GetNumberOfHeads

Return the number of physical output heads supported by the device

Declaration

N_int32 NAPI GA_initFuncs::GetNumberOfHeads(void)

Prototype In

snap/graphics.h

Return Value

Number of available output heads

Description

This function is used to determine if the hardware device supports multiple output heads, and if so how many heads. By default all drivers will return a value of 1 if they do not support multiple heads, but devices can support as many heads as the hardware is capable of (to date only dual and triple head hardware exist).

If the hardware has multiple output heads, the SetActiveHead and GetActiveHead functions can be used to change the active head being used.

See Also

SetActiveHead, GetActiveHead

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