Classes and Member Functions > LScreenCapture > LScreenCapture Member Functions > LScreenCapture::CaptureActiveWindow

LScreenCapture::CaptureActiveWindow

#include "ltwrappr.h"

virtual L_INT LScreenCapture::CaptureActiveWindow(L_VOID)

Captures an image of the current active window into the associated class object's bitmap.

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__CaptureActiveWindowExample(HWND hWnd) 
{ 
   L_INT nRet; 
   HDC hDC; 
   RECT rcClientRect; 
   LBitmap LeadBitmap; 
   LScreenCapture screenCapture(&LeadBitmap); 
   // capture ActiveWindow - HotKey = F11 
   // Press the hotkey after calling the function to activate capture 
   nRet = screenCapture.CaptureActiveWindow(); 
   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; 
}