LScreenCapture::IsValid

#include "ltwrappr.h"

virtual L_BOOL LScreenCapture::IsValid()

Determines whether an LScreenCapture object is valid.

Returns

TRUE

The object is ready to be used.

FALSE

The object is not ready to be used.

Comments

Before you can use any of the screen capture functions, a bitmap must be associated with the class object. Until you have associated a bitmap with the LScreenCapture object, the object is considered invalid.

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

Example

L_INT LScreenCapture__IsValidExample(HWND hWnd) 
{ 
   LBitmap LeadBitmap; 
   LScreenCapture screenCapture; 
 
   screenCapture.SetBitmap(&LeadBitmap); 
 
   if(screenCapture.IsValid()) 
      MessageBox(hWnd, TEXT("Screen capture object is ready."), TEXT("LScreenCapture::IsValid"), MB_OK); 
   else 
      MessageBox(hWnd, TEXT("Invalid LScreenCapture object."), TEXT("LScreenCapture::IsValid"), MB_OK); 
 
   return SUCCESS; 
} 
Help Version 20.0.2019.12.4
Products | Support | Contact Us | Intellectual Property Notices
© 1991-2019 LEAD Technologies, Inc. All Rights Reserved.

LEADTOOLS Raster Imaging C++ Class Library Help