Special/TWAIN

 

Special options

 

Count the number of colors for deep color images If set, PMView will calculate the number of distinct color hues in a loaded image. The color count is recalculated whenever you update an image in a way that changes its color information (e.g. resizing with resampling). Note that enabling this option makes PMView somewhat slower. The noticeable degree of slowdown highly depends on the way you use PMView. If you load images one at a time and you have a reasonably fast CPU, you can use this option without noticing a difference. If you on the other hand prefer to simultaneously start a dozen PMView sessions from the OS shell the slowdown may be significant (up to 30%) and thus you may opt to not use this option.

 

Use idle time priority If set, PMView will use below-normal priority when it loads thumbnails and when you run batch conversions. Generally this gives smoother overall performance since PMView will easily give up CPU time to other programs that need it. However, this could potentially be a problem if you are running "CPU hogging" programs that require lots of CPU power to run. (Potential CPU hogging programs are for instance DOS programs and older games). In this case PMView may seem to get "stuck" or process files very slowly since it is giving away all its CPU time to the hogs. If this is the case, you may want to disable idle-time loading. Otherwise, we recommend that you leave it on.

 

Note: This option is off by default if PMView is installed on the Windows 95/98/ME family of operating systems. It is on by default in the Windows NT/2000/XP family of operating systems.

 

Do not move files to the Recycle Bin If set, PMView will remove files from your disk as soon as you delete them. If not set, the items you delete are moved to the Recycle Bin.

 

Dynamically change the PMView program icon If set, PMView will change its program icon to an icon of the currently loaded file. If no file is currenctly loaded, the standard PMView icon is displayed. If not set, PMView will not change the icon and always display the standard icon.

 

TWAIN options

 

Use buffered memory transfer If set, PMView will use the more efficient TWSX_MEMORY transfer method that transfers the image in chunks in buffered memory. If not set, PMView will use the TWSX_NATIVE transfer method that transfer the complete image via a device independent bitmap (DIB).

 

Float on top If set, the TWAIN dialog will always stay on top of PMView's main window. Note that it is up to the TWAIN driver if it respects this setting or not. The setting only specifies what parent window handle PMView passes on to the TWAIN driver. Consequently some TWAIN drivers will never stay on top of PMView's window even if this option is enabled. Other drivers may do the opposite and always stay on top. This is not a bug, it is just depends on how your TWAIN vendor decided to implement their driver.

 

Close user interface after scanning If set, the TWAIN dialog will be closed when scanning is complete. If not set, the dialog will be left open. Note that it is up to the TWAIN driver if it respects this setting or not. Some TWAIN drivers may require that the interface is closed after scanning and will close the interface regardless of this setting. Other drivers may do the opposite and always keep the interface displayed until the user explicitly dismisses it.