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) GreenArea = (Int(FillEndColor / &H100) And &HFF) - (Int(FillStartColor / &H100) And &HFF) RedArea = (FillEndColor And &HFF) - (FillStartColor And &HFF) For i = itemRect.Left To itemRect.Right - 1 red = Int(FillStartColor And &HFF) + Int((i - itemRect.Left) / (itemRect.Right - itemRect.Left + 1) * RedArea) green = (Int(FillStartColor / &H100) And &HFF) + Int((i - itemRect.Left) / (itemRect.Right - itemRect.Left + 1) * GreenArea) blue = Int(FillStartColor / &H10000) + Int((i - itemRect.Left) / (itemRect.Right - itemRect.Left + 1) * BlueArea) hPen = CreatePen(PS_SOLID, 1, RGB(red, green, blue)) Call SelectObject(.hdc, hPen) Call MoveToEx(.hdc, i, itemRect.Top, 0) Call LineTo(.hdc, i, itemRect.Bottom) Call DeleteObject(hPen) Next i Case ISFS_VERTICALCOLOR '''' 垂直渐变色 BlueArea = Int(FillEndColor / &H10000) - Int(FillStartColor / &H10000) GreenArea = (Int(FillEndColor / &H100) And &HFF) - (Int(FillStartColor / &H100) And &HFF) RedArea = (FillEndColor And &HFF) - (FillStartColor And &HFF) For i = itemRect.Top To itemRect.Bottom - 1 red = Int(FillStartColor And &HFF) + Int((i - itemRect.Top) / (itemRect.Bottom - itemRect.Top + 1) * RedArea) green = (Int(FillStartColor / &H100) And &HFF) + Int((i - itemRect.Top) / (itemRect.Bottom - itemRect.Top + 1) * GreenArea) blue = Int(FillStartColor / &H10000) + Int((i - itemRect.Top) / (itemRect.Bottom - itemRect.Top + 1) * BlueArea) hPen = CreatePen(PS_SOLID, 1, RGB(red, green, blue)) Call SelectObject(.hdc, hPen) Call MoveToEx(.hdc, itemRect.Left, i, 0) Call LineTo(.hdc, itemRect.Right, i) Call DeleteObject(hPen) << 上一页 [11] [12] [13] [14] [15] [16] 下一页
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