DtvLong dal_mas_chk_mas (idm)

Checks whether the mask passed exists in local memory.

Input Parameters Significance
DtvLong idm mask Id

Output Parameters Significance
no -

Return Code Significance
0 mask exists
1 mask does not exist

Use this function to check the existence of a mask whenever you want to apply program functions to an object but are not sure whether the object still exists in local memory.

Attention! Applying a program function to a non-existent object can result in a system crash.