isValid
Checks if an image handle is valid (non-null).
Parameters
image | Image handle to check |
Returns
true if handle is valid
Checks if a PNG image handle is valid (non-null).
Parameters
image | PNG image handle to check |
Returns
true if handle is valid
Checks if a JPEG image handle is valid (non-null).
Parameters
image | JPEG image handle to check |
Returns
true if handle is valid
Checks if a BMP image handle is valid (non-null).
Parameters
image | BMP image handle to check |
Returns
true if handle is valid
Checks if a GIF image handle is valid (non-null).
Parameters
image | GIF image handle to check |
Returns
true if handle is valid
Checks if a shared image handle is valid (non-null).
Parameters
image | Shared image handle to check |
Returns
true if handle is valid