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Query the system for information
PhSysInfo_t * PtQuerySystemInfo(
PtWidget_t *widget,
PhSysInfo_t *sys_ptr );
ph
This function queries the system for information on the given
widget:
- system bandwidth
- graphics drivers and their capabilities
- pointing devices
- keyboard devices.
The information is stored in the
PhSysInfo_t
structure pointed to by sys_ptr.
This function calls
PhQuerySystemInfo(),
but buffers the
information, reducing the number of messages sent to the Photon server.
It calls PhQuerySystemInfo() if the data
has been made invalid since the previous call because:
- the window containing the widget was moved or resized
- you switched consoles
- a graphics or input driver was started or stopped
- someone started or stopped dittoing you
- ...
The rectangular area passed to
PhQuerySystemInfo() is the extent of the window containing the
widget (or the widget itself if it's a window).
A pointer to the PhSysInfo_t structure passed to the function,
or NULL if an error occurred.
Photon
Safety: | |
Interrupt handler |
No |
Signal handler |
No |
Thread |
No |
PhQuerySystemInfo(),
PhSysInfo_t
“System information”
in the Regions chapter of the Photon Programmer's Guide.
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