How to call another view controller's method from a view controller?

Hi,
Iam new to webdynpro . so pls clarify my doubt.
How to call another view controller's method from a view controller in the same Web Dynpro Component?
Thanks,
Krishna

Hi,
     The methods in a view are only accessible inside same view. you cannot call it outside the view or
     in any other view although its in same component.
     If you want to have a method in both views, then create the method in component controller and
     from there you can access the method any where in whole component.

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I am making an interface class between a C library and an objetive C application.
I have not problem calling function the C library from .mm funstions,
but I am having problems calling .m functions from the .mm class.
here is an example of what I mean.
here in my .m vector file
*struct dVector*
* float m_x;*
* float m_y;*
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*-(id) init;*
*-(void) dealloc;*
-(void) CreateBox: (Entity*) ent: (int) shapeId;*
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[code]-(void*) CreateBox: (Entity*) ent: (int) shapeId
struct dVector minBox;
struct dVector maxBox;
// this is fine
[ent GetBBox: &minBox: &maxBox];
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// this report a link errors, and I do no knwo why
struct dVector size = SubVector(&maxBox, &minBox);
struct dVector origin = AddVector (&maxBox, &minBox);
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return NewtonCreateBox ((NewtonWorld*) world, size.m_x, size.m_y, size.m_z, shapeId, &offset.mfront.mx);
I get these compiler errors
Building target “tutorial102AddingRigidBody” of project “newton_iPhone” with configuration “Debug_Emulation” — (3 errors)
cd /Users/juliojerez/Desktop/NewtonMac/NewtonSDK/newton_iPhone
setenv MACOSXDEPLOYMENTTARGET 10.5
setenv PATH "/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin:/Developer/usr /bin:/usr/bin:/bin:/usr/sbin:/sbin"
/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/g++-4.0 -arch i386 -isysroot /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator2.2 .1.sdk -L/Users/juliojerez/Desktop/NewtonMac/NewtonSDK/newtoniPhone/build/DebugEmulation-iphonesimulator -L/Users/juliojerez/Desktop/NewtonMac/NewtonSDK/newton_iPhone/../sdk -F/Users/juliojerez/Desktop/NewtonMac/NewtonSDK/newtoniPhone/build/DebugEmulation-iphonesimulator -filelist /Users/juliojerez/Desktop/NewtonMac/NewtonSDK/newtoniPhone/build/Debug_Emulation-iphonesimulator/tutorial_102_AddingRigidBody.build/ Objects-normal/i386/tutorial_102AddingRigidBodies.LinkFileList -mmacosx-version-min=10.5 -framework Foundation -framework UIKit -framework OpenGLES -framework QuartzCore -framework CoreGraphics -lnewton_iPhoneEmulation -o /Users/juliojerez/Desktop/NewtonMac/NewtonSDK/newtoniPhone/build/Debug_Emulation-iphonesimulator/tutorial_102_AddingRigidBodies.app/ tutorial_102AddingRigidBodies
Undefined symbols:
"AddVector(dVector*, dVector*)", referenced from:
-[iNewton CreateBox::] in iNewton.o
"SubVector(dVector*, dVector*)", referenced from:
-[iNewton CreateBox::] in iNewton.o
"Scale(dVector*, float)", referenced from:
-[iNewton CreateBox::] in iNewton.o
ld: symbol(s) not found
collect2: ld returned 1 exit status
"AddVector(dVector*, dVector*)", referenced from:
-[iNewton CreateBox::] in iNewton.o
"SubVector(dVector*, dVector*)", referenced from:
-[iNewton CreateBox::] in iNewton.o
"Scale(dVector*, float)", referenced from:
-[iNewton CreateBox::] in iNewton.o
ld: symbol(s) not found
collect2: ld returned 1 exit status
Build failed (3 errors)
Basically I can call objective C class methods from .mm files,
but I can not call functions who are not members of a class from .mm funtions.
Does any one knows how I can solve this?
I have two books on objective C and neither show how to do that.
Please I will apreciate if some one can help me with this.
Julio Jerez

julio jerez wrote:
// this is fine
[ent GetBBox: &minBox: &maxBox];
why will tha be wrong?
ent is a objective C class with a method GetBBox
wich I use in hundred of places with out problem.
Beside that is not the problem that.
Well, you've got me on this one. You are correct. Apparently you don't need to specify the parameter names. Still, I strongly encourage you to use parameter names. Even though they apparently aren't required, I've never seen them not used. I would have expected to see:
[ent GetBBoxMin: & minBox max: & maxBox]
The problem is calling C function that are declared in .m files.
if you read the errors, they are linking errors not compiler errors.
this is a C function that is declared in a .m file
struct dVector size = SubVector(&maxBox, &minBox);
beside I also use those functions in many other place as well in teh project and they work.
If it helps I can post a link to the a download place to the xcode project maybe it is eassy to see what I am trying to do.
That would probably be a good idea.
Normally, all you need is
extern "C"
but there is so much missing from what you've posted that I can't tell for sure what is going on.

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