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There are 2 different copy functions.
Definition (Delphi 6):
function Copy(S; Index, Count: Integer): string; function Copy(S; Index, Count: Integer): array;
Copy function is used to copy a substring from source String(S).
The result is a substring which starts at the given Index and Count is length of the substring.
Copy function is used to copy a subarray from the source array(S).
The result is a subarray which starts at the given Index and Count is number of elements to copy from the source array.
The Copy function structure are:: Copy( String,Index,Count );
The Copy function contents are:: Copy( String,Integer,Integer );
- Copy: Calls the function
- String: Text content passed to be copyed
- Index: Start position by character where the function must to start count the copy function
- Count: Number of characters to be copyed within the function as the result.
More complicated combinations of code can work better any possible results for your projects.
Examples must have on the form one or more TEdit and TButton components with its default names.
- Edit1 must have a text set for 'Testing the Copy function';
- for test the examples copy and paste the codes on the OnClick event for Button1.
Using the Copy function.Edit
This function will copy part of a text from Edit1
and show the result in a message function.
ShowMessage( Copy( Edit1.text, 1, 7 );
//Show in result the word "Testing"
ShowMessage( Copy( Edit1.text, 18, 8 );
//Show in result the word "function"
No aditional information.