## Virtual Device Driver Reference for OS/2

[prev][next][parent][TOC]

### VDHClearVIRR - Format

This function clears the virtual Interrupt Request Register (IRR) in the Virtual Programmable Interrupt Controller (VPIC) of the specified DOS session for the IRQ specified. The simulation of interrupts to the specified DOS session is stopped on this IRQ level.

    #include mvdm.h

    HVDM    VDMHandle;  /*  DOS session handle */

    HIRQ    IRQHandle;  /*  IRQ handle from VDHOpenVIRQ */

    VDHClearVIRR(VDMHandle, IRQHandle);