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185 lines
4.1 KiB
185 lines
4.1 KiB
#ifndef __NVCTRLLIB_H
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#define __NVCTRLLIB_H
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#include "NVCtrl.h"
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#if defined(__cplusplus)
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extern "C" {
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#endif
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/*
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* XNVCTRLQueryExtension -
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*
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* Returns True if the extension exists, returns False otherwise.
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* event_basep and error_basep are the extension event and error
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* bases. Currently, no extension specific errors or events are
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* defined.
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*/
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Bool XNVCTRLQueryExtension (
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Display *dpy,
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int *event_basep,
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int *error_basep
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);
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/*
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* XNVCTRLQueryVersion -
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*
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* Returns True if the extension exists, returns False otherwise.
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* major and minor are the extension's major and minor version
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* numbers.
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*/
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Bool XNVCTRLQueryVersion (
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Display *dpy,
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int *major,
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int *minor
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);
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/*
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* XNVCTRLIsNvScreen
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*
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* Returns True is the specified screen is controlled by the NVIDIA
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* driver. Returns False otherwise.
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*/
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Bool XNVCTRLIsNvScreen (
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Display *dpy,
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int screen
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);
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/*
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* XNVCTRLSetAttribute -
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*
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* Sets the attribute to the given value. The attributes and their
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* possible values are listed in NVCtrl.h.
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*
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* Not all attributes require the display_tqmask parameter; see
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* NVCtrl.h for details.
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*
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* Possible errors:
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* BadValue - The screen or attribute doesn't exist.
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* BadMatch - The NVIDIA driver is not present on that screen.
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*/
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void XNVCTRLSetAttribute (
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Display *dpy,
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int screen,
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unsigned int display_tqmask,
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unsigned int attribute,
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int value
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);
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/*
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* XNVCTRLQueryAttribute -
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*
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* Returns True if the attribute exists. Returns False otherwise.
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* If XNVCTRLQueryAttribute returns True, value will contain the
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* value of the specified attribute.
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*
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* Not all attributes require the display_tqmask parameter; see
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* NVCtrl.h for details.
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*
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* Possible errors:
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* BadValue - The screen doesn't exist.
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* BadMatch - The NVIDIA driver is not present on that screen.
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*/
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Bool XNVCTRLQueryAttribute (
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Display *dpy,
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int screen,
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unsigned int display_tqmask,
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unsigned int attribute,
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int *value
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);
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/*
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* XNVCTRLQueryStringAttribute -
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*
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* Returns True if the attribute exists. Returns False otherwise.
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* If XNVCTRLQueryStringAttribute returns True, *ptr will point to an
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* allocated string containing the string attribute requested. It is
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* the caller's responsibility to free the string when done.
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*
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* Possible errors:
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* BadValue - The screen doesn't exist.
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* BadMatch - The NVIDIA driver is not present on that screen.
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* BadAlloc - Insufficient resources to fulfill the request.
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*/
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Bool XNVCTRLQueryStringAttribute (
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Display *dpy,
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int screen,
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unsigned int display_tqmask,
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unsigned int attribute,
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char **ptr
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);
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/*
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* XNVCTRLQueryValidAttributeValues -
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*
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* Returns True if the attribute exists. Returns False otherwise. If
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* XNVCTRLQueryValidAttributeValues returns True, values will indicate
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* the valid values for the specified attribute; see the description
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* of NVCTRLAttributeValidValues in NVCtrl.h.
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*/
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Bool XNVCTRLQueryValidAttributeValues (
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Display *dpy,
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int screen,
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unsigned int display_tqmask,
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unsigned int attribute,
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NVCTRLAttributeValidValuesRec *values
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);
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/*
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* XNVCtrlSelectNotify -
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*
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* This enables/disables receiving of NV-CONTROL events. The type
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* specifies the type of event to enable (currently, the only type is
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* ATTRIBUTE_CHANGED_EVENT); onoff controls whether receiving this
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* type of event should be enabled (True) or disabled (False).
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*
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* Returns True if successful, or False if the screen is not
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* controlled by the NVIDIA driver.
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*/
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Bool XNVCtrlSelectNotify (
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Display *dpy,
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int screen,
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int type,
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Bool onoff
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);
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/*
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* XNVCtrlEvent structure
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*/
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typedef struct {
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int type;
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unsigned long serial;
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Bool send_event; /* always FALSE, we don't allow send_events */
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Display *display;
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Time time;
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int screen;
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unsigned int display_tqmask;
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unsigned int attribute;
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int value;
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} XNVCtrlAttributeChangedEvent;
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typedef union {
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int type;
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XNVCtrlAttributeChangedEvent attribute_changed;
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long pad[24];
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} XNVCtrlEvent;
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#if defined(__cplusplus)
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}
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#endif
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#endif /* __NVCTRLLIB_H */
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