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Re: trouble with tabs [message #52470 is a reply to message #52462]

Fri, 04 October 2019 00:04

mtdew3q
Messages: 181
Registered: July 2010
Location: Upstate, NY (near Canada)

Experienced Member

Hi Koldo-

I outlined 2 examples to illustrate my confusion.

I hope you can now see what I am doing wrong.

Example 1:

 int func(int a) {
   // cout << "Hello" << a << '\n';
   return 2;
}

  struct CantonEdu : public WithRooLayout<TopWindow> {
	 WithQueryLayout<TopWindow> query;

class functions..
class members...



void CantonEdu::ManageMenus(int n);
Button b1;
TabCtrl tab1 // defined in layout
int func(int a);

typedef CantonEdu CLASSNAME;
 };

 
    int (& r_ref)(int) = func;
Add ( b1.LeftPos ( 10, 100 ).BottomPos ( 10, 30 ) );
	b1.SetLabel ( "Click me!" );
	b1 <<= THISBACK ( r_ref, 1 ) ; /** thisback and r_ref not agreeing in this scope (GUI)  **/

b1 and r_ref not in same scope.

Example 2:

 tab1.WhenSet = [&]  {
    
	    int n = tab1.Get();  // compiles
	    ManageMenus(n);  // compiles
	 
		};

void CantonEdu::ManageMenus(int n) {
PromptOK( " " + n): // (blank PromptOk - empty value)
}

n does not equal index of recently clicked tab

I'd like to be able thisback to call function with these parameters as well: void ManageMenus (TabCTRL tab1, MenuBar menu).
tab1.WhenSet =THISBACK(ManageMenus,tab1, menu);

NOTE: I mean to indicate a function reference that points to function like:

void func (CtrlTab tab, MenuBar menu) ;

void (& func_ref)(CtrlTab, MenuBar) = func;
tab1.WhenSet = THISBACK(func_ref, tab1, menu);

I hope that is a little more clear.

I don't know if these examples are easy to follow and/or easy to implement.

Thnx for any assistance.
roboloki

[Updated on: Fri, 04 October 2019 12:00] by Moderator

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