Determining Device Capabilities

Once you have created a device context for a particular output device, you can determine the capabilities of that device by calling DevQueryCaps. This function retrieves the following information:

• Device technology (whether the device is a raster or vector device)
  
• Maximized window dimensions (if the device is a video display)
  
• Page dimensions (if the device is a printer or plotter)
  
• Character-box dimensions
  
• Marker-box dimensions
  
• Pel resolution
  
• Color capabilities
  
• Mix-mode capabilities

You can use this information, for example, to select fonts, set up the presentation page, or create a new logical color table.