## Virtual Device Driver Reference for OS/2

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### VDHPushInt - Purpose

Context Issues: This function can be called only in the DOS session-task context.

DOS Session Terminations: There are no DOS session termination implications for this function.

Notes: This function does not take effect until the operating system returns to V86 mode. This function always returns successful when the DOS session is in V86 mode because no data accesses below 1MB can cause a fault .