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jagannathan thiruvengadathan wrote: Hello
I have developed an application, which load the Bitmap Image as texture using openGL. My question is, how to zoom a particular point of an image when i click using the mouse left button. Will any body help by providing the suitable source code or Link , so that it help me a lot
I am using VC++ ( MFC's MDI ) and OpenGL .
Regards
Jagannathan
I had a similar problem when writing Clear Focus. I had to write code to reverse the OpenGL transform to convert a point on the screen to a ray in the 3D model. Then I used simple ray tracing to find which point on the 3D model I was pointing to. It helped to provide a marker object (in my case, just a glPoint) that always follows the mouse pointer so that you can see which point you'll be clicking.
Nathan
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Hello...
I am using DOM for XML parsing.Size of XML is not too much it is 2 Mb at the max.but structure is much complecated.
Parsing & Reading XML functions are taking too much time.
please tell me how can I Parse & Read the XML faster.
please help me... 
Thanks
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Rahul Vaishnav wrote: please tell me how can I Parse & Read the XML faster.
look for other parser like tinyxml ! or might be you have to optimize your code!
"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/codeProject$$>
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Hi,
I wanted to draw an image with an angle
____
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----
to
. ____
. / / /
/ / /
----
Is it possible using Graphics.DrawImage()?
How will I do it?
Please comment.
Thank you.
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In the code below '(a.ptrToFun)()' function call gives syntax error where as '(a.*ptr)()' doesnot.
Can someone explain what the problem is?
class A
{
public:
void AFun(){ cout<<"A Fun"<<endl; }
void (A::*ptrToFun) ();
};
int main()
{
A a;
a.ptrToFun = a.AFun;
(a.ptrToFun)();
void (A::*ptr) ();
ptr = a.ptrToFun;
(a.*ptr)();
return 0;
}
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Well, if you know the correct syntax, and you get the right functionality, then there isn't really any problem.
Pointers to member functions have complex syntax.
Feel proud you've mastered it, and move on.
Iain.
Iain Clarke appears because CPallini still cares.
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Can you please give the right syntax and explain why it is so?
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Didn't you already work out the correct syntax for yourself? You're better placed to help *me* now.
Iain.
Iain Clarke appears because CPallini still cares.
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yes , I got the syntax. The syntax is (a.*(a.ptrfun))(). But i am not able to understand why this is so complex? If you have any explanation for this, kindly reply.
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Let me have a try... 
(a.*(a.pF))()
Maxwell Chen
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(a.*ptr)() means "take the object a and the method pointed to by ptr, then call that method using a as this". The "use a as this" part is where the complexity comes from. You can't just call ptr() because you haven't said which object to use as this.
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Hi,
If I select any file on window desktop or from any where in windows explorer then how can I get the selected file path?
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pther wrote: If I select any file...in windows explorer then how can I get the selected file path?
Right-click the file and select Properties.
"Normal is getting dressed in clothes that you buy for work and driving through traffic in a car that you are still paying for, in order to get to the job you need to pay for the clothes and the car and the house you leave vacant all day so you can afford to live in it." - Ellen Goodman
"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne
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I want to achive this through programming.
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Read Michael Dunn's articles on shell extensions.
"Normal is getting dressed in clothes that you buy for work and driving through traffic in a car that you are still paying for, in order to get to the job you need to pay for the clothes and the car and the house you leave vacant all day so you can afford to live in it." - Ellen Goodman
"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne
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Hi,
How can I select all item of ListView?
I used :
for(int i=0;i<ListCtrl.GetItemCount();i++)
ListCtrl.SetSelectionMark(i);
But it do not show the selection color.
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Hi pther.
Try as below
ListCtrl.SetItemState(-1, LVIS_SELECTED, LVIS_SELECTED);
The -1 that is first parameter is meaning that all items is applied.
Bye.
modified on Wednesday, March 12, 2008 4:11 AM
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can u please tell how to add a menu in cximage that is in demo.exe file
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what is cximage  ? I have used Search to look for demo.exe but it reads "search is complete. no result to display" 
Wamuti: Any man can be an island, but islands to need water around them!
Edmund Burke: No one could make a greater mistake than he who did nothing because he could do only a little.
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I know cximage is a class for handling, um, images that is published in an article on this website.
Do you want to add a menu to the demo application that probably comes with that that article? Then you would add it in the same way you do to any other application.
If that is a struggle (and it was for all of us at some point), then use the appwizard to make a plain SDI app (or MDI), and see how it is different from the application you have.
Or ask on thr CXImage article page for more specific help.
Iain.
Iain Clarke appears because CPallini still cares.
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create a new demo dude or ask the question in the forums situated at the of article!
"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/codeProject$$>
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