There are some useful new calls in the latest build, that are not fully documented yet. They let you check what the devices DPI setting is properly.
SYSINFO(number) SYSINFO returns information about the device. This is not a complete list of return values: see Microsoft's documentation on GetSystemMetrics and GetDeviceCaps for more. SM_CXSCREEN 0 Width of screen SM_CYSCREEN 1 Height of screen SM_CXVSCROLL 2 Width of arrow bitmap on vertical scroll bar SM_CYHSCROLL 3 Height of arrow bitmap on horizontal scroll bar SM_CYCAPTION 4 Height of caption or title SM_CXDLGFRAME 7 Width of dialog frame window SM_CYDLGFRAME 8 Height of dialog frame window SM_CYMENU 15 Height of menu SM_CXFULLSCREEN 16 Width of window client area SM_CYFULLSCREEN 17 Height of window client area SM_CYVSCROLL 20 Height of arrow bitmap on horizontal scroll bar SM_CXVSCROLL 21 Height of arrow bitmap on vertical scroll bar HORZREZ 108 HiRes Display width pixels VERTREZ 109 HiRes Display height pixels BITSPIXEL 112 Bits per pixel NUMCOLORS 124 Number of colors LOGPIXELSX 188 Pixels per inch horizontal LOGPIXELSY 190 Pixels per inch vertical Example REM SYSINFO Example MSGBOX "The device's DPI is " & sysInfo(188) Output The device's DPI is 96. >I've noticed that while some controls return "dimensional" properties in >Twips and most expect such properties in Pixels there is a need to >determine the TwipsPerPixel value - which can vary. However I haven't >found a clean way to get this value from API calls since Output.hDC >doesn't exist and nothing seems to be built into NS Basic/CE (or I've >missed it). > >According to http://windowsteamblog.com/blogs/windowsphone/archive/ >2009/09/02/widget-anatomy-the-keys-for-a-great-user-experience.aspx a >rough aproximation can be achieved by dividing the world into 96 DPI and >192 DPI devices. > >This would let me do something like: > >If Output.Width >= 480 Then > TwipsPerPixel = 7.5 >Else > TwipsPerPixel = 15 >End If > >Is this more or less what people are doing? Is there an alternative? >Have I missed some general guidelines on Hi DPI device support someplace? > > > >------------------------------------ > >Yahoo! Groups Links > > > -- You received this message because you are subscribed to the Google Groups "nsb-ce" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/nsb-ce?hl=en.
