enable_high_dpi_support Property

In This Topic

Description

Enables High DPI support for both the ActiveX host process and CEF3 processes.

Property type

Read-write property

Syntax

Visual Basic
Public Property enable_high_dpi_support As Boolean

Return Type

Boolean, default is false.

Remarks

WebKitX ActiveX is an in-process ActiveX Control that uses out-of-process CEF3 processes for rendering HTML5.

If you wish to support High DPI monitors you must enable High DPI support to both your executable and CEF3 executables.

To enable High DPI support for both your executable host process and CEF3 you need to set this property to true.

However, this might affect your other components in your Forms; typically you should enable Hidh DPI support when your application starts, either programmatically or by using a Manifest. As a curtsey for legacy programming languages, WebKitX API provides method EnableHighDPISupport that can be called when your application starts.

Please note that High DPI support is not possible from within legacy IDE such as Visual Basic 6.0, and you should really enable it in compiled executables only.

Example

Example (Visual Basic)

Option Explicit

Private Sub Form_Load()

    ' Enable High DPI support in current process.
    ' This will work with compiled executable but not VB6 IDE
    
    'WebKitX1.EnableHighDPISupport
    
End Sub

Private Sub Form_Resize()
    On Error Resume Next
    WebKitX1.Move 0, 0, ScaleWidth, ScaleHeight
    Err.Clear
End Sub

Private Sub WebKitX1_OnCreate(ByVal Settings As WebKitXCEF3Lib.ISettings, CommandLineSwitches As String)
    
    Settings.plugins = False
    Settings.cache_path = App.Path + "\MyCache"
    Settings.application_cache = App.Path + "\MyAppCache"
    Settings.persist_session_cookies = 1
    Settings.persist_user_preferences = 1
    
    ' Enable High DPI support on both current process and CEF3
    Settings.enable_high_dpi_support = True
    
    CommandLineSwitches = "" 'defaults
    
End Sub

Private Sub WebKitX1_OnBrowserReady()
    WebKitX1.Open "https://www.google.com"
End Sub