CalculateVideoMemoryRequirements method of the Msvm_Synth3dVideoPool class

Article
05/31/2018

Calculates the amount of video memory required for a RemoteFX virtual machine.

Syntax

uint32 CalculateVideoMemoryRequirements(
  [in]  uint32 monitorResolution,
  [in]  uint32 numberOfMonitors,
  [out] uint64 requiredVideoMemory
);

Parameters

monitorResolution [in]

The maximum monitor resolution for the virtual machine. This must be one of the following values.

Value	Meaning
0	The maximum resolution is 1024 768.
1	The maximum resolution is 1280 1024.
2	The maximum resolution is 1600 1200.
3	The maximum resolution is 1920 1200.

numberOfMonitors [in]

The maximum number of monitors for the virtual machine. The minimum number of monitors is one and the maximum is dependent upon the maximum screen resolution. The following table defines the maximum number of monitors allowed for different resolutions.

Resolution	Maximum monitors
1024 768	4
1280 1024	4
1600 1200	3
1920 1200	2

requiredVideoMemory [out]

Receives the required amount of video memory, in bytes.

Return value

Returns a status code, which can be one of the following values.

Return code/value	Description
Completed with No Error 0	Successful.
Method Parameters Checked - Job Started 4096	Job started.
Failed 32768	Failed.
Access Denied 32769	Access denied.
Not Supported 32770	Not supported.
Status is unknown 32771	Status is unknown.
Timeout 32772	Timeout.
Invalid parameter 32773	A parameter is not valid.
System is in used 32774	System is in use.
Invalid state for this operation 32775	The state is not valid for this operation.
Incorrect data type 32776	Incorrect data type.
System is not available 32777	System is not available.
Out of memory 32778	Out of memory.

Remarks

This method is typically called on the host system to determine if the host has enough available video memory to host a RemoteFX virtual machine. To do this, you compare the amount of video memory calculated by this method with the Msvm_PhysicalGPUInfo.AvailableVideoMemory property to determine if the host machine has enough available video memory. You can use this information to determine if a virtual machine can be moved to the host system.

Requirements


Minimum supported client	None supported
Minimum supported server	Windows Server 2008 R2 with SP1
End of client support	None supported
End of server support	Windows Server 2012
Namespace	Root\Virtualization
MOF	WindowsVirtualization.mof

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