SystemParametersInfo

SystemParametersInfo

Open32 NLS Extension supports the following parameter flags additionally to SBCS Open32.

SPI_GETDEFAULTINPUTLANG
SPI_SETDEFAULTINPUTLANG
SPI_GETICONMETRICS
SPI_GETICONTITLELOGFONT
SPI_GETNONCLIENTMETRICS

Functional Difference from WIN95
SPI_GETNONCLIENTMETRICS

iTitleWrap in NONCLIENTMETRICS structure always contains FALSE (zero) upon return because OS/2 does not have capability to wrap icon text automatically.

lfSmCaptionFont in NONCLIENTMETRICS structure is not applicable on OS/2. Open32 always returns the same value as lfCaptionFont for this item.

Functional Difference from SBCS Open32

N/A. The above system parameters are all new to SBCS Open32.

Implementation

For all LOGFONT structures returned by SPI_GETICONMETRICS and CPI_GETNONCLIENTMETRICS, please refer to the System Predefined Fonts, Fonts for Graphical User Interface Visual Elements section of the Font chapter. The following description only focuses on the elements that are not described in that font section.

• SPI_GETICONMETRICS

  For the in FONTMETRICS structure, see the font section described above. For other elements, iHorxSpacing,iVertSpacing,iTitleWarp,Open32 utilizes the following

   --------------------------------------------------
     ICONMETRICS                 Option
   --------------------------------------------------
     iHorzSpacing          <==== SM_CXICON
     iVertSpacing          <==== SM_CYICON
     iTitleWrap            <==== N/A. Returns always FALSE.
   --------------------------------------------------
  

• SPI_GETICONTITLELOGFONT

  See the font section described above.

• SPI_GETNONCLIENTMETRICS

  For the lfCaptionFont, lfSmCaptionFont, lfStatusFont, lfMessageFont, lfMenuFont in the NONCLIENTMETRICS structure, see the font section described above. For other elements, iBorderWidth, iScrollWidth, iScrollHeight, iCaptionWidth, iCaptionHeihgt, iSmCaptionWidth, iSmCaptionHeight, iMenuWidth, iMenuHeight, Open32 utilizes the following system values.

   ----------------------------------------------------------
     NONCLIENTMETRICS       Option
   ----------------------------------------------------------
     iBorderWidth     <==== SM_CXFRAME
     iScrollWidth     <==== SM_CXVSCROLL
     iScrollHeight    <==== SM_CYHSCROLL
     iCaptionWidth    <==== N/A (SM_CYCAPTION is returned as WIN95 does.)
     iCaptionHeight   <==== SM_CYCAPTION
     iSmCaptionWidth   ==== N/A (SM_CYCAPTION is returned.)
     iSmCaptionHeight  ==== N/A (SM_CYCAPTION is returned.)
     iMenuWidth        ==== N/A (SM_CYMENU is returned as WIN95 does.)
     iMenuHeight      <==== SM_CYMENU
   ----------------------------------------------------------
  

• SPI_GETDEFAULTINPUTLANG

  Calls an IMM class member function to retrieve the default IME.

• SPI_SETDEFAULTINPUTLANG

  Calls an IMM class member function to set the default IME.

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