LBitmapWindow::SetAutoRgnToFloater

#include "ltwrappr.h"

L_BOOL LBitmapWindow::SetAutoRgnToFloater(bAutoRgnToFloater)

L_BOOL bAutoRgnToFloater;

flag that indicates whether to create the floater

Enables or disables the automatic creation of a floater from a region.

Parameter	Description
bAutoRgnToFloater	Flag that indicates whether to enable or disable the automatic creation of a floater from a region. Possible values are:
	Value	Meaning
	TRUE	[1] Enable the automatic creation of a floater from the region. This is the default value.
	FALSE	[0] Disable the automatic creation of a floater from the region.

Returns

The previous setting.

TRUE	The previous setting was TRUE.
FALSE	The previous setting was FALSE.

Comments

The view perspective is always TOP_LEFT.

If you move the floater, the original region remains unchanged.

This member function does not affect the creation of floaters using the TOOL_REGION tool. This function only affects the behavior of the Lregion functions on the LbitmapWindow().

To create a floater programmatically with no region, do the following:

RECT Rect={10,20,50,100};
m_ BitmapWindow.SetAutoRgnToFloater(TRUE);
LBitmapRgn Region(&m_ BitmapWindow);
Region.SetRgnRect(&Rect);

To create a region programmatically with no floater, do the following:

RECT Rect={10,20,50,100};
m_ BitmapWindow.SetAutoRgnToFloater(FALSE);
LBitmapRgn Region(&m_ BitmapWindow);
Region.SetRgnRect(&Rect);

Required DLLs and Libraries

LTDIS
LTDLG
LTEFX
LTFIL
LTIMG
LTSCR
LTTWN

For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

Platforms

Win32, x64.

Example

#define MAKE_IMAGE_PATH(pFileName) TEXT("C:\\Users\\Public\\Documents\\LEADTOOLS Images\\")pFileName 
L_INT LBitmapWindow__SetAutoRgnToFloaterExample(HWND m_hWnd) 
{ 
   L_INT nRet; 
   LBitmapWindow *pBitmapWindow = new(LBitmapWindow); 
   LBitmapRgn *pBitmapRgn = new(LBitmapRgn); 
   RECT rRgnBounds, myRect; 
   L_BOOL bIsValid; 
   L_BOOL bAutoRgnToFloater; 
   L_BOOL bBitmapHasRgn; 
   L_BOOL bHasRgn; 
   L_BOOL bHasFloater; 
   L_TCHAR szTemp[500], szOutput[500]; 
   HRGN hRgn; 
   pBitmapWindow->EnableAutoPaint(TRUE); 
   pBitmapWindow->SetWndHandle(m_hWnd); 
   nRet =pBitmapWindow->Load(MAKE_IMAGE_PATH(TEXT("image1.cmp"))); 
   if(nRet !=SUCCESS) 
      return nRet; 
   pBitmapWindow->SetAutoRgnToFloater (TRUE); 
   pBitmapRgn->SetBitmap(pBitmapWindow); 
   RECT Rect={10,20,50,100}; 
   //set the rect as a region 
   nRet =pBitmapRgn->SetRgnRect(&Rect); 
   if(nRet !=SUCCESS) 
      return nRet; 
   bIsValid = pBitmapRgn->IsValid(); 
   bAutoRgnToFloater = pBitmapWindow->GetAutoRgnToFloater(); 
   bBitmapHasRgn = pBitmapRgn->BitmapHasRgn(); 
   bHasRgn = pBitmapWindow->HasRgn(); 
   bHasFloater = pBitmapWindow->HasFloater(); 
   pBitmapRgn->GetRgnBounds(&rRgnBounds); 
   wsprintf( szOutput, 
   TEXT("[%d]pBitmapRgn->IsValid()\n[%d]pBitmapWindow->GetAutoRgnToFloater()\n[%d]pBitmapRgn->BitmapHasRgn()\n[%d]pBitmapWindow->HasRgn()\n[%d]pBitmapWindow->HasFloater()\npBitmapRgn->GetRgnBounds(%d, %d, %d, %d)\n\n"), 
   bIsValid, 
   bAutoRgnToFloater, 
   bBitmapHasRgn, 
   bHasRgn, 
   bHasFloater, 
   rRgnBounds.left, 
   rRgnBounds.top, 
   rRgnBounds.right, 
   rRgnBounds.bottom 
   ); 
   hRgn = pBitmapWindow->GetFloaterRgn(FLOAT_RGN_TRANS_NONE); 
   GetRgnBox(hRgn, &myRect); 
   wsprintf(szTemp, TEXT("%spBitmapWindow->GetFloaterRgn(FLOAT_RGN_TRANS_NONE) (%d, %d, %d, %d)\n"), 
   szOutput, 
   myRect.left, 
   myRect.top, 
   myRect.right, 
   myRect.bottom); 
   lstrcpy(szOutput, szTemp); 
   hRgn = pBitmapWindow->GetFloaterRgn (FLOAT_RGN_TRANS_FROM_WINDOW); //bombs 
   GetRgnBox(hRgn, &myRect); 
   wsprintf(szTemp, TEXT("%spBitmapWindow->GetFloaterRgn(FLOAT_RGN_TRANS_FROM_WINDOW) (%d, %d, %d, %d)\n"), 
   szOutput, 
   myRect.left, 
   myRect.top, 
   myRect.right, 
   myRect.bottom); 
   lstrcpy(szOutput, szTemp); 
   AfxMessageBox(szOutput); 
   pBitmapWindow->SetWndHandle(NULL); 
   return SUCCESS; 
}

Help Version 19.0.2017.10.27

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