Programatically activating accessibility options.

[aaronmcgranaghan]

Hi, I have another accessibility question:

Is there anyway I can programatically set the accessibility options in the accessibility menu? Such as "Use Windows Color Scheme"? Or "Use Predefined High-Contrast Color Scheme" ?

If this is not possible, is it possible to programatically set the colour of the page background and the colour of the text?

Thanks.

[Stefan - PDF-XChange]

Hi aaronmcgranaghan,

I am not aware of any way to achieve this, but have passed your question to one of the interface specialists and we will post back here as soon as we have any further info.

Best,
Stefan

[Vasyl - PDF-XChange]

Hi, Aaron.

You may use next way (undocumented):

Code: Select all

pdfViewer.SetProperty("PageDisplay.Colors.Overrides.Use", "true", 0); // to enable color overriding

// to enable the "Use Windows Color Sheme"
pdfViewer.SetProperty("PageDisplay.Colors.Overrides.Mode", "Windows", 0);

// OR to setup "Predefined High-Contrast..."
pdfViewer.SetProperty("PageDisplay.Colors.Overrides.Mode", "Predefined", 0);

pdfViewer.SetProperty("PageDisplay.Colors.Overrides.Predefined", "WhiteTextOnBlack", 0);
// possible values: "GreenTextOnBlack", "YellowTextOnBlack", "WhiteTextOnBlack", "BlackTextOnWhite"

// and trick to apply these changes in runtime:
pdfViewer.SetProperty("PageDisplay.BoxesAlpha", 0.5, 0);
pdfViewer.SetProperty("PageDisplay.BoxesAlpha", 1.0, 0); // restore normal value

HTH

[aaronmcgranaghan]

Hi, Aaron.

You may use next way (undocumented):

Code: Select all

pdfViewer.SetProperty("PageDisplay.Colors.Overrides.Use", "true", 0); // to enable color overriding

// to enable the "Use Windows Color Sheme"
pdfViewer.SetProperty("PageDisplay.Colors.Overrides.Mode", "Windows", 0);

// OR to setup "Predefined High-Contrast..."
pdfViewer.SetProperty("PageDisplay.Colors.Overrides.Mode", "Predefined", 0);

pdfViewer.SetProperty("PageDisplay.Colors.Overrides.Predefined", "WhiteTextOnBlack", 0);
// possible values: "GreenTextOnBlack", "YellowTextOnBlack", "WhiteTextOnBlack", "BlackTextOnWhite"

// and trick to apply these changes in runtime:
pdfViewer.SetProperty("PageDisplay.BoxesAlpha", 0.5, 0);
pdfViewer.SetProperty("PageDisplay.BoxesAlpha", 1.0, 0); // restore normal value

HTH

Thanks, that works perfect!

[Stefan - PDF-XChange]