🔒 Locked

Visual C++ Dynamic Controls

Started by karan13 Jan 12, 2003 at 11:52 AM 3 replies 2.4k views

Original Post

Jan 12, 2003 at 11:52 AM

I have a quick question on Visual C++... I am trying to create an application where i figured i need to dynamically create controls... mainly checkboxes... The user enters a number.. now i cant be sure how many he may enter... it could be anywhere from 10 to 25... but the thing is that when he presses okay, i need to present him with the exact amount of checkboxes... so if he entered 20... and then hits enter... then i have to display 20 checkboxes... Is there a way i can dynamically create this using code... so that i dont have to hide all the possible number of checkboxes, then make them visible, when i need them... And also, is it possible to make the values of a checkboxes to be pointed to by an array... like if i have 10 checkboxes... can i make the variables of these checkboxes as part of an array, so that if i say m_bCheck [2], it will access the 3rd checkbox.. is it possible.. if so how... I appreciate any help anyone can give me...

Colin Jeanne

Jan 12, 2003 at 3:14 PM

Look up CreateWindow() or CreateWindowEx(). Those can dynamically create windows. I suggest creating a generic checkbox creation function. To put your windows in an array, simple make an array of HWND''s.

Qui fut tout, et qui ne fut rien
Invader''s Realm

karan13

Jan 14, 2003 at 12:53 PM

Alright... i tried it.. but i still couldnt get it... i dont know if u didnt understand my question or what about how to create dynamic controls...

I mean, in an edit box, a user enters a number from 10 to 30... then depending on what number he entered, i display those many checkboxes... and each one has to be independent, so i can get values from each one... so how do i implement this at runtime...

Thanks...

quasar3d

Jan 14, 2003 at 2:01 PM

You probably know this, but a control like a button and an edit box, in fact is window, so you need CreateWindow to create a control. for a checkbox this is

#define IDC_CHECKBOX1 1 // we will use 1 as the id for the checkbox, however this can be any number, as long as it's unique in all the child windows in the parent window

hCheckbox = CreateWindow("BUTTON","Check this checkbox",WS_CHILD|BS_CHECKBOX,
0,0,100,32,hParent,(HMENU)IDC_CHECKBOX1,hInstance,NULL);
ShowWindow(hCheckBox,SW_SHOWNORMAL);

My Site

[edited by - Quasar3D on January 14, 2003 3:05:16 PM]

Topic Locked

This topic has been locked by a moderator. New replies are not allowed.