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);elseMessageBox(hWnd, TEXT("Invalid LScreenCapture object."), TEXT("LScreenCapture::IsValid"), MB_OK);return SUCCESS;}
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