Allowing a function to see listbox in another form - c++-cli

Question

I have all my code in my .cpp file. I have a function in there:
void funct1 (void)
{
...
if (num_fields) {
for (ix = 0; ix < num_fields; ix++)
if (status == OK)
checkedListBox1->Items->Add(gcnew String(buffer));
} else
checkedListBox1->Items->Add("No available extra data fields");
}
However my function cannot see the checkedlistbox1 from my Form5.h.
How do I allow my function to see this?
I am calling my function from my cpp file:
System::Void Form5::MainMAFBrowseBtn_Click(System::Object^ sender,
System::EventArgs^ e) {
checkedListBox1->Items->Clear();
System::String^ paf_path2 = textBox1->Text;
FolderBrowserDialog^ folderBrowserDialog1;
folderBrowserDialog1 = gcnew System::Windows::Forms::FolderBrowserDialog;
folderBrowserDialog1->Description = L"Select the directory of your MAF files ";
folderBrowserDialog1->ShowNewFolderButton = false;
// Show the FolderBrowserDialog.
System::Windows::Forms::DialogResult result = folderBrowserDialog1->ShowDialog();
if ( result == ::DialogResult::OK )
paf_path2 = folderBrowserDialog1->SelectedPath;
textBox1->Text = paf_path2;
paf_path = (char*)(void*)Marshal::StringToHGlobalAnsi(paf_path2);
funct1();
}

Answer 1

If functl() is not part of the class, you'll need to pass in checkedListBox1 as a parameter, like so:
void funct1(System::Windows::Forms::CheckedListBox% checkedListBox1)
{
...
}
Than in your calling function:
System::Void Form5::MainMAFBrowseBtn_Click(System::Object^ sender, System::EventArgs^ e)
{
...
functl(checkedListBox1);
}
or inside your class Form5 you can put the declaration of functl there:
class Form5
{
...
private:
void functl();
};
Then in your .cpp file just declare functl as:
void Form5::functl()
{
/// Now you have direct access to checkedListBox1.
}