疑問 - 如何在URLDownloadToFile下載時得知進度

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作者: mraaa711128

是什麼樣情況下會發生溢位
可否說明一下??
是跑到最後了才發生
還是不一定??

ProgressBar1.Value = CInt(100 * (ulProgress / ulProgressMax))
是這一行會發生錯誤,照理說ulProgressMax應該會比ulProgress大
但事實跑起來並不然,使得我的ProgressBar1.Value 的值超出100而超出範圍造成錯誤
而且從頭到尾的數值改變只有變動一次...我把我Debug 印的PO上來好了

[1] Progress event received: 0 of 0, StatusCode: 34
[2] Progress event received: 0 of 0, StatusCode: 1
[3] Progress event received: 0 of 0, StatusCode: 2
[4] Progress event received: 0 of 0, StatusCode: 11
[5] Progress event received: 0 of 0, StatusCode: 24
[6] Progress event received: 0 of 0, StatusCode: 13
[7] Progress event received: 6779 of 3115, StatusCode: 4
[8] Progress event received: 6779 of 3115, StatusCode: 14
[9] Progress event received: 6779 of 3115, StatusCode: 6

以上就是我Debug印出來的狀態