C / C++ / MFC

followait wrote:

And I also tried to modify it to:

[id(3), helpstring("method GetData")] VARIANT GetData(VARIANT id, [out] VARIANT *name);

[id(3), helpstring("method GetData")] VARIANT GetData(VARIANT id, [out, retval] VARIANT *name);

invalid use of "retval" attribute :

[id(3), helpstring("method GetData")] VARIANT GetData(VARIANT id, [out, retval] VARIANT *name1, [out, retval] VARIANT *name2);

followait wrote:

In fact I have multiple return valus, not only name,

bool MyFunc( int nTheInt, DWORD* pdwTheResult );

[id(3)] VARIANT GetData(VARIANT id.......<small>the rest omitted for brevity</small>

[id(3)] BOOL GetData(VARIANT id, [out] VARIANT *name1, [out] VARIANT *name2);

Dim name1 As Object
Dim name2 As Object
Dim success As Boolean
success = MyCtrl.GetData( 1, name1, name2 )

Additional Information:
An invalid VARIANT was detected during a conversion from an unmanaged VARIANT
to a managed object. Passing invalid VARIANTs to the CLR can cause unexpected exceptions,
corruption or data loss.

VARIANT CTheaterCtrlCtrl::GetSubareaInfo(VARIANT &id, VARIANT* name, VARIANT* description, VARIANT* row_count, VARIANT* column_count, VARIANT* outline, VARIANT* show_text, VARIANT* pic_url)
{
	AFX_MANAGE_STATE(AfxGetStaticModuleState());

	VariantInit(name);
	VariantInit(description);
	VariantInit(row_count);
	VariantInit(column_count);
	VariantInit(outline);
	VariantInit(show_text);
	VariantInit(pic_url);

	MessageBox(L"0");

	VARIANT vaResult;
	VariantInit(&vaResult);
	vaResult.vt=VT_BOOL;
	vaResult.boolVal=VARIANT_FALSE;

	std::list<subarea> & subareas=m_client_wnd.get_theater().get_subareas();
	std::list<subarea>::iterator it=m_client_wnd.get_theater().get_subarea_by_id(id.bstrVal);
	MessageBox(L"1");
	if (it==subareas.end()) {
		return vaResult;
	}
	MessageBox(L"2");

	name->vt=VT_BSTR;
	name->bstrVal=SysAllocString(it->get_name().c_str());
	description->vt=VT_BSTR;
	description->bstrVal=SysAllocString(it->get_description().c_str());
	Seats & seats=it->get_seats();
	row_count->vt=VT_I4;
	row_count->intVal=seats.get_row_count();
	column_count->vt=VT_I4;
	column_count->intVal=seats.get_column_count();

	MessageBox(L"3");

	const std::vector<cpoint> & subarea_outline=it->get_outline();
	SAFEARRAYBOUND rgsabound[1];
	rgsabound[0].lLbound=0;
	rgsabound[0].cElements=subarea_outline.size();
	SAFEARRAY * psa=SafeArrayCreate(VT_UI4,1,rgsabound);
	outline->vt=VT_ARRAY;
	outline->parray=psa;

	UINT HUGEP * pPoint=NULL;
	SafeArrayAccessData(psa,(void HUGEP **)&pPoint);

	MessageBox(L"a");

	std::vector<cpoint>::const_iterator it1=subarea_outline.begin();
	int i=0;
	for (;it1!=subarea_outline.end();++it1) {
		*(pPoint+i)=UINT(MAKELONG(it1->x,it1->y));
		++i;
	}

	MessageBox(L"b");

	SafeArrayUnaccessData(psa);

	MessageBox(L"4");

	show_text->vt=VT_BOOL;
	if (it->get_show_text())
		show_text->boolVal=VARIANT_TRUE;
	else
		show_text->boolVal=VARIANT_FALSE;

	MessageBox(L"5");

	pic_url->vt=VT_BSTR;
	pic_url->bstrVal=SysAllocString(it->get_bk_url().c_str());

	MessageBox(L"6");

	vaResult.boolVal=VARIANT_TRUE;

	return vaResult;
}</cpoint></cpoint></subarea></subarea>

followait wrote:

outline->vt=VT_ARRAY;

outline->vt = VT_UI4 | VT_ARRAY;

Dhiraj kumar Saini wrote:

1. I neew to click it twice although it should open on a single click.

Member 455770 wrote:

Has anyone any clues as to why this is so.

<code>// No reason to create an imagelist then attach it to a
//   CImageList object....just let CImageList do it</code>
m_cImageListSmall.Create(16, 16, ILC_COLOR32|ILC_MASK, 1, 1);

<code>// AND mask - monochrome -  determines which pixels get drawn</code>
BYTE AND[32];  <code>// 32 = 16 pixels * 16 pixels / 8 bitsperpixel pixelspermaskbyte *EDIT*</code>
for( int i=0; i<32; i++ )
{
    AND[i] = 0xFF;  // show all pixels
}

<code>// XOR mask - 32bpp ARGB -  determines the pixel values</code>
DWORD XOR[256];  <code>// 256 pixels = 16 * 16, DWORD for 32 bits per pixel</code>
for( int i=0; i<256; i++ )
{
    XOR[i] = 0xFFFF0000;  <code>// 0xAARRGGBB</code>
}

HICON icon = ::CreateIcon(NULL,16,16,<code>1,32</code>,AND,(BYTE*)XOR);  <code>// 1 plane, 32bits per pixel</code>

m_cImageListSmall.Add(icon);

Mark Salsbery
Microsoft MVP - Visual C++

CImageList m_cImageListSmall;
m_cImageListSmall.Create(16, 16, ILC_COLOR32|ILC_MASK, 1, 1);

// AND mask - monochrome -  determines which pixels get drawn
BYTE AND[32];
for( int i=0; i<32; i++ )
{
    AND[i] = 0xFF;
}

// XOR mask - 32bpp ARGB -  determines the pixel values
DWORD XOR[256];
for( int i=0; i<256; i++ )
{
    XOR[i] = 0xFFFF0000;
}

HICON icon = ::CreateIcon(NULL,16,16,1,32,AND,(BYTE*)XOR);

m_cImageListSmall.Add(icon);

CClientDC dc(this);
m_cImageListSmall.Draw(&dc, 0, CPoint(10,10), ILD_TRANSPARENT);

Mark Salsbery
Microsoft MVP - Visual C++

// My list control (m_ListCtrl) has the following styles:
//    LVS_REPORT | LVS_SHAREIMAGELISTS | LVS_ALIGNLEFT | WS_BORDER | WS_TABSTOP

    m_cImageListSmall.Create(16, 16, ILC_COLOR32|ILC_MASK, 1, 1);
    // AND mask - monochrome -  determines which pixels get drawn
    BYTE AND[32];
    for( int i=0; i<32; i++ )
    {
        AND[i] = 0xFF;
    }
    // XOR mask - 32bpp ARGB -  determines the pixel values
    DWORD XOR[256];
    for( int i=0; i<256; i++ )
    {
        XOR[i] = 0xFFFF0000;
    }
    HICON icon = ::CreateIcon(NULL,16,16,1,32,AND,(BYTE*)XOR);
    m_cImageListSmall.Add(icon);


    m_ListCtrl.SetImageList(&m_cImageListSmall, LVSIL_SMALL);

    m_ListCtrl.SetExtendedStyle(LVS_EX_FULLROWSELECT);
    m_ListCtrl.InsertColumn(0, _T("Column"), LVCFMT_LEFT, 100);
    m_ListCtrl.InsertItem(10, _T("aaaaaa"), 0);
    m_ListCtrl.InsertItem(10, _T("cccccc"), 0);
    m_ListCtrl.InsertItem(10, _T("eeeeee"), 0);
    m_ListCtrl.InsertItem(10, _T("bbbbbb"), 0);
    m_ListCtrl.InsertItem(10, _T("dddddd"), 0);

Mark Salsbery
Microsoft MVP - Visual C++