LScreenCapture::CaptureWindow

#include "ltwrappr.h"

virtual L_INT LScreenCapture::CaptureWindow(hWnd, wctCaptureType)

HWND hWnd;	the handle of the window to capture
WINDOWCAPTURETYPE wctCaptureType;	capture type

Captures an image of the specified window or the specified window's client area into the associated class object's bitmap.

Parameter	Description
hWnd	The handle of the window to capture.
wctCaptureType	The capture type. Possible values are:
	Value	Meaning
	CAPTURE_CLIENT_AREA	[0x01] Captures the client area of the window.
	CAPTURE_WINDOW	[0x02] Capture the complete window.

Returns

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

Comments

The hot key needs to be pressed to complete the capture.

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__CaptureWindowExample(HWND hWnd) 
{ 
   L_INT nRet; 
   HDC hDC; 
   RECT rcClientRect; 
   LBitmap LeadBitmap; 
   LScreenCapture screenCapture(&LeadBitmap); 
   // capture Window 
   nRet = screenCapture.CaptureWindow(hWnd, CAPTURE_WINDOW); 
   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; 
   return SUCCESS; 
}

Help Version 19.0.2017.10.27

Products | Support | Contact Us | Copyright Notices
© 1991-2017 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

Call Back Functions

Summary of Features