combobox in c

hi all,

I need help Please
I create a Combobox in win32 from c
and i should read frot the combobox and insert to pointr or array.

how i can ???

I create the combobox so :

hwndCombobox = CreateWindow (TEXT("combobox"),
WS_CHILD | WS_VISIBLE |,
cxChar+ 20, 80,
4 * cxChar, 7 * cyChar / 4,
hwnd, (HMENU) (EDITID+1),
((LPCREATESTRUCT) lParam) -> hInstance, NULL) ;


I hope I explained myself properly :)


Thank helpers

You can use the message CB_GETLBTEXT to get the text from a combobox; see the message description:

Code:

---

CB_GETLBTEXT 
wParam = (WPARAM) index;                // item index
lParam = (LPARAM) (LPCSTR) lpszBuffer;  // address of buffer

---

The buffer is a pointer to a buffer that receives the text (should have enought space also for the terminating null character). So if you want to get the combobox item into a pointer you should allocate space for the text and get it using that message. If you don't know how length is the text, you can also use the message CB_GETLBTEXTLEN, see the description:

Code:

---

CB_GETLBTEXTLEN 
wParam = (WPARAM) index;  // item index
lParam = 0;              // not used; must be zero

---

So get the length of the item-text, allocate a buffer for it (remember to allocate an extra byte for the terminating character) and get it; now you can keep it as a single pointer or just send it to an array.

Hope that helps
Niara

Win32 Tutorials - Combo Boxes

This is a good tutorial site for that.

Did you create it in the .rc (Resource file)?

Quote:

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Originally Posted by binks

Did you create it in the .rc (Resource file)?

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You cannot call 'CreateWindow()' from a resource file, take a look at the kaliberon posted code :)
The creation mode is not relevant when the point is how to read the content (in that case)

Regards
Niara

I was refering to this

Code:

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#include "resource.h"

IDD_CONTROLSDLG DIALOG 260, 200, 180, 120
STYLE DS_MODALFRAME | WS_POPUP | WS_CAPTION | WS_SYSMENU
CAPTION "Windows Controls"
FONT 8, "MS Shell Dlg"
BEGIN
    DEFPUSHBUTTON  "Close", IDCANCEL, 120, 100, 50, 14
    COMBOBOX        IDD_SIZE_CBO, 40, 8, 90, 80END

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