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WINDOWS
kbui
The information in this article applies to:
- Microsoft Win32 Application Programming Interface (API)
included with Microsoft Windows 95
The SystemParametersInfo() API provides functionality to get or set many
Windows System Parameters based on the action flag if Windows extension #1
is installed. Here are some examples:
- The Full Window Drag system parameter can be retrieved or set by using
SPI_GETDRAGFULLWINDOWS/SPI_SETDRAGFULLWINDOWS as the action flag in the
SystemParametersInfo() API. When full drag windows is enabled, users can
move entire windows instead of just moving the outline. This makes it
easier to see how a window looks while being resized. This feature is
not available with Windows, so calling SystemParametersInfo using the
SPI_GETDRAGFULLWINDOWS or SPI_SETDRAGFULLWINDOWS flag will always fail.
However, this feature will be available if an add-on product, Windows
extension #1, is installed.
- The Font Smoothing setting can be retrieved or set by using
SPI_GETFONTSMOOTHING or SPI_SETFONTSMOOTHING as the action flag
in the SystemParametersInfo() API. Enabling this system setting tells
Windows to draw smooth characters using font anti-aliasing. This feature
is not available with Windows. Thus the call to SystemParametersInfo
with the SPI_GETFONTSMOOTHING or SPI_SETFONTSMOOTHING flag will always
fail. However, this Font Smoothing feature will be available if an
add-on product, Windows extension #1, is installed.
- SystemParametersInfo(SPI_GETWINDOWSEXTENSION, 1, 0, 0) returns true if
Windows extension #1 is installed otherwise false. The Second parameter
denotes Windows extension #1.
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