Enable_Touch_1st_Meg

The Enable_Touch_1st_Meg service enables the first 1 megabyte of memory for the current virtual machine. The service sets the present bit for the first page directory allowing a virtual device to access addresses in the range.

This is an asynchronous service but is only available in the debugging version of Windows.

Parameters

This service has no parameters.

Return Value

This service has no return value.

Comments

Virtual devices normally call this service by using the Begin_Touch_1st_Meg macro.

If the debugging version is not present, this service returns immediately.

See Also

Begin_Touch_1st_Meg, Disable_Touch_1st_Meg