Beginner needing some help please...
Author
HI
I am just learning C++ and i think its great!
But i just finshed some code out of a book- 21 days learn C++
etc etc
And it explains part of a code every diffacult and I wonder if anyone here can tell me in a better sense so I can understand. Also the PDF book is pissing me off to go back and forth LOL
well the code is- GetDlgItem
He says that its passed the ID of the controls i wanna change??
I dont understand someone please help me I used this code to disable and enable showing stuff..
Also anyone with ICQ good at C++ or learning like me contact me so we can chat and help me or learn togeather thanks cya
ICQ- 48233744
thanks
bye
Hi,
What he means is that you pass the ID of the control (listbox/edit box) to GetDlgItem() and you get a pointer to window (base class to edit boxes/list boxes). You then cast the return value to appropriate class and you now have a pointer to requested editbox/listbox/whatever.
If you use MFC I think it creates a separate file with IDs, you won''t miss it.
Otherwise you have created the IDs by yourself, or?
I mean, something like this:
#define IDC_EDITBOX 4327894327894327894378943789
CEdit* ptr;
ptr=(CEdit*) GetDlgItem(IDC_EDITBOX);
now you have a ptr to box. Now you may use it.
Got it?
/Mankind gave birth to God.
GetDlgItem() is also a function call in Win32 programming. You can use it to get the HWND of a dialog control. Let say you have a dialog window with a text box. To get the information in the textbox you call:
Gandalf the Black
Edited by - Gandalf on August 2, 2000 6:05:00 AM
char s[50];GetWindowText(GetDlgItem( /* handle to dialog box */, /* id to text box control */ ), &s, 50); Gandalf the Black
Edited by - Gandalf on August 2, 2000 6:05:00 AM
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