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src/jdk.accessibility/windows/native/libjabsysinfo/AccessBridgeSysInfo.cpp

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  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 #include <exception>
  27 #include <stdexcept>
  28 #include <jni.h>
  29 #include <windows.h>
  30 #include <WinDef.h>
  31 
  32 extern "C" {
  33 
  34 BOOL WINAPI DllMain(HINSTANCE hinstDll, DWORD fdwReason, LPVOID lpvReserved) {
  35     return TRUE;
  36 }
  37 
  38 // Determine bitness of Win OS
  39 JNIEXPORT jboolean JNICALL
  40 Java_com_sun_java_accessibility_AccessBridge_isSysWow(JNIEnv *env, jobject callingObj) {
  41     BOOL bIsWow64 = FALSE;
  42     typedef BOOL (WINAPI *LPFN_ISWOW64PROCESS) (HANDLE, PBOOL);
  43 
  44     LPFN_ISWOW64PROCESS fnIsWow64Process =
  45         (LPFN_ISWOW64PROCESS)GetProcAddress(GetModuleHandle(TEXT("kernel32")), "IsWow64Process");
  46 
  47     if (fnIsWow64Process != NULL) {
  48         if (!fnIsWow64Process(GetCurrentProcess(), &bIsWow64)) {
  49             throw std::runtime_error("fnIsWow64Process() failed");
  50         }
  51     }
  52 
  53     return bIsWow64 ? JNI_TRUE : JNI_FALSE;
  54 }
  55 
  56 }


  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 #include <exception>
  27 #include <stdexcept>
  28 #include <jni.h>
  29 #include <windows.h>
  30 #include <WinDef.h>
  31 
  32 extern "C" {
  33 
  34 BOOL WINAPI DllMain(HINSTANCE hinstDll, DWORD fdwReason, LPVOID lpvReserved) {
  35     return TRUE;
  36 }
  37 
  38 // Determine bitness of Win OS
  39 JNIEXPORT jboolean JNICALL
  40 Java_com_sun_java_accessibility_internal_AccessBridge_isSysWow(JNIEnv *env, jobject callingObj) {
  41     BOOL bIsWow64 = FALSE;
  42     typedef BOOL (WINAPI *LPFN_ISWOW64PROCESS) (HANDLE, PBOOL);
  43 
  44     LPFN_ISWOW64PROCESS fnIsWow64Process =
  45         (LPFN_ISWOW64PROCESS)GetProcAddress(GetModuleHandle(TEXT("kernel32")), "IsWow64Process");
  46 
  47     if (fnIsWow64Process != NULL) {
  48         if (!fnIsWow64Process(GetCurrentProcess(), &bIsWow64)) {
  49             throw std::runtime_error("fnIsWow64Process() failed");
  50         }
  51     }
  52 
  53     return bIsWow64 ? JNI_TRUE : JNI_FALSE;
  54 }
  55 
  56 }
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