INVOKEVM.C

// 
//  invokevm.c 
// 
//  Copyright (c) 1997, Microsoft Corporation 
// 
//  Demonstrates the use of the PrepareThreadForJava and UnprepareThreadForJava 
//  invocation APIs. 
// 
 
#include <windows.h> 
#include <stdio.h> 
#include <native.h> 
 
void main(int argc, char *argv[]) 
{ 
    HRESULT hr; 
    ThreadEntryFrame threadEntryFrame; 
    ClassClass *pClass; 
 
    hr = CoInitialize(NULL); 
 
    if (hr == S_OK) { 
 
        //  Call this API before calling into the Microsoft Java VM to allow the 
        //  VM to allocate any per-thread structures and to do any first-time 
        //  initialization.  After return from this call, Java objects may be 
        //  accessed or RNI APIs may be called. 
        if (PrepareThreadForJava(&threadEntryFrame)) { 
 
            pClass = FindClass(NULL, "TestClass", TRUE); 
 
            if (pClass != NULL) { 
                execute_java_static_method(NULL, pClass, "someMethod", "()V"); 
            } else { 
                printf("Failed to find class!\n"); 
            } 
 
            //  Detaches the "entry frame" from this thread.  After return from 
            //  this call, it is no longer safe to directly touch Java objects 
            //  or call RNI APIs. 
            UnprepareThreadForJava(&threadEntryFrame); 
 
        } else { 
            printf("Failed to initialize thread!\n"); 
        } 
 
        CoUninitialize(); 
    } 
}