Languages :: Visual Basic :: Copying Arrays |
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By: Rj  |
Date: 03/10/2003 00:00:00  |
Points: 300 | Status: Answered Quality : Excellent |
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I have a byte array. How do I copy it to another array of same type. I need the program in visual basic 6.0 |
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| By: Rj | Date: 03/10/2003 21:58:00 | |
Type : Comment |
| Quite urgent. |
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| By: VGR | Date: 03/10/2003 22:19:00 | |
Type : Assist |
| you do a for(i) loop and copy firstarray to newarray... |
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| By: Rj | Date: 03/10/2003 22:26:00 | |
Type : Comment |
| Ummm..,....I am sorry for not mentioning before. Its too slow when I try that. I need a quick way. This byte array is quite big. |
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| By: Arthur_Wood | Date: 03/10/2003 22:40:00 | |
Type : Answer |
| there is no other way. You MUST copy each entry form one array to the other. If you try to simply set NewArray = OldArray, New Array will hold a REFERENCE to the OldArray. AW |
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| By: stoliD | Date: 03/10/2003 23:15:00 | |
Type : Assist |
| thats right. All you could do is set two different variables to the same pointer to your byte-array. Else you would need to copy every single element. Perhaps you could explain what u need this copy for, and if you need a complete copy.... maybe you could share the code... and well find another solution. |
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| By: Rj | Date: 04/10/2003 00:12:00 | |
Type : Comment |
| Private Declare Sub CopyMemory Lib "KERNEL32" Alias "RtlMoveMemory" ( hpvDest As Any, hpvSource As Any, ByVal cbCopy As Long) This was one suggestion given in another forum. Itried using this but it gives a memory error. |
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| By: johnQuestion | Date: 05/10/2003 01:42:00 | |
Type : Comment |
| You might want to try this, if your array is 20 elements long, then run a loop to transfer the data: Dim Array1(1 to 20) As Single 'array with data Dim Array2(1 to 20) As Single 'array w/o data Dim i As integer For i = 1 to 20 Array2(i) =Array1(i) Next i |
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| By: GHehmann | Date: 09/10/2003 04:09:00 | |
Type : Comment |
the declaration from the sub is wrong Public Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (Destination As Any, Source As Any, ByVal Length As Long) |
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| By: johnQuestion | Date: 09/10/2003 06:43:00 | |
Type : Comment |
| single would be used for numbers, string for letters and words, what are you using? There are also double, integer that are commonly used |
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