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LEADTOOLS Raster imaging C++ Class library help

LScreenCapture::CaptureAreaOptionDlg

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#include "ltwrappr.h"

virtual L_INT LScreenCapture::CaptureAreaOptionDlg(hParentWnd, uFlags)

HWND hParentWnd;

/* handle to parent window */

L_UINT uFlags;

/* flags to determine function behavior */

Displays a dialog to set the options for LScreenCapture::CaptureArea.

Parameter

Description

hParentWnd

Handle to the parent window of the area options dialog box.

uFlags

Flags that determine the options dialog.  Possible values are:

 

Value

Meaning

 

NONE

[0x0000] No "?" help button will be shown.

 

SCRDLG_CAPTUREAREAOPTION_CONTEXTHELP

[0x0002] Area options dialog context help.

Returns

SUCCESS

The function was successful.

< 1

An error occurred. Refer to Return Codes.

Required DLLs and Libraries

LTDIS
LTSCR

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.

See Also

Functions:

Class Members, LScreenCapture::ScreenCaptureHelpCallBack

Example

L_INT LScreenCapture__CaptureAreaOptionDlgExample(HWND hWnd)
{
   L_INT nRet;
   HDC hDC;
   RECT rcClientRect;
   LBitmap LeadBitmap;
   LScreenCapture screenCapture(&LeadBitmap);
   // display a dialog to select area options
   nRet = screenCapture.CaptureAreaOptionDlg(hWnd, 0);
   if(nRet == SUCCESS)
   {
      // CaptureArea - HotKey = F11
      // Press the hotkey after calling the function to activate capture
      nRet = screenCapture.CaptureArea();
      if(nRet == SUCCESS)
      {
         hDC = GetDC(hWnd);
         GetClientRect(hWnd, &rcClientRect);
         LeadBitmap.Paint()->SetDC(hDC);
         nRet = LeadBitmap.SetDstRect(&rcClientRect);
         if(nRet != SUCCESS)
            return nRet;
         nRet = LeadBitmap.Paint()->PaintDC();
         if(nRet != SUCCESS)
            return nRet;
         ReleaseDC(hWnd, hDC);
      }
      else
         return nRet;
   }
   else
      return nRet;
   return SUCCESS;
}
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