Delphi exception class

 

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Eexternal = Class (exception)

Eexternalexception = The Exception Code of class (eExternal) is invalid.

Integer calculation error
Einterror = Class (eExternal) integer calculation exception (base class)
Edivbyzero = Class (einterror) Integer Division 0 Overflow
Einterverflow = Class (einterror) Integer Overflow
Erangeerror = Class (einterror) integer out of bounds

Floating Point calculation exception
Ematherror = Class (eExternal) floating point calculation exception (base class)
Einvalidargument = Class (ematherror) parameter out of range
Einvalidop = Class (ematherror) is invalid floating point operation instruction
Eoverflow = Class (ematherror) floating point operation Overflow
Eunderflow = Class (ematherror) floating point operation Overflow
Ezerodivide = Class (ematherror) floating point calculation except 0

Eaccessviolation = Class (eExternal) Illegal Memory Access

Eprivilege = Class (eExternal) processor privilege Violation

Estackoverflow = Class (eExternal) end deprecated Stack Overflow

Econtrolc = Class (eExternal) User interruption

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Heap exception
Eheapexception = Class (exception)
Eoutofmemory = Class (eheapexception) Heap does not have enough memory to complete the operation.
Eoutofresources = Class (eoutofmemory)
Einvalidpointer = Class (eheapexception) tries to access a non-heap pointer

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I/O exception
Einouterror = Class (exception) DoS Input/Output Error

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Character conversion exception
An error occurred while converting the econverterror = Class (exception) number to a string or string to a number.

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Type conversion exception
Einvalidcast = Class (exception) type conversion exception

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Dumb exception
Eabort = Class (exception) generated by calling abort. No error prompt box is displayed.

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Stream exception
Estreamerror = Class (exception)
Efilestreamerror = Class (estreamerror)
Efcreateerror = Class (efilestreamerror) An error occurred while creating the file.
Efopenerror = Class (efilestreamerror) An error occurred while opening the file.
Efilererror = Class (estreamerror)
Ereaderror = Class (efilererror) cannot read data from the file stream
Ewriteerror = Class (efilererror) cannot write data to the file stream
The component in the eclassnotfound = Class (efilererror) window has been deleted.
Einvalidimage = Class (efilererror) cannot read resource files
Emethodnotfound = Class (efilererror)

Eresnotfound = Class (exception) cannot find the resource
Ebitserror = Class (exception) attempts to illegally access the Boolean Array
Elisterror = Class (exception) The index is out of the linked list.
Estringlisterror = Class (exception) string linked list (list box) out of bounds
Eparsererror = Class (exception) text to binary stream conversion error

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Common component exception
Einvalidoperation = Class (exception) indicates an invalid operation on the component. Cause: Try to perform some operations that require a window handle on the component whose parent attribute is nil, and try to drag and drop the form.
Ecomponenterror = Class (exception) cannot register or rename a component
Eoutofresources = Class (eoutofmemory) resources are insufficient. Cause: the operating system does not have any redundant handles to allocate.