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Article ID: KWin0038 - Updated 4/4/2007
The amount of information that can be displayed on any given RDPWin screen, text clarity and size, is determined by the native screen resolution, DPI setting, Window size, and operating system. Each of these factors can be different for every workstation, which can result in an inconsistent presentation of information. Prior to purchase of new flat screen monitors, it is critical to decide how much information you want to display on the screen, and the text size of that information.
As the native screen resolution of a laptop or flat screen monitor increases, the amount of data that can be displayed is increased and the text size is decreased. At very high native resolutions, such as 1900 x 1400, there will be a great deal of information displayed on the screen, however it may be so small as to be unreadable by many people. Unfortunately, if the native resolution of the flat screen is high, there is no way to configure it to show less information with larger text, without creating a "fuzzy screen". As a result, it is critical to purchase laptop computers or flat screen monitors with the correct native resolution based on your preferred text size.
RDP requires a minimum screen resolution of 1024 x 768.
For very clear, reasonable size text, we suggest purchasing laptops or flat
screens with a native resolution no higher than 1024 x 768. Higher native
resolution flat screen monitors can be purchased, but will show more information
using smaller text. The relationship between these factors is explained below.
| Factor | RDP Requirement | Explanation |
|---|---|---|
| Screen Resolution | 1024 x 768 minimum | RDPWin requires a minimum screen resolution of 1024 x 768. At this resolution all critical system data is displayed without the user having to scroll the screen. If the resolution is increased beyond 1024 x 768, more data can be displayed on any given screen, but will appear progressively smaller as the resolution is increased. See "Issues with High Screen Resolution" below. |
| Aspect Ratio | 4 x 3
Preferred over Widescreen |
Monitors have traditionally had an aspect ratio of 4:3. For example, 1024/768 reduces to 4/3. RDPWin will look best on monitors with the Standard Aspect Ratio of 4:3, running at a resolution of 1024 x 768 at 96DPI. Widescreen aspect ratio (14:9) can be used, however RDPWin will appear "Stretched". |
| DPI (Dots per Inch) | Windows XP - 96 DPI Only | Microsoft Windows standard is 96 dots per inch
(DPI), and 96 DPI is the only supported DPI by
RDPWin when using Windows XP. If a DPI higher than 96
is used, the data will not "fit" properly in the fields.
For an example, please see "High DPI
and Windows XP not Supported".
Note: DPI settings greater than 96 will be allowed with Windows Vista. See "Using higher DPI settings with Windows Vista". |
| Window Size | Use Full Screen | When using a resolution of 1024 x 768 with 96DPI, RDPWin should be in "full screen" mode, not a "smaller window". See "Full Screen Sample" below. |
| Operating System | Windows XP Now Vista In the Future |
RDPWin currently only supports Windows XP Professional. We will be releasing Vista Support soon. See "RDP plans for Microsoft Vista". With Windows XP, you must use 96 DPI, and only 96 DPI, or the screens will not format correctly. Resolutions higher than 96 DPI will be supported with Vista. See: |
Microsoft Windows standard is 96 dots per inch (DPI), and 96 DPI is the only supported DPI by RDPWin when using Windows XP. If a DPI higher than 96 is used in RDPWin with Windows XP, data will not "fit" properly in the fields. The example below is using Windows XP at a screen resolution of 1280 x 1024 and a 120 DPI. Notice how the data in the fields at the bottom doesn't fit correctly. This problem is accentuated as the DPI increases in Windows XP. This problem has been solved by Microsoft with Windows Vista. See: Using higher DPI settings with Windows Vista"
 |
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Sample Screen at 1024 x 768 with 96 DPI, Full Screen |
|---|
| The example below is with a screen resolution of 1024 x 768 with the
standard 96 DPI setting, with a "full screen" window.
Notice how 4 weeks of data is displayed on the tape chart without
scrolling. RDP suggests always
using RDPWin in a full screen when at 1024 x 768 at 96 DPI.
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Sample Screen at 1024 x 768 with 96 DPI, Small Window (not full screen) |
| The example below is with a screen resolution of 1024 x 768 with the
standard 96 DPI setting, but in a smaller window, not using "full
screen". In this case much less data is displayed, and
significant scrolling is required. To avoid these problems, RDP
suggests always using RDPWin in a full screen when at 1024 x 768 at 96
DPI.
|
RDPWin, and other Windows products, do not display correctly with Windows XP at a DPI higher than 96, as demonstrated above. Many laptop computers and flat screen monitors now come with a very high native resolution, such as 1440 x 900 or higher. As the resolution increases, RDPWin can show more data per screen, but the data is very small. To increase the size of the data displayed in RDPWIN when using Microsoft Vista the following options are available. RDP suggests trying both to see which creates the best image for your workstations.:
With both XP and Vista, you can decrease the screen resolution to 1024 x 768, and leave the DPI at 96. However, this will produce a "fuzzy" screen on laptops and flat screen monitors, since they are designed to "look best" at their high, native resolution.
If using Vista, you can leave the screen resolution at the "native, high resolution", such as 1440 x 900, and then adjust the DPI higher, such as 120DPI or more. This will make the text larger, but may still leave a "fuzzy" image. The best way to have larger text that is clear is to purchase flat screen monitors at a native resolution of 1024 x 768, no higher. If you do elect to use a higher DPI setting in Windows Vista, make sure the data "fits" in the fields correctly you must always uncheck the Vista option for "use Windows XP style DPI scaling" when changing the DPI in Vista. This setting is found in the "custom DPI setting" in Vista as seen below. Also see "RDP Plans for Microsoft Vista Support".
 |
For more information on Custom DPI scaling in Vista, see the following Microsoft Article:
http://msdn2.microsoft.com/en-us/library/aa970067.aspx
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