def query_target_count(self, target):
'''return the target count'''
rq = _NVCtrlQueryTargetCountRequest(self.opcode, target.type())
binrp = minx.Xchange(self.xsock, rq)
if binrp[0] == 0:
raise minx.XServerError(binrp)
else:
return _NVCtrlQueryTargetCountReply(binrp)
def query_valid_attr_values(self, target, displays, attr):
display_mask = self._displays2mask(displays)
rq = _NVCtrlQueryValidAttributeValuesRequest(self.opcode, target.id(),
target.type(), display_mask, attr)
binrp = minx.Xchange(self.xsock, rq)
if binrp[0] == 0:
raise minx.XServerError(binrp)
else:
return _NVCtrlQueryValidAttributeValuesReply(binrp)
def query_binary_data(self, target, displays, attr):
'''return binary data'''
display_mask = self._displays2mask(displays)
rq = _NVCtrlQueryBinaryDataRequest(self.opcode, target.id(),
target.type(), display_mask, attr)
binrp = minx.Xchange(self.xsock, rq)
if binrp[0] == 0:
raise minx.XServerError(binrp)
else:
return _NVCtrlQueryBinaryDataReply(binrp)
def query_int_attribute(self, target, displays, attr):
'''return the value of an integer attribute'''
display_mask = self._displays2mask(displays)
rq = _NVCtrlQueryAttributeRequest(self.opcode, target.id(),
target.type(), display_mask, attr)
binrp = minx.Xchange(self.xsock, rq)
if binrp[0] == 0:
raise minx.XServerError(binrp)
else:
return _NVCtrlQueryAttributeReply(binrp)
def string_operation(self, target, displays, attr, data):
'''execute a string operation'''
display_mask = self._displays2mask(displays)
rq = _NVCtrlStringOperationRequest(self.opcode, target.id(),
target.type(), display_mask, attr, data)
binrp = minx.Xchange(self.xsock, rq)
if binrp[0] == 0:
raise minx.XServerError(binrp)
else:
return _NVCtrlStringOperationReply(binrp)
def set_string_attribute(self, target, displays, attr, data):
'''set the value of a string attribute. target has to be a Screen.'''
if not isinstance(target, Screen):
raise ValueError( 'SetStringAttribute can only be executed on a screen' )
display_mask = self._displays2mask(displays)
rq = _NVCtrlSetStringAttributeRequest(self.opcode, target.id(),
display_mask, attr, data)
binrp = minx.Xchange(self.xsock, rq)
if binrp[0] == 0:
raise minx.XServerError(binrp)
else:
return _NVCtrlSetStringAttributeReply(binrp)
def get_version(self):
'''this function uses NVCtrlQueryExtension to get
the major and minor versions of the NV-CONTROL extension
in use. returned as a tuple (major,minor)'''
if self.version:
return self.version
rq = _NVCtrlQueryExtensionRequest(self.opcode)
binrp = minx.Xchange(self.xsock, rq)
if binrp[0] == 0:
raise minx.XServerError(binrp)
else:
nvc = _NVCtrlQueryExtensionReply(binrp)
self.version = (nvc.major, nvc.minor)
return self.version
