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LScreenCapture::CaptureWindow

#include "ltwrappr.h"

virtual L_INT LScreenCapture::CaptureWindow(hWnd, wctCaptureType)

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

Parameters

HWND hWnd

The handle of the window to capture.

WINDOWCAPTURETYPE 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

Value	Meaning
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; 
 
}