I have a maui app with blazor and I'm creating a custom titlebar.
I about to close the maui app, using on blazor Application.Current.Quit();
Now how can i minimize and move maui app
My code blazor
private void MoveWindow()
{
}
private void MinimizeWindow()
{
}
private void CloseWindow() {
Application.Current.Quit();
}
Maui already has a function to minimize the application.
Use the following in your blazor:
private void MinimizeWindow()
{
#if WINDOWS
var Window = App.Current.Windows.First();
var nativeWindow = Window.Handler.PlatformView;
IntPtr windowHandle = WinRT.Interop.WindowNative.GetWindowHandle(nativeWindow);
WindowId WindowId = Win32Interop.GetWindowIdFromWindow(windowHandle);
AppWindow appWindow = AppWindow.GetFromWindowId(WindowId);
var p = appWindow.Presenter as OverlappedPresenter;
p.Minimize();
#endif
}
You need to call native code for that.
Add a reference to PInvoke.User32 package:
<PackageReference Include="PInvoke.User32" Version="0.7.104" Condition="$([MSBuild]::IsOSPlatform('windows'))"/>
As an example upon a button click we minimize the window:
void MinimizeWindow(object sender, EventArgs e)
{
#if WINDOWS
var mauiWindow = App.Current.Windows.First();
var nativeWindow = mauiWindow.Handler.PlatformView;
IntPtr windowHandle = WinRT.Interop.WindowNative.GetWindowHandle(nativeWindow);
PInvoke.User32.ShowWindow(windowHandle, PInvoke.User32.WindowShowStyle.SW_MINIMIZE);
#endif
}
void MoveWindow(object sender, EventArgs e)
{
#if WINDOWS
var mauiWindow = App.Current.Windows.First();
var nativeWindow = mauiWindow.Handler.PlatformView;
IntPtr windowHandle = WinRT.Interop.WindowNative.GetWindowHandle(nativeWindow);
PInvoke.RECT rect;
PInvoke.User32.GetWindowRect(windowHandle, out rect);
(var width, var height) = GetWinSize(rect);
PInvoke.User32.MoveWindow(windowHandle, 50, 0, width, height, true);
#endif
}
(int width, int height) GetWinSize(PInvoke.RECT rect) =>
(rect.right - rect.left, rect.bottom - rect.top);
It's possible to resize the window with MoveWindow(), but since the aim in the question is to move the window only, then we supply the values of the current window's width and height as parameters.
Ps: Unfortunately I didn't find a simpler solution to get the window dimensions.
A better alternative is to use AppWindow.Move(PointInt32):
#if WINDOWS
WindowId WindowId = Win32Interop.GetWindowIdFromWindow(windowHandle);
AppWindow appWindow = AppWindow.GetFromWindowId(WindowId);
appWindow.Move(new Windows.Graphics.PointInt32(x,y))
#endif
x and y are the coordinate for the desired new position. The origin (0,0) is the left upper corner of the screen.
For information about the screen dimensions:
var mainDisplayInfo = DeviceDisplay.MainDisplayInfo;