/// <summary>
/// Initialize Dwm Composition parameters
/// </summary>
public void Init()
{
bool dwmEnabled;
DwmApi.DwmIsCompositionEnabled(out dwmEnabled);
IsDwmCompositionEnabled = dwmEnabled;
if (dwmEnabled)
{
uint color;
bool opaqueBlend;
DwmApi.DwmGetColorizationColor(out color, out opaqueBlend);
DwmColorizationColor = Color.FromArgb((int)color);
if (DwmColorizationColor.A < 100)
{
DwmColorizationColor = Color.FromArgb(100, DwmColorizationColor);
}
}
_bbParams = new DwmApi.DWM_BLURBEHIND();
_bbParams.dwFlags = DwmApi.DwmFlags.DWM_BB_ENABLE;
_bbParams.fEnable = true;
_bbParams.hRgnBlur = IntPtr.Zero;
}
private void ResetDwmBlurBehind()
{
OperatingSystem os = Environment.OSVersion;
if (enableGlass)
{
DwmApi.DWM_BLURBEHIND bbhOff = new DwmApi.DWM_BLURBEHIND();
bbhOff.dwFlags = DwmApi.DWM_BLURBEHIND.DWM_BB_ENABLE | DwmApi.DWM_BLURBEHIND.DWM_BB_BLURREGION;
bbhOff.fEnable = false;
bbhOff.hRegionBlur = IntPtr.Zero;
DwmApi.DwmEnableBlurBehindWindow(this.Handle, bbhOff);
}
}
public void ControlHostForm()
{
if (HostForm != null)
{
int lWinBorder = 2 * libUser32.GetSystemMetrics(libUser32.SM_CXSIZEFRAME);
if (Glass)
{
DwmApi.DwmEnableComposition(true);
DwmApi.DWM_BLURBEHIND BlurBehind = new DwmApi.DWM_BLURBEHIND();
BlurBehind.dwFlags = DwmApi.DWM_BLURBEHIND.DWM_BB_ENABLE;
BlurBehind.fEnable = true;
BlurBehind.hRegionBlur = IntPtr.Zero;
BlurBehind.fTransitionOnMaximized = false;
DwmApi.SetRenderingPolicy(HostForm.Handle, DwmApi.TDwmNCRenderingPolicy.Enabled);
DwmApi.DwmExtendFrameIntoClientArea(
HostForm.Handle,
new DwmApi.MARGINS(0, this.Height, 0, 0)
);
HostForm.ControlBox = true;
}
else
{
HostForm.FormBorderStyle = FormBorderStyle.None;
HostForm.MaximizeBox = true;
HostForm.MinimizeBox = true;
HostForm.ControlBox = true;
}
libUser32.SetWindowLong(HostForm.Handle, libUser32.GWL_STYLE, libUser32.MY_SIZEABLEBOX);
DwmApi.ExtendFrame(HostForm.Handle);
FormMenu = new ApplicationMenu(HostForm);
FormMenu.AppendItem("Restore");
FormMenu.AppendItem("Minimize");
FormMenu.AppendItem("Maximize");
FormMenu.AppendItem("-");
FormMenu.AppendItem("Close");
HostForm.MaximumSize = new Size(
lWinBorder + Screen.PrimaryScreen.WorkingArea.Width,
lWinBorder + Screen.PrimaryScreen.WorkingArea.Height
);
}
HostFormControlled = true;
}
/// <summary>
/// Removes the aero glass composition for this form depending on the form border style that the form had the last time the aero glass composition was enabled for it.
/// No checks and validation are made, so use it carefully.
/// </summary>
/// <returns>
/// If it succeeded, it returns 0 (DwmApi.HRESULT.S_OK), otherwise it returns the windows error code.
/// </returns>
protected DwmApi.HRESULT RemoveAeroGlassCompositionCore()
{
DwmApi.HRESULT hResult;
if (this.FormBorderStylePrevAeroGlassCompositionEnable.Value == FormBorderStyle.None)
{
DwmApi.DWM_BLURBEHIND dwm_blurBehind;
dwm_blurBehind = new DwmApi.DWM_BLURBEHIND(false);
hResult = this.DwmEnableBlurBehindWindow(ref dwm_blurBehind);
}
else
{
DwmApi.MARGINS margins;
margins = new DwmApi.MARGINS();
hResult = this.DwmExtendFrameIntoClientArea(ref margins);
}
return(hResult);
}
private void ResetDwmBlurBehind()
{
if (DwmApi.DwmIsCompositionEnabled())
{
DwmApi.DWM_BLURBEHIND bbhOff = new DwmApi.DWM_BLURBEHIND();
bbhOff.dwFlags = DwmApi.DWM_BLURBEHIND.DWM_BB_ENABLE | DwmApi.DWM_BLURBEHIND.DWM_BB_BLURREGION;
bbhOff.fEnable = false;
bbhOff.hRegionBlur = IntPtr.Zero;
DwmApi.DwmEnableBlurBehindWindow(this.Handle, bbhOff);
}
}
/// <summary>
/// Applies the aero glass composition using the 'BlurBehind' method (see https://msdn.microsoft.com/en-us/library/windows/desktop/aa969508%28v=vs.85%29.aspx).
/// No checks and validation are made, so use it carefully.
/// </summary>
/// <param name="pBlurBehind">
/// A 'DwmApi.DWM_BLURBEHIND' structure that provides blur behind data
/// </param>
/// <returns>
/// If it succeeded, it returns 0 (DwmApi.HRESULT.S_OK), otherwise it returns the windows error code.
/// </returns>
protected DwmApi.HRESULT DwmEnableBlurBehindWindow([In] ref DwmApi.DWM_BLURBEHIND pBlurBehind)
{
return(DwmApi.DwmEnableBlurBehindWindow(this.Handle, ref pBlurBehind));
}
public void ControlHostForm()
{
if (HostForm != null)
{
int lWinBorder = 2 * libUser32.GetSystemMetrics(libUser32.SM_CXSIZEFRAME);
if (Glass)
{
DwmApi.DwmEnableComposition(true);
DwmApi.DWM_BLURBEHIND BlurBehind = new DwmApi.DWM_BLURBEHIND();
BlurBehind.dwFlags = DwmApi.DWM_BLURBEHIND.DWM_BB_ENABLE;
BlurBehind.fEnable = true;
BlurBehind.hRegionBlur = IntPtr.Zero;
BlurBehind.fTransitionOnMaximized = false;
DwmApi.SetRenderingPolicy(HostForm.Handle, DwmApi.TDwmNCRenderingPolicy.Enabled);
DwmApi.DwmExtendFrameIntoClientArea(
HostForm.Handle,
new DwmApi.MARGINS(0, this.Height, 0, 0)
);
HostForm.ControlBox = true;
}
else
{
HostForm.FormBorderStyle = FormBorderStyle.None;
HostForm.MaximizeBox = true;
HostForm.MinimizeBox = true;
HostForm.ControlBox = true;
}
libUser32.SetWindowLong(HostForm.Handle, libUser32.GWL_STYLE, libUser32.MY_SIZEABLEBOX);
DwmApi.ExtendFrame(HostForm.Handle);
FormMenu = new ApplicationMenu(HostForm);
FormMenu.AppendItem("Restore");
FormMenu.AppendItem("Minimize");
FormMenu.AppendItem("Maximize");
FormMenu.AppendItem("-");
FormMenu.AppendItem("Close");
HostForm.MaximumSize = new Size(
lWinBorder + Screen.PrimaryScreen.WorkingArea.Width,
lWinBorder + Screen.PrimaryScreen.WorkingArea.Height
);
}
HostFormControlled = true;
}
