virtual L_BOOL LScreenCapture::IsValid()
Determines whether an LScreenCapture object is valid.
Value | Meaning |
---|---|
TRUE | The object is ready to be used. |
FALSE | The object is not ready to be used. |
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.
Win32, x64.
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;
}
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