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新增窗体阴影

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玉佳 2020-09-21 16:35:34 +08:00
parent bd808e56c9
commit 69aabea62e
6 changed files with 122 additions and 4 deletions
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Bin/SunnyUI.dll
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Bin/SunnyUI.pdb
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SunnyUI.Demo/Bin/SunnyUI.Demo.exe
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SunnyUI.Demo/Bin/SunnyUI.dll
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SunnyUI.Demo/FMain.Designer.cs generated
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@ -108,6 +108,7 @@
this.Padding = new System.Windows.Forms.Padding(2, 35, 2, 2);
this.ShowDragStretch = true;
this.ShowRadius = false;
this.ShowShadow = true;
this.Text = "SunnyUI.Net";
this.Header.ResumeLayout(false);
this.ResumeLayout(false);

125
SunnyUI/Forms/UIForm.cs
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@ -1036,7 +1036,10 @@ namespace Sunny.UI
[DefaultValue(true)]
public bool ShowRadius
{
get => _showRadius;
get
{
return (_showRadius && !_showShadow);
}
set
{
_showRadius = value;
@ -1045,6 +1048,89 @@ namespace Sunny.UI
}
}
/// <summary>
/// 是否显示阴影
/// </summary>
private bool _showShadow = false;
#region 边框阴影
/// <summary>
/// 是否显示阴影
/// </summary>
[Description("是否显示阴影"), Category("SunnyUI")]
[DefaultValue(false)]
public bool ShowShadow
{
get => _showShadow;
set
{
_showShadow = value;
Invalidate();
}
}
[DllImport("dwmapi.dll")]
public static extern int DwmExtendFrameIntoClientArea(IntPtr hWnd, ref MARGINS pMarInset);
[DllImport("dwmapi.dll")]
public static extern int DwmSetWindowAttribute(IntPtr hwnd, int attr, ref int attrValue, int attrSize);
[DllImport("dwmapi.dll")]
public static extern int DwmIsCompositionEnabled(ref int pfEnabled);
private bool m_aeroEnabled = false;
private const int CS_DROPSHADOW = 0x00020000;
private const int WM_NCPAINT = 0x0085;
public struct MARGINS
{
public int leftWidth;
public int rightWidth;
public int topHeight;
public int bottomHeight;
}
private bool CheckAeroEnabled()
{
if (Environment.OSVersion.Version.Major >= 6)
{
int enabled = 0;
DwmIsCompositionEnabled(ref enabled);
return enabled == 1;
}
return false;
}
/*protected override void WndProc(ref Message m)
{
if (ShowShadow)
{
switch (m.Msg)
{
case WM_NCPAINT:
if (m_aeroEnabled)
{
var v = 2;
DwmSetWindowAttribute(this.Handle, 2, ref v, 4);
MARGINS margins = new MARGINS()
{
bottomHeight = 0,
leftWidth = 0,
rightWidth = 0,
topHeight = 1
};
DwmExtendFrameIntoClientArea(this.Handle, ref margins);
}
break;
default:
break;
}
}
base.WndProc(ref m);
}*/
#endregion
/// <summary>
/// 是否重绘边框样式
/// </summary>
@ -1220,11 +1306,18 @@ namespace Sunny.UI
{
get
{
if (base.FormBorderStyle == FormBorderStyle.None)
m_aeroEnabled = CheckAeroEnabled();
CreateParams cp = base.CreateParams;
if (!m_aeroEnabled) cp.ClassStyle |= CS_DROPSHADOW;
//---
if (this.FormBorderStyle == FormBorderStyle.None)
{
// 当边框样式为FormBorderStyle.None时
// 点击窗体任务栏图标，可以进行最小化
CreateParams cp = base.CreateParams;
cp.Style |= 0x00020000;
const int WS_MINIMIZEBOX = 0x00020000;
cp.Style = cp.Style | WS_MINIMIZEBOX;
return cp;
}
else
@ -1294,6 +1387,30 @@ namespace Sunny.UI
m.Result = (IntPtr)WM_BOTTOM;
}
}
if (ShowShadow)
{
switch (m.Msg)
{
case WM_NCPAINT:
if (m_aeroEnabled)
{
var v = 2;
DwmSetWindowAttribute(this.Handle, 2, ref v, 4);
MARGINS margins = new MARGINS()
{
bottomHeight = 0,
leftWidth = 0,
rightWidth = 0,
topHeight = 1
};
DwmExtendFrameIntoClientArea(this.Handle, ref margins);
}
break;
default:
break;
}
}
}
#endregion
}