Customized Visual Studio .NET package: your fully integrated document window inside the IDE

#include "StdAfx.h"
#include "vsbasicwindow.h"

BOOL CVsBasicWnd::m_bClassRegistered = FALSE;

CVsBasicWnd::CVsBasicWnd(void)
{
	m_hWnd = NULL;
}

CVsBasicWnd::~CVsBasicWnd(void)
{
	CDbg::Trace( "  CVsBasicWnd:: destructor\n" );
	if ( m_hWnd != NULL )
	{
		::DestroyWindow(m_hWnd);
	}
}

#pragma warning(disable:4244)
#pragma warning(disable:4312)

LRESULT CALLBACK CVsBasicWnd::_MainWndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
	switch(uMsg)
	{
	case WM_PAINT:
		{
			PAINTSTRUCT ps;
			HDC hDC = ::BeginPaint(hWnd,&ps);
			if ( hDC )
			{
				::Ellipse( hDC, 0, 0, 40, 40 );
			}
			::EndPaint(hWnd,&ps);
			return 1;
		}
	case WM_CREATE:
		{
			if ( lParam != 0 )
			{
				CVsBasicWnd* pObj = (CVsBasicWnd*)(((LPCREATESTRUCT)(lParam))->lpCreateParams);
				pObj->m_hWnd = hWnd;
				::SetWindowLongPtr(hWnd,GWLP_USERDATA,(LONG_PTR)pObj);
				return 0;
			}
			break;
		}
	case WM_DESTROY:
		{
			CVsBasicWnd* pObj = (CVsBasicWnd*)::GetWindowLongPtr( hWnd, GWLP_USERDATA );
			if ( pObj )
			{
				pObj->m_hWnd = NULL;
			}
			//if child dont call ::PostQuitMessage(0);
			break;
		}
	};
	return ::DefWindowProc(hWnd,uMsg,wParam, lParam);
}
#pragma warning(default:4244)
#pragma warning(default:4312)
 
void CVsBasicWnd::Close()
{
	if ( m_hWnd )
	{
		::DestroyWindow(m_hWnd );
	}
}

BOOL CVsBasicWnd::Create(HWND hParent, int iX, int iY, int iCX, int iCY)
{
	if ( !m_bClassRegistered )
	{
		WNDCLASSEX wcx; 
	 
		wcx.cbSize = sizeof(wcx);          // size of structure 
		wcx.style = CS_HREDRAW | CS_VREDRAW;                    // redraw if size changes 
		wcx.lpfnWndProc = (WNDPROC)_MainWndProc;     // points to window procedure 
		wcx.cbClsExtra = 0;                // no extra class memory 
		wcx.cbWndExtra = 0;                // no extra window memory 
		wcx.hInstance = NULL;         // handle to instance 
		wcx.hIcon = ::LoadIcon(NULL, IDI_APPLICATION);              // predefined app. icon 
		wcx.hCursor = LoadCursor(NULL,IDC_ARROW);                    // predefined arrow 
		wcx.hbrBackground = (HBRUSH)GetStockObject( WHITE_BRUSH);                  // white background brush 
		wcx.lpszMenuName =  NULL;    // name of menu resource 
		wcx.lpszClassName = "MishaVsWindow";  // name of window class 
		wcx.hIconSm = NULL;
		if ( RegisterClassEx(&wcx) )
		{
			m_bClassRegistered = TRUE;
		}
	}
 
    if ( m_bClassRegistered )
	{
	   HWND hwnd = CreateWindowEx( 0,
						"MishaVsWindow",
						"Sample",            // title-bar string 
						(hParent==NULL?WS_OVERLAPPEDWINDOW:WS_CLIPSIBLINGS|WS_CHILD|WS_VISIBLE),
						iX,       // default horizontal position 
						iY,       // default vertical position 
						iCX,       // default width 
						iCY,       // default height 
						(HWND) hParent,         // no owner window 
						(HMENU) NULL,        // use class menu 
						NULL,           // handle to application instance 
						this);      // no window-creation data 
	   if ( hwnd )
	   {
			ShowWindow(hwnd, SW_SHOW); 
			UpdateWindow(hwnd); 
			return TRUE; 
	   }
	}
	return FALSE;
}