie8022-Aug-08 5:34

USAFHokie80

22-Aug-08 5:34

Yeah... GetBuffer doesn't work.

But this works:

char* str = (char*)(LPCTSTR)str2

Re: Convert CString to char*

toxcct22-Aug-08 6:16

toxcct

22-Aug-08 6:16

USAFHokie80 wrote:
Yeah... GetBuffer doesn't work.

hum, correction : GetBuffer DOES work, but it's not there for that. Poke tongue | ;-P

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