HRESULT AccessibleObject::GetRole(std::wstring& role, long child_id,
IAccessible* acc) {
DWORD role_id = 0;
HRESULT hr = GetRole(role_id, child_id, acc);
if (hr != S_OK)
return hr;
UINT role_length = GetRoleText(role_id, nullptr, 0);
LPTSTR buffer = (LPTSTR)malloc((role_length + 1) * sizeof(TCHAR));
if (buffer != nullptr) {
GetRoleText(role_id, buffer, role_length + 1);
if (buffer) {
role = buffer;
} else {
role.clear();
}
free(buffer);
} else {
return E_OUTOFMEMORY;
}
return S_OK;
}
void get_role(long childId, IAccessible *pAccessible, char *itemText) {
long role ;
if (get_role(childId, pAccessible, &role) == S_OK) {
int roleTextMax = 255 ;
LPTSTR pRoleText = new TCHAR[roleTextMax] ;
GetRoleText(role, pRoleText, roleTextMax) ;
int lenSzRoleText = 255 ;
char *pszRoleText = new char[lenSzRoleText] ;
WideCharToMultiByte(CP_ACP, 0, pRoleText, wcslen(pRoleText) + 1, pszRoleText, lenSzRoleText, NULL, NULL) ;
sprintf(itemText, "0x%x, %s", role, pszRoleText) ;
}
}
// Get info for a child (id > 0) or object (id == 0)
void MyFrame::GetInfo(IAccessible* accessible, int id, wxString& name, wxString& role)
{
VARIANT var;
VariantInit(& var);
var.vt = VT_I4;
var.lVal = id;
BSTR bStrName = 0;
HRESULT hResult = accessible->get_accName(var, & bStrName);
if (hResult == S_OK)
{
name = wxConvertStringFromOle(bStrName);
SysFreeString(bStrName);
}
else
{
name = wxT("NO NAME");
}
VARIANT varRole;
VariantInit(& varRole);
hResult = accessible->get_accRole(var, & varRole);
if (hResult == S_OK && varRole.vt == VT_I4)
{
wxChar buf[256];
GetRoleText(varRole.lVal, buf, 256);
role = buf;
}
else
{
role = wxT("NO ROLE");
}
}