在 c# 中平滑地将一种颜色更改为另一种颜色的最佳方法是什么。我的程序根据电池电量更改用户的配色方案。
我当前的代码
private void greater75_Tick(object sender, EventArgs e)
{
if (Environment.OSVersion.Version.Major >= 6 && DwmIsCompositionEnabled())
{
PowerStatus ps = SystemInformation.PowerStatus;
if (ps.BatteryLifePercent >= 0.75)
{
ChangeCol.clrAfterGlow = 5;
ChangeCol.clrColor = ColorToBgra(Color.Green);
ChangeCol.nIntensity += 1;
DwmSetColorizationParameters(ref ChangeCol, false);
}
if (ps.BatteryLifePercent < 0.75)
{
ChangeCol.clrAfterGlow = 5;
ChangeCol.clrColor = ColorToBgra(Color.Blue);
ChangeCol.nIntensity += 1;
DwmSetColorizationParameters(ref ChangeCol, false);
}
}
}
此代码使用此结构和方法来修改用户的系统颜色。
public DWM_COLORIZATION_PARAMS ChangeCol;
public struct DWM_COLORIZATION_PARAMS
{
public uint clrColor;
public uint clrAfterGlow;
public uint nIntensity;
public uint clrAfterGlowBalance;
public uint clrBlurBalance;
public uint clrGlassReflectionIntensity;
public bool fOpaque;
}
[DllImport("dwmapi.dll", EntryPoint = "#127", PreserveSig = false)]
private static extern void DwmGetColorizationParameters(out DWM_COLORIZATION_PARAMS parameters);
[DllImport("dwmapi.dll", EntryPoint = "#131", PreserveSig = false)]
private static extern void DwmSetColorizationParameters(ref DWM_COLORIZATION_PARAMS parameters,
bool unknown);
// Helper method to convert from a Win32 BGRA-format color to a .NET color.
private static Color BgraToColor(uint color)
{
return Color.FromArgb(Int32.Parse(color.ToString("X"), NumberStyles.HexNumber));
}
// Helper method to convert from a .NET color to a Win32 BGRA-format color.
private static uint ColorToBgra(Color color)
{
return (uint)(color.B | (color.G << 8) | (color.R << 16) | (color.A << 24));
}
[DllImport("dwmapi.dll", PreserveSig = false)]
public static extern bool DwmIsCompositionEnabled();
// Gets or sets the current color used for DWM glass, based on the user's color scheme.
public static Color ColorizationColor
{
get
{
// Call the DwmGetColorizationParameters function to fill in our structure.
DWM_COLORIZATION_PARAMS parameters;
DwmGetColorizationParameters(out parameters);
// Convert the colorization color to a .NET color and return it.
return BgraToColor(parameters.clrColor);
}
set
{
// Retrieve the current colorization parameters, just like we did above.
DWM_COLORIZATION_PARAMS parameters;
DwmGetColorizationParameters(out parameters);
// Then modify the colorization color.
// Note that the other parameters are left untouched, so they will stay the same.
// You can also modify these; that is left as an exercise.
parameters.clrColor = ColorToBgra(value);
// Call the DwmSetColorizationParameters to make the change take effect.
DwmSetColorizationParameters(ref parameters, false);
}
}
问题是，在设置颜色时，在将其设置为 0 后，使其强度每 0.1 秒增加一个，当为 0 时，强度为 BLACK ，我希望对新颜色进行某种“平滑”过渡，以便它不会突然分散用户的注意力。