SetCompatibleTextRenderingDefault in .NET Class Library containing a form

Question

Hi

I have a .net class library with a com class that calls a form. I want to to SetCompatibleTextRenderingDefault(false) to ensure the form fonts look nice.

If I run the command in the class constructor I get the following error: SetCompatibleTextRenderingDefault must be called before the first IWin32Window object is created in the application.

Where can/should I run this? Surely there is no earlier place than sub New!

Thank in advance

Jon

Edit1: To clarify, I get this error when initiating the class from a .net test harness, if I call it from a VB6 app then I simply get "Automation Error"

Edit2: Is the answer that I cannot use SetCompatibleTextRenderingDefault in a com class when calling from a vb6 app?? Maybe it's the "parent" app that needs to call this method and as such a vb6 app cannot?

Edit3: Maybe I am asking this question in the wrong way! - Maybe the question is: how can I make the fonts look nice in a .net class library form called from a vb6 app?

Answer 1

Place this inside the application startup code before the first window is created. Under C# this would be the main routine that then creates the initial window.

Answer 2

A possible workaround would be to set the property manually on all buttons and labels in the form constructor:

public Form1()
{
    InitializeComponent();
    DisableCompatibleTextRendering(this);
}

private static void DisableCompatibleTextRendering(Control c)
{
    var button = (c as ButtonBase);
    var label = (c as Label);

    if (button != null)
    {
        button.UseCompatibleTextRendering = false;
    }

    if (label != null)
    {
        label.UseCompatibleTextRendering = false;
    }

    foreach (var child in c.Controls.Cast<Control>())
    {
        DisableCompatibleTextRendering(child);
    }
}