In This Topic ▼

LScreenCapture::SetCaptureAreaOptions

#include "ltwrappr.h"

virtual L_INT LScreenCapture::SetCaptureAreaOptions(pCaptureAreaOption)

pLEADCAPTUREAREAOPTION pCaptureAreaOption;

pointer to a LEADCAPTUREAREAOPTION structure

Sets options for capturing an area.

Parameter	Description
pCaptureAreaOption	Pointer to a LEADCAPTUREAREAOPTION structure.

Returns

SUCCESS	The function was successful.
< 1	An error occurred. Refer to Return Codes.

Comments

Use this function to change the current area image capture options. For information on the default option settings, refer to LEADCAPTUREAREAOPTION.

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.

Example

L_INT LScreenCapture__SetCaptureAreaOptionsExample(HWND hWnd) 
{ 
   L_INT nRet; 
   HDC hDC; 
   RECT rcClientRect; 
   LBitmap LeadBitmap; 
   LScreenCapture screenCapture(&LeadBitmap); 
   LEADCAPTUREAREAOPTION CaptureAreaOptions; 
 
   nRet = screenCapture.GetCaptureAreaOptions(&CaptureAreaOptions); 
   if(nRet == SUCCESS) 
   { 
      // Set capture area to Triangle type 
      CaptureAreaOptions.uAreaType = CAPTURE_AREA_TRIANGLE; 
      nRet = screenCapture.SetCaptureAreaOptions(&CaptureAreaOptions); 
      if(nRet == SUCCESS) 
      { 
         // Current area will be captured using new settings 
         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; 
   } 
   else 
      return nRet; 
 
   return SUCCESS; 
}

Download our FREE evaluation

Help Version 20.0.2020.4.5

Products | Support | Contact Us | Intellectual Property Notices
© 1991-2020 LEAD Technologies, Inc. All Rights Reserved.

LEADTOOLS Raster Imaging C++ Class Library Help

Introduction

Version History

Getting Started

LEADTOOLS Raster Imaging Features

Redistributables/Files To Be Included With Your Application

Quick Reference

Tutorials

Classes and Member Functions

Summary of Features