Implementing a Non-Automated Annotations Program (Visual C++ 5.0)

Implementing a Non-Automated Annotations Program (C++ 5.0 and later)

Take the following steps to start a project and to add some code that positions, scales, and displays an image in a dialog box.

1.	Start a new project as follows:
	Run Microsoft Visual C++ 5.0, select the File >New menu option, and do the following:
	a.	Click the Projects tab.
	b.	Select MFC AppWizard (exe) as the project type
	c.	In the Project name text box, specify Annotation.
	d.	In the Location text box, specify the path of the project.
	e.	Click the OK button.
2.	In the Step 1 dialog box, do the following:
	a.	Select Dialog based.
	b.	Click the Next button.
3.	In the Step 2 of 4 dialog box, do the following:
	a.	Ensure that About Box is selected.
	b.	Ensure that 3D Controls is selected.
	c.	Click the Next button.
4.	In the Step 3 of 4 dialog box, do the following:
	a.	For comments, ensure that Yes, Please is selected.
	b.	For how to use the MFC library, select Use MFC in a Shared DLL.
	c.	Click the Next button.
5.	In the Step 4 of 4 dialog box, just click Finish.
6.	Read New Project Information, and click OK. (The AppWizard creates the project files and opens the project.)
7.	Add #include statements to your program so you can access the LEAD Class Library constants and classes:
	a.	In the Project Workspace, click the FileView tab.
	b.	Double-click the Annotation files folder to open it.
	c.	Double-click the Header Files folder to open it.
	d.	Double-click the StdAfx.h file to edit it.
	Add the following lines to the end of the file (keep in mind, you may have to change the path to where the header files reside):

#include ""..\..\..\..\include\ClassLib\ltWrappr.h

8.	Add a Button control to the main window as follows:
	a.	In the Project Workspace, click the ResourceView tab.
	b.	Double-click the Annotation resources folder to open it.
	c.	Double-click the Dialog folder to open it.
	d.	Double-click IDD_ANNOTATION_DIALOG to design the form.
	e.	Select the TODO... text control; then press the Delete key to delete it.

9.	Add a command button to your form and name it as follows:
	ID	Caption
	IDC_BITMAPWND	Bitmap Window

10.	Change the command button properties as follows:
	a.	Right-click on the button then select properties.
	b.	Click the Styles tab.
	c.	Select the Flat check box
	d.	Select the Owner Draw check box
	e.	Click the General tab.
	f.	Clear the Visible check box
	g.	Close the dialog
11.	Press Ctrl-F4 to close all windows back to the Project Workspace.

12.	Add the following Member Variables to CAnnotationDlg Class:
	LAnnContainer	m_LeadAContainer;
	LPaint	m_LPaint;
	LBitmap	m_LBitmap;
	void	CreateNoteAnn(HWND hWnd);
	void	AnnStart(HWND hWnd);

13.	Go to the OnInitDialog() function as follows:
	a.	In the Project Workspace, click the ClassView tab.
	b.	Double-click the Annotation classes folder to open it.
	c.	Expand the CAnnotationDlg class.
	d.	Double-click the OnInitDialog() function to edit it.
14.	Edit the OnInitDialog() function to add the following code after the line that says //TODO: Add extra initialization here:

LSettings::LoadLibraries (LT_ALL_LEADLIB);
LSettings::UnlockSupport(L_SUPPORT_DOCUMENT, L_KEY_DOCUMENT);

15.	Add implementation to the member method in the CAnnotationDlg class:
	a.	In the Project Workspace, click the FileView tab.
	b.	Double-click the Annotation files folder to open it.
	c.	Double-click the Source files folder to open it.
	d.	Double-click the AnnotationDlg.cpp file to edit it.
	e.	Add the following to the end of the file:

void CAnnotationDlg::AnnStart(HWND hWnd)
{
   RECT rcClientArea;
   ANNRECT rcContainerRect;
   HDC hDC;

   m_LBitmap.Load(TEXT("c:\\parrots.jpg"));

   ::GetClientRect(hWnd,&rcClientArea);
   m_LBitmap.SetDstRect(&rcClientArea);

   hDC = ::GetDC(hWnd);

   /*Display our Bitmap*/
   m_LPaint.SetBitmap(&m_LBitmap);
   m_LPaint.SetDC(hDC);
   m_LPaint.PaintDC();

   ::ReleaseDC(hWnd,hDC);

   // Create Container
   rcContainerRect.left = 0;
   rcContainerRect.top = 0;
   rcContainerRect.right = rcClientArea.right-rcClientArea.left;
   rcContainerRect.bottom = rcClientArea.bottom-rcClientArea.top;

   m_LeadAContainer.Create(hWnd,&rcContainerRect,TRUE);

   m_LeadAContainer.SetOffsetX((L_DOUBLE) 0, 0);
   m_LeadAContainer.SetOffsetY((L_DOUBLE) 0, 0);
}

void CAnnotationDlg::CreateNoteAnn(HWND hWnd)
{
   LAnnNote AnnNote;
   RECT rcAnnBounds;
   HDC hDC;
   ANNRECT rcContainerRect;
   ANNRECT rcNoteRect;

   hDC = ::GetDC(hWnd);

   m_LeadAContainer.GetRect(&rcContainerRect);
   int nRet = AnnNote.Create();

   /* Size and position the note */
   rcNoteRect.left = rcContainerRect.right / 8;
   rcNoteRect.top = rcContainerRect.bottom / 8;
   rcNoteRect.right = rcContainerRect.right / 2;
   rcNoteRect.bottom = rcContainerRect.bottom / 2;

   nRet = AnnNote.SetRect(&rcNoteRect);

   nRet = AnnNote.SetText(TEXT("This is my text"), 0);
   nRet = AnnNote.SetBackColor(RGB(0, 255, 255), 0);
   nRet = AnnNote.SetFontBold(TRUE, 0);
   AnnNote.SetFontItalic (FALSE, 0);
   AnnNote.SetFontName (TEXT("Arial"), 0);
   AnnNote.SetFontSize (16, 0);
   AnnNote.SetFontStrikeThrough(FALSE, 0);
   AnnNote.SetFontUnderline(TRUE, 0);
   AnnNote.SetForeColor (RGB(255, 0, 0), 0);

   /* Display the note */

   AnnNote.SetVisible(TRUE);
   nRet = m_LeadAContainer.Insert(AnnNote);

   nRet = m_LeadAContainer.GetBoundingRect(&rcAnnBounds, NULL);
   nRet = m_LeadAContainer.Draw(hDC,&rcAnnBounds);
  ::ReleaseDC(hWnd,hDC);
}

16.	Add a command control to your from and name it as follows:
	ID	Caption
	IDC_STARTANN	&Start Annotation

17.	Press Ctrl-W to go to the MFC Class Wizard; then do the following:
	a.	Click the Message Maps tab.
	b.	In the Class Name combo box, select CAnnotationDlg.
	c.	In the Object IDs list box, select IDC_STARTANN.
	d.	In the Messages list box, select BN_CLICKED.
	e.	Click the Add function button. Choose OK for the default function name (OnStartANN).
	f.	Click the Edit Code button and enter the following code:

AnnStart(GetDlgItem(IDC_BITMAPWND)->GetSafeHwnd());
CreateNoteAnn(GetDlgItem(IDC_BITMAPWND)->GetSafeHwnd());

18.	On the main menu, select Build > Build Annotation.exe to build the project.
19.	On the main menu, select Build > Execute Annotation.exe to run the project.